Change

.drone.yml

@@ -3,18 +3,37 @@ kind: pipeline
 name: unit
 
 steps:
-- name: build
-  image: golang
-  commands:
-  - go test
-  - go build
+  # -------------------- tests (host arch only) --------------------
+  - name: test
+    image: golang:alpine
+    pull: if-not-exists
+    commands:
+      - go test ./...
+
+  # -------------------- build + push multi-arch image --------------------
+  - name: publish
+    image: plugins/docker:latest
+    settings:
+      username:
+        from_secret: docker-user
+      password:
+        from_secret: docker-pw
+      #repo:
+      #  from_secret: docker-repo
+      repo: opencloudregistry/oc-discovery
+
+      # build context & dockerfile
+      context: .
+      dockerfile: Dockerfile
+
+      # enable buildx / multi-arch
+      buildx: true
+      platforms:
+        - linux/amd64
+        - linux/arm64
+        - linux/arm/v7
+
+      # tags to push (all as a single multi-arch manifest)
+      tags:
+        - latest
 
-- name: publish
-  image: plugins/docker
-  settings:
-    username:
-      from_secret: docker-user
-    password:
-      from_secret: docker-pw
-    repo:
-      from_secret: docker-repo

Dockerfile

@@ -1,31 +1,62 @@
-FROM golang:alpine as builder
+# ========================
+# Global build arguments
+# ========================
+ARG CONF_NUM
+
+# ========================
+# Dependencies stage
+# ========================
+FROM golang:alpine AS deps
+ARG CONF_NUM
 
 WORKDIR /app
 
+COPY go.mod go.sum ./
+RUN sed -i '/replace/d' go.mod
+RUN go mod download
+
+# ========================
+# Builder stage
+# ========================
+FROM golang:alpine AS builder
+ARG CONF_NUM
+
+WORKDIR /oc-discovery
+
+# Reuse Go cache
+COPY --from=deps /go/pkg /go/pkg
+COPY --from=deps /app/go.mod /app/go.sum ./
+
+# App sources
 COPY . .
+# Clean replace directives again (safety)
+RUN sed -i '/replace/d' go.mod
 
-RUN apk add git
+# Build package
+RUN go install github.com/beego/bee/v2@latest
+RUN bee pack
 
-RUN go get github.com/beego/bee/v2 && go install github.com/beego/bee/v2@master
+# Extract bundle
+RUN mkdir -p /app/extracted \
+ && tar -zxvf oc-discovery.tar.gz -C /app/extracted
 
-RUN timeout 15 bee run -gendoc=true -downdoc=true -runmode=dev || :
-
-RUN sed -i 's/http:\/\/127.0.0.1:8080\/swagger\/swagger.json/swagger.json/g' swagger/index.html
-
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags="-w -s" .
-
-RUN ls /app
-
-FROM scratch
+# ========================
+# Runtime stage
+# ========================
+FROM golang:alpine
+ARG CONF_NUM
 
 WORKDIR /app
 
-COPY --from=builder /app/oc-discovery /usr/bin/ 
-COPY --from=builder /app/swagger /app/swagger
-COPY peers.json /app/
-COPY identity.json /app/
-COPY docker_discovery.json /etc/oc/discovery.json
+RUN mkdir ./pem
 
-EXPOSE 8080
+COPY --from=builder /app/extracted/pem/private${CONF_NUM:-1}.pem ./pem/private.pem
+COPY --from=builder /app/extracted/psk ./psk
+COPY --from=builder /app/extracted/pem/public${CONF_NUM:-1}.pem ./pem/public.pem
+
+COPY --from=builder /app/extracted/oc-discovery /usr/bin/oc-discovery
+COPY --from=builder /app/extracted/docker_discovery${CONF_NUM:-1}.json /etc/oc/discovery.json
+
+EXPOSE 400${CONF_NUM:-1}
 
 ENTRYPOINT ["oc-discovery"]

LICENSE

@@ -1,9 +0,0 @@
-MIT License
-
-Copyright (c) <year> <copyright holders>
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

LICENSE.md

@@ -0,0 +1,660 @@
+# GNU AFFERO GENERAL PUBLIC LICENSE
+
+Version 3, 19 November 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc.
+<https://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+## Preamble
+
+The GNU Affero General Public License is a free, copyleft license for
+software and other kinds of works, specifically designed to ensure
+cooperation with the community in the case of network server software.
+
+The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+our General Public Licenses are intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains
+free software for all its users.
+
+When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
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+Developers that use our General Public Licenses protect your rights
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+you this License which gives you legal permission to copy, distribute
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+
+A secondary benefit of defending all users' freedom is that
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+The GNU General Public License permits making a modified version and
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+
+An older license, called the Affero General Public License and
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+work and works based on it.
+
+A patent license is "discriminatory" if it does not include within the
+scope of its coverage, prohibits the exercise of, or is conditioned on
+the non-exercise of one or more of the rights that are specifically
+granted under this License. You may not convey a covered work if you
+are a party to an arrangement with a third party that is in the
+business of distributing software, under which you make payment to the
+third party based on the extent of your activity of conveying the
+work, and under which the third party grants, to any of the parties
+who would receive the covered work from you, a discriminatory patent
+license (a) in connection with copies of the covered work conveyed by
+you (or copies made from those copies), or (b) primarily for and in
+connection with specific products or compilations that contain the
+covered work, unless you entered into that arrangement, or that patent
+license was granted, prior to 28 March 2007.
+
+Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+### 12. No Surrender of Others' Freedom.
+
+If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under
+this License and any other pertinent obligations, then as a
+consequence you may not convey it at all. For example, if you agree to
+terms that obligate you to collect a royalty for further conveying
+from those to whom you convey the Program, the only way you could
+satisfy both those terms and this License would be to refrain entirely
+from conveying the Program.
+
+### 13. Remote Network Interaction; Use with the GNU General Public License.
+
+Notwithstanding any other provision of this License, if you modify the
+Program, your modified version must prominently offer all users
+interacting with it remotely through a computer network (if your
+version supports such interaction) an opportunity to receive the
+Corresponding Source of your version by providing access to the
+Corresponding Source from a network server at no charge, through some
+standard or customary means of facilitating copying of software. This
+Corresponding Source shall include the Corresponding Source for any
+work covered by version 3 of the GNU General Public License that is
+incorporated pursuant to the following paragraph.
+
+Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU General Public License into a single
+combined work, and to convey the resulting work. The terms of this
+License will continue to apply to the part which is the covered work,
+but the work with which it is combined will remain governed by version
+3 of the GNU General Public License.
+
+### 14. Revised Versions of this License.
+
+The Free Software Foundation may publish revised and/or new versions
+of the GNU Affero General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
+specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation. If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever
+published by the Free Software Foundation.
+
+If the Program specifies that a proxy can decide which future versions
+of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+### 15. Disclaimer of Warranty.
+
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT
+WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND
+PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
+DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
+CORRECTION.
+
+### 16. Limitation of Liability.
+
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
+CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
+ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT
+NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
+LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM
+TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
+PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+### 17. Interpretation of Sections 15 and 16.
+
+If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+END OF TERMS AND CONDITIONS
+
+## How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these
+terms.
+
+To do so, attach the following notices to the program. It is safest to
+attach them to the start of each source file to most effectively state
+the exclusion of warranty; and each file should have at least the
+"copyright" line and a pointer to where the full notice is found.
+
+        <one line to give the program's name and a brief idea of what it does.>
+        Copyright (C) <year>  <name of author>
+
+        This program is free software: you can redistribute it and/or modify
+        it under the terms of the GNU Affero General Public License as
+        published by the Free Software Foundation, either version 3 of the
+        License, or (at your option) any later version.
+
+        This program is distributed in the hope that it will be useful,
+        but WITHOUT ANY WARRANTY; without even the implied warranty of
+        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+        GNU Affero General Public License for more details.
+
+        You should have received a copy of the GNU Affero General Public License
+        along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper
+mail.
+
+If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source. For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code. There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for
+the specific requirements.
+
+You should also get your employer (if you work as a programmer) or
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. For more information on this, and how to apply and follow
+the GNU AGPL, see <https://www.gnu.org/licenses/>.

Makefile

@@ -0,0 +1,26 @@
+.DEFAULT_GOAL := all
+
+build: clean
+	bee pack
+
+run:
+	./oc-discovery
+
+clean:
+	rm -rf  oc-discovery
+
+docker:
+	DOCKER_BUILDKIT=1 docker build -t oc-discovery -f Dockerfile .
+	docker tag oc-discovery opencloudregistry/oc-discovery:latest
+
+publish-kind:
+	kind load docker-image opencloudregistry/oc-discovery:latest --name opencloud
+
+publish-registry:
+	docker push opencloudregistry/oc-discovery:latest
+
+all: docker publish-kind
+
+ci: docker publish-registry
+
+.PHONY: build run clean docker publish-kind publish-registry

README.md

@@ -14,3 +14,34 @@ If default Swagger page is displayed instead of tyour api, change url in swagger
 
     url: "swagger.json"
 
+
+sequenceDiagram
+    autonumber
+    participant Dev as Développeur / Owner
+    participant IPFS as Réseau IPFS
+    participant CID as CID (hash du fichier)
+    participant Argo as Orchestrateur Argo
+    participant CU as Compute Unit
+    participant MinIO as Storage MinIO
+
+    %% 1. Ajout du fichier sur IPFS
+    Dev->>IPFS: Chiffre et ajoute fichier (algo/dataset)
+    IPFS-->>CID: Génère CID unique (hash du fichier)
+    Dev->>Dev: Stocke CID pour référence future
+
+    %% 2. Orchestration par Argo
+    Argo->>CID: Requête CID pour job
+    CID-->>Argo: Fournit le fichier (vérifié via hash)
+
+    %% 3. Execution sur la Compute Unit
+    Argo->>CU: Déploie job avec fichier récupéré
+    CU->>CU: Vérifie hash (CID) pour intégrité
+    CU->>CU: Exécute l'algo sur le dataset
+
+    %% 4. Stockage des résultats
+    CU->>MinIO: Stocke output (résultats) ou logs
+    CU->>IPFS: Optionnel : ajoute output sur IPFS (nouveau CID)
+
+    %% 5. Vérification et traçabilité
+    Dev->>IPFS: Vérifie CID output si nécessaire
+    CU->>Dev: Fournit résultat et log de hash

conf/config.go

@@ -0,0 +1,43 @@
+package conf
+
+import "sync"
+
+type Config struct {
+	Name                   string
+	Hostname               string
+	PSKPath                string
+	PublicKeyPath          string
+	PrivateKeyPath         string
+	NodeEndpointPort       int64
+	IndexerAddresses string
+
+	PeerIDS string // TO REMOVE
+
+	NodeMode string
+
+	MinIndexer int
+	MaxIndexer int
+	// SearchTimeout is the max duration without a new result before the
+	// distributed peer search stream is closed. Default: 5s.
+	SearchTimeout int // seconds; 0 → use default (5)
+
+	// Indexer connection burst guard: max new connections accepted within the window.
+	// 0 → use defaults (20 new peers per 30s).
+	MaxConnPerWindow int // default 20
+	ConnWindowSecs   int // default 30
+
+	// Per-node behavioral limits (sliding 60s window). 0 → use built-in defaults.
+	MaxHBPerMinute      int // default 5
+	MaxPublishPerMinute int // default 10
+	MaxGetPerMinute     int // default 50
+}
+
+var instance *Config
+var once sync.Once
+
+func GetConfig() *Config {
+	once.Do(func() {
+		instance = &Config{}
+	})
+	return instance
+}

controllers/identity.go

@@ -1,41 +0,0 @@
-package controllers
-
-import (
-	"encoding/json"
-	"oc-discovery/models"
-
-	beego "github.com/beego/beego/v2/server/web"
-)
-
-// Operations about Identitys
-type IdentityController struct {
-	beego.Controller
-}
-
-// @Title CreateIdentity
-// @Description create identitys
-// @Param	body		body 	models.Identity	true		"body for identity content"
-// @Success 200 {result} "ok" or error
-// @Failure 403 body is empty
-// @router / [post]
-func (u *IdentityController) Post() {
-	var identity models.Identity
-	json.Unmarshal(u.Ctx.Input.RequestBody, &identity)
-	err := models.UpdateIdentity(&identity)
-	if err != nil {
-		u.Data["json"] = err.Error()
-	} else {
-		u.Data["json"] = "ok"
-	}
-	u.ServeJSON()
-}
-
-// @Title Get
-// @Description get Identity
-// @Success 200 {object} models.Identity
-// @router / [get]
-func (u *IdentityController) GetAll() {
-	identity := models.GetIdentity()
-	u.Data["json"] = identity
-	u.ServeJSON()
-}

controllers/peer.go

@@ -1,80 +0,0 @@
-package controllers
-
-import (
-	"encoding/json"
-	"oc-discovery/models"
-
-	beego "github.com/beego/beego/v2/server/web"
-)
-
-// Operations about peer
-type PeerController struct {
-	beego.Controller
-}
-
-// @Title Create
-// @Description create peers
-// @Param	body		body 	[]models.Peer	true		"The peer content"
-// @Success 200 {string} models.Peer.Id
-// @Failure 403 body is empty
-// @router / [post]
-func (o *PeerController) Post() {
-	var ob []models.Peer
-	json.Unmarshal(o.Ctx.Input.RequestBody, &ob)
-	models.AddPeers(ob)
-	o.Data["json"] = map[string]string{"Added": "OK"}
-	o.ServeJSON()
-}
-
-// @Title Get
-// @Description find peer by peerid
-// @Param	peerId		path 	string	true		"the peerid you want to get"
-// @Success 200 {peer} models.Peer
-// @Failure 403 :peerId is empty
-// @router /:peerId [get]
-func (o *PeerController) Get() {
-	peerId := o.Ctx.Input.Param(":peerId")
-
-	peer, err := models.GetPeer(peerId)
-	if err != nil {
-		o.Data["json"] = err.Error()
-	} else {
-		o.Data["json"] = peer
-	}
-
-	o.ServeJSON()
-}
-
-// @Title Find
-// @Description find peers with query
-// @Param	query		path 	string	true	"the keywords you need"
-// @Success 200 {peers} []models.Peer
-// @Failure 403
-// @router /find/:query [get]
-func (o *PeerController) Find() {
-	query := o.Ctx.Input.Param(":query")
-	peers, err := models.FindPeers(query)
-	if err != nil {
-		o.Data["json"] = err.Error()
-	} else {
-		o.Data["json"] = peers
-	}
-	o.ServeJSON()
-}
-
-// @Title Delete
-// @Description delete the peer
-// @Param	peerId		path 	string	true		"The peerId you want to delete"
-// @Success 200 {string} delete success!
-// @Failure 403 peerId is empty
-// @router /:peerId [delete]
-func (o *PeerController) Delete() {
-	peerId := o.Ctx.Input.Param(":peerId")
-	err := models.Delete(peerId)
-	if err != nil {
-		o.Data["json"] = err.Error()
-	} else {
-		o.Data["json"] = "delete success!"
-	}
-	o.ServeJSON()
-}

controllers/version.go

@@ -1,19 +0,0 @@
-package controllers
-
-import (
-	beego "github.com/beego/beego/v2/server/web"
-)
-
-// VersionController operations for Version
-type VersionController struct {
-	beego.Controller
-}
-
-// @Title GetAll
-// @Description get version
-// @Success 200
-// @router / [get]
-func (c *VersionController) GetAll() {
-	c.Data["json"] = map[string]string{"version": "1"}
-	c.ServeJSON()
-}

daemons/node/common/common_cache.go

@@ -0,0 +1,294 @@
+package common
+
+import (
+	"errors"
+	"sync"
+	"time"
+
+	pp "github.com/libp2p/go-libp2p/core/peer"
+	"github.com/libp2p/go-libp2p/core/protocol"
+)
+
+type Score struct {
+	FirstContacted time.Time
+	UptimeTracker  *UptimeTracker
+	LastFillRate   float64
+	Score          float64
+	// IsSeed marks indexers that came from the IndexerAddresses static config.
+	// Seeds are sticky: they are never evicted by the score threshold alone.
+	// A seed is only removed when: (a) heartbeat fails, or (b) it sends
+	// SuggestMigrate and the node already has MinIndexer non-seed alternatives.
+	IsSeed bool
+	// challenge bookkeeping (2-3 peers per batch, raw data returned by indexer)
+	hbCount          int // heartbeats sent since last challenge batch
+	nextChallenge    int // send challenges when hbCount reaches this (rand 1-10)
+	challengeTotal   int // number of own-PeerID challenges sent (ground truth)
+	challengeCorrect int // own PeerID found AND lastSeen within 2×interval
+	// fill rate consistency: cross-check reported fillRate vs peerCount/maxNodes
+	fillChecked    int
+	fillConsistent int
+	// BornAt stability
+	LastBornAt    time.Time
+	bornAtChanges int
+	// DHT challenge
+	dhtChecked      int
+	dhtSuccess      int
+	dhtBatchCounter int
+	// Peer witnesses
+	witnessChecked    int
+	witnessConsistent int
+}
+
+// computeNodeSideScore computes the node's quality assessment of an indexer from raw metrics.
+// All ratios are in [0,1]; result is in [0,100].
+//   - uptimeRatio      : gap-aware fraction of lifetime the indexer was reachable
+//   - challengeAccuracy: own-PeerID challenges answered correctly (found + recent lastSeen)
+//   - latencyScore     : 1 - RTT/maxRTT, clamped [0,1]
+//   - fillScore        : 1 - fillRate — prefer less-loaded indexers
+//   - fillConsistency  : fraction of ticks where peerCount/maxNodes ≈ fillRate (±10%)
+func (s *Score) ComputeNodeSideScore(latencyScore float64) float64 {
+	uptime := s.UptimeTracker.UptimeRatio()
+	challengeAccuracy := 1.0
+	if s.challengeTotal > 0 {
+		challengeAccuracy = float64(s.challengeCorrect) / float64(s.challengeTotal)
+	}
+	fillScore := 1.0 - s.LastFillRate
+	fillConsistency := 1.0
+	if s.fillChecked > 0 {
+		fillConsistency = float64(s.fillConsistent) / float64(s.fillChecked)
+	}
+	witnessConsistency := 1.0
+	if s.witnessChecked > 0 {
+		witnessConsistency = float64(s.witnessConsistent) / float64(s.witnessChecked)
+	}
+	dhtSuccessRate := 1.0
+	if s.dhtChecked > 0 {
+		dhtSuccessRate = float64(s.dhtSuccess) / float64(s.dhtChecked)
+	}
+	base := ((0.20 * uptime) +
+		(0.20 * challengeAccuracy) +
+		(0.15 * latencyScore) +
+		(0.10 * fillScore) +
+		(0.10 * fillConsistency) +
+		(0.15 * witnessConsistency) +
+		(0.10 * dhtSuccessRate)) * 100
+	// BornAt stability: each unexpected BornAt change penalises by 30%.
+	bornAtPenalty := 1.0 - 0.30*float64(s.bornAtChanges)
+	if bornAtPenalty < 0 {
+		bornAtPenalty = 0
+	}
+	return base * bornAtPenalty
+}
+
+type Directory struct {
+	MuAddr   sync.RWMutex
+	MuScore  sync.RWMutex
+	MuStream sync.RWMutex
+	Addrs    map[string]*pp.AddrInfo
+	Scores   map[string]*Score
+	Nudge    chan struct{}
+	Streams  ProtocolStream
+}
+
+func (d *Directory) ExistsScore(a string) bool {
+	d.MuScore.RLock()
+	defer d.MuScore.RUnlock()
+	for addr, ai := range d.Scores {
+		if ai != nil && (a == addr) {
+			return true
+		}
+	}
+	return false
+}
+
+func (d *Directory) GetScore(a string) *Score {
+	d.MuScore.RLock()
+	defer d.MuScore.RUnlock()
+	for addr, s := range d.Scores {
+		if s != nil && (a == addr) {
+			sCopy := *s
+			return &sCopy
+		}
+	}
+	return nil
+}
+
+func (d *Directory) GetScores() map[string]*Score {
+	d.MuScore.RLock()
+	defer d.MuScore.RUnlock()
+	score := map[string]*Score{}
+	for addr, s := range d.Scores {
+		score[addr] = s
+	}
+	return score
+}
+
+func (d *Directory) DeleteScore(a string) {
+	d.MuScore.RLock()
+	defer d.MuScore.RUnlock()
+	score := map[string]*Score{}
+	for addr, s := range d.Scores {
+		if a != addr {
+			score[addr] = s
+		}
+	}
+	d.Scores = score
+}
+
+func (d *Directory) SetScore(addr string, score *Score) *pp.AddrInfo {
+	d.MuScore.Lock()
+	defer d.MuScore.Unlock()
+	d.Scores[addr] = score
+	return nil
+}
+
+func (d *Directory) ExistsAddr(addrOrId string) bool {
+	d.MuAddr.RLock()
+	defer d.MuAddr.RUnlock()
+	for addr, ai := range d.Addrs {
+		if ai != nil && (addrOrId == ai.ID.String() || addrOrId == addr) {
+			return true
+		}
+	}
+	return false
+}
+
+func (d *Directory) GetAddr(addrOrId string) *pp.AddrInfo {
+	d.MuAddr.RLock()
+	defer d.MuAddr.RUnlock()
+	for addr, ai := range d.Addrs {
+		if ai != nil && (addrOrId == ai.ID.String() || addrOrId == addr) {
+			aiCopy := *ai
+			return &aiCopy
+		}
+	}
+	return nil
+}
+
+func (d *Directory) DeleteAddr(a string) {
+	d.MuAddr.RLock()
+	defer d.MuAddr.RUnlock()
+	addrs := map[string]*pp.AddrInfo{}
+	for addr, s := range d.Addrs {
+		if a != addr {
+			addrs[addr] = s
+		}
+	}
+	d.Addrs = addrs
+}
+
+func (d *Directory) SetAddr(addr string, info *pp.AddrInfo) *pp.AddrInfo {
+	d.MuAddr.Lock()
+	defer d.MuAddr.Unlock()
+	d.Addrs[addr] = info
+	return nil
+}
+
+func (d *Directory) GetAddrIDs() []pp.ID {
+	d.MuAddr.RLock()
+	defer d.MuAddr.RUnlock()
+	indexers := make([]pp.ID, 0, len(d.Addrs))
+	for _, ai := range d.Addrs {
+		if ai != nil {
+			indexers = append(indexers, ai.ID)
+		}
+	}
+	return Shuffle(indexers)
+}
+
+func (d *Directory) GetAddrsStr() []string {
+	d.MuAddr.RLock()
+	defer d.MuAddr.RUnlock()
+	indexers := make([]string, 0, len(d.Addrs))
+	for s, ai := range d.Addrs {
+		if ai != nil {
+			indexers = append(indexers, s)
+		}
+	}
+
+	return Shuffle(indexers)
+}
+
+type Entry struct {
+	Addr string
+	Info *pp.AddrInfo
+}
+
+func (d *Directory) GetAddrs() []Entry {
+	d.MuAddr.RLock()
+	defer d.MuAddr.RUnlock()
+	indexers := make([]Entry, 0, len(d.Addrs))
+	for addr, ai := range d.Addrs {
+		if ai != nil {
+			indexers = append(indexers, Entry{
+				Addr: addr,
+				Info: ai,
+			})
+		}
+	}
+	return Shuffle(indexers)
+}
+
+// NudgeIndexerHeartbeat signals the indexer heartbeat goroutine to fire immediately.
+func (d *Directory) NudgeIt() {
+	select {
+	case d.Nudge <- struct{}{}:
+	default: // nudge already pending, skip
+	}
+}
+
+type ProtocolStream map[protocol.ID]map[pp.ID]*Stream
+
+func (ps ProtocolStream) Get(protocol protocol.ID) map[pp.ID]*Stream {
+	if ps[protocol] == nil {
+		ps[protocol] = map[pp.ID]*Stream{}
+	}
+
+	return ps[protocol]
+}
+
+func (ps ProtocolStream) GetPerID(protocol protocol.ID, peerID pp.ID) *Stream {
+	if ps[protocol] == nil {
+		ps[protocol] = map[pp.ID]*Stream{}
+	}
+	return ps[protocol][peerID]
+}
+
+func (ps ProtocolStream) Add(protocol protocol.ID, peerID *pp.ID, s *Stream) error {
+	if ps[protocol] == nil {
+		ps[protocol] = map[pp.ID]*Stream{}
+	}
+	if peerID != nil {
+		if s != nil {
+			ps[protocol][*peerID] = s
+		} else {
+			return errors.New("unable to add stream : stream missing")
+		}
+	}
+	return nil
+}
+
+func (ps ProtocolStream) Delete(protocol protocol.ID, peerID *pp.ID) {
+	if streams, ok := ps[protocol]; ok {
+		if peerID != nil && streams[*peerID] != nil && streams[*peerID].Stream != nil {
+			streams[*peerID].Stream.Close()
+			delete(streams, *peerID)
+		} else {
+			for _, s := range ps {
+				for _, v := range s {
+					if v.Stream != nil {
+						v.Stream.Close()
+					}
+				}
+			}
+			delete(ps, protocol)
+		}
+	}
+}
+
+var Indexers = &Directory{
+	Addrs:   map[string]*pp.AddrInfo{},
+	Scores:  map[string]*Score{},
+	Nudge:   make(chan struct{}, 1),
+	Streams: ProtocolStream{},
+}

daemons/node/common/common_heartbeat.go

@@ -0,0 +1,255 @@
+package common
+
+import (
+	"context"
+	"encoding/json"
+	"io"
+	"time"
+
+	"github.com/libp2p/go-libp2p/core/host"
+	"github.com/libp2p/go-libp2p/core/network"
+	pp "github.com/libp2p/go-libp2p/core/peer"
+
+	oclib "cloud.o-forge.io/core/oc-lib"
+)
+
+type Heartbeat struct {
+	Name           string   `json:"name"`
+	Stream         *Stream  `json:"stream"`
+	DID            string   `json:"did"`
+	PeerID         string   `json:"peer_id"`
+	Timestamp      int64    `json:"timestamp"`
+	IndexersBinded []string `json:"indexers_binded"`
+	Score          float64
+	// Record carries a fresh signed PeerRecord (JSON) so the receiving indexer
+	// can republish it to the DHT without an extra round-trip.
+	// Only set by nodes (not indexers heartbeating other indexers).
+	Record json.RawMessage `json:"record,omitempty"`
+	// Need is how many more indexers this node wants (MaxIndexer - current pool size).
+	// The receiving indexer uses this to know how many suggestions to return.
+	// 0 means the pool is full — no suggestions needed unless SuggestMigrate.
+	Need int `json:"need,omitempty"`
+	// Challenges is a list of PeerIDs the node asks the indexer to spot-check.
+	// Always includes the node's own PeerID (ground truth) + up to 2 additional
+	// known peers. Nil means no challenge this tick.
+	Challenges []string `json:"challenges,omitempty"`
+	// ChallengeDID asks the indexer to retrieve this DID from the DHT (every 5th batch).
+	ChallengeDID string `json:"challenge_did,omitempty"`
+	// Referent marks this indexer as the node's designated search referent.
+	// Only one indexer per node receives Referent=true at a time (the best-scored one).
+	// The indexer stores the node in its referencedNodes for distributed search.
+	Referent bool `json:"referent,omitempty"`
+}
+
+// SearchPeerRequest is sent by a node to an indexer via ProtocolSearchPeer.
+// The indexer broadcasts it on the GossipSub search mesh and streams results back.
+type SearchPeerRequest struct {
+	QueryID string `json:"query_id"`
+	// At least one of PeerID, DID, Name must be set.
+	PeerID string `json:"peer_id,omitempty"`
+	DID    string `json:"did,omitempty"`
+	Name   string `json:"name,omitempty"`
+}
+
+// SearchQuery is broadcast on TopicSearchPeer by the receiving indexer.
+// EmitterID is the indexer's own PeerID — responding indexers open a
+// ProtocolSearchPeerResponse stream back to it.
+type SearchQuery struct {
+	QueryID   string `json:"query_id"`
+	PeerID    string `json:"peer_id,omitempty"`
+	DID       string `json:"did,omitempty"`
+	Name      string `json:"name,omitempty"`
+	EmitterID string `json:"emitter_id"`
+}
+
+// SearchPeerResult is sent by a responding indexer to the emitting indexer
+// via ProtocolSearchPeerResponse, and forwarded by the emitting indexer to
+// the node on the open ProtocolSearchPeer stream.
+type SearchPeerResult struct {
+	QueryID string      `json:"query_id"`
+	Records []SearchHit `json:"records"`
+}
+
+// SearchHit is a single peer found during distributed search.
+type SearchHit struct {
+	PeerID string `json:"peer_id"`
+	DID    string `json:"did"`
+	Name   string `json:"name"`
+}
+
+// ChallengeEntry is the indexer's raw answer for one challenged peer.
+type ChallengeEntry struct {
+	PeerID   string    `json:"peer_id"`
+	Found    bool      `json:"found"`
+	LastSeen time.Time `json:"last_seen,omitempty"` // zero if not found
+}
+
+// HeartbeatResponse carries raw metrics only — no pre-cooked score.
+type HeartbeatResponse struct {
+	FillRate   float64          `json:"fill_rate"`
+	PeerCount  int              `json:"peer_count"`
+	MaxNodes   int              `json:"max_nodes"` // capacity — lets node cross-check fillRate
+	BornAt     time.Time        `json:"born_at"`
+	Challenges []ChallengeEntry `json:"challenges,omitempty"`
+	// DHTFound / DHTPayload: response to a ChallengeDID request.
+	DHTFound   bool            `json:"dht_found,omitempty"`
+	DHTPayload json.RawMessage `json:"dht_payload,omitempty"`
+	// Witnesses: random sample of connected nodes so the querying node can cross-check.
+	Witnesses []pp.AddrInfo `json:"witnesses,omitempty"`
+	// Suggestions: better indexers this indexer knows about via its DHT cache.
+	// The node should open heartbeat connections to these (they become StaticIndexers).
+	Suggestions []pp.AddrInfo `json:"suggestions,omitempty"`
+	// SuggestMigrate: set when this indexer is overloaded (fill rate > threshold)
+	// and is actively trying to hand the node off to the Suggestions list.
+	// Seeds: node de-stickies this indexer once it has MinIndexer non-seed alternatives.
+	// Non-seeds: node removes this indexer immediately if it has enough alternatives.
+	SuggestMigrate bool `json:"suggest_migrate,omitempty"`
+}
+
+// ComputeIndexerScore computes a composite quality score [0, 100] for the connecting peer.
+//   - uptimeRatio:   fraction of tracked lifetime online (gap-aware) — peer reliability
+//   - bpms:         bandwidth normalized to MaxExpectedMbps — link capacity
+//   - diversity:    indexer's own /24 subnet diversity — network topology quality
+//   - latencyScore: 1 - RTT/maxRoundTrip — link responsiveness
+//   - fillRate:     fraction of indexer slots used (0=empty, 1=full) — collective trust signal:
+//     a fuller indexer has been chosen and retained by many peers, which is evidence of quality.
+func (hb *Heartbeat) ComputeIndexerScore(uptimeRatio float64, bpms float64, diversity float64, latencyScore float64, fillRate float64) {
+	hb.Score = ((0.20 * uptimeRatio) +
+		(0.20 * bpms) +
+		(0.20 * diversity) +
+		(0.15 * latencyScore) +
+		(0.25 * fillRate)) * 100
+}
+
+type HeartbeatInfo []struct {
+	Info []byte `json:"info"`
+}
+
+// WitnessRequest is sent by a node to a peer to ask its view of a given indexer.
+type WitnessRequest struct {
+	IndexerPeerID string `json:"indexer_peer_id"`
+}
+
+// WitnessReport is returned by a peer in response to a WitnessRequest.
+type WitnessReport struct {
+	Seen     bool      `json:"seen"`
+	BornAt   time.Time `json:"born_at,omitempty"`
+	FillRate float64   `json:"fill_rate,omitempty"`
+	Score    float64   `json:"score,omitempty"`
+}
+
+// HandleBandwidthProbe echoes back everything written on the stream, then closes.
+// It is registered by all participants so the measuring side (the heartbeat receiver)
+// can open a dedicated probe stream and read the round-trip latency + throughput.
+func HandleBandwidthProbe(s network.Stream) {
+	defer s.Close()
+	s.SetDeadline(time.Now().Add(10 * time.Second))
+	io.Copy(s, s) // echo every byte back to the sender
+}
+
+// HandleWitnessQuery answers a witness query: the caller wants to know
+// what this node thinks of a given indexer (identified by its PeerID).
+func HandleWitnessQuery(h host.Host, s network.Stream) {
+	defer s.Close()
+	s.SetDeadline(time.Now().Add(5 * time.Second))
+	var req WitnessRequest
+	if err := json.NewDecoder(s).Decode(&req); err != nil {
+		return
+	}
+	report := WitnessReport{}
+	for _, ai := range Indexers.GetAddrs() {
+		if ai.Info == nil || ai.Info.ID.String() != req.IndexerPeerID {
+			continue
+		}
+		if score := Indexers.GetScore(addrKey(*ai.Info)); score != nil {
+			report.Seen = true
+			report.BornAt = score.LastBornAt
+			report.FillRate = score.LastFillRate
+			report.Score = score.Score
+		}
+		break
+	}
+	json.NewEncoder(s).Encode(report)
+}
+
+// SupportsHeartbeat probes pid with a short-lived stream to verify it has
+// a ProtocolHeartbeat handler (i.e. it is an indexer, not a plain node).
+// Only protocol negotiation is performed — no data is sent.
+// Returns false on any error, including "protocol not supported".
+func SupportsHeartbeat(h host.Host, pid pp.ID) bool {
+	ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
+	defer cancel()
+	s, err := h.NewStream(ctx, pid, ProtocolHeartbeat)
+	if err != nil {
+		return false
+	}
+	s.Reset()
+	return true
+}
+
+// queryWitnesses contacts each witness in parallel, collects their view of the
+// indexer, and updates score.witnessChecked / score.witnessConsistent.
+// Called in a goroutine — must not hold any lock.
+func queryWitnesses(h host.Host, indexerPeerID string, indexerBornAt time.Time, indexerFillRate float64, witnesses []pp.AddrInfo, score *Score) {
+	logger := oclib.GetLogger()
+	type result struct{ consistent bool }
+	results := make(chan result, len(witnesses))
+
+	for _, ai := range witnesses {
+		if ai.ID == h.ID() {
+			// Never query ourselves — skip and count as inconclusive.
+			results <- result{}
+			continue
+		}
+		go func(ai pp.AddrInfo) {
+			ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+			defer cancel()
+			s, err := h.NewStream(ctx, ai.ID, ProtocolWitnessQuery)
+			if err != nil {
+				results <- result{}
+				return
+			}
+			defer s.Close()
+			s.SetDeadline(time.Now().Add(5 * time.Second))
+			if err := json.NewEncoder(s).Encode(WitnessRequest{IndexerPeerID: indexerPeerID}); err != nil {
+				results <- result{}
+				return
+			}
+			var rep WitnessReport
+			if err := json.NewDecoder(s).Decode(&rep); err != nil || !rep.Seen {
+				results <- result{}
+				return
+			}
+			// BornAt must be identical (fixed timestamp).
+			bornAtOK := !rep.BornAt.IsZero() && rep.BornAt.Equal(indexerBornAt)
+			// FillRate coherent within ±25% (it fluctuates normally).
+			diff := rep.FillRate - indexerFillRate
+			if diff < 0 {
+				diff = -diff
+			}
+			fillOK := diff < 0.25
+			consistent := bornAtOK && fillOK
+			logger.Debug().
+				Str("witness", ai.ID.String()).
+				Bool("bornAt_ok", bornAtOK).
+				Bool("fill_ok", fillOK).
+				Msg("witness report")
+			results <- result{consistent: consistent}
+		}(ai)
+	}
+
+	checked, consistent := 0, 0
+	for range witnesses {
+		r := <-results
+		checked++
+		if r.consistent {
+			consistent++
+		}
+	}
+
+	if checked == 0 {
+		return
+	}
+	score.witnessChecked += checked
+	score.witnessConsistent += consistent
+}

daemons/node/common/common_indexer_hb.go

@@ -0,0 +1,589 @@
+package common
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"math/rand"
+	"strings"
+	"sync/atomic"
+	"time"
+
+	"oc-discovery/conf"
+
+	oclib "cloud.o-forge.io/core/oc-lib"
+
+	"github.com/libp2p/go-libp2p/core/host"
+	"github.com/libp2p/go-libp2p/core/network"
+	pp "github.com/libp2p/go-libp2p/core/peer"
+	"github.com/libp2p/go-libp2p/core/protocol"
+)
+
+var TimeWatcher time.Time
+
+// retryRunning guards against launching multiple retryUntilSeedResponds goroutines.
+var retryRunning atomic.Bool
+
+func ConnectToIndexers(h host.Host, minIndexer int, maxIndexer int, recordFn ...func() json.RawMessage) error {
+	TimeWatcher = time.Now().UTC()
+	logger := oclib.GetLogger()
+
+	// Bootstrap from IndexerAddresses seed set.
+	addresses := strings.Split(conf.GetConfig().IndexerAddresses, ",")
+	if len(addresses) > maxIndexer {
+		addresses = addresses[0:maxIndexer]
+	}
+	for _, indexerAddr := range addresses {
+		indexerAddr = strings.TrimSpace(indexerAddr)
+		if indexerAddr == "" {
+			continue
+		}
+		ad, err := pp.AddrInfoFromString(indexerAddr)
+		if err != nil {
+			logger.Err(err)
+			continue
+		}
+		key := ad.ID.String()
+		Indexers.SetAddr(key, ad)
+		// Pre-create score entry with IsSeed=true so the sticky flag is set before
+		// the first heartbeat tick (lazy creation in doTick would lose the flag).
+		if !Indexers.ExistsScore(key) {
+			Indexers.SetScore(key, &Score{
+				FirstContacted: time.Now().UTC(),
+				UptimeTracker:  &UptimeTracker{FirstSeen: time.Now().UTC()},
+				nextChallenge:  rand.Intn(10) + 1,
+				IsSeed:         true,
+			})
+		}
+	}
+	seeds := Indexers.GetAddrs()
+	indexerCount := len(seeds)
+
+	if indexerCount < minIndexer {
+		return fmt.Errorf("you run a node without indexers... your gonna be isolated.")
+	}
+
+	// Start long-lived heartbeat to seed indexers. The single goroutine follows
+	// all subsequent StaticIndexers changes.
+	SendHeartbeat(context.Background(), ProtocolHeartbeat, conf.GetConfig().Name,
+		h, Indexers, 20*time.Second, maxIndexer, recordFn...)
+
+	// Watch for inbound connections: if a peer connects to us and our pool has
+	// room, probe it first to confirm it supports ProtocolHeartbeat (i.e. it is
+	// an indexer). Plain nodes don't register the handler — the negotiation fails
+	// instantly so we never pollute the pool with non-indexer peers.
+	h.Network().Notify(&network.NotifyBundle{
+		ConnectedF: func(n network.Network, c network.Conn) {
+			if c.Stat().Direction != network.DirInbound {
+				return
+			}
+			if len(Indexers.GetAddrs()) >= maxIndexer {
+				return
+			}
+			peerID := c.RemotePeer()
+			if Indexers.ExistsAddr(peerID.String()) {
+				return
+			}
+			// Probe in a goroutine — ConnectedF must not block.
+			go func(pid pp.ID) {
+				if !SupportsHeartbeat(h, pid) {
+					return // plain node, skip
+				}
+				if len(Indexers.GetAddrs()) >= maxIndexer {
+					return
+				}
+				if Indexers.ExistsAddr(pid.String()) {
+					return
+				}
+				addrs := h.Peerstore().Addrs(pid)
+				if len(addrs) == 0 {
+					return
+				}
+				ai := FilterLoopbackAddrs(pp.AddrInfo{ID: pid, Addrs: addrs})
+				if len(ai.Addrs) == 0 {
+					return
+				}
+				adCopy := ai
+				Indexers.SetAddr(pid.String(), &adCopy)
+				Indexers.NudgeIt()
+				log := oclib.GetLogger()
+				log.Info().Str("peer", pid.String()).
+					Msg("[pool] inbound indexer peer added as candidate")
+			}(peerID)
+		},
+	})
+
+	// Proactive DHT upgrade: once seeds are connected and the DHT routing table
+	// is warm, discover better indexers and add them to the pool alongside the seeds.
+	// Seeds stay as guaranteed anchors; scoring will demote poor performers over time.
+	go func(seeds []Entry) {
+		// Let seed connections establish and the DHT routing table warm up.
+		time.Sleep(5 * time.Second)
+		// For pure nodes (no IndexerService), spin up a lightweight DHT client.
+		if discoveryDHT == nil {
+			if len(seeds) == 0 {
+				return
+			}
+			initNodeDHT(h, seeds)
+		}
+		if discoveryDHT == nil {
+			return
+		}
+		current := len(Indexers.GetAddrs())
+		need := maxIndexer - current
+		if need <= 0 {
+			need = maxIndexer / 2 // diversify even when pool is already at capacity
+		}
+		logger.Info().Int("need", need).Msg("[dht] proactive indexer discovery from DHT")
+		replenishIndexersFromDHT(h, need)
+	}(seeds)
+
+	return nil
+}
+
+// reconnectToSeeds re-adds the configured seed indexers to StaticIndexers as
+// sticky fallback entries. Called when the pool drops to zero so the node
+// never becomes completely isolated.
+func reconnectToSeeds() {
+	logger := oclib.GetLogger()
+	logger.Warn().Msg("[pool] all indexers lost, reconnecting to configured seeds")
+	addresses := strings.Split(conf.GetConfig().IndexerAddresses, ",")
+	for _, addrStr := range addresses {
+		addrStr = strings.TrimSpace(addrStr)
+		if addrStr == "" {
+			continue
+		}
+		ad, err := pp.AddrInfoFromString(addrStr)
+		if err != nil {
+			continue
+		}
+		key := ad.ID.String()
+		Indexers.SetAddr(key, ad)
+		if score := Indexers.GetScore(key); score == nil {
+			Indexers.SetScore(key, &Score{
+				FirstContacted: time.Now().UTC(),
+				UptimeTracker:  &UptimeTracker{FirstSeen: time.Now().UTC()},
+				nextChallenge:  rand.Intn(10) + 1,
+				IsSeed:         true,
+			})
+		} else {
+			// Restore sticky flag so the seed is not immediately re-ejected.
+			score.IsSeed = true
+		}
+	}
+}
+
+// retryUntilSeedResponds loops with exponential backoff until at least one
+// configured seed is reachable again. Once seeds are back in the pool it
+// nudges the heartbeat loop and lets the normal DHT upgrade path take over.
+// Should be called in a goroutine — it blocks until the situation resolves.
+// Panics immediately if no seeds are configured: there is nothing to wait for.
+func retryUntilSeedResponds() {
+	if !retryRunning.CompareAndSwap(false, true) {
+		return // another goroutine is already running the retry loop
+	}
+	defer retryRunning.Store(false)
+
+	logger := oclib.GetLogger()
+	rawAddresses := strings.TrimSpace(conf.GetConfig().IndexerAddresses)
+	if rawAddresses == "" {
+		// No seeds configured: rely on the inbound-connection notifee to fill
+		// the pool. Just wait patiently — the loop below will return as soon
+		// as any peer connects and NudgeIt() is called.
+		logger.Warn().Msg("[pool] pool empty and no seeds configured — waiting for inbound indexer")
+	}
+	backoff := 10 * time.Second
+	const maxBackoff = 5 * time.Minute
+	for {
+		time.Sleep(backoff)
+		if backoff < maxBackoff {
+			backoff *= 2
+		}
+		// Check whether someone else already refilled the pool.
+		if len(Indexers.GetAddrs()) > 0 {
+			logger.Info().Msg("[pool] pool refilled externally, stopping seed retry")
+			return
+		}
+		logger.Warn().Dur("backoff", backoff).Msg("[pool] still isolated, retrying seeds")
+		reconnectToSeeds()
+		if len(Indexers.GetAddrs()) > 0 {
+			Indexers.NudgeIt()
+			// Re-bootstrap DHT now that we have at least one connection candidate.
+			if discoveryDHT != nil {
+				ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
+				discoveryDHT.Bootstrap(ctx) //nolint:errcheck
+				cancel()
+			}
+			return
+		}
+	}
+}
+
+// ensureScore returns the Score for addr, creating it if absent.
+func ensureScore(d *Directory, addr string) *Score {
+	if !d.ExistsScore(addr) {
+		d.SetScore(addr, &Score{
+			FirstContacted: time.Now().UTC(),
+			UptimeTracker:  &UptimeTracker{FirstSeen: time.Now().UTC()},
+			nextChallenge:  rand.Intn(10) + 1,
+		})
+	}
+	return d.GetScore(addr)
+}
+
+// evictPeer removes addr from directory atomically and returns a snapshot of
+// remaining AddrInfos (for consensus voter selection).
+func evictPeer(d *Directory, addr string, id pp.ID, proto protocol.ID) []pp.AddrInfo {
+	d.Streams.Delete(proto, &id)
+	d.DeleteAddr(addr)
+	voters := make([]pp.AddrInfo, 0, len(d.Addrs))
+	for _, ai := range d.GetAddrs() {
+		if ai.Info != nil {
+			voters = append(voters, *ai.Info)
+		}
+	}
+	d.DeleteScore(addr)
+	return voters
+}
+
+// handleSuggestions adds unknown suggested indexers to the directory.
+func handleSuggestions(d *Directory, from string, suggestions []pp.AddrInfo) {
+	added := 0
+	for _, sug := range suggestions {
+		key := addrKey(sug)
+		if !d.ExistsAddr(key) {
+			cpy := sug
+			d.SetAddr(key, &cpy)
+			added++
+		}
+	}
+	if added > 0 {
+		logger := oclib.GetLogger()
+		logger.Info().Int("added", added).Str("from", from).
+			Msg("added suggested indexers from heartbeat response")
+		d.NudgeIt()
+	}
+}
+
+// SendHeartbeat starts a goroutine that sends periodic heartbeats to peers.
+// recordFn, when provided, is called on each tick and its output is embedded in
+// the heartbeat as a fresh signed PeerRecord so the receiving indexer can
+// republish it to the DHT without an extra round-trip.
+// Pass no recordFn (or nil) for indexer→indexer / native heartbeats.
+func SendHeartbeat(ctx context.Context, proto protocol.ID, name string, h host.Host, directory *Directory, interval time.Duration, maxPool int, recordFn ...func() json.RawMessage) {
+	logger := oclib.GetLogger()
+	isIndexerHB := directory == Indexers
+	var recFn func() json.RawMessage
+	if len(recordFn) > 0 {
+		recFn = recordFn[0]
+	}
+	go func() {
+		logger.Info().Str("proto", string(proto)).Int("peers", len(directory.Addrs)).Msg("heartbeat started")
+		t := time.NewTicker(interval)
+		defer t.Stop()
+
+		// peerEntry pairs addr key with AddrInfo so doTick can update score maps directly.
+		type peerEntry struct {
+			addr string
+			ai   *pp.AddrInfo
+		}
+
+		doTick := func() {
+			addrs := directory.GetAddrsStr()
+			need := maxPool - len(addrs)
+			if need < 0 {
+				need = 0
+			}
+			baseHB := Heartbeat{
+				Name:           name,
+				PeerID:         h.ID().String(),
+				Timestamp:      time.Now().UTC().Unix(),
+				IndexersBinded: addrs,
+				Need:           need,
+			}
+			if recFn != nil {
+				baseHB.Record = recFn()
+			}
+			// Determine the referent indexer: highest-scored one receives Referent=true
+			// so it stores us in its referencedNodes for distributed search.
+			var referentAddr string
+			if isIndexerHB {
+				var bestScore float64 = -1
+				for _, ai2 := range directory.GetAddrs() {
+					if s := directory.GetScore(ai2.Addr); s != nil && s.Score > bestScore {
+						bestScore = s.Score
+						referentAddr = ai2.Addr
+					}
+				}
+			}
+
+			for _, ai := range directory.GetAddrs() {
+				// Build per-peer heartbeat copy so challenge injection is peer-specific.
+				hb := baseHB
+				if isIndexerHB && referentAddr != "" && ai.Addr == referentAddr {
+					hb.Referent = true
+				}
+				// Ensure an IndexerScore entry exists for this peer.
+				var score *Score
+				if isIndexerHB {
+					score = ensureScore(directory, ai.Addr)
+
+					// Inject challenge batch if due (random 1-10 HBs between batches).
+					score.hbCount++
+					if score.hbCount >= score.nextChallenge {
+						// Ground truth: node's own PeerID — indexer MUST have us.
+						challenges := []string{h.ID().String()}
+						// Add up to 2 more known peers (other indexers) for richer data.
+						// Use the already-snapshotted entries to avoid re-locking.
+						for _, ai2 := range directory.GetAddrs() {
+							if ai2.Addr != ai.Addr && ai2.Info != nil {
+								challenges = append(challenges, ai2.Info.ID.String())
+								if len(challenges) >= 3 {
+									break
+								}
+							}
+						}
+						hb.Challenges = challenges
+						score.hbCount = 0
+						score.nextChallenge = rand.Intn(10) + 1
+						score.challengeTotal++ // count own-PeerID challenge (ground truth)
+						score.dhtBatchCounter++
+						// DHT challenge every 5th batch: ask indexer to retrieve our own DID.
+						if score.dhtBatchCounter%5 == 0 {
+							var selfDID string
+							if len(baseHB.Record) > 0 {
+								var partial struct {
+									DID string `json:"did"`
+								}
+								if json.Unmarshal(baseHB.Record, &partial) == nil {
+									selfDID = partial.DID
+								}
+							}
+							if selfDID != "" {
+								hb.ChallengeDID = selfDID
+							}
+						}
+					}
+				}
+
+				resp, rtt, err := sendHeartbeat(ctx, h, proto, ai.Info, hb, directory.Streams, interval*time.Second)
+				if err != nil { // Heartbeat fails
+					HeartbeatFailure(h, proto, directory, ai.Addr, ai.Info, isIndexerHB, maxPool, err)
+					continue
+				}
+
+				// Update IndexerScore — uptime recorded on any successful send,
+				// even if the indexer does not support bidirectional heartbeat (Fix 1).
+				if isIndexerHB && score != nil {
+					score.UptimeTracker.RecordHeartbeat()
+					score.UptimeTracker.ConsecutiveFails = 0 // reset on success
+
+					maxRTT := BaseRoundTrip * 10
+					latencyScore := 1.0 - float64(rtt)/float64(maxRTT)
+					if latencyScore < 0 {
+						latencyScore = 0
+					}
+					if latencyScore > 1 {
+						latencyScore = 1
+					}
+
+					// Update fill / challenge fields only when the indexer responded.
+					if resp != nil {
+						// BornAt stability check.
+						if score.LastBornAt.IsZero() {
+							score.LastBornAt = resp.BornAt
+						} else if !resp.BornAt.IsZero() && !resp.BornAt.Equal(score.LastBornAt) {
+							score.bornAtChanges++
+							score.LastBornAt = resp.BornAt
+							logger.Warn().Str("peer", ai.Info.ID.String()).
+								Int("changes", score.bornAtChanges).
+								Msg("indexer BornAt changed — possible restart or impersonation")
+						}
+						score.LastFillRate = resp.FillRate
+
+						// Fill rate consistency: cross-check peerCount/maxNodes vs reported fillRate.
+						if resp.MaxNodes > 0 {
+							expected := float64(resp.PeerCount) / float64(resp.MaxNodes)
+							diff := expected - resp.FillRate
+							if diff < 0 {
+								diff = -diff
+							}
+							score.fillChecked++
+							if diff < 0.1 {
+								score.fillConsistent++
+							}
+						}
+
+						// Validate challenge responses. Only own-PeerID counts as ground truth.
+						if len(hb.Challenges) > 0 && len(resp.Challenges) > 0 {
+							ownID := h.ID().String()
+							for _, ce := range resp.Challenges {
+								if ce.PeerID != ownID {
+									continue // informational only
+								}
+								recentEnough := !ce.LastSeen.IsZero() &&
+									time.Since(ce.LastSeen) < 2*RecommendedHeartbeatInterval
+								if ce.Found && recentEnough {
+									score.challengeCorrect++
+								}
+								logger.Info().Str("peer", ai.Info.ID.String()).
+									Bool("found", ce.Found).
+									Bool("recent", recentEnough).
+									Msg("own-PeerID challenge result")
+								break
+							}
+						}
+
+						// DHT challenge result.
+						if hb.ChallengeDID != "" {
+							score.dhtChecked++
+							if resp.DHTFound {
+								score.dhtSuccess++
+							}
+						}
+
+						// Launch witness cross-check asynchronously (must not hold lock).
+						if len(resp.Witnesses) > 0 {
+							go queryWitnesses(h, ai.Info.ID.String(), resp.BornAt, resp.FillRate, resp.Witnesses, score)
+						} else if resp.MaxNodes > 0 {
+							// No witnesses offered. Valid if indexer only has us (PeerCount==1).
+							// Cross-check: FillRate should equal 1/MaxNodes within ±10%.
+							expected := 1.0 / float64(resp.MaxNodes)
+							diff := resp.FillRate - expected
+							if diff < 0 {
+								diff = -diff
+							}
+							score.witnessChecked++
+							if resp.PeerCount == 1 && diff < 0.1 {
+								score.witnessConsistent++
+							}
+						}
+					}
+
+					score.Score = score.ComputeNodeSideScore(latencyScore)
+					age := score.UptimeTracker.Uptime()
+					minScore := dynamicMinScore(age)
+					// Fix 4: grace period — at least 2 full heartbeat cycles before ejecting.
+					isSeed := score.IsSeed
+					// Seeds are sticky: never evicted by score alone (SuggestMigrate handles it).
+					// Never eject the last indexer by score alone — we would lose all connectivity.
+					belowThreshold := score.Score < minScore &&
+						score.UptimeTracker.TotalOnline >= 2*RecommendedHeartbeatInterval &&
+						!isSeed &&
+						len(directory.Addrs) > 1
+
+					if belowThreshold {
+						logger.Info().Str("peer", ai.Info.ID.String()).
+							Float64("score", score.Score).Float64("min", minScore).
+							Msg("indexer score below threshold, removing from pool")
+						voters := evictPeer(directory, ai.Addr, ai.Info.ID, proto)
+						need := max(maxPool-len(voters), 1)
+						if len(voters) > 0 {
+							go TriggerConsensus(h, voters, need)
+						} else {
+							go replenishIndexersFromDHT(h, need)
+						}
+					}
+
+					// Accept suggestions from this indexer — add unknown ones to the directory.
+					if resp != nil && len(resp.Suggestions) > 0 {
+						handleSuggestions(directory, ai.Info.ID.String(), resp.Suggestions)
+					}
+
+					// Handle SuggestMigrate: indexer is overloaded and wants us to move.
+					if resp != nil && resp.SuggestMigrate && isIndexerHB {
+						nonSeedCount := 0
+						for _, sc := range directory.GetScores() {
+							if !sc.IsSeed {
+								nonSeedCount++
+							}
+						}
+						if nonSeedCount >= conf.GetConfig().MinIndexer {
+							if isSeed {
+								// Seed has offloaded us: clear sticky flag, score eviction takes over.
+								score.IsSeed = false
+								logger.Info().Str("peer", ai.Info.ID.String()).
+									Msg("seed discharged via SuggestMigrate, de-stickied")
+							} else {
+								evictPeer(directory, ai.Addr, ai.Info.ID, proto)
+								logger.Info().Str("peer", ai.Info.ID.String()).Msg("accepted migration from overloaded indexer")
+							}
+						}
+					}
+				}
+			}
+		}
+
+		for {
+			select {
+			case <-t.C:
+				doTick()
+			case <-directory.Nudge:
+				if isIndexerHB {
+					logger.Info().Msg("nudge received, heartbeating new indexers immediately")
+					doTick()
+				}
+			case <-ctx.Done():
+				return
+			}
+		}
+	}()
+}
+
+func HeartbeatFailure(h host.Host, proto protocol.ID, directory *Directory,
+	addr string, info *pp.AddrInfo, isIndexerHB bool, maxPool int, err error) {
+	logger := oclib.GetLogger()
+	logger.Err(err)
+	// Seeds are never evicted on heartbeat failure.
+	// Keeping them in the pool lets the regular 60-second ticker retry them
+	// at a natural cadence — no reconnect storm, no libp2p dial-backoff accumulation.
+	// A seed will self-heal once it comes back; DHT and inbound peers fill the gap.
+	if isIndexerHB {
+		if score := directory.GetScore(addr); score != nil {
+			if score.IsSeed {
+				logger.Warn().Str("peer", info.ID.String()).
+					Msg("[pool] seed heartbeat failed — keeping in pool, ticker will retry " + err.Error())
+				return
+			}
+			// Indirect probing via other alive indexers:
+			// If other indexers in the pool are still responding, they act as implicit
+			// third-party witnesses confirming our connectivity is fine — the failed
+			// indexer is genuinely dead, evict immediately.
+			// If this is the last indexer, there is no third party. Retry up to 3 times
+			// (consecutive failures tracked in UptimeTracker) before declaring it dead.
+			if len(directory.GetAddrs()) <= 1 {
+				score.UptimeTracker.ConsecutiveFails++
+				if score.UptimeTracker.ConsecutiveFails < 3 {
+					logger.Warn().Str("peer", info.ID.String()).
+						Int("attempt", score.UptimeTracker.ConsecutiveFails).
+						Msg("[indirect] last indexer failed, retrying before eviction")
+					return
+				}
+				logger.Warn().Str("peer", info.ID.String()).
+					Msg("[indirect] last indexer failed 3 times consecutively, evicting")
+			}
+		}
+	}
+
+	logger.Info().Str("peer", info.ID.String()).Str("proto", string(proto)).
+		Msg("heartbeat failed, removing peer from pool : " + err.Error())
+	consensusVoters := evictPeer(directory, addr, info.ID, proto)
+	if isIndexerHB {
+		need := maxPool - len(consensusVoters)
+		if need < 1 {
+			need = 1
+		}
+		logger.Info().Int("remaining", len(consensusVoters)).Int("need", need).Msg("pool state after removal")
+		poolSize := len(directory.GetAddrs())
+		if poolSize == 0 {
+			// Pool is truly empty (no seeds configured or no seeds in pool).
+			// Start the backoff retry loop — it will re-add seeds and nudge
+			// only once a seed actually responds.
+			go retryUntilSeedResponds()
+		} else if len(consensusVoters) > 0 {
+			go TriggerConsensus(h, consensusVoters, need)
+		} else {
+			go replenishIndexersFromDHT(h, need)
+		}
+	}
+}

daemons/node/common/common_pubsub.go

@@ -0,0 +1,200 @@
+package common
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"sync"
+	"time"
+
+	"cloud.o-forge.io/core/oc-lib/models/peer"
+	"cloud.o-forge.io/core/oc-lib/tools"
+	pubsub "github.com/libp2p/go-libp2p-pubsub"
+	"github.com/libp2p/go-libp2p/core/host"
+	pp "github.com/libp2p/go-libp2p/core/peer"
+)
+
+type Event struct {
+	Type string `json:"type"`
+	From string `json:"from"` // peerID
+
+	User string
+
+	DataType  int64  `json:"datatype"`
+	Timestamp int64  `json:"ts"`
+	Payload   []byte `json:"payload"`
+	Signature []byte `json:"sig"`
+}
+
+func NewEvent(name string, from string, dt *tools.DataType, user string, payload []byte) *Event {
+	priv, err := tools.LoadKeyFromFilePrivate() // your node private key
+	if err != nil {
+		return nil
+	}
+	evt := &Event{
+		Type:      name,
+		From:      from,
+		User:      user,
+		Timestamp: time.Now().UTC().Unix(),
+		Payload:   payload,
+	}
+	if dt != nil {
+		evt.DataType = int64(dt.EnumIndex())
+	} else {
+		evt.DataType = -1
+	}
+
+	body, _ := json.Marshal(evt)
+	sig, _ := priv.Sign(body)
+	evt.Signature = sig
+	return evt
+}
+
+func (e *Event) RawEvent() *Event {
+	return &Event{
+		Type:      e.Type,
+		From:      e.From,
+		User:      e.User,
+		DataType:  e.DataType,
+		Timestamp: e.Timestamp,
+		Payload:   e.Payload,
+	}
+}
+
+func (e *Event) toRawByte() ([]byte, error) {
+	return json.Marshal(e.RawEvent())
+}
+
+func (event *Event) Verify(p *peer.Peer) error {
+	if p == nil {
+		return errors.New("no peer found")
+	}
+	if p.Relation == peer.BLACKLIST { // if peer is blacklisted... quit...
+		return errors.New("peer is blacklisted")
+	}
+	return event.VerifySignature(p.PublicKey)
+}
+
+func (event *Event) VerifySignature(pk string) error {
+	pubKey, err := PubKeyFromString(pk) // extract pubkey from pubkey str
+	if err != nil {
+		return errors.New("pubkey is malformed")
+	}
+	data, err := event.toRawByte()
+	if err != nil {
+		return err
+	} // extract byte from raw event excluding signature.
+	if ok, _ := pubKey.Verify(data, event.Signature); !ok { // then verify if pubkey sign this message...
+		return errors.New("check signature failed")
+	}
+	return nil
+}
+
+type TopicNodeActivityPub struct {
+	NodeActivity int    `json:"node_activity"`
+	Disposer     string `json:"disposer_address"`
+	Name         string `json:"name"`
+	DID          string `json:"did"` // real PEER ID
+	PeerID       string `json:"peer_id"`
+}
+
+type LongLivedPubSubService struct {
+	Host             host.Host
+	LongLivedPubSubs map[string]*pubsub.Topic
+	PubsubMu         sync.RWMutex
+}
+
+func NewLongLivedPubSubService(h host.Host) *LongLivedPubSubService {
+	return &LongLivedPubSubService{
+		Host:             h,
+		LongLivedPubSubs: map[string]*pubsub.Topic{},
+	}
+}
+
+func (s *LongLivedPubSubService) GetPubSub(topicName string) *pubsub.Topic {
+	s.PubsubMu.Lock()
+	defer s.PubsubMu.Unlock()
+	return s.LongLivedPubSubs[topicName]
+}
+
+func (s *LongLivedPubSubService) processEvent(
+	ctx context.Context,
+	p *peer.Peer,
+	event *Event,
+	topicName string, handler func(context.Context, string, *Event) error) error {
+	if err := event.Verify(p); err != nil {
+		return err
+	}
+	return handler(ctx, topicName, event)
+}
+
+const TopicPubSubSearch = "oc-node-search"
+
+func (s *LongLivedPubSubService) SubscribeToSearch(ps *pubsub.PubSub, f *func(context.Context, Event, string)) error {
+	ps.RegisterTopicValidator(TopicPubSubSearch, func(ctx context.Context, p pp.ID, m *pubsub.Message) bool {
+		return true
+	})
+	if topic, err := ps.Join(TopicPubSubSearch); err != nil {
+		return err
+	} else {
+		s.PubsubMu.Lock()
+		s.LongLivedPubSubs[TopicPubSubSearch] = topic
+		s.PubsubMu.Unlock()
+	}
+	if f != nil {
+		return SubscribeEvents(s, context.Background(), TopicPubSubSearch, -1, *f)
+	}
+	return nil
+}
+
+func SubscribeEvents[T interface{}](s *LongLivedPubSubService,
+	ctx context.Context, proto string, timeout int, f func(context.Context, T, string),
+) error {
+	if s.LongLivedPubSubs[proto] == nil {
+		return errors.New("no protocol subscribed in pubsub")
+	}
+	topic := s.LongLivedPubSubs[proto]
+	sub, err := topic.Subscribe() // then subscribe to it
+	if err != nil {
+		return err
+	}
+	// launch loop waiting for results.
+	go waitResults(s, ctx, sub, proto, timeout, f)
+
+	return nil
+}
+
+func waitResults[T interface{}](s *LongLivedPubSubService, ctx context.Context, sub *pubsub.Subscription, proto string, timeout int, f func(context.Context, T, string)) {
+	defer ctx.Done()
+	for {
+		s.PubsubMu.Lock()                     // check safely if cache is actually notified subscribed to topic
+		if s.LongLivedPubSubs[proto] == nil { // if not kill the loop.
+			s.PubsubMu.Unlock()
+			break
+		}
+		s.PubsubMu.Unlock()
+		// if still subscribed -> wait for new message
+		var cancel context.CancelFunc
+		if timeout != -1 {
+			ctx, cancel = context.WithTimeout(ctx, time.Duration(timeout)*time.Second)
+			defer cancel()
+		}
+		msg, err := sub.Next(ctx)
+		if err != nil {
+			if errors.Is(err, context.DeadlineExceeded) {
+				// timeout hit, no message before deadline kill subsciption.
+				s.PubsubMu.Lock()
+				delete(s.LongLivedPubSubs, proto)
+				s.PubsubMu.Unlock()
+				return
+			}
+			continue
+		}
+		var evt T
+		if err := json.Unmarshal(msg.Data, &evt); err != nil { // map to event
+			continue
+		}
+		f(ctx, evt, fmt.Sprintf("%v", proto))
+	}
+}

daemons/node/common/common_scoring.go

@@ -0,0 +1,183 @@
+package common
+
+import (
+	"context"
+	cr "crypto/rand"
+	"io"
+	"net"
+	"slices"
+	"time"
+
+	"github.com/libp2p/go-libp2p/core/host"
+	pp "github.com/libp2p/go-libp2p/core/peer"
+)
+
+const MaxExpectedMbps = 100.0
+const MinPayloadChallenge = 512
+const MaxPayloadChallenge = 2048
+const BaseRoundTrip = 400 * time.Millisecond
+
+type UptimeTracker struct {
+	FirstSeen        time.Time
+	LastSeen         time.Time
+	TotalOnline      time.Duration
+	ConsecutiveFails int // incremented on each heartbeat failure; reset to 0 on success
+}
+
+// RecordHeartbeat accumulates online time gap-aware: only counts the interval if
+// the gap since the last heartbeat is within 2× the recommended interval (i.e. no
+// extended outage). Call this each time a heartbeat is successfully processed.
+func (u *UptimeTracker) RecordHeartbeat() {
+	now := time.Now().UTC()
+	if !u.LastSeen.IsZero() {
+		gap := now.Sub(u.LastSeen)
+		if gap <= 2*RecommendedHeartbeatInterval {
+			u.TotalOnline += gap
+		}
+	}
+	u.LastSeen = now
+}
+
+func (u *UptimeTracker) Uptime() time.Duration {
+	return time.Since(u.FirstSeen)
+}
+
+// UptimeRatio returns the fraction of tracked lifetime during which the peer was
+// continuously online (gap ≤ 2×RecommendedHeartbeatInterval). Returns 0 before
+// the first heartbeat interval has elapsed.
+func (u *UptimeTracker) UptimeRatio() float64 {
+	total := time.Since(u.FirstSeen)
+	if total <= 0 {
+		return 0
+	}
+	ratio := float64(u.TotalOnline) / float64(total)
+	if ratio > 1 {
+		ratio = 1
+	}
+	return ratio
+}
+
+func (u *UptimeTracker) IsEligible(min time.Duration) bool {
+	return u.Uptime() >= min
+}
+
+// getBandwidthChallengeRate opens a dedicated ProtocolBandwidthProbe stream to
+// remotePeer, sends a random payload, reads the echo, and computes throughput
+// and a latency score. Returns (ok, bpms, latencyScore, error).
+// latencyScore is 1.0 when RTT is very fast and 0.0 when at or beyond maxRoundTrip.
+// Using a separate stream avoids mixing binary data on the JSON heartbeat stream
+// and ensures the echo handler is actually running on the remote side.
+func getBandwidthChallengeRate(h host.Host, remotePeer pp.ID, payloadSize int) (bool, float64, float64, error) {
+	payload := make([]byte, payloadSize)
+	if _, err := cr.Read(payload); err != nil {
+		return false, 0, 0, err
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+	s, err := h.NewStream(ctx, remotePeer, ProtocolBandwidthProbe)
+	if err != nil {
+		return false, 0, 0, err
+	}
+	defer s.Reset()
+	s.SetDeadline(time.Now().Add(10 * time.Second))
+	start := time.Now()
+	if _, err = s.Write(payload); err != nil {
+		return false, 0, 0, err
+	}
+	s.CloseWrite()
+	// Half-close the write side so the handler's io.Copy sees EOF and stops.
+	// Read the echo.
+	response := make([]byte, payloadSize)
+	if _, err = io.ReadFull(s, response); err != nil {
+		return false, 0, 0, err
+	}
+
+	duration := time.Since(start)
+	maxRoundTrip := BaseRoundTrip + (time.Duration(payloadSize) * (100 * time.Millisecond))
+	mbps := float64(payloadSize*8) / duration.Seconds() / 1e6
+
+	// latencyScore: 1.0 = instant, 0.0 = at maxRoundTrip or beyond.
+	latencyScore := 1.0 - float64(duration)/float64(maxRoundTrip)
+	if latencyScore < 0 {
+		latencyScore = 0
+	}
+	if latencyScore > 1 {
+		latencyScore = 1
+	}
+
+	if duration > maxRoundTrip || mbps < 5.0 {
+		return false, float64(mbps / MaxExpectedMbps), latencyScore, nil
+	}
+	return true, float64(mbps / MaxExpectedMbps), latencyScore, nil
+}
+
+func getDiversityRate(h host.Host, peers []string) float64 {
+	peers, _ = checkPeers(h, peers)
+	diverse := []string{}
+	for _, p := range peers {
+		ip, err := ExtractIP(p)
+		if err != nil {
+			continue
+		}
+		div := ip.Mask(net.CIDRMask(24, 32)).String()
+		if !slices.Contains(diverse, div) {
+			diverse = append(diverse, div)
+		}
+	}
+	if len(diverse) == 0 || len(peers) == 0 {
+		return 1
+	}
+	return float64(len(diverse)) / float64(len(peers))
+}
+
+// getOwnDiversityRate measures subnet /24 diversity of the indexer's own connected peers.
+// This evaluates the indexer's network position rather than the connecting node's topology.
+func getOwnDiversityRate(h host.Host) float64 {
+	diverse := map[string]struct{}{}
+	total := 0
+	for _, pid := range h.Network().Peers() {
+		for _, maddr := range h.Peerstore().Addrs(pid) {
+			total++
+			ip, err := ExtractIP(maddr.String())
+			if err != nil {
+				continue
+			}
+			diverse[ip.Mask(net.CIDRMask(24, 32)).String()] = struct{}{}
+		}
+	}
+	if total == 0 {
+		return 1
+	}
+	return float64(len(diverse)) / float64(total)
+}
+
+func checkPeers(h host.Host, peers []string) ([]string, []string) {
+	concretePeer := []string{}
+	ips := []string{}
+	for _, p := range peers {
+		ad, err := pp.AddrInfoFromString(p)
+		if err != nil {
+			continue
+		}
+		if PeerIsAlive(h, *ad) {
+			concretePeer = append(concretePeer, p)
+			if ip, err := ExtractIP(p); err == nil {
+				ips = append(ips, ip.Mask(net.CIDRMask(24, 32)).String())
+			}
+		}
+	}
+	return concretePeer, ips
+}
+
+// dynamicMinScore returns the minimum acceptable score for a peer, starting
+// permissive (20%) for brand-new peers and hardening linearly to 80% over 24h.
+// This prevents ejecting newcomers in fresh networks while filtering parasites.
+func dynamicMinScore(age time.Duration) float64 {
+	hours := age.Hours()
+	score := 20.0 + 60.0*(hours/24.0)
+	if score > 80.0 {
+		score = 80.0
+	}
+	return score
+}

daemons/node/common/common_service.go

@@ -0,0 +1,302 @@
+package common
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"math/rand"
+	"strings"
+	"sync"
+	"time"
+
+	oclib "cloud.o-forge.io/core/oc-lib"
+	"github.com/libp2p/go-libp2p/core/host"
+	"github.com/libp2p/go-libp2p/core/network"
+	pp "github.com/libp2p/go-libp2p/core/peer"
+	"github.com/libp2p/go-libp2p/core/protocol"
+)
+
+type LongLivedStreamRecordedService[T interface{}] struct {
+	*LongLivedPubSubService
+	StreamRecords map[protocol.ID]map[pp.ID]*StreamRecord[T]
+	StreamMU      sync.RWMutex
+	maxNodesConn  int
+	// AllowInbound, when set, is called once at stream open before any heartbeat
+	// is decoded.  remotePeer is the connecting peer; isNew is true when no
+	// StreamRecord exists yet (first-ever connection).  Return a non-nil error
+	// to immediately reset the stream and refuse the peer.
+	AllowInbound func(remotePeer pp.ID, isNew bool) error
+	// ValidateHeartbeat, when set, is called inside the heartbeat loop after
+	// each successful CheckHeartbeat decode.  Return a non-nil error to reset
+	// the stream and terminate the session.
+	ValidateHeartbeat func(remotePeer pp.ID) error
+	// AfterHeartbeat is called after each successful heartbeat with the full
+	// decoded Heartbeat so the hook can use the fresh embedded PeerRecord.
+	AfterHeartbeat func(hb *Heartbeat)
+	// AfterDelete is called after gc() evicts an expired peer, outside the lock.
+	// name and did may be empty if the HeartbeatStream had no metadata.
+	AfterDelete func(pid pp.ID, name string, did string)
+	// BuildHeartbeatResponse, when set, is called after each successfully decoded
+	// heartbeat to build the response sent back to the node.
+	// remotePeer is the peer that sent the heartbeat (used for offload routing).
+	// need is how many more indexers the node wants (from hb.Need).
+	// referent is true when the node designated this indexer as its search referent.
+	BuildHeartbeatResponse func(remotePeer pp.ID, need int, challenges []string, challengeDID string, referent bool) *HeartbeatResponse
+}
+
+func (ix *LongLivedStreamRecordedService[T]) MaxNodesConn() int {
+	return ix.maxNodesConn
+}
+
+func NewStreamRecordedService[T interface{}](h host.Host, maxNodesConn int) *LongLivedStreamRecordedService[T] {
+	service := &LongLivedStreamRecordedService[T]{
+		LongLivedPubSubService: NewLongLivedPubSubService(h),
+		StreamRecords:          map[protocol.ID]map[pp.ID]*StreamRecord[T]{},
+		maxNodesConn:           maxNodesConn,
+	}
+	go service.StartGC(30 * time.Second)
+	// Garbage collection is needed on every Map of Long-Lived Stream... it may be a top level redesigned
+	go service.Snapshot(1 * time.Hour)
+	return service
+}
+
+func (ix *LongLivedStreamRecordedService[T]) StartGC(interval time.Duration) {
+	go func() {
+		t := time.NewTicker(interval)
+		defer t.Stop()
+		for range t.C {
+			fmt.Println("ACTUALLY RELATED INDEXERS", Indexers.Addrs, len(Indexers.Addrs))
+			ix.gc()
+		}
+	}()
+}
+
+func (ix *LongLivedStreamRecordedService[T]) gc() {
+	ix.StreamMU.Lock()
+	now := time.Now().UTC()
+	if ix.StreamRecords[ProtocolHeartbeat] == nil {
+		ix.StreamRecords[ProtocolHeartbeat] = map[pp.ID]*StreamRecord[T]{}
+		ix.StreamMU.Unlock()
+		return
+	}
+	streams := ix.StreamRecords[ProtocolHeartbeat]
+
+	type gcEntry struct {
+		pid  pp.ID
+		name string
+		did  string
+	}
+	var evicted []gcEntry
+	for pid, rec := range streams {
+		if now.After(rec.HeartbeatStream.Expiry) || now.Sub(rec.HeartbeatStream.UptimeTracker.LastSeen) > 2*rec.HeartbeatStream.Expiry.Sub(now) {
+			name, did := "", ""
+			if rec.HeartbeatStream != nil {
+				name = rec.HeartbeatStream.Name
+				did = rec.HeartbeatStream.DID
+			}
+			evicted = append(evicted, gcEntry{pid, name, did})
+			for _, sstreams := range ix.StreamRecords {
+				if sstreams[pid] != nil {
+					delete(sstreams, pid)
+				}
+			}
+		}
+	}
+	ix.StreamMU.Unlock()
+
+	if ix.AfterDelete != nil {
+		for _, e := range evicted {
+			ix.AfterDelete(e.pid, e.name, e.did)
+		}
+	}
+}
+
+func (ix *LongLivedStreamRecordedService[T]) Snapshot(interval time.Duration) {
+	go func() {
+		logger := oclib.GetLogger()
+		t := time.NewTicker(interval)
+		defer t.Stop()
+		for range t.C {
+			infos := ix.snapshot()
+			for _, inf := range infos {
+				logger.Info().Msg(" -> " + inf.DID)
+			}
+		}
+	}()
+}
+
+// -------- Snapshot / Query --------
+func (ix *LongLivedStreamRecordedService[T]) snapshot() []*StreamRecord[T] {
+	ix.StreamMU.Lock()
+	defer ix.StreamMU.Unlock()
+
+	out := make([]*StreamRecord[T], 0, len(ix.StreamRecords))
+	for _, streams := range ix.StreamRecords {
+		for _, stream := range streams {
+			out = append(out, stream)
+		}
+	}
+	return out
+}
+
+func (ix *LongLivedStreamRecordedService[T]) HandleHeartbeat(s network.Stream) {
+	logger := oclib.GetLogger()
+	defer s.Close()
+
+	// AllowInbound: burst guard + ban check before the first byte is read.
+	if ix.AllowInbound != nil {
+		remotePeer := s.Conn().RemotePeer()
+		ix.StreamMU.RLock()
+		_, exists := ix.StreamRecords[ProtocolHeartbeat][remotePeer]
+		ix.StreamMU.RUnlock()
+		if err := ix.AllowInbound(remotePeer, !exists); err != nil {
+			logger.Warn().Err(err).Str("peer", remotePeer.String()).Msg("inbound connection refused")
+			s.Reset()
+			return
+		}
+	}
+
+	dec := json.NewDecoder(s)
+	for {
+		ix.StreamMU.Lock()
+		if ix.StreamRecords[ProtocolHeartbeat] == nil {
+			ix.StreamRecords[ProtocolHeartbeat] = map[pp.ID]*StreamRecord[T]{}
+		}
+		streams := ix.StreamRecords[ProtocolHeartbeat]
+		streamsAnonym := map[pp.ID]HeartBeatStreamed{}
+		for k, v := range streams {
+			streamsAnonym[k] = v
+		}
+		ix.StreamMU.Unlock()
+		pid, hb, err := CheckHeartbeat(ix.Host, s, dec, streamsAnonym, &ix.StreamMU, ix.maxNodesConn)
+		if err != nil {
+			// Stream-level errors (EOF, reset, closed) mean the connection is gone
+			// — exit so the goroutine doesn't spin forever on a dead stream.
+			// Metric/policy errors (score too low, too many connections) are transient
+			// — those are also stream-terminal since the stream carries one session.
+			if errors.Is(err, io.EOF) || errors.Is(err, io.ErrUnexpectedEOF) ||
+				strings.Contains(err.Error(), "reset") ||
+				strings.Contains(err.Error(), "closed") ||
+				strings.Contains(err.Error(), "too many connections") {
+				logger.Info().Err(err).Msg("heartbeat stream terminated, closing handler")
+				return
+			}
+			logger.Warn().Err(err).Msg("heartbeat check failed, retrying on same stream")
+			continue
+		}
+		// ValidateHeartbeat: per-tick behavioral check (rate limiting, bans).
+		if ix.ValidateHeartbeat != nil {
+			if err := ix.ValidateHeartbeat(*pid); err != nil {
+				logger.Warn().Err(err).Str("peer", pid.String()).Msg("heartbeat rejected, closing stream")
+				s.Reset()
+				return
+			}
+		}
+		ix.StreamMU.Lock()
+		// if record already seen update last seen
+		if rec, ok := streams[*pid]; ok {
+			rec.DID = hb.DID
+			// Preserve the existing UptimeTracker so TotalOnline accumulates correctly.
+			// hb.Stream is a fresh Stream with no UptimeTracker; carry the old one over.
+			oldTracker := rec.GetUptimeTracker()
+			rec.HeartbeatStream = hb.Stream
+			if oldTracker != nil {
+				rec.HeartbeatStream.UptimeTracker = oldTracker
+			} else {
+				rec.HeartbeatStream.UptimeTracker = &UptimeTracker{FirstSeen: time.Now().UTC()}
+			}
+			rec.HeartbeatStream.UptimeTracker.RecordHeartbeat()
+			rec.LastScore = hb.Score
+			logger.Info().Msg("A new node is updated : " + pid.String())
+		} else {
+			tracker := &UptimeTracker{FirstSeen: time.Now().UTC()}
+			tracker.RecordHeartbeat()
+			hb.Stream.UptimeTracker = tracker
+			streams[*pid] = &StreamRecord[T]{
+				DID:             hb.DID,
+				HeartbeatStream: hb.Stream,
+				LastScore:       hb.Score,
+			}
+			logger.Info().Msg("A new node is subscribed : " + pid.String())
+		}
+		ix.StreamMU.Unlock()
+		// Enrich hb.DID before calling the hook: nodes never set hb.DID directly;
+		// extract it from the embedded signed PeerRecord if available, then fall
+		// back to the DID stored by handleNodePublish in the stream record.
+		if hb.DID == "" && len(hb.Record) > 0 {
+			var partial struct {
+				DID string `json:"did"`
+			}
+			if json.Unmarshal(hb.Record, &partial) == nil && partial.DID != "" {
+				hb.DID = partial.DID
+			}
+		}
+		if hb.DID == "" {
+			ix.StreamMU.RLock()
+			if rec, ok := streams[*pid]; ok {
+				hb.DID = rec.DID
+			}
+			ix.StreamMU.RUnlock()
+		}
+		if ix.AfterHeartbeat != nil && hb.DID != "" {
+			ix.AfterHeartbeat(hb)
+		}
+		// Send response back to the node (bidirectional heartbeat).
+		if ix.BuildHeartbeatResponse != nil {
+			if resp := ix.BuildHeartbeatResponse(s.Conn().RemotePeer(), hb.Need, hb.Challenges, hb.ChallengeDID, hb.Referent); resp != nil {
+				s.SetWriteDeadline(time.Now().Add(3 * time.Second))
+				json.NewEncoder(s).Encode(resp)
+				s.SetWriteDeadline(time.Time{})
+			}
+		}
+	}
+}
+
+func CheckHeartbeat(h host.Host, s network.Stream, dec *json.Decoder, streams map[pp.ID]HeartBeatStreamed, lock *sync.RWMutex, maxNodes int) (*pp.ID, *Heartbeat, error) {
+	if len(h.Network().Peers()) >= maxNodes {
+		return nil, nil, fmt.Errorf("too many connections, try another indexer")
+	}
+	var hb Heartbeat
+	if err := dec.Decode(&hb); err != nil {
+		return nil, nil, err
+	}
+	_, bpms, latencyScore, _ := getBandwidthChallengeRate(h, s.Conn().RemotePeer(), MinPayloadChallenge+int(rand.Float64()*(MaxPayloadChallenge-MinPayloadChallenge)))
+	{
+		pid, err := pp.Decode(hb.PeerID)
+		if err != nil {
+			return nil, nil, err
+		}
+		uptimeRatio := float64(0)
+		age := time.Duration(0)
+		lock.Lock()
+		if rec, ok := streams[pid]; ok && rec.GetUptimeTracker() != nil {
+			uptimeRatio = rec.GetUptimeTracker().UptimeRatio()
+			age = rec.GetUptimeTracker().Uptime()
+		}
+		lock.Unlock()
+		// E: measure the indexer's own subnet diversity, not the node's view.
+		diversity := getOwnDiversityRate(h)
+		// fillRate: fraction of indexer capacity used — higher = more peers trust this indexer.
+		fillRate := 0.0
+		if maxNodes > 0 {
+			fillRate = float64(len(h.Network().Peers())) / float64(maxNodes)
+			if fillRate > 1 {
+				fillRate = 1
+			}
+		}
+		hb.ComputeIndexerScore(uptimeRatio, bpms, diversity, latencyScore, fillRate)
+		// B: dynamic minScore — starts at 20% for brand-new peers, ramps to 80% at 24h.
+		minScore := dynamicMinScore(age)
+		if hb.Score < minScore {
+			return nil, nil, errors.New("not enough trusting value")
+		}
+		hb.Stream = &Stream{
+			Name:   hb.Name,
+			DID:    hb.DID,
+			Stream: s,
+			Expiry: time.Now().UTC().Add(2 * time.Minute),
+		} // here is the long-lived bidirectional heartbeat.
+		return &pid, &hb, err
+	}
+}

daemons/node/common/common_stream.go

@@ -0,0 +1,206 @@
+package common
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"sync"
+	"time"
+
+	oclib "cloud.o-forge.io/core/oc-lib"
+	"github.com/libp2p/go-libp2p/core/host"
+	"github.com/libp2p/go-libp2p/core/network"
+	pp "github.com/libp2p/go-libp2p/core/peer"
+	"github.com/libp2p/go-libp2p/core/protocol"
+)
+
+const (
+	ProtocolPublish = "/opencloud/record/publish/1.0"
+	ProtocolGet     = "/opencloud/record/get/1.0"
+)
+
+const ProtocolHeartbeat = "/opencloud/heartbeat/1.0"
+
+// ProtocolWitnessQuery is opened by a node to ask a peer what it thinks of a given indexer.
+const ProtocolWitnessQuery = "/opencloud/witness/1.0"
+
+// ProtocolSearchPeer is opened by a node toward one of its indexers to start a
+// distributed peer search. The stream stays open; the indexer writes
+// SearchPeerResult JSON objects as results arrive from the GossipSub mesh.
+const ProtocolSearchPeer = "/opencloud/search/peer/1.0"
+
+// ProtocolSearchPeerResponse is opened by an indexer back toward the emitting
+// indexer to deliver search results found in its referencedNodes.
+const ProtocolSearchPeerResponse = "/opencloud/search/peer/response/1.0"
+
+// ProtocolBandwidthProbe is a dedicated short-lived stream used exclusively
+// for bandwidth/latency measurement. The handler echoes any bytes it receives.
+// All nodes and indexers register this handler so peers can measure them.
+const ProtocolBandwidthProbe = "/opencloud/probe/1.0"
+
+type Stream struct {
+	Name          string `json:"name"`
+	DID           string `json:"did"`
+	Stream        network.Stream
+	Expiry        time.Time `json:"expiry"`
+	UptimeTracker *UptimeTracker
+}
+
+func (s *Stream) GetUptimeTracker() *UptimeTracker {
+	return s.UptimeTracker
+}
+
+func NewStream[T interface{}](s network.Stream, did string, record T) *Stream {
+	return &Stream{
+		DID:    did,
+		Stream: s,
+		Expiry: time.Now().UTC().Add(2 * time.Minute),
+	}
+}
+
+type StreamRecord[T interface{}] struct {
+	DID             string
+	HeartbeatStream *Stream
+	Record          T
+	LastScore       float64
+}
+
+func (s *StreamRecord[T]) GetUptimeTracker() *UptimeTracker {
+	if s.HeartbeatStream == nil {
+		return nil
+	}
+	return s.HeartbeatStream.UptimeTracker
+}
+
+type ProtocolInfo struct {
+	PersistantStream bool
+	WaitResponse     bool
+	TTL              time.Duration
+}
+
+func TempStream(h host.Host, ad pp.AddrInfo, proto protocol.ID, did string, streams ProtocolStream, pts map[protocol.ID]*ProtocolInfo, mu *sync.RWMutex) (ProtocolStream, error) {
+	expiry := 2 * time.Second
+	if pts[proto] != nil {
+		expiry = pts[proto].TTL
+	}
+	ctxTTL, cancelTTL := context.WithTimeout(context.Background(), expiry)
+	defer cancelTTL()
+	if h.Network().Connectedness(ad.ID) != network.Connected {
+		if err := h.Connect(ctxTTL, ad); err != nil {
+			return streams, err
+		}
+	}
+
+	if streams[proto] != nil && streams[proto][ad.ID] != nil {
+		return streams, nil
+	} else if s, err := h.NewStream(ctxTTL, ad.ID, proto); err == nil {
+		mu.Lock()
+		if streams[proto] == nil {
+			streams[proto] = map[pp.ID]*Stream{}
+		}
+		mu.Unlock()
+		time.AfterFunc(expiry, func() {
+			mu.Lock()
+			delete(streams[proto], ad.ID)
+			mu.Unlock()
+		})
+		mu.Lock()
+		streams[proto][ad.ID] = &Stream{
+			DID:    did,
+			Stream: s,
+			Expiry: time.Now().UTC().Add(expiry),
+		}
+		mu.Unlock()
+		return streams, nil
+	} else {
+		return streams, err
+	}
+}
+
+func sendHeartbeat(ctx context.Context, h host.Host, proto protocol.ID, p *pp.AddrInfo,
+	hb Heartbeat, ps ProtocolStream, interval time.Duration) (*HeartbeatResponse, time.Duration, error) {
+	logger := oclib.GetLogger()
+	if ps[proto] == nil {
+		ps[proto] = map[pp.ID]*Stream{}
+	}
+	streams := ps[proto]
+	pss, exists := streams[p.ID]
+	ctxTTL, cancel := context.WithTimeout(ctx, 3*interval)
+	defer cancel()
+	if h.Network().Connectedness(p.ID) != network.Connected {
+		if err := h.Connect(ctxTTL, *p); err != nil {
+			logger.Err(err)
+			return nil, 0, err
+		}
+		exists = false
+	}
+	if !exists || pss.Stream == nil {
+		logger.Info().Msg("New Stream engaged as Heartbeat " + fmt.Sprintf("%v", proto) + " " + p.ID.String())
+		s, err := h.NewStream(ctx, p.ID, proto)
+		if err != nil {
+			fmt.Println(s, err, p.ID)
+			logger.Err(err)
+			return nil, 0, err
+		}
+		pss = &Stream{
+			Stream: s,
+			Expiry: time.Now().UTC().Add(2 * time.Minute),
+		}
+		streams[p.ID] = pss
+	}
+
+	sentAt := time.Now()
+	if err := json.NewEncoder(pss.Stream).Encode(&hb); err != nil {
+		pss.Stream.Close()
+		pss.Stream = nil
+		return nil, 0, err
+	}
+	pss.Expiry = time.Now().UTC().Add(2 * time.Minute)
+
+	// Try to read a response (indexers that support bidirectional heartbeat respond).
+	pss.Stream.SetReadDeadline(time.Now().Add(5 * time.Second))
+	var resp HeartbeatResponse
+	rtt := time.Since(sentAt)
+	if err := json.NewDecoder(pss.Stream).Decode(&resp); err == nil {
+		rtt = time.Since(sentAt)
+		pss.Stream.SetReadDeadline(time.Time{})
+		return &resp, rtt, nil
+	}
+	pss.Stream.SetReadDeadline(time.Time{})
+	return nil, rtt, nil
+}
+
+func AddStreamProtocol(ctx *context.Context, protoS ProtocolStream, h host.Host, proto protocol.ID, id pp.ID, mypid pp.ID, force bool, onStreamCreated *func(network.Stream)) ProtocolStream {
+	logger := oclib.GetLogger()
+	if onStreamCreated == nil {
+		f := func(s network.Stream) {
+			protoS[proto][id] = &Stream{
+				Stream: s,
+				Expiry: time.Now().UTC().Add(2 * time.Minute),
+			}
+		}
+		onStreamCreated = &f
+	}
+	f := *onStreamCreated
+	if mypid > id || force {
+		if ctx == nil {
+			c := context.Background()
+			ctx = &c
+		}
+		if protoS[proto] == nil {
+			protoS[proto] = map[pp.ID]*Stream{}
+		}
+
+		if protoS[proto][id] != nil {
+			protoS[proto][id].Expiry = time.Now().Add(2 * time.Minute)
+		} else {
+			logger.Info().Msg("NEW STREAM Generated" + fmt.Sprintf("%v", proto) + " " + id.String())
+			s, err := h.NewStream(*ctx, id, proto)
+			if err != nil {
+				panic(err.Error())
+			}
+			f(s)
+		}
+	}
+	return protoS
+}

daemons/node/common/consensus.go

@@ -0,0 +1,199 @@
+package common
+
+import (
+	"context"
+	"encoding/json"
+	"sort"
+	"time"
+
+	oclib "cloud.o-forge.io/core/oc-lib"
+	"github.com/libp2p/go-libp2p/core/host"
+	"github.com/libp2p/go-libp2p/core/network"
+	pp "github.com/libp2p/go-libp2p/core/peer"
+)
+
+// ProtocolIndexerCandidates is opened by a node toward its remaining indexers
+// to request candidate replacement indexers after an ejection event.
+const ProtocolIndexerCandidates = "/opencloud/indexer/candidates/1.0"
+
+// IndexerCandidatesRequest is sent by a node to one of its indexers.
+// Count is how many candidates are needed.
+type IndexerCandidatesRequest struct {
+	Count int `json:"count"`
+}
+
+// IndexerCandidatesResponse carries a random sample of known indexers from
+// the responding indexer's DHT cache.
+type IndexerCandidatesResponse struct {
+	Candidates []pp.AddrInfo `json:"candidates"`
+}
+
+// TriggerConsensus asks each remaining indexer for a random pool of candidates,
+// scores them asynchronously via a one-shot probe heartbeat, and admits the
+// best ones to StaticIndexers. Falls back to DHT replenishment for any gap.
+//
+// Must be called in a goroutine — it blocks until all probes have returned
+// (or timed out), which can take up to ~10s.
+func TriggerConsensus(h host.Host, remaining []pp.AddrInfo, need int) {
+	if need <= 0 || len(remaining) == 0 {
+		return
+	}
+	logger := oclib.GetLogger()
+	logger.Info().Int("voters", len(remaining)).Int("need", need).
+		Msg("[consensus] starting indexer candidate consensus")
+
+	// Phase 1 — collect candidates from all remaining indexers in parallel.
+	type collectResult struct{ candidates []pp.AddrInfo }
+	collectCh := make(chan collectResult, len(remaining))
+	for _, ai := range remaining {
+		go func(ai pp.AddrInfo) {
+			ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+			defer cancel()
+			s, err := h.NewStream(ctx, ai.ID, ProtocolIndexerCandidates)
+			if err != nil {
+				collectCh <- collectResult{}
+				return
+			}
+			defer s.Close()
+			s.SetDeadline(time.Now().Add(5 * time.Second))
+			if err := json.NewEncoder(s).Encode(IndexerCandidatesRequest{Count: need + 2}); err != nil {
+				collectCh <- collectResult{}
+				return
+			}
+			var resp IndexerCandidatesResponse
+			if err := json.NewDecoder(s).Decode(&resp); err != nil {
+				collectCh <- collectResult{}
+				return
+			}
+			collectCh <- collectResult{candidates: resp.Candidates}
+		}(ai)
+	}
+
+	// Merge and deduplicate, excluding indexers already in the pool.
+	seen := map[pp.ID]struct{}{}
+	for _, ai := range Indexers.GetAddrIDs() {
+		seen[ai] = struct{}{}
+
+	}
+	var candidates []pp.AddrInfo
+	for range remaining {
+		r := <-collectCh
+		for _, ai := range r.candidates {
+			if _, dup := seen[ai.ID]; !dup {
+				seen[ai.ID] = struct{}{}
+				candidates = append(candidates, ai)
+			}
+		}
+	}
+
+	if len(candidates) == 0 {
+		logger.Info().Msg("[consensus] no candidates from voters, falling back to DHT")
+		replenishIndexersFromDHT(h, need)
+		return
+	}
+	logger.Info().Int("candidates", len(candidates)).Msg("[consensus] scoring candidates")
+
+	// Phase 2 — score all candidates in parallel via a one-shot probe heartbeat.
+	type scoreResult struct {
+		ai    pp.AddrInfo
+		score float64
+	}
+	scoreCh := make(chan scoreResult, len(candidates))
+	for _, ai := range candidates {
+		go func(ai pp.AddrInfo) {
+			resp, rtt, err := probeIndexer(h, ai)
+			if err != nil {
+				scoreCh <- scoreResult{ai: ai, score: 0}
+				return
+			}
+			scoreCh <- scoreResult{ai: ai, score: quickScore(resp, rtt)}
+		}(ai)
+	}
+
+	results := make([]scoreResult, 0, len(candidates))
+	for range candidates {
+		results = append(results, <-scoreCh)
+	}
+
+	// Sort descending by quick score, admit top `need` above the minimum bar.
+	sort.Slice(results, func(i, j int) bool { return results[i].score > results[j].score })
+	minQ := dynamicMinScore(0) // fresh peer: threshold starts at 20
+
+	admitted := 0
+	for _, res := range results {
+		if admitted >= need {
+			break
+		}
+		if res.score < minQ {
+			break // sorted desc: everything after is worse
+		}
+		key := addrKey(res.ai)
+		if Indexers.ExistsAddr(key) {
+			continue // already in pool (race with heartbeat path)
+		}
+		cpy := res.ai
+		Indexers.SetAddr(key, &cpy)
+		admitted++
+	}
+
+	if admitted > 0 {
+		logger.Info().Int("admitted", admitted).Msg("[consensus] candidates admitted to pool")
+		Indexers.NudgeIt()
+	}
+
+	// Fill any remaining gap with DHT discovery.
+	if gap := need - admitted; gap > 0 {
+		logger.Info().Int("gap", gap).Msg("[consensus] gap after consensus, falling back to DHT")
+		replenishIndexersFromDHT(h, gap)
+	}
+}
+
+// probeIndexer dials the candidate, sends one lightweight heartbeat, and
+// returns the HeartbeatResponse (nil if the indexer doesn't support it) and RTT.
+func probeIndexer(h host.Host, ai pp.AddrInfo) (*HeartbeatResponse, time.Duration, error) {
+	ctx, cancel := context.WithTimeout(context.Background(), 8*time.Second)
+	defer cancel()
+	if h.Network().Connectedness(ai.ID) != network.Connected {
+		if err := h.Connect(ctx, ai); err != nil {
+			return nil, 0, err
+		}
+	}
+	s, err := h.NewStream(ctx, ai.ID, ProtocolHeartbeat)
+	if err != nil {
+		return nil, 0, err
+	}
+	defer s.Close()
+
+	hb := Heartbeat{PeerID: h.ID().String(), Timestamp: time.Now().UTC().Unix()}
+	s.SetWriteDeadline(time.Now().Add(3 * time.Second))
+	if err := json.NewEncoder(s).Encode(hb); err != nil {
+		return nil, 0, err
+	}
+	s.SetWriteDeadline(time.Time{})
+
+	sentAt := time.Now()
+	s.SetReadDeadline(time.Now().Add(5 * time.Second))
+	var resp HeartbeatResponse
+	if err := json.NewDecoder(s).Decode(&resp); err != nil {
+		// Indexer connected but no response: connection itself is the signal.
+		return nil, time.Since(sentAt), nil
+	}
+	return &resp, time.Since(sentAt), nil
+}
+
+// quickScore computes a lightweight score [0,100] from a probe result.
+// Uses only fill rate (inverse) and latency — the two signals available
+// without a full heartbeat history.
+func quickScore(resp *HeartbeatResponse, rtt time.Duration) float64 {
+	maxRTT := BaseRoundTrip * 10
+	latencyScore := 1.0 - float64(rtt)/float64(maxRTT)
+	if latencyScore < 0 {
+		latencyScore = 0
+	}
+	if resp == nil {
+		// Connection worked but no response (old indexer): moderate score.
+		return latencyScore * 50
+	}
+	fillScore := 1.0 - resp.FillRate // prefer less-loaded indexers
+	return (0.5*latencyScore + 0.5*fillScore) * 100
+}

daemons/node/common/crypto.go

@@ -0,0 +1,66 @@
+package common
+
+import (
+	"bytes"
+	"encoding/base64"
+	"errors"
+	"oc-discovery/conf"
+	"oc-discovery/models"
+	"os"
+
+	"cloud.o-forge.io/core/oc-lib/models/peer"
+	"github.com/libp2p/go-libp2p/core/crypto"
+	"github.com/libp2p/go-libp2p/core/pnet"
+)
+
+func VerifyPeer(peers []*peer.Peer, event models.Event) error {
+	if len(peers) == 0 {
+		return errors.New("no peer found")
+	}
+	p := peers[0]
+	if p.Relation == peer.BLACKLIST { // if peer is blacklisted... quit...
+		return errors.New("peer is blacklisted")
+	}
+	pubKey, err := PubKeyFromString(p.PublicKey) // extract pubkey from pubkey str
+	if err != nil {
+		return errors.New("pubkey is malformed")
+	}
+	data, err := event.ToRawByte()
+	if err != nil {
+		return err
+	} // extract byte from raw event excluding signature.
+	if ok, _ := pubKey.Verify(data, event.Signature); !ok { // then verify if pubkey sign this message...
+		return errors.New("check signature failed")
+	}
+	return nil
+}
+
+func Sign(priv crypto.PrivKey, data []byte) ([]byte, error) {
+	return priv.Sign(data)
+}
+
+func Verify(pub crypto.PubKey, data, sig []byte) (bool, error) {
+	return pub.Verify(data, sig)
+}
+
+func LoadPSKFromFile() (pnet.PSK, error) {
+	path := conf.GetConfig().PSKPath
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+	psk, err := pnet.DecodeV1PSK(bytes.NewReader(data))
+	if err != nil {
+		return nil, err
+	}
+	return psk, nil
+}
+
+func PubKeyFromString(s string) (crypto.PubKey, error) {
+	data, err := base64.StdEncoding.DecodeString(s)
+	if err != nil {
+		return nil, err
+	}
+
+	return crypto.UnmarshalPublicKey(data)
+}

daemons/node/common/dht_discovery.go

@@ -0,0 +1,219 @@
+package common
+
+import (
+	"context"
+	"math/rand"
+	"strings"
+	"time"
+
+	oclib "cloud.o-forge.io/core/oc-lib"
+	"github.com/ipfs/go-cid"
+	dht "github.com/libp2p/go-libp2p-kad-dht"
+	"github.com/libp2p/go-libp2p/core/host"
+	pp "github.com/libp2p/go-libp2p/core/peer"
+	ma "github.com/multiformats/go-multiaddr"
+	mh "github.com/multiformats/go-multihash"
+)
+
+// FilterLoopbackAddrs strips loopback (127.x, ::1) and unspecified addresses
+// from an AddrInfo so we never hand peers an address they cannot dial externally.
+func FilterLoopbackAddrs(ai pp.AddrInfo) pp.AddrInfo {
+	filtered := make([]ma.Multiaddr, 0, len(ai.Addrs))
+	for _, addr := range ai.Addrs {
+		ip, err := ExtractIP(addr.String())
+		if err != nil || ip.IsLoopback() || ip.IsUnspecified() {
+			continue
+		}
+		filtered = append(filtered, addr)
+	}
+	return pp.AddrInfo{ID: ai.ID, Addrs: filtered}
+}
+
+// RecommendedHeartbeatInterval is the target period between heartbeat ticks.
+// Indexers use this as the DHT Provide refresh interval.
+const RecommendedHeartbeatInterval = 60 * time.Second
+
+// discoveryDHT is the DHT instance used for indexer discovery.
+// Set by SetDiscoveryDHT once the indexer service initialises its DHT.
+var discoveryDHT *dht.IpfsDHT
+
+// SetDiscoveryDHT stores the DHT instance used by replenishIndexersFromDHT.
+// Called by NewIndexerService once the DHT is ready.
+func SetDiscoveryDHT(d *dht.IpfsDHT) {
+	discoveryDHT = d
+}
+
+// initNodeDHT creates a lightweight DHT client for pure nodes (no IndexerService).
+// Uses the seed indexers as bootstrap peers. Called lazily by ConnectToIndexers
+// when discoveryDHT is still nil after the initial warm-up delay.
+func initNodeDHT(h host.Host, seeds []Entry) {
+	logger := oclib.GetLogger()
+	bootstrapPeers := []pp.AddrInfo{}
+	for _, s := range seeds {
+		bootstrapPeers = append(bootstrapPeers, *s.Info)
+	}
+	d, err := dht.New(context.Background(), h,
+		dht.Mode(dht.ModeClient),
+		dht.ProtocolPrefix("oc"),
+		dht.BootstrapPeers(bootstrapPeers...),
+	)
+	if err != nil {
+		logger.Warn().Err(err).Msg("[dht] node DHT client init failed")
+		return
+	}
+	SetDiscoveryDHT(d)
+	ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
+	defer cancel()
+	if err := d.Bootstrap(ctx); err != nil {
+		logger.Warn().Err(err).Msg("[dht] node DHT client bootstrap failed")
+	}
+	logger.Info().Msg("[dht] node DHT client ready")
+}
+
+// IndexerCID returns the well-known CID under which all indexers advertise.
+func IndexerCID() cid.Cid {
+	h, _ := mh.Sum([]byte("/opencloud/indexers"), mh.SHA2_256, -1)
+	return cid.NewCidV1(cid.Raw, h)
+}
+
+// DiscoverIndexersFromDHT uses the DHT to find up to count indexers advertising
+// under the well-known key. Excludes self. Resolves addresses when the provider
+// record carries none.
+func DiscoverIndexersFromDHT(h host.Host, d *dht.IpfsDHT, count int) []pp.AddrInfo {
+	logger := oclib.GetLogger()
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+
+	c := IndexerCID()
+	ch := d.FindProvidersAsync(ctx, c, count*2)
+	seen := map[pp.ID]struct{}{}
+	var results []pp.AddrInfo
+	for ai := range ch {
+		if ai.ID == h.ID() {
+			continue
+		}
+		if _, dup := seen[ai.ID]; dup {
+			continue
+		}
+		seen[ai.ID] = struct{}{}
+		if len(ai.Addrs) == 0 {
+			resolved, err := d.FindPeer(ctx, ai.ID)
+			if err != nil {
+				logger.Warn().Str("peer", ai.ID.String()).Msg("[dht] no addrs and FindPeer failed, skipping")
+				continue
+			}
+			ai = resolved
+		}
+		ai = FilterLoopbackAddrs(ai)
+		if len(ai.Addrs) == 0 {
+			continue
+		}
+		results = append(results, ai)
+		if len(results) >= count {
+			break
+		}
+	}
+	logger.Info().Int("found", len(results)).Msg("[dht] indexer discovery complete")
+	return results
+}
+
+// SelectByFillRate picks up to want providers using fill-rate weighted random
+// selection w(F) = F*(1-F) — peaks at F=0.5, prefers less-loaded indexers.
+// Providers with unknown fill rate receive F=0.5 (neutral prior).
+// Enforces subnet /24 diversity: at most one indexer per /24.
+func SelectByFillRate(providers []pp.AddrInfo, fillRates map[pp.ID]float64, want int) []pp.AddrInfo {
+	if len(providers) == 0 || want <= 0 {
+		return nil
+	}
+	type weighted struct {
+		ai     pp.AddrInfo
+		weight float64
+	}
+	ws := make([]weighted, 0, len(providers))
+	for _, ai := range providers {
+		f, ok := fillRates[ai.ID]
+		if !ok {
+			f = 0.5
+		}
+		ws = append(ws, weighted{ai: ai, weight: f * (1 - f)})
+	}
+	// Shuffle first for fairness among equal-weight peers.
+	rand.Shuffle(len(ws), func(i, j int) { ws[i], ws[j] = ws[j], ws[i] })
+	// Sort descending by weight (simple insertion sort — small N).
+	for i := 1; i < len(ws); i++ {
+		for j := i; j > 0 && ws[j].weight > ws[j-1].weight; j-- {
+			ws[j], ws[j-1] = ws[j-1], ws[j]
+		}
+	}
+
+	subnets := map[string]struct{}{}
+	var selected []pp.AddrInfo
+	for _, w := range ws {
+		if len(selected) >= want {
+			break
+		}
+		subnet := subnetOf(w.ai)
+		if subnet != "" {
+			if _, dup := subnets[subnet]; dup {
+				continue
+			}
+			subnets[subnet] = struct{}{}
+		}
+		selected = append(selected, w.ai)
+	}
+	return selected
+}
+
+// subnetOf returns the /24 subnet string for the first non-loopback address of ai.
+func subnetOf(ai pp.AddrInfo) string {
+	for _, ma := range ai.Addrs {
+		ip, err := ExtractIP(ma.String())
+		if err != nil || ip.IsLoopback() {
+			continue
+		}
+		parts := strings.Split(ip.String(), ".")
+		if len(parts) >= 3 {
+			return parts[0] + "." + parts[1] + "." + parts[2]
+		}
+	}
+	return ""
+}
+
+// replenishIndexersFromDHT is called when an indexer heartbeat fails and more
+// indexers are needed. Queries the DHT and adds fresh entries to StaticIndexers.
+func replenishIndexersFromDHT(h host.Host, need int) {
+	if need <= 0 || discoveryDHT == nil {
+		return
+	}
+	logger := oclib.GetLogger()
+	logger.Info().Int("need", need).Msg("[dht] replenishing indexer pool from DHT")
+
+	providers := DiscoverIndexersFromDHT(h, discoveryDHT, need*3)
+	selected := SelectByFillRate(providers, nil, need)
+	if len(selected) == 0 {
+		logger.Warn().Msg("[dht] no indexers found in DHT for replenishment")
+		return
+	}
+
+	added := 0
+	for _, ai := range selected {
+		addr := addrKey(ai)
+		if !Indexers.ExistsAddr(addr) {
+			adCopy := ai
+			Indexers.SetAddr(addr, &adCopy)
+			added++
+		}
+	}
+
+	if added > 0 {
+		logger.Info().Int("added", added).Msg("[dht] indexers added from DHT")
+		Indexers.NudgeIt()
+	}
+}
+
+// addrKey returns the canonical map key for an AddrInfo.
+// The PeerID is used as key so the same peer is never stored twice regardless
+// of which of its addresses was seen first.
+func addrKey(ai pp.AddrInfo) string {
+	return ai.ID.String()
+}

daemons/node/common/interface.go

@@ -0,0 +1,17 @@
+package common
+
+import (
+	"context"
+
+	"cloud.o-forge.io/core/oc-lib/models/peer"
+	pubsub "github.com/libp2p/go-libp2p-pubsub"
+)
+
+type HeartBeatStreamed interface {
+	GetUptimeTracker() *UptimeTracker
+}
+
+type DiscoveryPeer interface {
+	GetPeerRecord(ctx context.Context, key string) ([]*peer.Peer, error)
+	GetPubSub(topicName string) *pubsub.Topic
+}

daemons/node/common/utils.go

@@ -0,0 +1,68 @@
+package common
+
+import (
+	"context"
+	"fmt"
+	"math/rand"
+	"net"
+	"time"
+
+	"github.com/libp2p/go-libp2p/core/host"
+	pp "github.com/libp2p/go-libp2p/core/peer"
+	"github.com/multiformats/go-multiaddr"
+)
+
+func PeerIsAlive(h host.Host, ad pp.AddrInfo) bool {
+	ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
+	defer cancel()
+
+	err := h.Connect(ctx, ad)
+	return err == nil
+}
+
+func ExtractIP(addr string) (net.IP, error) {
+	ma, err := multiaddr.NewMultiaddr(addr)
+	if err != nil {
+		return nil, err
+	}
+	ipStr, err := ma.ValueForProtocol(multiaddr.P_IP4)
+	if err != nil {
+		ipStr, err = ma.ValueForProtocol(multiaddr.P_IP6)
+		if err != nil {
+			return nil, err
+		}
+	}
+	ip := net.ParseIP(ipStr)
+	if ip == nil {
+		return nil, fmt.Errorf("invalid IP: %s", ipStr)
+	}
+	return ip, nil
+}
+
+func GetIndexer(addrOrId string) *pp.AddrInfo {
+	return Indexers.GetAddr(addrOrId)
+}
+
+func GetIndexersIDs() []pp.ID {
+	return Indexers.GetAddrIDs()
+}
+
+func GetIndexersStr() []string {
+	return Indexers.GetAddrsStr()
+}
+
+func GetIndexers() []*pp.AddrInfo {
+	entries := Indexers.GetAddrs()
+	result := make([]*pp.AddrInfo, 0, len(entries))
+	for _, e := range entries {
+		result = append(result, e.Info)
+	}
+	return result
+}
+
+func Shuffle[T any](slice []T) []T {
+	rand.Shuffle(len(slice), func(i, j int) {
+		slice[i], slice[j] = slice[j], slice[i]
+	})
+	return slice
+}

daemons/node/connection_gater.go

@@ -0,0 +1,137 @@
+package node
+
+import (
+	"context"
+	"encoding/json"
+	"time"
+
+	"oc-discovery/daemons/node/common"
+	"oc-discovery/daemons/node/indexer"
+
+	oclib "cloud.o-forge.io/core/oc-lib"
+	"cloud.o-forge.io/core/oc-lib/dbs"
+	"cloud.o-forge.io/core/oc-lib/models/peer"
+	"github.com/libp2p/go-libp2p/core/control"
+	"github.com/libp2p/go-libp2p/core/host"
+	"github.com/libp2p/go-libp2p/core/network"
+	pp "github.com/libp2p/go-libp2p/core/peer"
+	ma "github.com/multiformats/go-multiaddr"
+)
+
+// OCConnectionGater enforces two rules on every inbound connection:
+//  1. If the peer is known locally and blacklisted → reject.
+//  2. If the peer is unknown locally → ask indexers one by one whether it
+//     exists in the DHT.  Accept as soon as one confirms it; reject if none do
+//     (or if no indexers are reachable yet, allow optimistically).
+//
+// Outbound connections are always allowed — we chose to dial them.
+type OCConnectionGater struct {
+	host host.Host
+}
+
+func newOCConnectionGater(h host.Host) *OCConnectionGater {
+	return &OCConnectionGater{host: h}
+}
+
+// InterceptPeerDial — allow all outbound dials.
+func (g *OCConnectionGater) InterceptPeerDial(_ pp.ID) bool { return true }
+
+// InterceptAddrDial — allow all outbound dials.
+func (g *OCConnectionGater) InterceptAddrDial(_ pp.ID, _ ma.Multiaddr) bool { return true }
+
+// InterceptAccept — allow at transport level (PeerID not yet known).
+func (g *OCConnectionGater) InterceptAccept(_ network.ConnMultiaddrs) bool { return true }
+
+// InterceptUpgraded — final gate; always allow (decisions already made in InterceptSecured).
+func (g *OCConnectionGater) InterceptUpgraded(_ network.Conn) (bool, control.DisconnectReason) {
+	return true, 0
+}
+
+// InterceptSecured is called after the cryptographic handshake — PeerID is now known.
+// Only inbound connections are verified; outbound are trusted.
+func (g *OCConnectionGater) InterceptSecured(dir network.Direction, pid pp.ID, _ network.ConnMultiaddrs) bool {
+	if dir == network.DirOutbound {
+		return true
+	}
+	logger := oclib.GetLogger()
+
+	// 1. Local DB lookup by PeerID.
+	access := oclib.NewRequestAdmin(oclib.LibDataEnum(oclib.PEER), nil)
+	results := access.Search(&dbs.Filters{
+		And: map[string][]dbs.Filter{ // search by name if no filters are provided
+			"peer_id": {{Operator: dbs.EQUAL.String(), Value: pid.String()}},
+		},
+	}, pid.String(), false)
+	for _, item := range results.Data {
+		p, ok := item.(*peer.Peer)
+		if !ok || p.PeerID != pid.String() {
+			continue
+		}
+		if p.Relation == peer.BLACKLIST {
+			logger.Warn().Str("peer", pid.String()).Msg("[gater] rejected blacklisted peer")
+			return false
+		}
+		// Known, not blacklisted.
+		return true
+	}
+
+	// 2. Unknown locally — verify via indexers.
+	indexers := common.Indexers.GetAddrs()
+
+	if len(indexers) == 0 {
+		// No indexers reachable yet — allow optimistically (bootstrap phase).
+		logger.Warn().Str("peer", pid.String()).Msg("[gater] no indexers available, allowing unverified inbound")
+		return true
+	}
+
+	req := indexer.GetValue{PeerID: pid.String()}
+	// A single DHT GetValue already traverses the entire DHT network, so asking
+	// a second indexer would yield the same result. We only fall through to the
+	// next indexer if the current one is unreachable (transport error), not if
+	// it returns found=false (that answer is already DHT-wide authoritative).
+	for _, ai := range indexers {
+		found, reachable := queryIndexerPeerExists(g.host, *ai.Info, req)
+		if !reachable {
+			continue // indexer down — try next
+		}
+		if !found {
+			logger.Warn().Str("peer", pid.String()).Msg("[gater] peer not found in DHT, rejecting inbound")
+		}
+		return found // definitive DHT answer
+	}
+
+	// All indexers unreachable — allow optimistically rather than blocking indefinitely.
+	logger.Warn().Str("peer", pid.String()).Msg("[gater] all indexers unreachable, allowing unverified inbound")
+	return true
+}
+
+// queryIndexerPeerExists opens a fresh one-shot stream to ai, sends a GetValue
+// request, and returns (found, reachable).
+// reachable=false means the indexer could not be reached (transport error);
+// the caller should then try another indexer.
+// reachable=true means the indexer answered — found is the DHT-wide authoritative result.
+func queryIndexerPeerExists(h host.Host, ai pp.AddrInfo, req indexer.GetValue) (found, reachable bool) {
+	ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
+	defer cancel()
+
+	if h.Network().Connectedness(ai.ID) != network.Connected {
+		if err := h.Connect(ctx, ai); err != nil {
+			return false, false
+		}
+	}
+	s, err := h.NewStream(ctx, ai.ID, common.ProtocolGet)
+	if err != nil {
+		return false, false
+	}
+	defer s.Close()
+	s.SetDeadline(time.Now().Add(3 * time.Second))
+
+	if err := json.NewEncoder(s).Encode(req); err != nil {
+		return false, false
+	}
+	var resp indexer.GetResponse
+	if err := json.NewDecoder(s).Decode(&resp); err != nil {
+		return false, false
+	}
+	return resp.Found, true
+}

daemons/node/indexer/behavior.go

@@ -0,0 +1,254 @@
+package indexer
+
+import (
+	"errors"
+	"sync"
+	"time"
+
+	"oc-discovery/conf"
+
+	pp "github.com/libp2p/go-libp2p/core/peer"
+)
+
+// ── defaults ──────────────────────────────────────────────────────────────────
+
+const (
+	defaultMaxConnPerWindow  = 20
+	defaultConnWindowSecs    = 30
+	defaultMaxHBPerMinute    = 5
+	defaultMaxPublishPerMin  = 10
+	defaultMaxGetPerMin      = 50
+	strikeThreshold          = 3
+	banDuration              = 10 * time.Minute
+	behaviorWindowDur        = 60 * time.Second
+)
+
+func cfgOr(v, def int) int {
+	if v > 0 {
+		return v
+	}
+	return def
+}
+
+// ── ConnectionRateGuard ───────────────────────────────────────────────────────
+
+// ConnectionRateGuard limits the number of NEW incoming connections accepted
+// within a sliding time window.  It protects public indexers against coordinated
+// registration floods (Sybil bursts).
+type ConnectionRateGuard struct {
+	mu          sync.Mutex
+	window      []time.Time
+	maxInWindow int
+	windowDur   time.Duration
+}
+
+func newConnectionRateGuard() *ConnectionRateGuard {
+	cfg := conf.GetConfig()
+	return &ConnectionRateGuard{
+		maxInWindow: cfgOr(cfg.MaxConnPerWindow, defaultMaxConnPerWindow),
+		windowDur:   time.Duration(cfgOr(cfg.ConnWindowSecs, defaultConnWindowSecs)) * time.Second,
+	}
+}
+
+// Allow returns true if a new connection may be accepted.
+// The internal window is pruned on each call so memory stays bounded.
+func (g *ConnectionRateGuard) Allow() bool {
+	g.mu.Lock()
+	defer g.mu.Unlock()
+	now := time.Now()
+	cutoff := now.Add(-g.windowDur)
+	i := 0
+	for i < len(g.window) && g.window[i].Before(cutoff) {
+		i++
+	}
+	g.window = g.window[i:]
+	if len(g.window) >= g.maxInWindow {
+		return false
+	}
+	g.window = append(g.window, now)
+	return true
+}
+
+// ── per-node state ────────────────────────────────────────────────────────────
+
+type nodeBehavior struct {
+	mu          sync.Mutex
+	knownDID    string
+	hbTimes     []time.Time
+	pubTimes    []time.Time
+	getTimes    []time.Time
+	strikes     int
+	bannedUntil time.Time
+}
+
+func (nb *nodeBehavior) isBanned() bool {
+	return time.Now().Before(nb.bannedUntil)
+}
+
+func (nb *nodeBehavior) strike(n int) {
+	nb.strikes += n
+	if nb.strikes >= strikeThreshold {
+		nb.bannedUntil = time.Now().Add(banDuration)
+	}
+}
+
+func pruneWindow(ts []time.Time, dur time.Duration) []time.Time {
+	cutoff := time.Now().Add(-dur)
+	i := 0
+	for i < len(ts) && ts[i].Before(cutoff) {
+		i++
+	}
+	return ts[i:]
+}
+
+// recordInWindow appends now to the window slice and returns false (+ adds a
+// strike) when the count exceeds max.
+func (nb *nodeBehavior) recordInWindow(ts *[]time.Time, max int) bool {
+	*ts = pruneWindow(*ts, behaviorWindowDur)
+	if len(*ts) >= max {
+		nb.strike(1)
+		return false
+	}
+	*ts = append(*ts, time.Now())
+	return true
+}
+
+// ── NodeBehaviorTracker ───────────────────────────────────────────────────────
+
+// NodeBehaviorTracker is the indexer-side per-node compliance monitor.
+// It is entirely local: no state is shared with other indexers.
+type NodeBehaviorTracker struct {
+	mu    sync.RWMutex
+	nodes map[pp.ID]*nodeBehavior
+
+	maxHB  int
+	maxPub int
+	maxGet int
+}
+
+func newNodeBehaviorTracker() *NodeBehaviorTracker {
+	cfg := conf.GetConfig()
+	return &NodeBehaviorTracker{
+		nodes:  make(map[pp.ID]*nodeBehavior),
+		maxHB:  cfgOr(cfg.MaxHBPerMinute, defaultMaxHBPerMinute),
+		maxPub: cfgOr(cfg.MaxPublishPerMinute, defaultMaxPublishPerMin),
+		maxGet: cfgOr(cfg.MaxGetPerMinute, defaultMaxGetPerMin),
+	}
+}
+
+func (t *NodeBehaviorTracker) get(pid pp.ID) *nodeBehavior {
+	t.mu.RLock()
+	nb := t.nodes[pid]
+	t.mu.RUnlock()
+	if nb != nil {
+		return nb
+	}
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	if nb = t.nodes[pid]; nb == nil {
+		nb = &nodeBehavior{}
+		t.nodes[pid] = nb
+	}
+	return nb
+}
+
+// IsBanned returns true when the peer is in an active ban period.
+func (t *NodeBehaviorTracker) IsBanned(pid pp.ID) bool {
+	nb := t.get(pid)
+	nb.mu.Lock()
+	defer nb.mu.Unlock()
+	return nb.isBanned()
+}
+
+// RecordHeartbeat checks heartbeat cadence. Returns an error if the peer is
+// flooding (too many heartbeats in the sliding window).
+func (t *NodeBehaviorTracker) RecordHeartbeat(pid pp.ID) error {
+	nb := t.get(pid)
+	nb.mu.Lock()
+	defer nb.mu.Unlock()
+	if nb.isBanned() {
+		return errors.New("peer is banned")
+	}
+	if !nb.recordInWindow(&nb.hbTimes, t.maxHB) {
+		return errors.New("heartbeat flood detected")
+	}
+	return nil
+}
+
+// CheckIdentity verifies that the DID associated with a PeerID never changes.
+// A DID change is a strong signal of identity spoofing.
+func (t *NodeBehaviorTracker) CheckIdentity(pid pp.ID, did string) error {
+	if did == "" {
+		return nil
+	}
+	nb := t.get(pid)
+	nb.mu.Lock()
+	defer nb.mu.Unlock()
+	if nb.knownDID == "" {
+		nb.knownDID = did
+		return nil
+	}
+	if nb.knownDID != did {
+		nb.strike(2) // identity change is severe
+		return errors.New("DID mismatch for peer " + pid.String())
+	}
+	return nil
+}
+
+// RecordBadSignature registers a cryptographic verification failure.
+// A single bad signature is worth 2 strikes (near-immediate ban).
+func (t *NodeBehaviorTracker) RecordBadSignature(pid pp.ID) {
+	nb := t.get(pid)
+	nb.mu.Lock()
+	defer nb.mu.Unlock()
+	nb.strike(2)
+}
+
+// RecordPublish checks publish volume. Returns an error if the peer is
+// sending too many publish requests.
+func (t *NodeBehaviorTracker) RecordPublish(pid pp.ID) error {
+	nb := t.get(pid)
+	nb.mu.Lock()
+	defer nb.mu.Unlock()
+	if nb.isBanned() {
+		return errors.New("peer is banned")
+	}
+	if !nb.recordInWindow(&nb.pubTimes, t.maxPub) {
+		return errors.New("publish volume exceeded")
+	}
+	return nil
+}
+
+// RecordGet checks get volume. Returns an error if the peer is enumerating
+// the DHT at an abnormal rate.
+func (t *NodeBehaviorTracker) RecordGet(pid pp.ID) error {
+	nb := t.get(pid)
+	nb.mu.Lock()
+	defer nb.mu.Unlock()
+	if nb.isBanned() {
+		return errors.New("peer is banned")
+	}
+	if !nb.recordInWindow(&nb.getTimes, t.maxGet) {
+		return errors.New("get volume exceeded")
+	}
+	return nil
+}
+
+// Cleanup removes the behavior entry for a peer if it is not currently banned.
+// Called when the peer is evicted from StreamRecords by the GC.
+func (t *NodeBehaviorTracker) Cleanup(pid pp.ID) {
+	t.mu.RLock()
+	nb := t.nodes[pid]
+	t.mu.RUnlock()
+	if nb == nil {
+		return
+	}
+	nb.mu.Lock()
+	banned := nb.isBanned()
+	nb.mu.Unlock()
+	if !banned {
+		t.mu.Lock()
+		delete(t.nodes, pid)
+		t.mu.Unlock()
+	}
+}

daemons/node/indexer/handler.go

@@ -0,0 +1,335 @@
+package indexer
+
+import (
+	"context"
+	"encoding/base64"
+	"encoding/json"
+	"errors"
+	"io"
+	"math/rand"
+	"oc-discovery/daemons/node/common"
+	"strings"
+	"time"
+
+	oclib "cloud.o-forge.io/core/oc-lib"
+	pp "cloud.o-forge.io/core/oc-lib/models/peer"
+	"cloud.o-forge.io/core/oc-lib/models/utils"
+	"cloud.o-forge.io/core/oc-lib/tools"
+	"github.com/libp2p/go-libp2p/core/crypto"
+	"github.com/libp2p/go-libp2p/core/network"
+	lpp "github.com/libp2p/go-libp2p/core/peer"
+)
+
+type PeerRecordPayload struct {
+	Name       string    `json:"name"`
+	DID        string    `json:"did"`
+	PubKey     []byte    `json:"pub_key"`
+	ExpiryDate time.Time `json:"expiry_date"`
+}
+
+type PeerRecord struct {
+	PeerRecordPayload
+	PeerID        string `json:"peer_id"`
+	APIUrl        string `json:"api_url"`
+	StreamAddress string `json:"stream_address"`
+	NATSAddress   string `json:"nats_address"`
+	WalletAddress string `json:"wallet_address"`
+	Signature     []byte `json:"signature"`
+}
+
+func (p *PeerRecord) Sign() error {
+	priv, err := tools.LoadKeyFromFilePrivate()
+	if err != nil {
+		return err
+	}
+	payload, _ := json.Marshal(p.PeerRecordPayload)
+	b, err := common.Sign(priv, payload)
+	p.Signature = b
+	return err
+}
+
+func (p *PeerRecord) Verify() (crypto.PubKey, error) {
+	pubKey, err := crypto.UnmarshalPublicKey(p.PubKey) // retrieve pub key in message
+	if err != nil {
+		return pubKey, err
+	}
+	payload, _ := json.Marshal(p.PeerRecordPayload)
+
+	if ok, _ := pubKey.Verify(payload, p.Signature); !ok { // verify minimal message was sign per pubKey
+		return pubKey, errors.New("invalid signature")
+	}
+	return pubKey, nil
+}
+
+func (pr *PeerRecord) ExtractPeer(ourkey string, key string, pubKey crypto.PubKey) (bool, *pp.Peer, error) {
+	pubBytes, err := crypto.MarshalPublicKey(pubKey)
+	if err != nil {
+		return false, nil, err
+	}
+	rel := pp.NONE
+	if ourkey == key { // at this point is PeerID is same as our... we are... thats our peer INFO
+		rel = pp.SELF
+	}
+
+	p := &pp.Peer{
+		AbstractObject: utils.AbstractObject{
+			UUID: pr.DID,
+			Name: pr.Name,
+		},
+		Relation:      rel, // VERIFY.... it crush nothing
+		PeerID:        pr.PeerID,
+		PublicKey:     base64.StdEncoding.EncodeToString(pubBytes),
+		APIUrl:        pr.APIUrl,
+		StreamAddress: pr.StreamAddress,
+		NATSAddress:   pr.NATSAddress,
+		WalletAddress: pr.WalletAddress,
+	}
+	if time.Now().UTC().After(pr.ExpiryDate) {
+		return pp.SELF == p.Relation, nil, errors.New("peer " + key + " is offline")
+	}
+	return pp.SELF == p.Relation, p, nil
+}
+
+type GetValue struct {
+	Key    string `json:"key"`
+	PeerID string `json:"peer_id,omitempty"`
+}
+
+type GetResponse struct {
+	Found   bool                  `json:"found"`
+	Records map[string]PeerRecord `json:"records,omitempty"`
+}
+
+func (ix *IndexerService) genKey(did string) string {
+	return "/node/" + did
+}
+
+func (ix *IndexerService) genPIDKey(peerID string) string {
+	return "/pid/" + peerID
+}
+
+func (ix *IndexerService) initNodeHandler() {
+	logger := oclib.GetLogger()
+	logger.Info().Msg("Init Node Handler")
+
+	// Each heartbeat from a node carries a freshly signed PeerRecord.
+	// Republish it to the DHT so the record never expires as long as the node
+	// is alive — no separate publish stream needed from the node side.
+	ix.AfterHeartbeat = func(hb *common.Heartbeat) {
+		// Priority 1: use the fresh signed PeerRecord embedded in the heartbeat.
+		// Each heartbeat tick, the node re-signs with ExpiryDate = now+2min, so
+		// this record is always fresh. Fetching from DHT would give a stale expiry.
+		var rec PeerRecord
+		if len(hb.Record) > 0 {
+			if err := json.Unmarshal(hb.Record, &rec); err != nil {
+				logger.Warn().Err(err).Msg("indexer: heartbeat embedded record unmarshal failed")
+				return
+			}
+		} else {
+			// Fallback: node didn't embed a record yet (first heartbeat before claimInfo).
+			// Fetch from DHT using the DID resolved by HandleHeartbeat.
+			ctx2, cancel2 := context.WithTimeout(context.Background(), 10*time.Second)
+			res, err := ix.DHT.GetValue(ctx2, ix.genKey(hb.DID))
+			cancel2()
+			if err != nil {
+				logger.Warn().Err(err).Str("did", hb.DID).Msg("indexer: DHT fetch for refresh failed")
+				return
+			}
+			if err := json.Unmarshal(res, &rec); err != nil {
+				logger.Warn().Err(err).Str("did", hb.DID).Msg("indexer: heartbeat record unmarshal failed")
+				return
+			}
+		}
+		if _, err := rec.Verify(); err != nil {
+			logger.Warn().Err(err).Str("did", rec.DID).Msg("indexer: heartbeat record signature invalid")
+			return
+		}
+		data, err := json.Marshal(rec)
+		if err != nil {
+			return
+		}
+		ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+		logger.Info().Msg("REFRESH PutValue " + ix.genKey(rec.DID))
+		if err := ix.DHT.PutValue(ctx, ix.genKey(rec.DID), data); err != nil {
+			logger.Warn().Err(err).Str("did", rec.DID).Msg("indexer: DHT refresh failed")
+			cancel()
+			return
+		}
+		cancel()
+		if rec.PeerID != "" {
+			ctx2, cancel2 := context.WithTimeout(context.Background(), 10*time.Second)
+			ix.DHT.PutValue(ctx2, ix.genPIDKey(rec.PeerID), []byte(rec.DID))
+			cancel2()
+		}
+	}
+	ix.Host.SetStreamHandler(common.ProtocolHeartbeat, ix.HandleHeartbeat)
+	ix.Host.SetStreamHandler(common.ProtocolPublish, ix.handleNodePublish)
+	ix.Host.SetStreamHandler(common.ProtocolGet, ix.handleNodeGet)
+	ix.Host.SetStreamHandler(common.ProtocolIndexerCandidates, ix.handleCandidateRequest)
+	ix.initSearchHandlers()
+}
+
+// handleCandidateRequest responds to a node's consensus candidate request.
+// Returns a random sample of indexers from the local DHT cache.
+func (ix *IndexerService) handleCandidateRequest(s network.Stream) {
+	defer s.Close()
+	s.SetDeadline(time.Now().Add(5 * time.Second))
+	var req common.IndexerCandidatesRequest
+	if err := json.NewDecoder(s).Decode(&req); err != nil {
+		return
+	}
+	if req.Count <= 0 || req.Count > 10 {
+		req.Count = 3
+	}
+	ix.dhtCacheMu.RLock()
+	cache := make([]dhtCacheEntry, len(ix.dhtCache))
+	copy(cache, ix.dhtCache)
+	ix.dhtCacheMu.RUnlock()
+
+	// Shuffle for randomness: each voter offers a different subset.
+	rand.Shuffle(len(cache), func(i, j int) { cache[i], cache[j] = cache[j], cache[i] })
+	candidates := make([]lpp.AddrInfo, 0, req.Count)
+	for _, e := range cache {
+		if len(candidates) >= req.Count {
+			break
+		}
+		candidates = append(candidates, e.AI)
+	}
+	json.NewEncoder(s).Encode(common.IndexerCandidatesResponse{Candidates: candidates})
+}
+
+func (ix *IndexerService) handleNodePublish(s network.Stream) {
+	defer s.Close()
+	logger := oclib.GetLogger()
+	remotePeer := s.Conn().RemotePeer()
+	if err := ix.behavior.RecordPublish(remotePeer); err != nil {
+		logger.Warn().Err(err).Str("peer", remotePeer.String()).Msg("publish refused")
+		s.Reset()
+		return
+	}
+	for {
+		var rec PeerRecord
+		if err := json.NewDecoder(s).Decode(&rec); err != nil {
+			logger.Err(err)
+			if errors.Is(err, io.EOF) || errors.Is(err, io.ErrUnexpectedEOF) ||
+				strings.Contains(err.Error(), "reset") ||
+				strings.Contains(err.Error(), "closed") ||
+				strings.Contains(err.Error(), "too many connections") {
+				return
+			}
+			continue
+		}
+		if _, err := rec.Verify(); err != nil {
+			ix.behavior.RecordBadSignature(remotePeer)
+			logger.Warn().Err(err).Str("peer", remotePeer.String()).Msg("bad signature on publish")
+			return
+		}
+		if err := ix.behavior.CheckIdentity(remotePeer, rec.DID); err != nil {
+			logger.Warn().Err(err).Msg("identity mismatch on publish")
+			s.Reset()
+			return
+		}
+		if rec.PeerID == "" || rec.ExpiryDate.Before(time.Now().UTC()) {
+			logger.Err(errors.New(rec.PeerID + " is expired."))
+			return
+		}
+		pid, err := lpp.Decode(rec.PeerID)
+		if err != nil {
+			return
+		}
+
+		ix.StreamMU.Lock()
+		defer ix.StreamMU.Unlock()
+		if ix.StreamRecords[common.ProtocolHeartbeat] == nil {
+			ix.StreamRecords[common.ProtocolHeartbeat] = map[lpp.ID]*common.StreamRecord[PeerRecord]{}
+		}
+		streams := ix.StreamRecords[common.ProtocolHeartbeat]
+		if srec, ok := streams[pid]; ok {
+			srec.DID = rec.DID
+			srec.Record = rec
+			srec.HeartbeatStream.UptimeTracker.LastSeen = time.Now().UTC()
+		}
+
+		key := ix.genKey(rec.DID)
+		data, err := json.Marshal(rec)
+		if err != nil {
+			logger.Err(err)
+			return
+		}
+		ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+		if err := ix.DHT.PutValue(ctx, key, data); err != nil {
+			logger.Err(err)
+			cancel()
+			return
+		}
+		cancel()
+
+		// Secondary index: /pid/<peerID> → DID, so peers can resolve by libp2p PeerID.
+		if rec.PeerID != "" {
+			ctx2, cancel2 := context.WithTimeout(context.Background(), 10*time.Second)
+			if err := ix.DHT.PutValue(ctx2, ix.genPIDKey(rec.PeerID), []byte(rec.DID)); err != nil {
+				logger.Err(err).Str("pid", rec.PeerID).Msg("indexer: failed to write pid index")
+			}
+			cancel2()
+		}
+		return
+	}
+}
+
+func (ix *IndexerService) handleNodeGet(s network.Stream) {
+	defer s.Close()
+	logger := oclib.GetLogger()
+	remotePeer := s.Conn().RemotePeer()
+	if err := ix.behavior.RecordGet(remotePeer); err != nil {
+		logger.Warn().Err(err).Str("peer", remotePeer.String()).Msg("get refused")
+		s.Reset()
+		return
+	}
+	for {
+		var req GetValue
+		if err := json.NewDecoder(s).Decode(&req); err != nil {
+			if errors.Is(err, io.EOF) || errors.Is(err, io.ErrUnexpectedEOF) ||
+				strings.Contains(err.Error(), "reset") ||
+				strings.Contains(err.Error(), "closed") ||
+				strings.Contains(err.Error(), "too many connections") {
+				return
+			}
+			logger.Err(err)
+			continue
+		}
+
+		resp := GetResponse{Found: false, Records: map[string]PeerRecord{}}
+
+		// Resolve DID key: by PeerID (secondary /pid/ index) or direct DID key.
+		var key string
+		if req.PeerID != "" {
+			pidCtx, pidCancel := context.WithTimeout(context.Background(), 5*time.Second)
+			did, err := ix.DHT.GetValue(pidCtx, ix.genPIDKey(req.PeerID))
+			pidCancel()
+			if err == nil {
+				key = string(did)
+			}
+		} else {
+			key = req.Key
+		}
+
+		if key != "" {
+			ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+			c, err := ix.DHT.GetValue(ctx, ix.genKey(key))
+			cancel()
+			if err == nil {
+				var rec PeerRecord
+				if json.Unmarshal(c, &rec) == nil {
+					resp.Records[rec.PeerID] = rec
+				}
+			} else {
+				logger.Err(err).Msg("Failed to fetch PeerRecord from DHT " + key)
+			}
+		}
+
+		resp.Found = len(resp.Records) > 0
+		_ = json.NewEncoder(s).Encode(resp)
+		break
+	}
+}
+

daemons/node/indexer/search.go

@@ -0,0 +1,228 @@
+package indexer
+
+import (
+	"context"
+	"encoding/json"
+	"strings"
+	"time"
+
+	"oc-discovery/conf"
+	"oc-discovery/daemons/node/common"
+
+	oclib "cloud.o-forge.io/core/oc-lib"
+	pp "github.com/libp2p/go-libp2p/core/peer"
+	"github.com/libp2p/go-libp2p/core/network"
+)
+
+const TopicSearchPeer = "oc-search-peer"
+
+// searchTimeout returns the configured search timeout, defaulting to 5s.
+func searchTimeout() time.Duration {
+	if t := conf.GetConfig().SearchTimeout; t > 0 {
+		return time.Duration(t) * time.Second
+	}
+	return 5 * time.Second
+}
+
+// initSearchHandlers registers ProtocolSearchPeer and ProtocolSearchPeerResponse
+// and subscribes to TopicSearchPeer on GossipSub.
+func (ix *IndexerService) initSearchHandlers() {
+	ix.Host.SetStreamHandler(common.ProtocolSearchPeer, ix.handleSearchPeer)
+	ix.Host.SetStreamHandler(common.ProtocolSearchPeerResponse, ix.handleSearchPeerResponse)
+	ix.initSearchSubscription()
+}
+
+// updateReferent is called from HandleHeartbeat when Referent flag changes.
+// If referent=true the node is added to referencedNodes; if false it is removed.
+func (ix *IndexerService) updateReferent(pid pp.ID, rec PeerRecord, referent bool) {
+	ix.referencedNodesMu.Lock()
+	defer ix.referencedNodesMu.Unlock()
+	if referent {
+		ix.referencedNodes[pid] = rec
+	} else {
+		delete(ix.referencedNodes, pid)
+	}
+}
+
+// searchReferenced looks up nodes in referencedNodes matching the query.
+// Matches on peerID (exact), DID (exact), or name (case-insensitive contains).
+func (ix *IndexerService) searchReferenced(peerID, did, name string) []common.SearchHit {
+	ix.referencedNodesMu.RLock()
+	defer ix.referencedNodesMu.RUnlock()
+	nameLow := strings.ToLower(name)
+	var hits []common.SearchHit
+	for pid, rec := range ix.referencedNodes {
+		pidStr := pid.String()
+		matchPeerID := peerID != "" && pidStr == peerID
+		matchDID := did != "" && rec.DID == did
+		matchName := name != "" && strings.Contains(strings.ToLower(rec.Name), nameLow)
+		if matchPeerID || matchDID || matchName {
+			hits = append(hits, common.SearchHit{
+				PeerID: pidStr,
+				DID:    rec.DID,
+				Name:   rec.Name,
+			})
+		}
+	}
+	return hits
+}
+
+// handleSearchPeer is the ProtocolSearchPeer handler.
+// The node opens this stream, sends a SearchPeerRequest, and reads results
+// as they stream in. The stream stays open until timeout or node closes it.
+func (ix *IndexerService) handleSearchPeer(s network.Stream) {
+	logger := oclib.GetLogger()
+	defer s.Reset()
+
+	var req common.SearchPeerRequest
+	if err := json.NewDecoder(s).Decode(&req); err != nil || req.QueryID == "" {
+		return
+	}
+
+	// streamCtx is cancelled when the node closes its end of the stream.
+	streamCtx, streamCancel := context.WithCancel(context.Background())
+	go func() {
+		// Block until the stream is reset/closed, then cancel our context.
+		buf := make([]byte, 1)
+		s.Read(buf) //nolint:errcheck — we only care about EOF/reset
+		streamCancel()
+	}()
+	defer streamCancel()
+
+	resultCh := make(chan []common.SearchHit, 16)
+	ix.pendingSearchesMu.Lock()
+	ix.pendingSearches[req.QueryID] = resultCh
+	ix.pendingSearchesMu.Unlock()
+	defer func() {
+		ix.pendingSearchesMu.Lock()
+		delete(ix.pendingSearches, req.QueryID)
+		ix.pendingSearchesMu.Unlock()
+	}()
+
+	// Check own referencedNodes immediately.
+	if hits := ix.searchReferenced(req.PeerID, req.DID, req.Name); len(hits) > 0 {
+		resultCh <- hits
+	}
+
+	// Broadcast search on GossipSub so other indexers can respond.
+	ix.publishSearchQuery(req.QueryID, req.PeerID, req.DID, req.Name)
+
+	// Stream results back to node as they arrive; reset idle timer on each result.
+	enc := json.NewEncoder(s)
+	idleTimer := time.NewTimer(searchTimeout())
+	defer idleTimer.Stop()
+	for {
+		select {
+		case hits := <-resultCh:
+			if err := enc.Encode(common.SearchPeerResult{QueryID: req.QueryID, Records: hits}); err != nil {
+				logger.Debug().Err(err).Msg("[search] stream write failed")
+				return
+			}
+			// Reset idle timeout: keep alive as long as results trickle in.
+			if !idleTimer.Stop() {
+				select {
+				case <-idleTimer.C:
+				default:
+				}
+			}
+			idleTimer.Reset(searchTimeout())
+		case <-idleTimer.C:
+			// No new result within timeout — close gracefully.
+			return
+		case <-streamCtx.Done():
+			// Node closed the stream (new search superseded this one).
+			return
+		}
+	}
+}
+
+// handleSearchPeerResponse is the ProtocolSearchPeerResponse handler.
+// Another indexer opens this stream to deliver hits for a pending queryID.
+func (ix *IndexerService) handleSearchPeerResponse(s network.Stream) {
+	defer s.Reset()
+	var result common.SearchPeerResult
+	if err := json.NewDecoder(s).Decode(&result); err != nil || result.QueryID == "" {
+		return
+	}
+	ix.pendingSearchesMu.Lock()
+	ch := ix.pendingSearches[result.QueryID]
+	ix.pendingSearchesMu.Unlock()
+	if ch != nil {
+		select {
+		case ch <- result.Records:
+		default: // channel full, drop — node may be slow
+		}
+	}
+}
+
+// publishSearchQuery broadcasts a SearchQuery on TopicSearchPeer.
+func (ix *IndexerService) publishSearchQuery(queryID, peerID, did, name string) {
+	ix.LongLivedStreamRecordedService.LongLivedPubSubService.PubsubMu.RLock()
+	topic := ix.LongLivedStreamRecordedService.LongLivedPubSubService.LongLivedPubSubs[TopicSearchPeer]
+	ix.LongLivedStreamRecordedService.LongLivedPubSubService.PubsubMu.RUnlock()
+	if topic == nil {
+		return
+	}
+	q := common.SearchQuery{
+		QueryID:   queryID,
+		PeerID:    peerID,
+		DID:       did,
+		Name:      name,
+		EmitterID: ix.Host.ID().String(),
+	}
+	b, err := json.Marshal(q)
+	if err != nil {
+		return
+	}
+	_ = topic.Publish(context.Background(), b)
+}
+
+// initSearchSubscription joins TopicSearchPeer and dispatches incoming queries.
+func (ix *IndexerService) initSearchSubscription() {
+	logger := oclib.GetLogger()
+	ix.LongLivedStreamRecordedService.LongLivedPubSubService.PubsubMu.Lock()
+	topic, err := ix.PS.Join(TopicSearchPeer)
+	if err != nil {
+		ix.LongLivedStreamRecordedService.LongLivedPubSubService.PubsubMu.Unlock()
+		logger.Err(err).Msg("[search] failed to join search topic")
+		return
+	}
+	ix.LongLivedStreamRecordedService.LongLivedPubSubService.LongLivedPubSubs[TopicSearchPeer] = topic
+	ix.LongLivedStreamRecordedService.LongLivedPubSubService.PubsubMu.Unlock()
+
+	common.SubscribeEvents(
+		ix.LongLivedStreamRecordedService.LongLivedPubSubService,
+		context.Background(),
+		TopicSearchPeer,
+		-1,
+		func(_ context.Context, q common.SearchQuery, _ string) {
+			ix.onSearchQuery(q)
+		},
+	)
+}
+
+// onSearchQuery handles an incoming GossipSub search broadcast.
+// If we have matching referencedNodes, we respond to the emitting indexer.
+func (ix *IndexerService) onSearchQuery(q common.SearchQuery) {
+	// Don't respond to our own broadcasts.
+	if q.EmitterID == ix.Host.ID().String() {
+		return
+	}
+	hits := ix.searchReferenced(q.PeerID, q.DID, q.Name)
+	if len(hits) == 0 {
+		return
+	}
+	emitterID, err := pp.Decode(q.EmitterID)
+	if err != nil {
+		return
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+	s, err := ix.Host.NewStream(ctx, emitterID, common.ProtocolSearchPeerResponse)
+	if err != nil {
+		return
+	}
+	defer s.Reset()
+	s.SetDeadline(time.Now().Add(5 * time.Second))
+	json.NewEncoder(s).Encode(common.SearchPeerResult{QueryID: q.QueryID, Records: hits})
+}

daemons/node/indexer/service.go

@@ -0,0 +1,493 @@
+package indexer
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"math/rand"
+	"oc-discovery/conf"
+	"oc-discovery/daemons/node/common"
+	"strings"
+	"sync"
+	"time"
+
+	oclib "cloud.o-forge.io/core/oc-lib"
+	dht "github.com/libp2p/go-libp2p-kad-dht"
+	pubsub "github.com/libp2p/go-libp2p-pubsub"
+	record "github.com/libp2p/go-libp2p-record"
+	"github.com/libp2p/go-libp2p/core/host"
+	pp "github.com/libp2p/go-libp2p/core/peer"
+)
+
+// dhtCacheEntry holds one indexer discovered via DHT for use in suggestion responses.
+type dhtCacheEntry struct {
+	AI       pp.AddrInfo
+	LastSeen time.Time
+}
+
+// offloadState tracks which nodes we've already proposed migration to.
+// When an indexer is overloaded (fill rate > offloadThreshold) it only sends
+// SuggestMigrate to a small batch at a time; peers that don't migrate within
+// offloadGracePeriod are moved to alreadyTried so a new batch can be picked.
+type offloadState struct {
+	inBatch     map[pp.ID]time.Time  // peer → time added to current batch
+	alreadyTried map[pp.ID]struct{}  // peers proposed to that didn't migrate
+	mu          sync.Mutex
+}
+
+const (
+	offloadThreshold   = 0.80 // fill rate above which to start offloading
+	offloadBatchSize   = 5    // max concurrent "please migrate" proposals
+	offloadGracePeriod = 3 * common.RecommendedHeartbeatInterval
+)
+
+// IndexerService manages the indexer node's state: stream records, DHT, pubsub.
+type IndexerService struct {
+	*common.LongLivedStreamRecordedService[PeerRecord]
+	PS               *pubsub.PubSub
+	DHT              *dht.IpfsDHT
+	isStrictIndexer  bool
+	mu               sync.RWMutex
+	dhtProvideCancel context.CancelFunc
+	bornAt           time.Time
+	// Passive DHT cache: refreshed every 2 min in background, used for suggestions.
+	dhtCache   []dhtCacheEntry
+	dhtCacheMu sync.RWMutex
+	// Offload state for overloaded-indexer migration proposals.
+	offload offloadState
+	// referencedNodes holds nodes that have designated this indexer as their
+	// search referent (Heartbeat.Referent=true). Used for distributed search.
+	referencedNodes   map[pp.ID]PeerRecord
+	referencedNodesMu sync.RWMutex
+	// pendingSearches maps queryID → result channel for in-flight searches.
+	pendingSearches   map[string]chan []common.SearchHit
+	pendingSearchesMu sync.Mutex
+	// behavior tracks per-node compliance (heartbeat rate, publish/get volume,
+	// identity consistency, signature failures).
+	behavior  *NodeBehaviorTracker
+	// connGuard limits new-connection bursts to protect public indexers.
+	connGuard *ConnectionRateGuard
+}
+
+// NewIndexerService creates an IndexerService.
+// If ps is nil, this is a strict indexer (no pre-existing gossip sub from a node).
+func NewIndexerService(h host.Host, ps *pubsub.PubSub, maxNode int) *IndexerService {
+	logger := oclib.GetLogger()
+	logger.Info().Msg("open indexer mode...")
+	var err error
+	ix := &IndexerService{
+		LongLivedStreamRecordedService: common.NewStreamRecordedService[PeerRecord](h, maxNode),
+		isStrictIndexer:                ps == nil,
+		referencedNodes:                map[pp.ID]PeerRecord{},
+		pendingSearches:                map[string]chan []common.SearchHit{},
+		behavior:                       newNodeBehaviorTracker(),
+		connGuard:                      newConnectionRateGuard(),
+	}
+	if ps == nil {
+		ps, err = pubsub.NewGossipSub(context.Background(), ix.Host)
+		if err != nil {
+			panic(err) // can't run your indexer without a propagation pubsub
+		}
+	}
+	ix.PS = ps
+
+	if ix.isStrictIndexer {
+		logger.Info().Msg("connect to indexers as strict indexer...")
+		common.ConnectToIndexers(h, conf.GetConfig().MinIndexer, conf.GetConfig().MaxIndexer*2)
+		logger.Info().Msg("subscribe to decentralized search flow as strict indexer...")
+		go ix.SubscribeToSearch(ix.PS, nil)
+	}
+
+	ix.LongLivedStreamRecordedService.AfterDelete = func(pid pp.ID, name, did string) {
+		// Remove behavior state for peers that are no longer connected and
+		// have no active ban — keeps memory bounded to the live node set.
+		ix.behavior.Cleanup(pid)
+	}
+
+	// AllowInbound: fired once per stream open, before any heartbeat is decoded.
+	// 1. Reject peers that are currently banned (behavioral strikes).
+	// 2. For genuinely new connections, apply the burst guard.
+	ix.AllowInbound = func(remotePeer pp.ID, isNew bool) error {
+		if ix.behavior.IsBanned(remotePeer) {
+			return errors.New("peer is banned")
+		}
+		if isNew && !ix.connGuard.Allow() {
+			return errors.New("connection rate limit exceeded, retry later")
+		}
+		return nil
+	}
+
+	// ValidateHeartbeat: fired on every heartbeat tick for an established stream.
+	// Checks heartbeat cadence — rejects if the node is sending too fast.
+	ix.ValidateHeartbeat = func(remotePeer pp.ID) error {
+		return ix.behavior.RecordHeartbeat(remotePeer)
+	}
+
+	// Parse bootstrap peers from configured indexer addresses so the DHT can
+	// find its routing table entries even in a fresh deployment.
+	var bootstrapPeers []pp.AddrInfo
+	for _, addrStr := range strings.Split(conf.GetConfig().IndexerAddresses, ",") {
+		addrStr = strings.TrimSpace(addrStr)
+		if addrStr == "" {
+			continue
+		}
+		if ad, err := pp.AddrInfoFromString(addrStr); err == nil {
+			bootstrapPeers = append(bootstrapPeers, *ad)
+		}
+	}
+	dhtOpts := []dht.Option{
+		dht.Mode(dht.ModeServer),
+		dht.ProtocolPrefix("oc"),
+		dht.Validator(record.NamespacedValidator{
+			"node": PeerRecordValidator{},
+			"name": DefaultValidator{},
+			"pid":  DefaultValidator{},
+		}),
+	}
+	if len(bootstrapPeers) > 0 {
+		dhtOpts = append(dhtOpts, dht.BootstrapPeers(bootstrapPeers...))
+	}
+	if ix.DHT, err = dht.New(context.Background(), ix.Host, dhtOpts...); err != nil {
+		logger.Info().Msg(err.Error())
+		return nil
+	}
+
+	// Make the DHT available for replenishment from other packages.
+	common.SetDiscoveryDHT(ix.DHT)
+
+	ix.bornAt = time.Now().UTC()
+	ix.offload.inBatch = make(map[pp.ID]time.Time)
+	ix.offload.alreadyTried = make(map[pp.ID]struct{})
+	ix.initNodeHandler()
+
+	// Build and send a HeartbeatResponse after each received node heartbeat.
+	// Raw metrics only — no pre-cooked score. Node computes the score itself.
+	ix.BuildHeartbeatResponse = func(remotePeer pp.ID, need int, challenges []string, challengeDID string, referent bool) *common.HeartbeatResponse {
+		ix.StreamMU.RLock()
+		peerCount := len(ix.StreamRecords[common.ProtocolHeartbeat])
+		// Collect lastSeen per active peer for challenge responses.
+		type peerMeta struct {
+			found    bool
+			lastSeen time.Time
+		}
+		peerLookup := make(map[string]peerMeta, peerCount)
+		var remotePeerRecord PeerRecord
+		for pid, rec := range ix.StreamRecords[common.ProtocolHeartbeat] {
+			var ls time.Time
+			if rec.HeartbeatStream != nil && rec.HeartbeatStream.UptimeTracker != nil {
+				ls = rec.HeartbeatStream.UptimeTracker.LastSeen
+			}
+			peerLookup[pid.String()] = peerMeta{found: true, lastSeen: ls}
+			if pid == remotePeer {
+				remotePeerRecord = rec.Record
+			}
+		}
+		ix.StreamMU.RUnlock()
+
+		// Update referent designation: node marks its best-scored indexer with Referent=true.
+		ix.updateReferent(remotePeer, remotePeerRecord, referent)
+
+		maxN := ix.MaxNodesConn()
+		fillRate := 0.0
+		if maxN > 0 {
+			fillRate = float64(peerCount) / float64(maxN)
+			if fillRate > 1 {
+				fillRate = 1
+			}
+		}
+
+		resp := &common.HeartbeatResponse{
+			FillRate:  fillRate,
+			PeerCount: peerCount,
+			MaxNodes:  maxN,
+			BornAt:    ix.bornAt,
+		}
+
+		// Answer each challenged PeerID with raw found + lastSeen.
+		for _, pidStr := range challenges {
+			meta := peerLookup[pidStr] // zero value if not found
+			entry := common.ChallengeEntry{
+				PeerID:   pidStr,
+				Found:    meta.found,
+				LastSeen: meta.lastSeen,
+			}
+			resp.Challenges = append(resp.Challenges, entry)
+		}
+
+		// DHT challenge: retrieve the node's own DID to prove DHT is functional.
+		if challengeDID != "" {
+			ctx3, cancel3 := context.WithTimeout(context.Background(), 3*time.Second)
+			val, err := ix.DHT.GetValue(ctx3, "/node/"+challengeDID)
+			cancel3()
+			resp.DHTFound = err == nil
+			if err == nil {
+				resp.DHTPayload = json.RawMessage(val)
+			}
+		}
+
+		// Random sample of connected nodes as witnesses (up to 3).
+		// Never include the requesting peer itself — asking a node to witness
+		// itself is circular and meaningless.
+		ix.StreamMU.RLock()
+		for pidStr := range peerLookup {
+			if len(resp.Witnesses) >= 3 {
+				break
+			}
+			pid, err := pp.Decode(pidStr)
+			if err != nil || pid == remotePeer || pid == ix.Host.ID() {
+				continue
+			}
+			addrs := ix.Host.Peerstore().Addrs(pid)
+			ai := common.FilterLoopbackAddrs(pp.AddrInfo{ID: pid, Addrs: addrs})
+			if len(ai.Addrs) > 0 {
+				resp.Witnesses = append(resp.Witnesses, ai)
+			}
+		}
+		ix.StreamMU.RUnlock()
+
+		// Attach suggestions: exactly `need` entries from the DHT cache.
+		// If the indexer is overloaded (SuggestMigrate will be set below), always
+		// provide at least 1 suggestion even when need == 0, so the node has
+		// somewhere to go.
+		suggestionsNeeded := need
+		if fillRate > offloadThreshold && suggestionsNeeded < 1 {
+			suggestionsNeeded = 1
+		}
+		if suggestionsNeeded > 0 {
+			ix.dhtCacheMu.RLock()
+			// When offloading, pick from a random offset within the top N of the
+			// cache so concurrent migrations spread across multiple targets rather
+			// than all rushing to the same least-loaded indexer (thundering herd).
+			// For normal need-based suggestions the full sorted order is fine.
+			cache := ix.dhtCache
+			if fillRate > offloadThreshold && len(cache) > suggestionsNeeded {
+				const spreadWindow = 5 // sample from the top-5 least-loaded
+				window := spreadWindow
+				if window > len(cache) {
+					window = len(cache)
+				}
+				start := rand.Intn(window)
+				cache = cache[start:]
+			}
+			for _, e := range cache {
+				if len(resp.Suggestions) >= suggestionsNeeded {
+					break
+				}
+				// Never suggest the requesting peer itself or this indexer.
+				if e.AI.ID == remotePeer || e.AI.ID == h.ID() {
+					continue
+				}
+				resp.Suggestions = append(resp.Suggestions, e.AI)
+			}
+			ix.dhtCacheMu.RUnlock()
+		}
+
+		// Offload logic: when fill rate is too high, selectively ask nodes to migrate.
+		if fillRate > offloadThreshold && len(resp.Suggestions) > 0 {
+			now := time.Now()
+			ix.offload.mu.Lock()
+			// Expire stale batch entries -> move to alreadyTried.
+			for pid, addedAt := range ix.offload.inBatch {
+				if now.Sub(addedAt) > offloadGracePeriod {
+					ix.offload.alreadyTried[pid] = struct{}{}
+					delete(ix.offload.inBatch, pid)
+				}
+			}
+			// Reset alreadyTried if we've exhausted the whole pool.
+			if len(ix.offload.alreadyTried) >= peerCount {
+				ix.offload.alreadyTried = make(map[pp.ID]struct{})
+			}
+			_, tried := ix.offload.alreadyTried[remotePeer]
+			_, inBatch := ix.offload.inBatch[remotePeer]
+			if !tried {
+				if inBatch {
+					resp.SuggestMigrate = true
+				} else if len(ix.offload.inBatch) < offloadBatchSize {
+					ix.offload.inBatch[remotePeer] = now
+					resp.SuggestMigrate = true
+				}
+			}
+			ix.offload.mu.Unlock()
+		} else if fillRate <= offloadThreshold {
+			// Fill rate back to normal: reset offload state.
+			ix.offload.mu.Lock()
+			if len(ix.offload.inBatch) > 0 || len(ix.offload.alreadyTried) > 0 {
+				ix.offload.inBatch = make(map[pp.ID]time.Time)
+				ix.offload.alreadyTried = make(map[pp.ID]struct{})
+			}
+			ix.offload.mu.Unlock()
+		}
+
+		// Bootstrap: if this indexer has no indexers of its own, probe the
+		// connecting peer to check it supports ProtocolHeartbeat (i.e. it is
+		// itself an indexer). Plain nodes do not register the handler and the
+		// negotiation fails instantly — no wasted heartbeat cycle.
+		// Run in a goroutine: the probe is a short blocking stream open.
+		if len(common.Indexers.GetAddrs()) == 0 && remotePeer != h.ID() {
+			pid := remotePeer
+			go func() {
+				if !common.SupportsHeartbeat(h, pid) {
+					logger.Debug().Str("peer", pid.String()).
+						Msg("[bootstrap] inbound peer has no heartbeat handler — not an indexer, skipping")
+					return
+				}
+				addrs := h.Peerstore().Addrs(pid)
+				ai := common.FilterLoopbackAddrs(pp.AddrInfo{ID: pid, Addrs: addrs})
+				if len(ai.Addrs) == 0 {
+					return
+				}
+				key := pid.String()
+				if !common.Indexers.ExistsAddr(key) {
+					adCopy := ai
+					common.Indexers.SetAddr(key, &adCopy)
+					common.Indexers.NudgeIt()
+					logger.Info().Str("peer", key).Msg("[bootstrap] no indexers — added inbound indexer peer as candidate")
+				}
+			}()
+		}
+
+		return resp
+	}
+
+	// Advertise this indexer in the DHT so nodes can discover it.
+	fillRateFn := func() float64 {
+		ix.StreamMU.RLock()
+		n := len(ix.StreamRecords[common.ProtocolHeartbeat])
+		ix.StreamMU.RUnlock()
+		maxN := ix.MaxNodesConn()
+		if maxN <= 0 {
+			return 0
+		}
+		rate := float64(n) / float64(maxN)
+		if rate > 1 {
+			rate = 1
+		}
+		return rate
+	}
+	ix.startDHTCacheRefresh()
+	ix.startDHTProvide(fillRateFn)
+
+	return ix
+}
+
+// startDHTCacheRefresh periodically queries the DHT for peer indexers and
+// refreshes ix.dhtCache. This passive cache is used by BuildHeartbeatResponse
+// to suggest better indexers to connected nodes without any per-request cost.
+func (ix *IndexerService) startDHTCacheRefresh() {
+	ctx, cancel := context.WithCancel(context.Background())
+	// Store cancel alongside the provide cancel so Close() stops both.
+	prevCancel := ix.dhtProvideCancel
+	ix.dhtProvideCancel = func() {
+		if prevCancel != nil {
+			prevCancel()
+		}
+		cancel()
+	}
+	go func() {
+		logger := oclib.GetLogger()
+		refresh := func() {
+			if ix.DHT == nil {
+				return
+			}
+			// Fetch more than needed so SelectByFillRate can filter for diversity.
+			raw := common.DiscoverIndexersFromDHT(ix.Host, ix.DHT, 30)
+			if len(raw) == 0 {
+				return
+			}
+			// Remove self before selection.
+			filtered := raw[:0]
+			for _, ai := range raw {
+				if ai.ID != ix.Host.ID() {
+					filtered = append(filtered, ai)
+				}
+			}
+			// SelectByFillRate applies /24 subnet diversity and fill-rate weighting.
+			// Fill rates are unknown at this stage (nil map) so all peers get
+			// the neutral prior f=0.5 — diversity filtering still applies.
+			selected := common.SelectByFillRate(filtered, nil, 10)
+			now := time.Now()
+			ix.dhtCacheMu.Lock()
+			ix.dhtCache = ix.dhtCache[:0]
+			for _, ai := range selected {
+				ix.dhtCache = append(ix.dhtCache, dhtCacheEntry{AI: ai, LastSeen: now})
+			}
+			ix.dhtCacheMu.Unlock()
+			logger.Info().Int("cached", len(selected)).Msg("[dht] indexer suggestion cache refreshed")
+		}
+		// Initial delay: let the DHT routing table warm up first.
+		select {
+		case <-time.After(30 * time.Second):
+		case <-ctx.Done():
+			return
+		}
+		refresh()
+		t := time.NewTicker(2 * time.Minute)
+		defer t.Stop()
+		for {
+			select {
+			case <-t.C:
+				refresh()
+			case <-ctx.Done():
+				return
+			}
+		}
+	}()
+}
+
+// startDHTProvide bootstraps the DHT and starts a goroutine that periodically
+// advertises this indexer under the well-known provider key.
+func (ix *IndexerService) startDHTProvide(fillRateFn func() float64) {
+	ctx, cancel := context.WithCancel(context.Background())
+	ix.dhtProvideCancel = cancel
+	go func() {
+		logger := oclib.GetLogger()
+		// Wait until a routable (non-loopback) address is available.
+		for i := 0; i < 12; i++ {
+			addrs := ix.Host.Addrs()
+			if len(addrs) > 0 && !strings.Contains(addrs[len(addrs)-1].String(), "127.0.0.1") {
+				break
+			}
+			select {
+			case <-ctx.Done():
+				return
+			case <-time.After(5 * time.Second):
+			}
+		}
+		if err := ix.DHT.Bootstrap(ctx); err != nil {
+			logger.Warn().Err(err).Msg("[dht] bootstrap failed")
+		}
+		provide := func() {
+			pCtx, pCancel := context.WithTimeout(ctx, 30*time.Second)
+			defer pCancel()
+			if err := ix.DHT.Provide(pCtx, common.IndexerCID(), true); err != nil {
+				logger.Warn().Err(err).Msg("[dht] Provide failed")
+			} else {
+				logger.Info().Float64("fill_rate", fillRateFn()).Msg("[dht] indexer advertised in DHT")
+			}
+		}
+		provide()
+		t := time.NewTicker(common.RecommendedHeartbeatInterval)
+		defer t.Stop()
+		for {
+			select {
+			case <-t.C:
+				provide()
+			case <-ctx.Done():
+				return
+			}
+		}
+	}()
+}
+
+func (ix *IndexerService) Close() {
+	if ix.dhtProvideCancel != nil {
+		ix.dhtProvideCancel()
+	}
+	ix.DHT.Close()
+	ix.PS.UnregisterTopicValidator(common.TopicPubSubSearch)
+	for _, s := range ix.StreamRecords {
+		for _, ss := range s {
+			ss.HeartbeatStream.Stream.Close()
+		}
+	}
+}

daemons/node/indexer/validator.go

@@ -0,0 +1,64 @@
+package indexer
+
+import (
+	"encoding/json"
+	"errors"
+	"time"
+)
+
+type DefaultValidator struct{}
+
+func (v DefaultValidator) Validate(key string, value []byte) error {
+	return nil
+}
+
+func (v DefaultValidator) Select(key string, values [][]byte) (int, error) {
+	return 0, nil
+}
+
+type PeerRecordValidator struct{}
+
+func (v PeerRecordValidator) Validate(key string, value []byte) error {
+
+	var rec PeerRecord
+	if err := json.Unmarshal(value, &rec); err != nil {
+		return errors.New("invalid json")
+	}
+
+	// PeerID must exist
+	if rec.PeerID == "" {
+		return errors.New("missing peerID")
+	}
+
+	// Expiry check
+	if rec.ExpiryDate.Before(time.Now().UTC()) {
+		return errors.New("record expired")
+	}
+
+	// Signature verification
+	if _, err := rec.Verify(); err != nil {
+		return errors.New("invalid signature")
+	}
+
+	return nil
+}
+
+func (v PeerRecordValidator) Select(key string, values [][]byte) (int, error) {
+
+	var newest time.Time
+	index := 0
+
+	for i, val := range values {
+		var rec PeerRecord
+		if err := json.Unmarshal(val, &rec); err != nil {
+			continue
+		}
+
+		if rec.ExpiryDate.After(newest) {
+			newest = rec.ExpiryDate
+			index = i
+		}
+	}
+
+	return index, nil
+}

daemons/node/nats.go

@@ -0,0 +1,223 @@
+package node
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"oc-discovery/daemons/node/common"
+	"oc-discovery/daemons/node/stream"
+
+	oclib "cloud.o-forge.io/core/oc-lib"
+	"cloud.o-forge.io/core/oc-lib/config"
+	"cloud.o-forge.io/core/oc-lib/models/peer"
+	"cloud.o-forge.io/core/oc-lib/tools"
+	pp "github.com/libp2p/go-libp2p/core/peer"
+	"github.com/libp2p/go-libp2p/core/protocol"
+)
+
+type configPayload struct {
+	PeerID string `json:"source_peer_id"`
+}
+
+type executionConsidersPayload struct {
+	PeerIDs []string `json:"peer_ids"`
+}
+
+func ListenNATS(n *Node) {
+	tools.NewNATSCaller().ListenNats(map[tools.NATSMethod]func(tools.NATSResponse){
+		/*tools.VERIFY_RESOURCE: func(resp tools.NATSResponse) {
+			if resp.FromApp == config.GetAppName() {
+				return
+			}
+			if res, err := resources.ToResource(resp.Datatype.EnumIndex(), resp.Payload); err == nil {
+				access := oclib.NewRequestAdmin(oclib.LibDataEnum(oclib.PEER), nil)
+				p := access.LoadOne(res.GetCreatorID())
+				realP := p.ToPeer()
+				if realP == nil {
+					return
+				} else if realP.Relation == peer.SELF {
+					pubKey, err := common.PubKeyFromString(realP.PublicKey) // extract pubkey from pubkey str
+					if err != nil {
+						return
+					}
+					ok, _ := pubKey.Verify(resp.Payload, res.GetSignature())
+					if b, err := json.Marshal(stream.Verify{
+						IsVerified: ok,
+					}); err == nil {
+						tools.NewNATSCaller().SetNATSPub(tools.VERIFY_RESOURCE, tools.NATSResponse{
+							FromApp: "oc-discovery",
+							Method:  int(tools.VERIFY_RESOURCE),
+							Payload: b,
+						})
+					}
+				} else if realP.Relation != peer.BLACKLIST {
+					n.StreamService.PublishVerifyResources(&resp.Datatype, resp.User, realP.PeerID, resp.Payload)
+				}
+			}
+		},*/
+		tools.CREATE_RESOURCE: func(resp tools.NATSResponse) {
+			if resp.FromApp == config.GetAppName() && resp.Datatype != tools.PEER && resp.Datatype != tools.WORKFLOW {
+				return
+			}
+			logger := oclib.GetLogger()
+			m := map[string]interface{}{}
+			err := json.Unmarshal(resp.Payload, &m)
+			if err != nil {
+				logger.Err(err)
+				return
+			}
+			p := &peer.Peer{}
+			p = p.Deserialize(m, p).(*peer.Peer)
+
+			ad, err := pp.AddrInfoFromString(p.StreamAddress)
+			if err != nil {
+				return
+			}
+			// Non-partner: close any existing streams for this peer.
+			if p.Relation != peer.PARTNER {
+				n.StreamService.Mu.Lock()
+				defer n.StreamService.Mu.Unlock()
+				ps := common.ProtocolStream{}
+				for proto, s := range n.StreamService.Streams {
+					m := map[pp.ID]*common.Stream{}
+					for k := range s {
+						if ad.ID != k {
+							m[k] = s[k]
+						} else {
+							s[k].Stream.Close()
+						}
+					}
+					ps[proto] = m
+				}
+				n.StreamService.Streams = ps
+			}
+
+		},
+		tools.PROPALGATION_EVENT: func(resp tools.NATSResponse) {
+			fmt.Println("PROPALGATION")
+			if resp.FromApp == config.GetAppName() {
+				return
+			}
+			var propalgation tools.PropalgationMessage
+			err := json.Unmarshal(resp.Payload, &propalgation)
+			var dt *tools.DataType
+			if propalgation.DataType > 0 {
+				dtt := tools.DataType(propalgation.DataType)
+				dt = &dtt
+			}
+			fmt.Println("PROPALGATION ACT", propalgation.Action, propalgation.Action == tools.PB_CREATE, err)
+			if err == nil {
+				switch propalgation.Action {
+				case tools.PB_ADMIRALTY_CONFIG, tools.PB_MINIO_CONFIG:
+					var m configPayload
+					var proto protocol.ID = stream.ProtocolAdmiraltyConfigResource
+					if propalgation.Action == tools.PB_MINIO_CONFIG {
+						proto = stream.ProtocolMinioConfigResource
+					}
+					if err := json.Unmarshal(resp.Payload, &m); err == nil {
+						peers, _ := n.GetPeerRecord(context.Background(), m.PeerID)
+						for _, p := range peers {
+							n.StreamService.PublishCommon(&resp.Datatype, resp.User,
+								p.PeerID, proto, resp.Payload)
+						}
+					}
+				case tools.PB_CREATE, tools.PB_UPDATE, tools.PB_DELETE:
+					fmt.Println(propalgation.Action, dt, resp.User, propalgation.Payload)
+					fmt.Println(n.StreamService.ToPartnerPublishEvent(
+						context.Background(),
+						propalgation.Action,
+						dt, resp.User,
+						propalgation.Payload,
+					))
+				case tools.PB_CONSIDERS:
+					switch resp.Datatype {
+					case tools.BOOKING, tools.PURCHASE_RESOURCE, tools.WORKFLOW_EXECUTION:
+						var m executionConsidersPayload
+						if err := json.Unmarshal(resp.Payload, &m); err == nil {
+							for _, p := range m.PeerIDs {
+								peers, _ := n.GetPeerRecord(context.Background(), p)
+								for _, pp := range peers {
+									n.StreamService.PublishCommon(&resp.Datatype, resp.User,
+										pp.PeerID, stream.ProtocolConsidersResource, resp.Payload)
+								}
+							}
+						}
+					default:
+						// minio / admiralty config considers — route back to OriginID.
+						var m struct {
+							OriginID string `json:"origin_id"`
+						}
+						if err := json.Unmarshal(propalgation.Payload, &m); err == nil && m.OriginID != "" {
+							peers, _ := n.GetPeerRecord(context.Background(), m.OriginID)
+							for _, p := range peers {
+								n.StreamService.PublishCommon(nil, resp.User,
+									p.PeerID, stream.ProtocolConsidersResource, propalgation.Payload)
+							}
+						}
+					}
+				case tools.PB_PLANNER:
+					m := map[string]interface{}{}
+					if err := json.Unmarshal(resp.Payload, &m); err == nil {
+						b := []byte{}
+						if len(m) > 1 {
+							b = resp.Payload
+						}
+						if m["peer_id"] == nil { // send to every active stream
+							n.StreamService.Mu.Lock()
+							if n.StreamService.Streams[stream.ProtocolSendPlanner] != nil {
+								for pid := range n.StreamService.Streams[stream.ProtocolSendPlanner] { // send Planner can be long lived - it's a conn
+									n.StreamService.PublishCommon(nil, resp.User, pid.String(), stream.ProtocolSendPlanner, b)
+								}
+							}
+						} else {
+							n.StreamService.PublishCommon(nil, resp.User, fmt.Sprintf("%v", m["peer_id"]), stream.ProtocolSendPlanner, b)
+						}
+						n.StreamService.Mu.Unlock()
+					}
+				case tools.PB_CLOSE_PLANNER:
+					m := map[string]interface{}{}
+					if err := json.Unmarshal(resp.Payload, &m); err == nil {
+						n.StreamService.Mu.Lock()
+						if pid, err := pp.Decode(fmt.Sprintf("%v", m["peer_id"])); err == nil {
+							if n.StreamService.Streams[stream.ProtocolSendPlanner] != nil && n.StreamService.Streams[stream.ProtocolSendPlanner][pid] != nil {
+								n.StreamService.Streams[stream.ProtocolSendPlanner][pid].Stream.Close()
+								delete(n.StreamService.Streams[stream.ProtocolSendPlanner], pid)
+							}
+						}
+						n.StreamService.Mu.Unlock()
+					}
+				case tools.PB_SEARCH:
+					if propalgation.DataType == int(tools.PEER) {
+						m := map[string]interface{}{}
+						if err := json.Unmarshal(propalgation.Payload, &m); err == nil {
+							needle := fmt.Sprintf("%v", m["search"])
+							userKey := resp.User
+							go n.SearchPeerRecord(userKey, needle, func(hit common.SearchHit) {
+								if b, err := json.Marshal(hit); err == nil {
+									tools.NewNATSCaller().SetNATSPub(tools.SEARCH_EVENT, tools.NATSResponse{
+										FromApp:  "oc-discovery",
+										Datatype: tools.DataType(tools.PEER),
+										Method:   int(tools.SEARCH_EVENT),
+										Payload:  b,
+									})
+								}
+							})
+						}
+
+					} else {
+						m := map[string]interface{}{}
+						if err := json.Unmarshal(propalgation.Payload, &m); err == nil {
+							n.PubSubService.SearchPublishEvent(
+								context.Background(),
+								dt,
+								fmt.Sprintf("%v", m["type"]),
+								resp.User,
+								fmt.Sprintf("%v", m["search"]),
+							)
+						}
+					}
+				}
+			}
+		},
+	})
+}

daemons/node/node.go

@@ -0,0 +1,414 @@
+package node
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"oc-discovery/conf"
+	"oc-discovery/daemons/node/common"
+	"oc-discovery/daemons/node/indexer"
+	"oc-discovery/daemons/node/pubsub"
+	"oc-discovery/daemons/node/stream"
+	"sync"
+	"time"
+
+	oclib "cloud.o-forge.io/core/oc-lib"
+	"cloud.o-forge.io/core/oc-lib/dbs"
+	"cloud.o-forge.io/core/oc-lib/models/peer"
+	"cloud.o-forge.io/core/oc-lib/tools"
+	"github.com/google/uuid"
+	"github.com/libp2p/go-libp2p"
+	pubsubs "github.com/libp2p/go-libp2p-pubsub"
+	"github.com/libp2p/go-libp2p/core/crypto"
+	"github.com/libp2p/go-libp2p/core/network"
+	pp "github.com/libp2p/go-libp2p/core/peer"
+	"github.com/libp2p/go-libp2p/core/protocol"
+	"github.com/libp2p/go-libp2p/p2p/security/noise"
+)
+
+// activeSearch tracks an in-flight distributed peer search for one user.
+type activeSearch struct {
+	queryID string
+	cancel  context.CancelFunc
+}
+
+type Node struct {
+	*common.LongLivedStreamRecordedService[interface{}] // change type of stream
+	PS                                                  *pubsubs.PubSub
+	IndexerService                                      *indexer.IndexerService
+	PubSubService                                       *pubsub.PubSubService
+	StreamService                                       *stream.StreamService
+	PeerID                                              pp.ID
+	isIndexer                                           bool
+	peerRecord                                          *indexer.PeerRecord
+
+	// activeSearches: one streaming search per user; new search cancels previous.
+	activeSearchesMu sync.Mutex
+	activeSearches   map[string]*activeSearch
+
+	Mu sync.RWMutex
+}
+
+func InitNode(isNode bool, isIndexer bool) (*Node, error) {
+	if !isNode && !isIndexer {
+		return nil, errors.New("wait... what ? your node need to  at least something. Retry we can't be friend in that case")
+	}
+	logger := oclib.GetLogger()
+	logger.Info().Msg("retrieving private key...")
+	priv, err := tools.LoadKeyFromFilePrivate() // your node private key
+	if err != nil {
+		return nil, err
+	}
+	logger.Info().Msg("retrieving psk file...")
+	psk, err := common.LoadPSKFromFile() // network common private Network. Public OC PSK is Public Network
+	if err != nil {
+		return nil, nil
+	}
+	logger.Info().Msg("open a host...")
+	gater := newOCConnectionGater(nil) // host set below after creation
+	h, err := libp2p.New(
+		libp2p.PrivateNetwork(psk),
+		libp2p.Identity(priv),
+		libp2p.Security(noise.ID, noise.New),
+		libp2p.ListenAddrStrings(
+			fmt.Sprintf("/ip4/0.0.0.0/tcp/%d", conf.GetConfig().NodeEndpointPort),
+		),
+		libp2p.ConnectionGater(gater),
+	)
+	gater.host = h // wire host back into gater now that it exists
+	logger.Info().Msg("Host open on " + h.ID().String())
+	if err != nil {
+		return nil, errors.New("no host no node")
+	}
+	node := &Node{
+		PeerID:                         h.ID(),
+		isIndexer:                      isIndexer,
+		LongLivedStreamRecordedService: common.NewStreamRecordedService[interface{}](h, 1000),
+		activeSearches:                 map[string]*activeSearch{},
+	}
+	// Register the bandwidth probe handler so any peer measuring this node's
+	// throughput can open a dedicated probe stream and read the echo.
+	h.SetStreamHandler(common.ProtocolBandwidthProbe, common.HandleBandwidthProbe)
+	// Register the witness query handler so peers can ask this node's view of indexers.
+	h.SetStreamHandler(common.ProtocolWitnessQuery, func(s network.Stream) {
+		common.HandleWitnessQuery(h, s)
+	})
+	var ps *pubsubs.PubSub
+	if isNode {
+		logger.Info().Msg("generate opencloud node...")
+		ps, err = pubsubs.NewGossipSub(context.Background(), node.Host)
+		if err != nil {
+			panic(err) // can't run your node without a propalgation pubsub, of state of node.
+		}
+		node.PS = ps
+		// buildRecord returns a fresh signed PeerRecord as JSON, embedded in each
+		// heartbeat so the receiving indexer can republish it to the DHT directly.
+		// peerRecord is nil until claimInfo runs, so the first ~20s heartbeats carry
+		// no record — that's fine, claimInfo publishes once synchronously at startup.
+		buildRecord := func() json.RawMessage {
+			if node.peerRecord == nil {
+				return nil
+			}
+			priv, err := tools.LoadKeyFromFilePrivate()
+			if err != nil {
+				return nil
+			}
+			fresh := *node.peerRecord
+			fresh.PeerRecordPayload.ExpiryDate = time.Now().UTC().Add(2 * time.Minute)
+			payload, _ := json.Marshal(fresh.PeerRecordPayload)
+			fresh.Signature, err = priv.Sign(payload)
+			if err != nil {
+				return nil
+			}
+			b, _ := json.Marshal(fresh)
+			return json.RawMessage(b)
+		}
+		logger.Info().Msg("connect to indexers...")
+		common.ConnectToIndexers(node.Host, conf.GetConfig().MinIndexer, conf.GetConfig().MaxIndexer, buildRecord)
+		logger.Info().Msg("claims my node...")
+		if _, err := node.claimInfo(conf.GetConfig().Name, conf.GetConfig().Hostname); err != nil {
+			panic(err)
+		}
+		logger.Info().Msg("run garbage collector...")
+		node.StartGC(30 * time.Second)
+
+		if node.StreamService, err = stream.InitStream(context.Background(), node.Host, node.PeerID, 1000, node); err != nil {
+			panic(err)
+		}
+
+		if node.PubSubService, err = pubsub.InitPubSub(context.Background(), node.Host, node.PS, node, node.StreamService); err != nil {
+			panic(err)
+		}
+		f := func(ctx context.Context, evt common.Event, topic string) {
+			m := map[string]interface{}{}
+			err := json.Unmarshal(evt.Payload, &m)
+			if err != nil || evt.From == node.PeerID.String() {
+				return
+			}
+			if p, err := node.GetPeerRecord(ctx, evt.From); err == nil && len(p) > 0 && m["search"] != nil {
+				node.StreamService.SendResponse(p[0], &evt, fmt.Sprintf("%v", m["search"]))
+			}
+		}
+		logger.Info().Msg("subscribe to decentralized search flow...")
+		node.SubscribeToSearch(node.PS, &f)
+		logger.Info().Msg("connect to NATS")
+		go ListenNATS(node)
+		logger.Info().Msg("Node is actually running.")
+	}
+	if isIndexer {
+		logger.Info().Msg("generate opencloud indexer...")
+		node.IndexerService = indexer.NewIndexerService(node.Host, ps, 500)
+	}
+	return node, nil
+}
+
+func (d *Node) Close() {
+	if d.isIndexer && d.IndexerService != nil {
+		d.IndexerService.Close()
+	}
+	d.PubSubService.Close()
+	d.StreamService.Close()
+	d.Host.Close()
+}
+
+func (d *Node) publishPeerRecord(
+	rec *indexer.PeerRecord,
+) error {
+	priv, err := tools.LoadKeyFromFilePrivate() // your node private key
+	if err != nil {
+		return err
+	}
+
+	for _, ad := range common.Indexers.GetAddrs() {
+		var err error
+		if common.Indexers.Streams, err = common.TempStream(d.Host, *ad.Info, common.ProtocolPublish, "", common.Indexers.Streams, map[protocol.ID]*common.ProtocolInfo{},
+			&common.Indexers.MuStream); err != nil {
+			continue
+		}
+		stream := common.Indexers.Streams.GetPerID(common.ProtocolPublish, ad.Info.ID)
+		base := indexer.PeerRecordPayload{
+			Name:       rec.Name,
+			DID:        rec.DID,
+			PubKey:     rec.PubKey,
+			ExpiryDate: time.Now().UTC().Add(2 * time.Minute),
+		}
+		payload, _ := json.Marshal(base)
+		rec.PeerRecordPayload = base
+		rec.Signature, err = priv.Sign(payload)
+		if err := json.NewEncoder(stream.Stream).Encode(&rec); err != nil { // then publish on stream
+			return err
+		}
+	}
+	return nil
+}
+
+// SearchPeerRecord starts a distributed peer search via ProtocolSearchPeer.
+// userKey identifies the requesting user — a new call cancels any previous
+// search for the same user. Results are pushed to onResult as they arrive.
+// The function returns when the search stream closes (idle timeout or indexer unreachable).
+func (d *Node) SearchPeerRecord(userKey, needle string, onResult func(common.SearchHit)) {
+	logger := oclib.GetLogger()
+
+	ctx, cancel := context.WithCancel(context.Background())
+
+	d.activeSearchesMu.Lock()
+	if prev, ok := d.activeSearches[userKey]; ok {
+		prev.cancel()
+	}
+	queryID := uuid.New().String()
+	d.activeSearches[userKey] = &activeSearch{queryID: queryID, cancel: cancel}
+	d.activeSearchesMu.Unlock()
+
+	defer func() {
+		cancel()
+		d.activeSearchesMu.Lock()
+		if cur, ok := d.activeSearches[userKey]; ok && cur.queryID == queryID {
+			delete(d.activeSearches, userKey)
+		}
+		d.activeSearchesMu.Unlock()
+	}()
+
+	req := common.SearchPeerRequest{QueryID: queryID}
+	if pid, err := pp.Decode(needle); err == nil {
+		req.PeerID = pid.String()
+	} else if _, err := uuid.Parse(needle); err == nil {
+		req.DID = needle
+	} else {
+		req.Name = needle
+	}
+
+	// Try indexers in pool order until one accepts the stream.
+	for _, ad := range common.Indexers.GetAddrs() {
+		if ad.Info == nil {
+			continue
+		}
+		dialCtx, dialCancel := context.WithTimeout(ctx, 5*time.Second)
+		s, err := d.Host.NewStream(dialCtx, ad.Info.ID, common.ProtocolSearchPeer)
+		dialCancel()
+		if err != nil {
+			continue
+		}
+		if err := json.NewEncoder(s).Encode(req); err != nil {
+			s.Reset()
+			continue
+		}
+		dec := json.NewDecoder(s)
+		for {
+			var result common.SearchPeerResult
+			if err := dec.Decode(&result); err != nil {
+				break
+			}
+			if result.QueryID != queryID {
+				continue // stale response from a previous query
+			}
+			for _, hit := range result.Records {
+				onResult(hit)
+			}
+		}
+		s.Reset()
+		return
+	}
+	logger.Warn().Str("user", userKey).Msg("[search] no reachable indexer for peer search")
+}
+
+func (d *Node) GetPeerRecord(
+	ctx context.Context,
+	pidOrdid string,
+) ([]*peer.Peer, error) {
+	var err error
+	var info map[string]indexer.PeerRecord
+	// Build the GetValue request: if pidOrdid is neither a UUID DID nor a libp2p
+	// PeerID, treat it as a human-readable name and let the indexer resolve it.
+	// GetPeerRecord resolves by PeerID or DID only.
+	// Name-based search goes through SearchPeerRecord (ProtocolSearchPeer).
+	getReq := indexer.GetValue{Key: pidOrdid}
+	if pidR, pidErr := pp.Decode(pidOrdid); pidErr == nil {
+		getReq.PeerID = pidR.String()
+		getReq.Key = ""
+	}
+	for _, ad := range common.Indexers.GetAddrs() {
+		if common.Indexers.Streams, err = common.TempStream(d.Host, *ad.Info, common.ProtocolGet, "",
+			common.Indexers.Streams, map[protocol.ID]*common.ProtocolInfo{}, &common.Indexers.MuStream); err != nil {
+			continue
+		}
+		stream := common.Indexers.Streams.GetPerID(common.ProtocolGet, ad.Info.ID)
+		if err := json.NewEncoder(stream.Stream).Encode(getReq); err != nil {
+			continue
+		}
+		var resp indexer.GetResponse
+		if err := json.NewDecoder(stream.Stream).Decode(&resp); err != nil {
+			continue
+		}
+		if resp.Found {
+			info = resp.Records
+		}
+		break
+	}
+	var ps []*peer.Peer
+	for _, pr := range info {
+		if pk, err := pr.Verify(); err != nil {
+			return nil, err
+		} else if _, p, err := pr.ExtractPeer(d.PeerID.String(), pr.PeerID, pk); err != nil {
+			return nil, err
+		} else {
+			ps = append(ps, p)
+		}
+	}
+
+	return ps, err
+}
+
+func (d *Node) claimInfo(
+	name string,
+	endPoint string, // TODO : endpoint is not necesserry StreamAddress
+) (*peer.Peer, error) {
+	if endPoint == "" {
+		return nil, errors.New("no endpoint found for peer")
+	}
+	did := uuid.New().String()
+
+	peers := oclib.NewRequestAdmin(oclib.LibDataEnum(oclib.PEER), nil).Search(&dbs.Filters{
+		And: map[string][]dbs.Filter{ // search by name if no filters are provided
+			"peer_id": {{Operator: dbs.EQUAL.String(), Value: d.Host.ID().String()}},
+		},
+	}, "", false)
+	if len(peers.Data) > 0 {
+		did = peers.Data[0].GetID() // if already existing set up did as made
+	}
+	priv, err := tools.LoadKeyFromFilePrivate()
+	if err != nil {
+		return nil, err
+	}
+	pub, err := tools.LoadKeyFromFilePublic()
+	if err != nil {
+		return nil, err
+	}
+	pubBytes, err := crypto.MarshalPublicKey(pub)
+	if err != nil {
+		return nil, err
+	}
+
+	now := time.Now().UTC()
+	expiry := now.Add(150 * time.Second)
+
+	pRec := indexer.PeerRecordPayload{
+		Name:       name,
+		DID:        did, // REAL PEER ID
+		PubKey:     pubBytes,
+		ExpiryDate: expiry,
+	}
+	d.PeerID = d.Host.ID()
+	payload, _ := json.Marshal(pRec)
+
+	rec := &indexer.PeerRecord{
+		PeerRecordPayload: pRec,
+	}
+	rec.Signature, err = priv.Sign(payload)
+	if err != nil {
+		return nil, err
+	}
+	rec.PeerID = d.Host.ID().String()
+	rec.APIUrl = endPoint
+	rec.StreamAddress = "/ip4/" + conf.GetConfig().Hostname + "/tcp/" + fmt.Sprintf("%v", conf.GetConfig().NodeEndpointPort) + "/p2p/" + rec.PeerID
+	rec.NATSAddress = oclib.GetConfig().NATSUrl
+	rec.WalletAddress = "my-wallet"
+
+	if err := d.publishPeerRecord(rec); err != nil {
+		return nil, err
+	}
+	d.peerRecord = rec
+	if _, err := rec.Verify(); err != nil {
+		return nil, err
+	} else {
+		_, p, err := rec.ExtractPeer(did, did, pub)
+		b, err := json.Marshal(p)
+		if err != nil {
+			return p, err
+		}
+		go tools.NewNATSCaller().SetNATSPub(tools.CREATE_RESOURCE, tools.NATSResponse{
+			FromApp:    "oc-discovery",
+			Datatype:   tools.PEER,
+			Method:     int(tools.CREATE_RESOURCE),
+			SearchAttr: "peer_id",
+			Payload:    b,
+		})
+		return p, err
+	}
+}
+
+/*
+TODO:
+- Le booking est un flow neuf décentralisé :
+ On check on attend une réponse, on valide, il passe par discovery, on relais.
+- Le shared workspace est une affaire de décentralisation,
+	on communique avec les shared les mouvements
+- Un shared remplace la notion de partnership à l'échelle de partnershipping
+	-> quand on share un workspace on devient partenaire temporaire
+		qu'on le soit originellement ou non.
+	-> on a alors les mêmes privilèges.
+- Les orchestrations admiralty ont le même fonctionnement.
+	Un evenement provoque alors une création de clé de service.
+
+On doit pouvoir crud avec verification de signature un DBobject.
+*/

daemons/node/pubsub/publish.go

@@ -0,0 +1,61 @@
+package pubsub
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"oc-discovery/daemons/node/common"
+	"oc-discovery/daemons/node/stream"
+	"oc-discovery/models"
+
+	"cloud.o-forge.io/core/oc-lib/dbs"
+	"cloud.o-forge.io/core/oc-lib/models/peer"
+	"cloud.o-forge.io/core/oc-lib/tools"
+)
+
+func (ps *PubSubService) SearchPublishEvent(
+	ctx context.Context, dt *tools.DataType, typ string, user string, search string) error {
+	b, err := json.Marshal(map[string]string{"search": search})
+	if err != nil {
+		return err
+	}
+	switch typ {
+	case "known": // define Search Strategy
+		return ps.StreamService.PublishesCommon(dt, user, nil, b, stream.ProtocolSearchResource) //if partners focus only them*/
+	case "partner": // define Search Strategy
+		return ps.StreamService.PublishesCommon(dt, user, &dbs.Filters{ // filter by like name, short_description, description, owner, url if no filters are provided
+			And: map[string][]dbs.Filter{
+				"relation": {{Operator: dbs.EQUAL.String(), Value: peer.PARTNER}},
+			},
+		}, b, stream.ProtocolSearchResource)
+	case "all": // Gossip PubSub
+		b, err := json.Marshal(map[string]string{"search": search})
+		if err != nil {
+			return err
+		}
+		return ps.publishEvent(ctx, dt, tools.PB_SEARCH, common.TopicPubSubSearch, user, b)
+	default:
+		return errors.New("no type of research found")
+	}
+}
+
+func (ps *PubSubService) publishEvent(
+	ctx context.Context, dt *tools.DataType, action tools.PubSubAction, topicName string, user string, payload []byte,
+) error {
+	priv, err := tools.LoadKeyFromFilePrivate()
+	if err != nil {
+		return err
+	}
+	msg, _ := json.Marshal(models.NewEvent(action.String(), ps.Host.ID().String(), dt, user, payload, priv))
+	topic := ps.Node.GetPubSub(topicName)
+	if topic == nil {
+		topic, err = ps.PS.Join(topicName)
+		if err != nil {
+			return err
+		}
+	}
+	return topic.Publish(ctx, msg)
+}
+
+// TODO REVIEW PUBLISHING + ADD SEARCH ON PUBLIC : YES
+// TODO : Search should verify DataType

daemons/node/pubsub/service.go

@@ -0,0 +1,32 @@
+package pubsub
+
+import (
+	"context"
+	"oc-discovery/daemons/node/common"
+	"oc-discovery/daemons/node/stream"
+	"sync"
+
+	pubsub "github.com/libp2p/go-libp2p-pubsub"
+	"github.com/libp2p/go-libp2p/core/host"
+)
+
+type PubSubService struct {
+	Node          common.DiscoveryPeer
+	Host          host.Host
+	PS            *pubsub.PubSub
+	StreamService *stream.StreamService
+	Subscription  []string
+	mutex         sync.RWMutex
+}
+
+func InitPubSub(ctx context.Context, h host.Host, ps *pubsub.PubSub, node common.DiscoveryPeer, streamService *stream.StreamService) (*PubSubService, error) {
+	return &PubSubService{
+		Host:          h,
+		Node:          node,
+		StreamService: streamService,
+		PS:            ps,
+	}, nil
+}
+
+func (ix *PubSubService) Close() {
+}

daemons/node/stream/handler.go

@@ -0,0 +1,228 @@
+package stream
+
+import (
+	"context"
+	"crypto/subtle"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"oc-discovery/daemons/node/common"
+
+	oclib "cloud.o-forge.io/core/oc-lib"
+	"cloud.o-forge.io/core/oc-lib/dbs"
+	"cloud.o-forge.io/core/oc-lib/models/booking/planner"
+	"cloud.o-forge.io/core/oc-lib/models/peer"
+	"cloud.o-forge.io/core/oc-lib/models/resources"
+	"cloud.o-forge.io/core/oc-lib/tools"
+)
+
+type Verify struct {
+	IsVerified bool `json:"is_verified"`
+}
+
+func (ps *StreamService) handleEvent(protocol string, evt *common.Event) error {
+	fmt.Println("handleEvent")
+	ps.handleEventFromPartner(evt, protocol)
+	/*if protocol == ProtocolVerifyResource {
+		if evt.DataType == -1 {
+			tools.NewNATSCaller().SetNATSPub(tools.VERIFY_RESOURCE, tools.NATSResponse{
+				FromApp: "oc-discovery",
+				Method:  int(tools.VERIFY_RESOURCE),
+				Payload: evt.Payload,
+			})
+		} else if err := ps.verifyResponse(evt); err != nil {
+			return err
+		}
+	}*/
+	if protocol == ProtocolSendPlanner {
+		if err := ps.sendPlanner(evt); err != nil {
+			return err
+		}
+	}
+	if protocol == ProtocolSearchResource && evt.DataType > -1 {
+		if err := ps.retrieveResponse(evt); err != nil {
+			return err
+		}
+	}
+	if protocol == ProtocolConsidersResource {
+		if err := ps.pass(evt, tools.PB_CONSIDERS); err != nil {
+			return err
+		}
+	}
+	if protocol == ProtocolAdmiraltyConfigResource {
+		if err := ps.pass(evt, tools.PB_ADMIRALTY_CONFIG); err != nil {
+			return err
+		}
+	}
+	if protocol == ProtocolMinioConfigResource {
+		if err := ps.pass(evt, tools.PB_MINIO_CONFIG); err != nil {
+			return err
+		}
+	}
+	return errors.New("no action authorized available : " + protocol)
+}
+
+func (abs *StreamService) verifyResponse(event *common.Event) error { //
+	res, err := resources.ToResource(int(event.DataType), event.Payload)
+	if err != nil || res == nil {
+		return nil
+	}
+	verify := Verify{
+		IsVerified: false,
+	}
+	access := oclib.NewRequestAdmin(oclib.LibDataEnum(event.DataType), nil)
+	data := access.LoadOne(res.GetID())
+	if data.Err == "" && data.Data != nil {
+		if b, err := json.Marshal(data.Data); err == nil {
+			if res2, err := resources.ToResource(int(event.DataType), b); err == nil {
+				verify.IsVerified = subtle.ConstantTimeCompare(res.GetSignature(), res2.GetSignature()) == 1
+			}
+		}
+	}
+	if b, err := json.Marshal(verify); err == nil {
+		abs.PublishCommon(nil, "", event.From, ProtocolVerifyResource, b)
+	}
+	return nil
+}
+
+func (abs *StreamService) sendPlanner(event *common.Event) error { //
+	if len(event.Payload) == 0 {
+		if plan, err := planner.GenerateShallow(&tools.APIRequest{Admin: true}); err == nil {
+			if b, err := json.Marshal(plan); err == nil {
+				abs.PublishCommon(nil, event.User, event.From, ProtocolSendPlanner, b)
+			} else {
+				return err
+			}
+		} else {
+			return err
+		}
+	} else { // if not empty so it's
+		m := map[string]interface{}{}
+		if err := json.Unmarshal(event.Payload, &m); err == nil {
+			m["peer_id"] = event.From
+			if pl, err := json.Marshal(m); err == nil {
+				go tools.NewNATSCaller().SetNATSPub(tools.PLANNER_EXECUTION, tools.NATSResponse{
+					FromApp:  "oc-discovery",
+					Datatype: tools.DataType(oclib.BOOKING),
+					Method:   int(tools.PLANNER_EXECUTION),
+					Payload:  pl,
+				})
+			}
+		}
+	}
+	return nil
+}
+
+func (abs *StreamService) retrieveResponse(event *common.Event) error { //
+	res, err := resources.ToResource(int(event.DataType), event.Payload)
+	if err != nil || res == nil {
+		return nil
+	}
+	b, err := json.Marshal(res.Serialize(res))
+	go tools.NewNATSCaller().SetNATSPub(tools.SEARCH_EVENT, tools.NATSResponse{
+		FromApp:  "oc-discovery",
+		Datatype: tools.DataType(event.DataType),
+		Method:   int(tools.SEARCH_EVENT),
+		Payload:  b,
+	})
+	return nil
+}
+
+func (abs *StreamService) pass(event *common.Event, action tools.PubSubAction) error { //
+	if b, err := json.Marshal(&tools.PropalgationMessage{
+		Action:   action,
+		DataType: int(event.DataType),
+		Payload:  event.Payload,
+	}); err == nil {
+		go tools.NewNATSCaller().SetNATSPub(tools.PROPALGATION_EVENT, tools.NATSResponse{
+			FromApp:  "oc-discovery",
+			Datatype: tools.DataType(event.DataType),
+			Method:   int(tools.PROPALGATION_EVENT),
+			Payload:  b,
+		})
+	}
+	return nil
+}
+
+func (ps *StreamService) handleEventFromPartner(evt *common.Event, protocol string) error {
+	switch protocol {
+	case ProtocolSearchResource:
+		m := map[string]interface{}{}
+		err := json.Unmarshal(evt.Payload, &m)
+		if err != nil {
+			return err
+		}
+		if search, ok := m["search"]; ok {
+			access := oclib.NewRequestAdmin(oclib.LibDataEnum(oclib.PEER), nil)
+			peers := access.Search(&dbs.Filters{
+				And: map[string][]dbs.Filter{
+					"peer_id": {{Operator: dbs.EQUAL.String(), Value: evt.From}},
+				},
+			}, evt.From, false)
+			if len(peers.Data) > 0 {
+				p := peers.Data[0].(*peer.Peer)
+				fmt.Println(evt.From, p.GetID(), peers.Data)
+
+				ps.SendResponse(p, evt, fmt.Sprintf("%v", search))
+			} else if p, err := ps.Node.GetPeerRecord(context.Background(), evt.From); err == nil && len(p) > 0 { // peer from is peerID
+				ps.SendResponse(p[0], evt, fmt.Sprintf("%v", search))
+			}
+		} else {
+			fmt.Println("SEND SEARCH_EVENT SetNATSPub", m)
+			go tools.NewNATSCaller().SetNATSPub(tools.SEARCH_EVENT, tools.NATSResponse{
+				FromApp:  "oc-discovery",
+				Datatype: tools.DataType(evt.DataType),
+				Method:   int(tools.SEARCH_EVENT),
+				Payload:  evt.Payload,
+			})
+		}
+	case ProtocolCreateResource, ProtocolUpdateResource:
+		fmt.Println("RECEIVED Protocol.Update")
+		go tools.NewNATSCaller().SetNATSPub(tools.CREATE_RESOURCE, tools.NATSResponse{
+			FromApp:  "oc-discovery",
+			Datatype: tools.DataType(evt.DataType),
+			Method:   int(tools.CREATE_RESOURCE),
+			Payload:  evt.Payload,
+		})
+	case ProtocolDeleteResource:
+		go tools.NewNATSCaller().SetNATSPub(tools.REMOVE_RESOURCE, tools.NATSResponse{
+			FromApp:  "oc-discovery",
+			Datatype: tools.DataType(evt.DataType),
+			Method:   int(tools.REMOVE_RESOURCE),
+			Payload:  evt.Payload,
+		})
+	default:
+		return errors.New("no action authorized available : " + protocol)
+	}
+	return nil
+}
+
+func (abs *StreamService) SendResponse(p *peer.Peer, event *common.Event, search string) error {
+	dts := []tools.DataType{tools.DataType(event.DataType)}
+	if event.DataType == -1 { // expect all resources
+		dts = []tools.DataType{
+			tools.COMPUTE_RESOURCE,
+			tools.STORAGE_RESOURCE,
+			tools.PROCESSING_RESOURCE,
+			tools.DATA_RESOURCE,
+			tools.WORKFLOW_RESOURCE,
+		}
+	}
+	if self, err := oclib.GetMySelf(); err != nil {
+		return err
+	} else {
+		for _, dt := range dts {
+			access := oclib.NewRequestAdmin(oclib.LibDataEnum(dt), nil)
+			peerID := p.GetID()
+			searched := access.Search(abs.FilterPeer(self.GetID(), search), "", false)
+			fmt.Println("SEND SEARCH_EVENT", self.GetID(), dt, len(searched.Data), peerID)
+			for _, ss := range searched.Data {
+				if j, err := json.Marshal(ss); err == nil {
+					_, err := abs.PublishCommon(&dt, event.User, p.PeerID, ProtocolSearchResource, j)
+					fmt.Println("Publish ERR", err)
+				}
+			}
+		}
+	}
+	return nil
+}

daemons/node/stream/publish.go

@@ -0,0 +1,151 @@
+package stream
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"oc-discovery/daemons/node/common"
+
+	oclib "cloud.o-forge.io/core/oc-lib"
+	"cloud.o-forge.io/core/oc-lib/dbs"
+	"cloud.o-forge.io/core/oc-lib/models/peer"
+	"cloud.o-forge.io/core/oc-lib/tools"
+	pp "github.com/libp2p/go-libp2p/core/peer"
+	"github.com/libp2p/go-libp2p/core/protocol"
+)
+
+func (ps *StreamService) PublishesCommon(dt *tools.DataType, user string, filter *dbs.Filters, resource []byte, protos ...protocol.ID) error {
+	access := oclib.NewRequestAdmin(oclib.LibDataEnum(oclib.PEER), nil)
+	var p oclib.LibDataShallow
+	if filter == nil {
+		p = access.LoadAll(false)
+	} else {
+		p = access.Search(filter, "", false)
+	}
+	for _, pes := range p.Data {
+		for _, proto := range protos {
+			if _, err := ps.PublishCommon(dt, user, pes.(*peer.Peer).PeerID, proto, resource); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+func (ps *StreamService) PublishCommon(dt *tools.DataType, user string, toPeerID string, proto protocol.ID, resource []byte) (*common.Stream, error) {
+	fmt.Println("PublishCommon")
+	if toPeerID == ps.Key.String() {
+		fmt.Println("Can't send to ourself !")
+		return nil, errors.New("Can't send to ourself !")
+	}
+
+	access := oclib.NewRequestAdmin(oclib.LibDataEnum(oclib.PEER), nil)
+	p := access.Search(&dbs.Filters{
+		And: map[string][]dbs.Filter{ // search by name if no filters are provided
+			"peer_id": {{Operator: dbs.EQUAL.String(), Value: toPeerID}},
+		},
+	}, toPeerID, false)
+	var pe *peer.Peer
+	if len(p.Data) > 0 && p.Data[0].(*peer.Peer).Relation != peer.BLACKLIST {
+		pe = p.Data[0].(*peer.Peer)
+	} else if pps, err := ps.Node.GetPeerRecord(context.Background(), toPeerID); err == nil && len(pps) > 0 {
+		pe = pps[0]
+	}
+	if pe != nil {
+		ad, err := pp.AddrInfoFromString(pe.StreamAddress)
+		if err != nil {
+			return nil, err
+		}
+		fmt.Println("WRITE")
+		return ps.write(toPeerID, ad, dt, user, resource, proto)
+	}
+	return nil, errors.New("peer unvalid " + toPeerID)
+}
+
+func (ps *StreamService) ToPartnerPublishEvent(
+	ctx context.Context, action tools.PubSubAction, dt *tools.DataType, user string, payload []byte) error {
+	if *dt == tools.PEER {
+		var p peer.Peer
+		if err := json.Unmarshal(payload, &p); err != nil {
+			return err
+		}
+		if _, err := pp.Decode(p.PeerID); err != nil {
+			return err
+		}
+
+		if pe, err := oclib.GetMySelf(); err != nil {
+			return err
+		} else if pe.GetID() == p.GetID() {
+			return fmt.Errorf("can't send to ourself")
+		} else {
+			pe.Relation = p.Relation
+			pe.Verify = false
+			if b2, err := json.Marshal(pe); err == nil {
+				if _, err := ps.PublishCommon(dt, user, p.PeerID, ProtocolUpdateResource, b2); err != nil {
+					return err
+				}
+
+			}
+		}
+		return nil
+	}
+	ks := []protocol.ID{}
+	for k := range protocolsPartners {
+		ks = append(ks, k)
+	}
+	var proto protocol.ID
+	proto = ProtocolCreateResource
+	switch action {
+	case tools.PB_DELETE:
+		proto = ProtocolDeleteResource
+	case tools.PB_UPDATE:
+		proto = ProtocolUpdateResource
+	}
+	ps.PublishesCommon(dt, user, &dbs.Filters{ // filter by like name, short_description, description, owner, url if no filters are provided
+		And: map[string][]dbs.Filter{
+			"relation": {{Operator: dbs.EQUAL.String(), Value: peer.PARTNER}},
+		},
+	}, payload, proto)
+	return nil
+}
+
+func (s *StreamService) write(
+	did string,
+	peerID *pp.AddrInfo,
+	dt *tools.DataType,
+	user string,
+	payload []byte,
+	proto protocol.ID) (*common.Stream, error) {
+	logger := oclib.GetLogger()
+	var err error
+	pts := map[protocol.ID]*common.ProtocolInfo{}
+	for k, v := range protocols {
+		pts[k] = v
+	}
+	for k, v := range protocolsPartners {
+		pts[k] = v
+	}
+	// should create a very temp stream
+	if s.Streams, err = common.TempStream(s.Host, *peerID, proto, did, s.Streams, pts, &s.Mu); err != nil {
+		return nil, errors.New("no stream available for protocol " + fmt.Sprintf("%v", proto) + " from PID " + peerID.ID.String())
+
+	}
+	if self, err := oclib.GetMySelf(); err != nil {
+		return nil, err
+	} else {
+		stream := s.Streams[proto][peerID.ID]
+		evt := common.NewEvent(string(proto), self.PeerID, dt, user, payload)
+		fmt.Println("SEND EVENT ", peerID, proto, evt.From, evt.DataType, evt.Timestamp)
+		if err := json.NewEncoder(stream.Stream).Encode(evt); err != nil {
+			stream.Stream.Close()
+			logger.Err(err)
+			return nil, err
+		}
+		if protocolInfo, ok := protocols[proto]; ok && protocolInfo.WaitResponse {
+			go s.readLoop(stream, peerID.ID, proto, &common.ProtocolInfo{PersistantStream: true})
+		}
+		return stream, nil
+	}
+
+}

daemons/node/stream/service.go

@@ -0,0 +1,259 @@
+package stream
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"io"
+	"oc-discovery/conf"
+	"oc-discovery/daemons/node/common"
+	"strings"
+	"sync"
+	"time"
+
+	oclib "cloud.o-forge.io/core/oc-lib"
+	"cloud.o-forge.io/core/oc-lib/dbs"
+	"cloud.o-forge.io/core/oc-lib/models/peer"
+	"cloud.o-forge.io/core/oc-lib/models/utils"
+	"github.com/google/uuid"
+	"github.com/libp2p/go-libp2p/core/host"
+	"github.com/libp2p/go-libp2p/core/network"
+	pp "github.com/libp2p/go-libp2p/core/peer"
+	"github.com/libp2p/go-libp2p/core/protocol"
+)
+
+const ProtocolConsidersResource = "/opencloud/resource/considers/1.0"
+const ProtocolMinioConfigResource = "/opencloud/minio/config/1.0"
+const ProtocolAdmiraltyConfigResource = "/opencloud/admiralty/config/1.0"
+
+const ProtocolSearchResource = "/opencloud/resource/search/1.0"
+const ProtocolCreateResource = "/opencloud/resource/create/1.0"
+const ProtocolUpdateResource = "/opencloud/resource/update/1.0"
+const ProtocolDeleteResource = "/opencloud/resource/delete/1.0"
+
+const ProtocolSendPlanner = "/opencloud/resource/planner/1.0"
+const ProtocolVerifyResource = "/opencloud/resource/verify/1.0"
+const ProtocolHeartbeatPartner = "/opencloud/resource/heartbeat/partner/1.0"
+
+var protocols = map[protocol.ID]*common.ProtocolInfo{
+	ProtocolConsidersResource:       {WaitResponse: false, TTL: 3 * time.Second},
+	ProtocolSendPlanner:             {WaitResponse: true, TTL: 24 * time.Hour},
+	ProtocolSearchResource:          {WaitResponse: true, TTL: 1 * time.Minute},
+	ProtocolVerifyResource:          {WaitResponse: true, TTL: 1 * time.Minute},
+	ProtocolMinioConfigResource:     {WaitResponse: true, TTL: 1 * time.Minute},
+	ProtocolAdmiraltyConfigResource: {WaitResponse: true, TTL: 1 * time.Minute},
+}
+
+var protocolsPartners = map[protocol.ID]*common.ProtocolInfo{
+	ProtocolCreateResource: {TTL: 3 * time.Second},
+	ProtocolUpdateResource: {TTL: 3 * time.Second},
+	ProtocolDeleteResource: {TTL: 3 * time.Second},
+}
+
+type StreamService struct {
+	Key          pp.ID
+	Host         host.Host
+	Node         common.DiscoveryPeer
+	Streams       common.ProtocolStream
+	maxNodesConn int
+	Mu           sync.RWMutex
+}
+
+func InitStream(ctx context.Context, h host.Host, key pp.ID, maxNode int, node common.DiscoveryPeer) (*StreamService, error) {
+	logger := oclib.GetLogger()
+	service := &StreamService{
+		Key:          key,
+		Node:         node,
+		Host:         h,
+		Streams:       common.ProtocolStream{},
+		maxNodesConn: maxNode,
+	}
+	for proto := range protocols {
+		service.Host.SetStreamHandler(proto, service.HandleResponse)
+	}
+	logger.Info().Msg("connect to partners...")
+	service.connectToPartners() // we set up a stream
+	go service.StartGC(8 * time.Second)
+	return service, nil
+}
+
+func (s *StreamService) HandleResponse(stream network.Stream) {
+	s.Mu.Lock()
+	defer s.Mu.Unlock()
+	stream.Protocol()
+	if s.Streams[stream.Protocol()] == nil {
+		s.Streams[stream.Protocol()] = map[pp.ID]*common.Stream{}
+	}
+	expiry := 1 * time.Minute
+
+	if protocols[stream.Protocol()] != nil {
+		expiry = protocols[stream.Protocol()].TTL
+	} else if protocolsPartners[stream.Protocol()] != nil {
+		expiry = protocolsPartners[stream.Protocol()].TTL
+	}
+
+	s.Streams[stream.Protocol()][stream.Conn().RemotePeer()] = &common.Stream{
+		Stream: stream,
+		Expiry: time.Now().UTC().Add(expiry + 1*time.Minute),
+	}
+	go s.readLoop(s.Streams[stream.Protocol()][stream.Conn().RemotePeer()],
+		stream.Conn().RemotePeer(),
+		stream.Protocol(), protocols[stream.Protocol()])
+}
+
+
+func (s *StreamService) connectToPartners() error {
+	logger := oclib.GetLogger()
+	// Register handlers for partner resource protocols (create/update/delete).
+	// Connections to partners happen on-demand via TempStream when needed.
+	for proto, info := range protocolsPartners {
+		f := func(ss network.Stream) {
+			if s.Streams[proto] == nil {
+				s.Streams[proto] = map[pp.ID]*common.Stream{}
+			}
+			s.Streams[proto][ss.Conn().RemotePeer()] = &common.Stream{
+				Stream: ss,
+				Expiry: time.Now().UTC().Add(10 * time.Second),
+			}
+			go s.readLoop(s.Streams[proto][ss.Conn().RemotePeer()], ss.Conn().RemotePeer(), proto, info)
+		}
+		logger.Info().Msg("SetStreamHandler " + string(proto))
+		s.Host.SetStreamHandler(proto, f)
+	}
+	return nil
+}
+
+
+func (s *StreamService) searchPeer(search string) ([]*peer.Peer, error) {
+	ps := []*peer.Peer{}
+	if conf.GetConfig().PeerIDS != "" {
+		for _, peerID := range strings.Split(conf.GetConfig().PeerIDS, ",") {
+			ppID := strings.Split(peerID, "/")
+			ps = append(ps, &peer.Peer{
+				AbstractObject: utils.AbstractObject{
+					UUID: uuid.New().String(),
+					Name: ppID[1],
+				},
+				PeerID:        ppID[len(ppID)-1],
+				StreamAddress: peerID,
+				Relation:      peer.PARTNER,
+			})
+		}
+	}
+	access := oclib.NewRequestAdmin(oclib.LibDataEnum(oclib.PEER), nil)
+	peers := access.Search(nil, search, false)
+	for _, p := range peers.Data {
+		ps = append(ps, p.(*peer.Peer))
+	}
+	return ps, nil
+}
+
+func (ix *StreamService) Close() {
+	for _, s := range ix.Streams {
+		for _, ss := range s {
+			ss.Stream.Close()
+		}
+	}
+}
+
+func (s *StreamService) StartGC(interval time.Duration) {
+	go func() {
+		t := time.NewTicker(interval)
+		defer t.Stop()
+		for range t.C {
+			s.gc()
+		}
+	}()
+}
+
+func (s *StreamService) gc() {
+	s.Mu.Lock()
+	defer s.Mu.Unlock()
+	now := time.Now().UTC()
+
+	for pid, rec := range s.Streams[ProtocolHeartbeatPartner] {
+		if now.After(rec.Expiry) {
+			for _, sstreams := range s.Streams {
+				if sstreams[pid] != nil {
+					sstreams[pid].Stream.Close()
+					delete(sstreams, pid)
+				}
+			}
+		}
+	}
+}
+
+func (ps *StreamService) readLoop(s *common.Stream, id pp.ID, proto protocol.ID, protocolInfo *common.ProtocolInfo) {
+	defer s.Stream.Close()
+	defer func() {
+		ps.Mu.Lock()
+		defer ps.Mu.Unlock()
+		delete(ps.Streams[proto], id)
+	}()
+	loop := true
+	if !protocolInfo.PersistantStream && !protocolInfo.WaitResponse { // 2 sec is enough... to wait a response
+		time.AfterFunc(2*time.Second, func() {
+			loop = false
+		})
+	}
+	for {
+		if !loop {
+			break
+		}
+		var evt common.Event
+		if err := json.NewDecoder(s.Stream).Decode(&evt); err != nil {
+			// Any decode error (EOF, reset, malformed JSON) terminates the loop;
+			// continuing on a dead/closed stream creates an infinite spin.
+			if errors.Is(err, io.EOF) || errors.Is(err, io.ErrUnexpectedEOF) ||
+				strings.Contains(err.Error(), "reset") ||
+				strings.Contains(err.Error(), "closed") ||
+				strings.Contains(err.Error(), "too many connections") {
+				return
+			}
+			continue
+		}
+		ps.handleEvent(evt.Type, &evt)
+		if protocolInfo.WaitResponse && !protocolInfo.PersistantStream {
+			break
+		}
+	}
+}
+
+func (abs *StreamService) FilterPeer(peerID string, search string) *dbs.Filters {
+	p, err := oclib.GetMySelf()
+	if err != nil {
+		return nil
+	}
+	filter := map[string][]dbs.Filter{
+		"abstractinstanciatedresource.abstractresource.abstractobject.creator_id": {{Operator: dbs.EQUAL.String(), Value: p.GetID()}}, // is my resource...
+		"": {{Operator: dbs.OR.String(), Value: &dbs.Filters{
+			Or: map[string][]dbs.Filter{
+				"abstractinstanciatedresource.abstractresource.abstractobject.access_mode": {{Operator: dbs.EQUAL.String(), Value: 1}}, // if public
+				"abstractinstanciatedresource.instances": {{Operator: dbs.ELEMMATCH.String(), Value: &dbs.Filters{ // or got a partners instances
+					And: map[string][]dbs.Filter{
+						"resourceinstance.partnerships": {{Operator: dbs.ELEMMATCH.String(), Value: &dbs.Filters{
+							And: map[string][]dbs.Filter{
+								"resourcepartnership.peer_groups." + peerID: {{Operator: dbs.EXISTS.String(), Value: true}},
+							},
+						}}},
+					},
+				}}},
+			},
+		}}},
+	}
+
+	if search != "" {
+		filter[" "] = []dbs.Filter{{Operator: dbs.OR.String(), Value: &dbs.Filters{
+			Or: map[string][]dbs.Filter{ // filter by like name, short_description, description, owner, url if no filters are provided
+				"abstractinstanciatedresource.abstractresource.abstractobject.name": {{Operator: dbs.LIKE.String(), Value: search}},
+				"abstractinstanciatedresource.abstractresource.type":                {{Operator: dbs.LIKE.String(), Value: search}},
+				"abstractinstanciatedresource.abstractresource.short_description":   {{Operator: dbs.LIKE.String(), Value: search}},
+				"abstractinstanciatedresource.abstractresource.description":         {{Operator: dbs.LIKE.String(), Value: search}},
+				"abstractinstanciatedresource.abstractresource.owners.name":         {{Operator: dbs.LIKE.String(), Value: search}},
+			},
+		}}}
+	}
+	return &dbs.Filters{
+		And: filter,
+	}
+}

demo-discovery.sh

@@ -0,0 +1,33 @@
+#!/bin/bash
+IMAGE_BASE_NAME="oc-discovery"
+DOCKERFILE_PATH="."
+
+docker network create \
+  --subnet=172.40.0.0/24 \
+  discovery
+
+for i in $(seq ${1:-0} ${2:-3}); do
+  NUM=$((i + 1))
+  PORT=$((4000 + $NUM))
+
+  IMAGE_NAME="${IMAGE_BASE_NAME}:${NUM}"
+
+
+  echo "▶ Building image ${IMAGE_NAME} with CONF_NUM=${NUM}"
+  docker build \
+    --build-arg CONF_NUM=${NUM} \
+    -t "${IMAGE_BASE_NAME}_${NUM}" \
+    ${DOCKERFILE_PATH}
+
+  docker kill "${IMAGE_BASE_NAME}_${NUM}" | true
+  docker rm "${IMAGE_BASE_NAME}_${NUM}" | true
+
+  echo "▶ Running container ${IMAGE_NAME} on port ${PORT}:${PORT}"
+  docker run -d \
+    --network="${3:-oc}" \
+    -p ${PORT}:${PORT} \
+    --name "${IMAGE_BASE_NAME}_${NUM}" \
+    "${IMAGE_BASE_NAME}_${NUM}"
+
+  docker network connect --ip "172.40.0.${NUM}" discovery "${IMAGE_BASE_NAME}_${NUM}"
+done

discovery.json

@@ -1,10 +0,0 @@
-{
-    "port": 8080,
-    "redisurl":"localhost:6379",
-    "redispassword":"",
-    "zincurl":"http://localhost:4080", 
-    "zinclogin":"admin", 
-    "zincpassword":"admin", 
-    "identityfile":"/app/identity.json",
-    "defaultpeers":"/app/peers.json"
-}

docker-compose.yml

@@ -1,10 +1,14 @@
 version: '3.4'
 
 services:
-  ocdiscovery:
-    image: 'ocdiscovery:latest'
+  oc-schedulerd:
+    image: 'oc-discovery:latest'
     ports:
-      - 8088:8080
-    container_name: ocdiscovery
-
+      - 9002:8080
+    container_name: oc-discovery
+    networks: 
+      - oc
 
+networks: 
+  oc:
+    external: true

docker_discovery.json

@@ -1,10 +0,0 @@
-{
-    "port": 8080,
-    "redisurl":"localhost:6379",
-    "redispassword":"",
-    "zincurl":"http://localhost:4080", 
-    "zinclogin":"admin", 
-    "zincpassword":"admin", 
-    "identityfile":"/app/identity.json",
-    "defaultpeers":"/app/peers.json"
-}

docker_discovery1.json

@@ -0,0 +1,6 @@
+{
+    "MONGO_URL":"mongodb://mongo:27017/", 
+    "MONGO_DATABASE":"DC_myDC",
+    "NATS_URL": "nats://nats:4222",
+    "NODE_MODE": "indexer"
+}

docker_discovery2.json

@@ -0,0 +1,8 @@
+{
+    "MONGO_URL":"mongodb://mongo:27017/", 
+    "MONGO_DATABASE":"DC_myDC",
+    "NATS_URL": "nats://nats:4222",
+    "NODE_MODE": "indexer",
+    "NODE_ENDPOINT_PORT": 4002,
+    "INDEXER_ADDRESSES": "/ip4/172.40.0.1/tcp/4001/p2p/12D3KooWGn3j4XqTSrjJDGGpTQERdDV5TPZdhQp87rAUnvQssvQu"
+}

docker_discovery3.json

@@ -0,0 +1,8 @@
+{
+    "MONGO_URL":"mongodb://mongo:27017/", 
+    "MONGO_DATABASE":"DC_myDC",
+    "NATS_URL": "nats://nats:4222",
+    "NODE_MODE": "node",
+    "NODE_ENDPOINT_PORT": 4003,
+    "INDEXER_ADDRESSES": "/ip4/172.40.0.2/tcp/4002/p2p/12D3KooWC3GNStak8KCYtJq11Dxiq45EJV53z1ZvKetMcZBeBX6u"
+}

docker_discovery4.json

@@ -0,0 +1,8 @@
+{
+    "MONGO_URL":"mongodb://mongo:27017/", 
+    "MONGO_DATABASE":"DC_myDC",
+    "NATS_URL": "nats://nats:4222",
+    "NODE_MODE": "node",
+    "NODE_ENDPOINT_PORT": 4004,
+    "INDEXER_ADDRESSES": "/ip4/172.40.0.1/tcp/4001/p2p/12D3KooWGn3j4XqTSrjJDGGpTQERdDV5TPZdhQp87rAUnvQssvQu"
+}

docs/FUTURE_DHT_ARCHITECTURE.txt

@@ -0,0 +1,362 @@
+================================================================================
+  OC-DISCOVERY : ARCHITECTURE CIBLE — RÉSEAU DHT SANS NATIFS
+  Vision d'évolution long terme, issue d'une analyse comparative
+================================================================================
+
+Rédigé à partir de l'analyse de l'architecture actuelle et de la discussion
+comparative avec Tapestry, Kademlia, EigenTrust et les systèmes de réputation
+distribués.
+
+Référence : DECENTRALIZED_SYSTEMS_COMPARISON.txt §9
+
+
+================================================================================
+1. MOTIVATION
+================================================================================
+
+L'architecture actuelle (node → indexer → native indexer) est robuste et bien
+adaptée à une phase précoce du réseau. Ses limites à l'échelle sont :
+
+  - Pool de natives statique au démarrage → dépendance à la configuration
+  - Cache local des natives = point de défaillance unique (perte = pool vide)
+  - Consensus inter-natives bloquant (~7s) déclenché à chaque bootstrap node
+  - État O(N indexers) par native → croît linéairement avec le réseau
+  - Nœuds privilégiés structurellement → SPOFs relatifs
+
+La cible décrite ici supprime la notion de native indexer en tant que tier
+architectural. Le réseau devient plat : indexers et nodes sont des acteurs
+de même nature, différenciés uniquement par leur rôle volontaire.
+
+
+================================================================================
+2. PRINCIPES FONDAMENTAUX
+================================================================================
+
+  P1. Aucun nœud n'est structurellement privilégié.
+  P2. La confiance est un produit du temps et de la vérification, pas d'un arbitre.
+  P3. Les claims d'un acteur sont vérifiables indépendamment par tout pair.
+  P4. La réputation émerge du comportement collectif, pas d'un signalement central.
+  P5. La DHT est une infrastructure neutre — elle stocke des faits, pas des jugements.
+  P6. La configuration statique n'existe plus au runtime — seulement au bootstrap.
+
+
+================================================================================
+3. RÔLES
+================================================================================
+
+3.1 Node
+--------
+Consommateur du réseau. Démarre, sélectionne un pool d'indexers via DHT,
+heartbeat ses indexers, accumule des scores localement. Ne publie rien en
+routine. Participe aux challenges de consensus à la demande.
+
+3.2 Indexer
+-----------
+Acteur volontaire. S'inscrit dans la DHT à la naissance, maintient son record,
+sert le trafic des nodes (heartbeat, Publish, Get). Déclare ses métriques dans
+chaque réponse heartbeat. Maintient un score agrégé depuis ses nodes connectés.
+
+  Différence avec l'actuel : l'indexer n'a plus de lien avec une native.
+  Il est autonome. Son existence dans le réseau est prouvée par son record DHT
+  et par les nodes qui le contactent directement.
+
+3.3 Nœud DHT infrastructure (ex-native)
+----------------------------------------
+N'importe quel nœud suffisamment stable peut maintenir la DHT sans être un
+indexer. C'est une configuration, pas un type architectural : `dht_mode: server`.
+Ces nœuds maintiennent les k-buckets Kademlia et stockent les records des
+indexers. Ils ne connaissent pas le trafic node↔indexer et ne l'orchestrent pas.
+
+
+================================================================================
+4. BOOTSTRAP D'UN NODE
+================================================================================
+
+4.1 Entrée dans le réseau
+-------------------------
+Le node démarre avec 1 à 3 adresses de nœuds DHT connus (bootstrap peers).
+Ce sont les seules informations statiques nécessaires. Ces peers n'ont pas de
+rôle sémantique — ils servent uniquement à entrer dans l'overlay DHT.
+
+4.2 Découverte du pool d'indexers
+----------------------------------
+
+  Node → DHT.FindProviders(hash("/opencloud/indexers"))
+       → reçoit une liste de N candidats avec leurs records
+
+Sélection du pool initial :
+
+  1. Filtre latence   : ping < seuil → proximité réseau réelle
+  2. Filtre fill rate : préférer les indexers moins chargés
+  3. Tirage pondéré   : probabilité ∝ (1 - fill_rate), courbe w(F) = F×(1-F)
+                        indexer à 20% charge → très probable
+                        indexer à 80% charge → peu probable
+  4. Filtre diversité : subnet /24 différent pour chaque entrée du pool
+
+Aucun consensus nécessaire à cette étape. Le node démarre avec une tolérance
+basse (voir §7) — il accepte des indexers imparfaits et les évalue au fil du temps.
+
+
+================================================================================
+5. REGISTRATION D'UN INDEXER DANS LA DHT
+================================================================================
+
+À la naissance, l'indexer publie son record DHT :
+
+  clé   : hash("/opencloud/indexers")          ← clé fixe, connue de tous
+  valeur: {
+    multiaddr   : <adresse réseau>,
+    region      : <subnet /24>,
+    capacity    : <maxNodesConn>,
+    fill_rate   : <float 0-1>,                 ← auto-déclaré, vérifiable
+    peer_count  : <int>,                       ← auto-déclaré, vérifiable
+    peers       : [hash(nodeID1), ...],        ← liste hashée des nodes connectés
+    born_at     : <timestamp>,
+    sig         : <signature clé indexer>,     ← non-forgeable (PSK context)
+  }
+
+Le record est rafraîchi toutes les ~60s (avant expiration du TTL).
+Si l'indexer tombe : TTL expire → disparaît de la DHT automatiquement.
+
+La peer list est hashée pour la confidentialité mais reste vérifiable :
+un challenger peut demander directement à un node s'il est connecté à cet indexer.
+
+
+================================================================================
+6. PROTOCOLE HEARTBEAT — QUESTION ET RÉPONSE
+================================================================================
+
+Le heartbeat devient bidirectionnel : le node pose des questions, l'indexer
+répond avec ses déclarations courantes.
+
+6.1 Structure
+-------------
+
+  Node → Indexer :
+  {
+    ts        : now,
+    challenge : <optionnel, voir §8>
+  }
+
+  Indexer → Node :
+  {
+    ts           : now,
+    fill_rate    : 0.42,
+    peer_count   : 87,
+    cached_score : 0.74,        ← score agrégé depuis tous ses nodes connectés
+    challenge_response : {...}  ← si challenge présent dans la requête
+  }
+
+Le heartbeat normal (sans challenge) est quasi-identique à l'actuel en poids.
+Le cached_score indexer est mis à jour progressivement par les feedbacks reçus.
+
+6.2 Le cached_score de l'indexer
+---------------------------------
+L'indexer agrège les scores que ses nodes connectés lui communiquent
+(implicitement via le fait qu'ils restent connectés, ou explicitement lors
+d'un consensus). Ce score lui donne une vision de sa propre qualité réseau.
+
+Un node peut comparer son score local de l'indexer avec le cached_score déclaré.
+Une forte divergence est un signal d'alerte.
+
+  Score local node : 0.40   ← cet indexer est médiocre pour moi
+  Cached score     : 0.91   ← il se prétend excellent globalement
+  → déclenche un challenge de vérification
+
+
+================================================================================
+7. MODÈLE DE CONFIANCE PROGRESSIVE
+================================================================================
+
+7.1 Cycle de vie d'un node
+---------------------------
+
+  Naissance
+    → tolérance basse : accepte presque n'importe quel indexer du DHT
+    → switching cost faible : peu de contexte accumulé
+    → minScore ≈ 20% (dynamicMinScore existant, conservé)
+
+  Quelques heures
+    → uptime s'accumule sur chaque indexer connu
+    → scores se stabilisent
+    → seuil de remplacement qui monte progressivement
+
+  Long terme (jours)
+    → pool stable, confiance élevée sur les indexers connus
+    → switching coûteux mais déclenché sur déception franche
+    → minScore ≈ 80% (maturité)
+
+7.2 Modèle sous-jacent : beta distribution implicite
+------------------------------------------------------
+
+  α = succès cumulés  (heartbeats OK, probes OK, challenges réussis)
+  β = échecs cumulés  (timeouts, probes échoués, challenges ratés)
+
+  confiance = α / (α + β)
+
+  Nouveau indexer   : α=0, β=0   → prior neutre, tolérance basse
+  Après 10 jours    : α élevé    → confiance stable, seuil de switch élevé
+  Déception franche : β monte    → confiance chute → switch déclenché
+
+7.3 Ce que "décevoir" signifie
+--------------------------------
+
+  Heartbeat rate     → trop de timeouts → fiabilité en baisse
+  Bandwidth probe    → chute sous déclaré → dégradation ou mensonge
+  Fill rate réel     → supérieur au déclaré → indexer surchargé ou malhonnête
+  Challenge échoué   → peer déclaré absent du réseau → claim invalide
+  Latence            → dérive progressive → qualité réseau dégradée
+  Cached_score gonflé → divergence forte avec score local → suspicion
+
+
+================================================================================
+8. VÉRIFICATION DES CLAIMS — TROIS COUCHES
+================================================================================
+
+8.1 Couche 1 : passive (chaque heartbeat, 60s)
+-----------------------------------------------
+Mesures automatiques, zéro coût supplémentaire.
+
+  - RTT du heartbeat          → latence directe
+  - fill_rate déclaré         → tiny payload dans la réponse
+  - peer_count déclaré        → tiny payload
+  - cached_score indexer      → comparé au score local
+
+8.2 Couche 2 : sampling actif (1 heartbeat sur N)
+--------------------------------------------------
+Vérifications périodiques, asynchrones, légères.
+
+  Tous les 5 HB (~5min)  : spot-check 1 peer aléatoire (voir §8.4)
+  Tous les 10 HB (~10min): vérification diversité subnet (lookups DHT légers)
+  Tous les 15 HB (~15min): bandwidth probe (transfert réel, protocole dédié)
+
+8.3 Couche 3 : consensus (événementiel)
+-----------------------------------------
+Déclenché sur : admission d'un nouvel indexer dans le pool, ou suspicion détectée.
+
+  Node sélectionne une claim vérifiable de l'indexer cible X
+  Node vérifie lui-même
+  Node demande à ses indexers de confiance : "vérifiez cette claim sur X"
+  Chaque indexer vérifie indépendamment
+  Convergence des résultats → X est honnête → admission
+  Divergence               → X est suspect → rejet ou probation
+
+  Le consensus est léger : quelques contacts out-of-band, pas de round bloquant.
+  Il n'est pas continu — il est événementiel.
+
+8.4 Vérification out-of-band (pas de DHT writes par les nodes)
+----------------------------------------------------------------
+Les nodes ne publient PAS de contact records continus dans la DHT.
+Cela éviterait N×M records à rafraîchir (coût DHT élevé à l'échelle).
+
+À la place, lors d'un challenge :
+
+  Challenger sélectionne 2-3 peers dans la peer list déclarée par X
+  → contacte ces peers directement : "es-tu connecté à indexer X ?"
+  → réponse directe (out-of-band, pas via DHT)
+  → vérification sans écriture DHT
+
+L'indexer ne peut pas faire répondre "oui" à des peers qui ne lui sont pas
+connectés. La vérification est non-falsifiable et sans coût DHT.
+
+8.5 Pourquoi X ne peut pas tricher
+------------------------------------
+X ne peut pas coordonner des réponses différentes vers des challengers
+simultanés. Chaque challenger contacte indépendamment les mêmes peers.
+Si X ment sur sa peer list :
+
+  - Challenger A contacte peer P → "non, pas connecté à X"
+  - Challenger B contacte peer P → "non, pas connecté à X"
+  - Consensus : X ment → score chute chez tous les challengers
+  - Effet réseau : progressivement, X perd ses connections
+  - Peer list DHT se vide → claims futures encore moins crédibles
+
+
+================================================================================
+9. EFFET RÉSEAU SANS SIGNALEMENT CENTRAL
+================================================================================
+
+Un node qui pénalise un indexer n'envoie aucun "rapport" à quiconque.
+Ses actions locales produisent l'effet réseau par agrégation :
+
+  Node baisse le score de X      → X reçoit moins de trafic de ce node
+  Node switche vers Y            → X perd un client
+  Node refuse les challenges X   → X ne peut plus participer aux consensus
+
+Si 200 nodes font pareil :
+
+  X perd la majorité de ses connections
+  Sa peer list DHT se vide (peers contactés directement disent "non")
+  Son cached_score s'effondre (peu de nodes restent)
+  Les nouveaux nodes qui voient X dans la DHT obtiennent des challenges échoués
+  X est naturellement exclu sans aucune décision centrale
+
+Inversement, un indexer honnête voit ses scores monter sur tous ses nodes
+connectés, sa peer list se densifier, ses challenges réussis systématiquement.
+Sa réputation est un produit observable et vérifiable.
+
+
+================================================================================
+10. RÉSUMÉ DE L'ARCHITECTURE
+================================================================================
+
+  DHT          → annuaire neutre, vérité des records indexers
+                  maintenu par tout nœud stable (dht_mode: server)
+
+  Indexer      → acteur volontaire, s'inscrit, maintient ses claims,
+                  sert le trafic, accumule son propre score agrégé
+
+  Node         → consommateur, score passif + sampling + consensus léger,
+                  confiance progressive, switching adaptatif
+
+  Heartbeat    → métronome 60s + vecteur de déclarations légères + challenge optionnel
+
+  Consensus    → événementiel, multi-challengers indépendants,
+                  vérification out-of-band sur claims DHT
+
+  Confiance    → beta implicite, progressive, switching cost croissant avec l'âge
+
+  Réputation   → émerge du comportement collectif, aucun arbitre central
+
+  Bootstrap    → 1-3 peers DHT connus → seule configuration statique nécessaire
+
+
+================================================================================
+11. TRAJECTOIRE DE MIGRATION
+================================================================================
+
+  Phase 1 (actuel)
+    Natives statiques, pool indexers dynamique, consensus inter-natives
+    → robuste, adapté à la phase précoce
+
+  Phase 2 (intermédiaire)
+    Pool de natives dynamique via DHT (bootstrap + gossip)
+    Même protocole natif, juste la découverte devient dynamique
+    → supprime la dépendance à la configuration statique des natives
+    → voir DECENTRALIZED_SYSTEMS_COMPARISON.txt §9.2
+
+  Phase 3 (cible)
+    Architecture décrite dans ce document
+    Natives disparaissent en tant que tier architectural
+    DHT = infrastructure, indexers = acteurs autonomes
+    Scoring et consensus entièrement côté node
+    → aucun nœud privilégié, scalabilité O(log N)
+
+  La migration Phase 2 → Phase 3 est une refonte du plan de contrôle.
+  Le plan de données (heartbeat node↔indexer, Publish, Get) est inchangé.
+  Les primitives libp2p (Kademlia DHT, GossipSub) sont déjà présentes.
+
+
+================================================================================
+12. PROPRIÉTÉS DU SYSTÈME CIBLE
+================================================================================
+
+  Scalabilité        O(log N) — routage DHT Kademlia
+  Résilience         Pas de SPOF structurel, TTL = seule source de vérité
+  Confiance          Progressive, vérifiable, émergente
+  Sybil resistance   PSK — seuls les nœuds avec la clé peuvent publier
+  Cold start         Tolérance basse initiale, montée progressive (existant)
+  Honnêteté          Claims vérifiables out-of-band, non-falsifiables
+  Décentralisation   Aucun nœud ne connaît l'état global complet
+
+================================================================================

docs/diagrams/01_node_init.puml

@@ -0,0 +1,64 @@
+@startuml
+title Node Initialization — Peer A (InitNode)
+
+participant "main (Peer A)" as MainA
+participant "Node A" as NodeA
+participant "libp2p (Peer A)" as libp2pA
+participant "ConnectionGater A" as GaterA
+participant "DB Peer A (oc-lib)" as DBA
+participant "NATS A" as NATSA
+participant "Indexer (shared)" as IndexerA
+participant "DHT A" as DHTA
+participant "StreamService A" as StreamA
+participant "PubSubService A" as PubSubA
+
+MainA -> NodeA: InitNode(isNode=true, isIndexer=false)
+
+NodeA -> NodeA: LoadKeyFromFilePrivate() → priv
+NodeA -> NodeA: LoadPSKFromFile() → psk
+
+NodeA -> GaterA: newOCConnectionGater(nil)
+NodeA -> libp2pA: New(\n  PrivateNetwork(psk),\n  Identity(priv),\n  ListenAddr: tcp/4001,\n  ConnectionGater(gater)\n)
+libp2pA --> NodeA: host A (PeerID_A)
+NodeA -> GaterA: gater.host = host A
+
+note over GaterA: InterceptSecured (inbound):\n1. DB lookup by peer_id\n   → BLACKLIST : refuse\n   → found : accept\n2. Not found → DHT sequential check\n   (transport-error fallthrough only)
+
+NodeA -> libp2pA: SetStreamHandler(/opencloud/probe/1.0, HandleBandwidthProbe)
+NodeA -> libp2pA: SetStreamHandler(/opencloud/witness/1.0, HandleWitnessQuery)
+
+NodeA -> libp2pA: NewGossipSub(ctx, host) → ps (GossipSub)
+
+NodeA -> NodeA: buildRecord() closure\n→ signs fresh PeerRecord (expiry=now+2min)\n  embedded in each heartbeat tick
+
+NodeA -> IndexerA: ConnectToIndexers(host, minIndexer=1, maxIndexer=5, buildRecord)
+note over IndexerA: Reads IndexerAddresses from config\nAdds seeds → Indexers Directory (IsSeed=true)\nLaunches SendHeartbeat goroutine (20s ticker)
+
+IndexerA -> DHTA: proactive DHT discovery (after 5s warmup)\ninitNodeDHT(h, seeds)\nDiscoverIndexersFromDHT → SelectByFillRate\n→ add to Indexers Directory + NudgeIt()
+
+NodeA -> NodeA: claimInfo(name, hostname)
+NodeA -> IndexerA: TempStream /opencloud/record/publish/1.0
+NodeA -> IndexerA: stream.Encode(Signed PeerRecord A)
+IndexerA -> DHTA: PutValue("/node/"+DID_A, record)
+
+NodeA -> NodeA: StartGC(30s)
+
+NodeA -> StreamA: InitStream(ctx, host, PeerID_A, 1000, nodeA)
+StreamA -> StreamA: SetStreamHandler(resource/search, create, update,\n  delete, planner, verify, considers)
+StreamA --> NodeA: StreamService A
+
+NodeA -> PubSubA: InitPubSub(ctx, host, ps, nodeA, streamA)
+PubSubA -> PubSubA: subscribeEvents(PB_SEARCH, timeout=-1)
+PubSubA --> NodeA: PubSubService A
+
+NodeA -> NodeA: SubscribeToSearch(ps, callback)
+note over NodeA: callback: if evt.From != self\n  → GetPeerRecord(evt.From)\n  → StreamService.SendResponse
+
+NodeA -> NATSA: ListenNATS(nodeA)
+note over NATSA: Subscribes:\nCREATE_RESOURCE → partner on-demand\nPROPALGATION_EVENT → resource propagation
+
+NodeA --> MainA: *Node A is ready
+
+note over NodeA,IndexerA: SendHeartbeat goroutine (permanent, 20s ticker):\nNode → Indexer : Heartbeat{name, PeerID, indexersBinded, need, challenges?, record}\nIndexer → Node  : HeartbeatResponse{fillRate, challenges, suggestions, witnesses, suggestMigrate}\nScore updated (7 dimensions), pool managed autonomously
+
+@enduml

docs/diagrams/02_node_claim.puml

@@ -0,0 +1,38 @@
+@startuml
+title Node Claim — Peer A publish its PeerRecord (claimInfo + publishPeerRecord)
+
+participant "DB Peer A (oc-lib)" as DBA
+participant "Node A" as NodeA
+participant "Indexer (shared)" as IndexerA
+participant "DHT Kademlia" as DHT
+participant "NATS A" as NATSA
+
+NodeA -> DBA: DB(PEER).Search(SELF)
+DBA --> NodeA: existing peer (DID_A) or new UUID
+
+NodeA -> NodeA: LoadKeyFromFilePrivate() → priv A
+NodeA -> NodeA: LoadKeyFromFilePublic() → pub A
+
+NodeA -> NodeA: Build PeerRecord A {\n  Name, DID, PubKey,\n  PeerID: PeerID_A,\n  APIUrl: hostname,\n  StreamAddress: /ip4/.../tcp/4001/p2p/PeerID_A,\n  NATSAddress, WalletAddress\n}
+
+NodeA -> NodeA: priv.Sign(rec) → signature
+NodeA -> NodeA: rec.ExpiryDate = now + 150s
+
+loop For every Node Binded Indexer (Indexer A, B, ...)
+    NodeA -> IndexerA: TempStream /opencloud/record/publish/1.0
+    NodeA -> IndexerA: strea!.Encode(Signed PeerRecord A)
+
+    IndexerA -> IndexerA: Verify signature
+    IndexerA -> IndexerA: Check PeerID_A heartbeat stream 
+    IndexerA -> DHT: PutValue("/node/"+DID_A, PeerRecord A)
+    DHT --> IndexerA: ok
+end
+
+NodeA -> NodeA: rec.ExtractPeer(DID_A, DID_A, pub A)
+NodeA -> NATSA: SetNATSPub(CREATE_RESOURCE, {PEER, Peer A JSON})
+NATSA -> DBA: Upsert Peer A (SearchAttr: peer_id)
+DBA --> NATSA: ok
+
+NodeA --> NodeA: *peer.Peer A (SELF)
+
+@enduml

docs/diagrams/03_indexer_heartbeat.puml

@@ -0,0 +1,59 @@
+@startuml indexer_heartbeat
+title Heartbeat bidirectionnel node → indexeur (scoring 7 dimensions + challenges)
+
+participant "Node A" as NodeA
+participant "Node B" as NodeB
+participant "IndexerService" as Indexer
+
+note over NodeA,NodeB: SendHeartbeat goroutine — tick every 20s
+
+== Tick Node A ==
+
+NodeA -> Indexer: NewStream /opencloud/heartbeat/1.0\n(long-lived, réutilisé aux ticks suivants)
+NodeA -> Indexer: stream.Encode(Heartbeat{\n  name, PeerID_A, timestamp,\n  indexersBinded: [addr1, addr2],\n  need: maxPool - len(pool),\n  challenges: [PeerID_A, PeerID_B],  ← batch (tous les 1-10 HBs)\n  challengeDID: "uuid-did-A",        ← DHT challenge (tous les 5 batches)\n  record: SignedPeerRecord_A         ← expiry=now+2min\n})
+
+Indexer -> Indexer: CheckHeartbeat(stream, maxNodes)\n→ len(Peers()) >= maxNodes → reject
+
+Indexer -> Indexer: HandleHeartbeat → UptimeTracker.RecordHeartbeat()\n→ gap ≤ 2×interval : TotalOnline += gap
+
+Indexer -> Indexer: Republish PeerRecord A to DHT\nDHT.PutValue("/node/"+DID_A, record_A)
+
+== Réponse indexeur → node A ==
+
+Indexer -> Indexer: BuildHeartbeatResponse(remotePeer=A, need, challenges, challengeDID)\n\nfillRate    = connected_nodes / MaxNodesConn()\npeerCount   = connected_nodes\nmaxNodes    = MaxNodesConn()\nbornAt      = time of indexer startup\n\nChallenges: pour chaque PeerID challengé\n  found    = PeerID dans StreamRecords[ProtocolHeartbeat]?\n  lastSeen = HeartbeatStream.UptimeTracker.LastSeen\n\nDHT challenge:\n  DHT.GetValue("/node/"+challengeDID, timeout=3s)\n  → dhtFound + dhtPayload\n\nWitnesses: jusqu'à 3 AddrInfos de nœuds connectés\n  (adresses connues dans Peerstore)\n\nSuggestions: jusqu'à `need` indexeurs depuis dhtCache\n  (refresh asynchrone 2min, SelectByFillRate)\n\nSuggestMigrate: fillRate > 80%\n  ET node dans offload.inBatch (batch ≤ 5, grace 3×HB)
+
+Indexer --> NodeA: stream.Encode(HeartbeatResponse{\n  fillRate, peerCount, maxNodes, bornAt,\n  challenges, dhtFound, dhtPayload,\n  witnesses, suggestions, suggestMigrate\n})
+
+== Traitement score côté Node A ==
+
+NodeA -> NodeA: score = ensureScore(Indexers, addr_indexer)\nscore.UptimeTracker.RecordHeartbeat()\n\nlatencyScore = max(0, 1 - RTT / (BaseRoundTrip × 10))\n\nBornAt stability:\n  bornAt changed? → score.bornAtChanges++\n\nfillConsistency:\n  expected = peerCount / maxNodes\n  |expected - fillRate| < 10% → fillConsistent++\n\nChallenge PeerID (ground truth own PeerID):\n  found=true AND lastSeen < 2×interval → challengeCorrect++\n\nDHT challenge:\n  dhtFound=true → dhtSuccess++\n\nWitness query (async):\n  go queryWitnesses(h, indexerID, bornAt, fillRate, witnesses, score)
+
+NodeA -> NodeA: score.Score = ComputeNodeSideScore(latencyScore)\n\nScore = (\n  0.20 × uptimeRatio\n+ 0.20 × challengeAccuracy\n+ 0.15 × latencyScore\n+ 0.10 × fillScore          ← 1 - fillRate\n+ 0.10 × fillConsistency\n+ 0.15 × witnessConsistency\n+ 0.10 × dhtSuccessRate\n) × 100 × bornAtPenalty\n\nbornAtPenalty = max(0, 1 - 0.30 × bornAtChanges)\nminScore      = clamp(20 + 60 × (age.Hours/24), 20, 80)
+
+alt score < minScore\n  AND TotalOnline ≥ 2×interval\n  AND !IsSeed\n  AND len(pool) > 1
+    NodeA -> NodeA: evictPeer(dir, addr, id, proto)\n→ delete Addr + Score + Stream\ngo TriggerConsensus(h, voters, need)\n  ou replenishIndexersFromDHT(h, need)
+end
+
+alt resp.SuggestMigrate == true AND nonSeedCount >= MinIndexer
+    alt IsSeed
+        NodeA -> NodeA: score.IsSeed = false\n(de-stickied — score eviction maintenant possible)
+    else !IsSeed
+        NodeA -> NodeA: evictPeer → migration acceptée
+    end
+end
+
+alt len(resp.Suggestions) > 0
+    NodeA -> NodeA: handleSuggestions(dir, indexerID, suggestions)\n→ inconnus ajoutés à Indexers Directory\n→ NudgeIt() si ajout effectif
+end
+
+== Tick Node B (concurrent) ==
+
+NodeB -> Indexer: stream.Encode(Heartbeat{PeerID_B, ...})
+Indexer -> Indexer: CheckHeartbeat → UptimeTracker → BuildHeartbeatResponse
+Indexer --> NodeB: HeartbeatResponse{...}
+
+== GC côté Indexeur ==
+
+note over Indexer: GC ticker 30s — gc()\nnow.After(Expiry) où Expiry = lastHBTime + 2min\n→ AfterDelete(pid, name, did) hors lock\n→ publishNameEvent(NameIndexDelete, ...)\nFillRate recalculé automatiquement
+
+@enduml

docs/diagrams/04_indexer_publish.puml

@@ -0,0 +1,47 @@
+@startuml
+title Indexer — Peer A publishing, Peer B publishing (handleNodePublish → DHT)
+
+participant "Node A" as NodeA
+participant "Node B" as NodeB
+participant "IndexerService (shared)" as Indexer
+participant "DHT Kademlia" as DHT
+
+note over NodeA: Start after claimInfo or refresh TTL
+
+par Peer A publish its PeerRecord
+    NodeA -> Indexer: TempStream /opencloud/record/publish/1.0
+    NodeA -> Indexer: stream.Encode(PeerRecord A {DID_A, PeerID_A, PubKey_A, Expiry, Sig_A})
+
+    Indexer -> Indexer: Verify sig_A (reconstruit rec minimal, pubKey_A.Verify)
+    Indexer -> Indexer: Check StreamRecords[Heartbeat][PeerID_A] existe
+
+    alt A active Heartbeat
+        Indexer -> Indexer: StreamRecord A → DID_A, Record=PeerRecord A, LastSeen=now
+        Indexer -> DHT: PutValue("/node/"+DID_A, PeerRecord A JSON)
+        Indexer -> DHT: PutValue("/name/"+name_A, DID_A)
+        Indexer -> DHT: PutValue("/peer/"+peer_id_A, DID_A)
+        DHT --> Indexer: ok
+    else Pas de heartbeat
+        Indexer -> NodeA: (erreur "no heartbeat", stream close)
+    end
+else Peer B publish its PeerRecord
+    NodeB -> Indexer: TempStream /opencloud/record/publish/1.0
+    NodeB -> Indexer: stream.Encode(PeerRecord B {DID_B, PeerID_B, PubKey_B, Expiry, Sig_B})
+
+    Indexer -> Indexer: Verify sig_B
+    Indexer -> Indexer: Check StreamRecords[Heartbeat][PeerID_B] existe
+
+    alt B Active Heartbeat
+        Indexer -> Indexer: StreamRecord B → DID_B, Record=PeerRecord B, LastSeen=now
+        Indexer -> DHT: PutValue("/node/"+DID_B, PeerRecord B JSON)
+        Indexer -> DHT: PutValue("/name/"+name_B, DID_B)
+        Indexer -> DHT: PutValue("/peer/"+peer_id_B, DID_B)
+        DHT --> Indexer: ok
+    else Pas de heartbeat
+        Indexer -> NodeB: (erreur "no heartbeat", stream close)
+    end
+end par
+
+note over DHT: DHT got \n"/node/DID_A" et "/node/DID_B"
+
+@enduml

docs/diagrams/05_indexer_get.puml

@@ -0,0 +1,51 @@
+@startuml
+title Indexer — Peer A discover Peer B (GetPeerRecord + handleNodeGet)
+
+participant "NATS A" as NATSA
+participant "DB Pair A (oc-lib)" as DBA
+participant "Node A" as NodeA
+participant "IndexerService (partagé)" as Indexer
+participant "DHT Kademlia" as DHT
+participant "NATS A (retour)" as NATSA2
+
+note over NodeA: Trigger : NATS PB_SEARCH PEER\nor callback SubscribeToSearch
+
+NodeA -> DBA: (PEER).Search(DID_B or PeerID_B)
+DBA --> NodeA: Local Peer B (if known) → solve DID_B + PeerID_B\nor use search value
+
+loop For every Peer A Binded Indexer 
+    NodeA -> Indexer: TempStream /opencloud/record/get/1.0 -> streamAI
+    NodeA -> Indexer: streamAI.Encode(GetValue{Key: DID_B, PeerID: PeerID_B})
+
+    Indexer -> Indexer: key = "/node/" + DID_B
+    Indexer -> DHT: SearchValue(ctx 10s, "/node/"+DID_B)
+    DHT --> Indexer: channel de bytes (PeerRecord B)
+
+    loop Pour every results in DHT
+        Indexer -> Indexer: read → PeerRecord B
+        alt PeerRecord.PeerID == PeerID_B
+            Indexer -> Indexer: resp.Found=true, resp.Records[PeerID_B]=PeerRecord B
+            Indexer -> Indexer: StreamRecord B.LastSeen = now (if active heartbeat)
+        end
+    end
+
+    Indexer -> NodeA: streamAI.Encode(GetResponse{Found:true, Records:{PeerID_B: PeerRecord B}})
+end
+
+loop For every PeerRecord founded
+    NodeA -> NodeA: rec.Verify() → valid B signature
+    NodeA -> NodeA: rec.ExtractPeer(ourDID_A, DID_B, pubKey_B)
+
+    alt ourDID_A == DID_B (it's our proper entry)
+        note over NodeA: Republish to refresh TTL
+        NodeA -> Indexer: publishPeerRecord(rec) [refresh 2 min]
+    end
+
+    NodeA -> NATSA2: SetNATSPub(CREATE_RESOURCE, {PEER, Peer B JSON,\nSearchAttr:"peer_id"})
+    NATSA2 -> DBA: Upsert Peer B in DB A
+    DBA --> NATSA2: ok
+end
+
+NodeA --> NodeA: []*peer.Peer → [Peer B]
+
+@enduml

docs/diagrams/06_native_registration.puml

@@ -0,0 +1,49 @@
+@startuml native_registration
+title Native Indexer — Indexer Subscription (StartNativeRegistration)
+
+participant "Indexer A" as IndexerA
+participant "Indexer B" as IndexerB
+participant "Native Indexer" as Native
+participant "DHT Kademlia" as DHT
+participant "GossipSub (oc-indexer-registry)" as PubSub
+
+note over IndexerA,IndexerB: At start + every 60s (RecommendedHeartbeatInterval)\\nStartNativeRegistration → RegisterWithNative
+
+par Indexer A subscribe
+    IndexerA -> IndexerA: fillRateFn()\\n= len(StreamRecords[HB]) / maxNodes
+
+    IndexerA -> IndexerA: Build IndexerRegistration{\\n  PeerID_A, Addr_A,\\n  Timestamp=now.UnixNano(),\\n  FillRate=fillRateFn(),\\n  PubKey, Signature\\n}\\nreg.Sign(h)
+
+    IndexerA -> Native: NewStream /opencloud/native/subscribe/1.0
+    IndexerA -> Native: stream.Encode(IndexerRegistration A)
+
+    Native -> Native: reg.Verify() — verify signature
+    Native -> Native: liveIndexerEntry{\\n  PeerID_A, Addr_A,\\n  ExpiresAt = now + IndexerTTL (90s),\\n  FillRate = reg.FillRate,\\n  PubKey, Signature\\n}
+    Native -> Native: liveIndexers[PeerID_A] = entry A
+    Native -> Native: knownPeerIDs[PeerID_A] = Addr_A
+
+    Native -> DHT: PutValue("/indexer/"+PeerID_A, entry A)
+    DHT --> Native: ok
+
+    Native -> PubSub: topic.Publish([]byte(PeerID_A))
+    note over PubSub: Gossip to other Natives\\n→ it adds PeerID_A to knownPeerIDs\\n→ refresh DHT next tick (30s)
+
+    IndexerA -> Native: stream.Close()
+
+else Indexer B subscribe
+    IndexerB -> IndexerB: fillRateFn() + reg.Sign(h)
+    IndexerB -> Native: NewStream /opencloud/native/subscribe/1.0
+    IndexerB -> Native: stream.Encode(IndexerRegistration B)
+
+    Native -> Native: reg.Verify() + liveIndexerEntry{FillRate=reg.FillRate, ExpiresAt=now+90s}
+    Native -> Native: liveIndexers[PeerID_B] = entry B
+    Native -> DHT: PutValue("/indexer/"+PeerID_B, entry B)
+    Native -> PubSub: topic.Publish([]byte(PeerID_B))
+    IndexerB -> Native: stream.Close()
+end par
+
+note over Native: liveIndexers = {PeerID_A: {FillRate:0.3}, PeerID_B: {FillRate:0.6}}\\nTTL 90s — IndexerTTL
+
+note over Native: Explicit unsubcrive on stop :\\nUnregisterFromNative → /opencloud/native/unsubscribe/1.0\\nNative close all now.
+
+@enduml

docs/diagrams/07_native_get_consensus.puml

@@ -0,0 +1,70 @@
+@startuml native_get_consensus
+title Native — ConnectToNatives : fetch pool + Phase 1 + Phase 2
+
+participant "Node / Indexer\\n(appelant)" as Caller
+participant "Native A" as NA
+participant "Native B" as NB
+participant "Indexer A\\n(stable voter)" as IA
+
+note over Caller: NativeIndexerAddresses configured\\nConnectToNatives() called from ConnectToIndexers
+
+== Step 1 : heartbeat to the native mesh (nativeHeartbeatOnce) ==
+Caller -> NA: SendHeartbeat /opencloud/heartbeat/1.0 
+Caller -> NB: SendHeartbeat /opencloud/heartbeat/1.0 
+
+== Step 2 : parrallel fetch pool (timeout 6s) ==
+par fetchIndexersFromNative — parallel
+    Caller -> NA: NewStream /opencloud/native/indexers/1.0\\nGetIndexersRequest{Count: maxIndexer, From: PeerID}
+    NA -> NA: reachableLiveIndexers()\\ntri par w(F) = fillRate×(1−fillRate) desc
+    NA --> Caller: GetIndexersResponse{Indexers:[IA,IB], FillRates:{IA:0.3,IB:0.6}}
+else
+    Caller -> NB: NewStream /opencloud/native/indexers/1.0
+    NB -> NB: reachableLiveIndexers()
+    NB --> Caller: GetIndexersResponse{Indexers:[IA,IB], FillRates:{IA:0.3,IB:0.6}}
+end par
+
+note over Caller: Fusion → candidates=[IA,IB]\\nisFallback=false
+
+alt isFallback=true (native give themself as Fallback indexer)
+    note over Caller: resolvePool : avoid consensus\\nadmittedAt = Now (zero)\\nStaticIndexers = {native_addr}
+else isFallback=false → Phase 1 + Phase 2
+    == Phase 1 — clientSideConsensus (timeout 3s/natif, 4s total) ==
+    par Parralel Consensus
+        Caller -> NA: NewStream /opencloud/native/consensus/1.0\\nConsensusRequest{Candidates:[IA,IB]}
+        NA -> NA: compare with clean liveIndexers
+        NA --> Caller: ConsensusResponse{Trusted:[IA,IB], Suggestions:[]}
+    else
+        Caller -> NB: NewStream /opencloud/native/consensus/1.0
+        NB --> Caller: ConsensusResponse{Trusted:[IA], Suggestions:[IC]}
+    end par
+
+    note over Caller: IA → 2/2 votes → confirmed ✓\\nIB → 1/2 vote → refusé ✗\\nIC → suggestion → round 2 if confirmed < maxIndexer
+
+    alt confirmed < maxIndexer && available suggestions 
+        note over Caller: Round 2 — rechallenge with confirmed + sample(suggestions)\\nclientSideConsensus([IA, IC])
+    end
+
+    note over Caller: admittedAt = time.Now()
+
+    == Phase 2 — indexerLivenessVote (timeout 3s/votant, 4s total) ==
+    note over Caller: Search for stable voters in Subscribed Indexers\\nAdmittedAt != zero && age >= MinStableAge (2min)
+
+    alt Stable Voters are available
+        par Phase 2 parrallel
+            Caller -> IA: NewStream /opencloud/indexer/consensus/1.0\\nIndexerConsensusRequest{Candidates:[IA]}
+            IA -> IA: StreamRecords[ProtocolHB][candidate]\\ntime.Since(LastSeen) <= 120s && LastScore >= 30.0
+            IA --> Caller: IndexerConsensusResponse{Alive:[IA]}
+        end par
+        note over Caller: alive IA confirmed per quorum > 0.5\\npool = {IA}
+    else No voters are stable (startup)
+        note over Caller: Phase 1 keep directly\\n(no indexer reaches MinStableAge)
+    end
+
+    == Replacement pool ==
+    Caller -> Caller: replaceStaticIndexers(pool, admittedAt)\\nStaticIndexerMeta[IA].AdmittedAt = admittedAt
+end
+
+== Étape 3 : heartbeat to indexers pool (ConnectToIndexers) ==
+Caller -> Caller: SendHeartbeat /opencloud/heartbeat/1.0\\nvers StaticIndexers
+
+@enduml

docs/diagrams/08_nats_create_update_peer.puml

@@ -0,0 +1,38 @@
+@startuml
+title NATS — CREATE_RESOURCE : Peer A crée/met à jour Peer B (connexion on-demand)
+
+participant "App Peer A (oc-api)" as AppA
+participant "NATS A" as NATSA
+participant "Node A" as NodeA
+participant "StreamService A" as StreamA
+participant "Node B" as NodeB
+participant "DB Peer A (oc-lib)" as DBA
+
+note over AppA: Peer B est découvert\n(via indexeur ou manuellement)
+
+AppA -> NATSA: Publish(CREATE_RESOURCE, {\n  FromApp:"oc-api",\n  Datatype:PEER,\n  Payload: Peer B {StreamAddress_B, Relation:PARTNER}\n})
+
+NATSA -> NodeA: ListenNATS callback → CREATE_RESOURCE
+
+NodeA -> NodeA: json.Unmarshal(payload) → peer.Peer B
+NodeA -> NodeA: if peer == self ? → skip
+
+alt peer B.Relation == PARTNER
+    NodeA -> StreamA: ToPartnerPublishEvent(ctx, PB_CREATE, PEER, payload)
+    note over StreamA: Pas de heartbeat permanent.\nConnexion on-demand : ouvre un stream,\nenvoie l'événement, ferme ou laisse expirer.
+    StreamA -> StreamA: PublishCommon(PEER, user, B.PeerID,\n  ProtocolUpdateResource, selfPeerJSON)
+    StreamA -> NodeB: TempStream /opencloud/resource/update/1.0\n(TTL court, fermé après envoi)
+    StreamA -> NodeB: stream.Encode(Event{from, datatype, payload})
+    NodeB --> StreamA: (traitement applicatif)
+
+else peer B.Relation != PARTNER (révocation / blacklist)
+    note over NodeA: Ferme tous les streams existants vers Peer B
+    loop Pour chaque stream actif vers PeerID_B
+        NodeA -> StreamA: streams[proto][PeerID_B].Stream.Close()
+        NodeA -> StreamA: delete(streams[proto], PeerID_B)
+    end
+end
+
+NodeA -> DBA: (pas d'écriture directe — seule l'app source gère la DB)
+
+@enduml

docs/diagrams/09_nats_propagation.puml

@@ -0,0 +1,73 @@
+@startuml
+title NATS — PROPALGATION_EVENT : Peer A propalgate to Peer B lookup
+
+participant "App Pair A" as AppA
+participant "NATS A" as NATSA
+participant "Node A" as NodeA
+participant "StreamService A" as StreamA
+participant "Node Partner B" as PeerB
+participant "Node C" as PeerC
+
+participant "NATS B" as NATSB
+participant "DB Pair B (oc-lib)" as DBB
+
+note over App: only our proper resource (db data) can be propalgate : creator_id==self
+
+AppA -> NATSA: Publish(PROPALGATION_EVENT, {Action, DataType, Payload})
+NATSA -> NodeA: ListenNATS callback → PROPALGATION_EVENT
+NodeA -> NodeA: propalgate from himself ? → no, continue
+NodeA -> NodeA: json.Unmarshal → PropalgationMessage{Action, DataType, Payload}
+
+alt Action == PB_DELETE
+    NodeA -> StreamA: ToPartnerPublishEvent(PB_DELETE, dt, user, payload)
+    StreamA -> StreamA: searchPeer(PARTNER) → [Peer Partner B, ...]
+    StreamA -> NodeB: write(PeerID_B, addr_B, dt, user, payload, ProtocolDeleteResource)
+    note over NodeB: /opencloud/resource/delete/1.0
+
+    NodeB -> NodeB: handleEventFromPartner(evt, ProtocolDeleteResource)
+    NodeB -> NATSB: SetNATSPub(REMOVE_RESOURCE, {DataType, resource JSON})
+    NATSB -> DBB: Suppress ressource into DB B
+
+else Action == PB_UPDATE (per ProtocolUpdateResource)
+    NodeA -> StreamA: ToPartnerPublishEvent(PB_UPDATE, dt, user, payload)
+    StreamA -> StreamA: searchPeer(PARTNER) → [Peer Partner B, ...]
+    StreamA -> NodeB: write → /opencloud/resource/update/1.0
+    NodeB -> NATSB: SetNATSPub(CREATE_RESOURCE, {DataType, resource JSON})
+    NATSB -> DBB: Upsert ressource dans DB B
+
+else Action == PB_CREATE (per ProtocolCreateResource)
+    NodeA -> StreamA: ToPartnerPublishEvent(PB_UPDATE, dt, user, payload)
+    StreamA -> StreamA: searchPeer(PARTNER) → [Peer Partner B, ...]
+    StreamA -> NodeB: write → /opencloud/resource/create/1.0
+    NodeB -> NATSB: SetNATSPub(CREATE_RESOURCE, {DataType, resource JSON})
+    NATSB -> DBB: Create ressource dans DB B
+
+else Action == PB_CONSIDERS (is a considering a previous action, such as planning or creating resource)
+    NodeA -> NodeA: Unmarshal → executionConsidersPayload{PeerIDs:[PeerID_B, ...]}
+    loop For every peer_id targeted
+        NodeA -> StreamA: PublishCommon(dt, user, PeerID_B, ProtocolConsidersResource, payload)
+        StreamA -> NodeB: write → /opencloud/resource/considers/1.0
+        NodeB -> NodeB: passConsidering(evt)
+        NodeB -> NATSB: SetNATSPub(PROPALGATION_EVENT, {PB_CONSIDERS, dt, payload})
+        NATSB -> DBB: (treat per emmitters app of a previous action on NATS B)
+    end
+
+else Action == PB_CLOSE_PLANNER
+    NodeA -> NodeA: Unmarshal → {peer_id: PeerID_B}
+    NodeA -> StreamA: Streams[ProtocolSendPlanner][PeerID_B].Stream.Close()
+    NodeA -> StreamA: delete(Streams[ProtocolSendPlanner], PeerID_B)
+
+else Action == PB_SEARCH + DataType == PEER
+    NodeA -> NodeA: read → {search: "..."}
+    NodeA -> NodeA: GetPeerRecord(ctx, search)
+    note over NodeA: Resolved per DB A or Indexer + DHT
+    NodeA -> NATSA: SetNATSPub(SEARCH_EVENT, {PEER, PeerRecord JSON})
+    NATSA -> NATSA: (AppA retrieve results)
+
+else Action == PB_SEARCH + other DataType
+    NodeA -> NodeA: read → {type:"all"|"known"|"partner", search:"..."}
+    NodeA -> NodeA: PubSubService.SearchPublishEvent(ctx, dt, type, user, search)
+    note over NodeA: Watch after pubsub_search & stream_search diagrams
+end
+
+@enduml

docs/diagrams/10_pubsub_search.puml

@@ -0,0 +1,58 @@
+@startuml
+title PubSub — Gossip Global search (type "all") : Peer A searching, Peer B answering
+
+participant "App UI A" as UIA
+participant "App Peer A" as AppA
+participant "NATS A" as NATSA
+participant "Node A" as NodeA
+participant "StreamService A" as StreamA
+participant "PubSubService A" as PubSubA
+participant "GossipSub libp2p (mesh)" as GossipSub
+participant "Node B" as NodeB
+participant "PubSubService B" as PubSubB
+participant "DB Peer B (oc-lib)" as DBB
+participant "StreamService B" as StreamB
+
+UIA -> AppA: websocket subscription, sending {type:"all", search:"search"} in query
+
+AppA -> NATSA: Publish(PROPALGATION_EVENT, {PB_SEARCH, type:"all", search:"search"})
+NATSA -> NodeA: ListenNATS → PB_SEARCH (type "all")
+
+NodeA -> PubSubA: SearchPublishEvent(ctx, dt, "all", user, "search")
+PubSubA -> PubSubA: publishEvent(PB_SEARCH, user, {search:"search"})
+PubSubA -> PubSubA: priv_A.Sign(event body) → sig
+PubSubA -> PubSubA: Build Event{Type:"search", From:DID_A, Payload:{search:"search"}, Sig}
+
+PubSubA -> GossipSub: topic.Join("search")
+PubSubA -> GossipSub: topic.Publish(ctx, json(Event))
+
+GossipSub --> NodeB: Propalgate message (gossip mesh)
+
+NodeB -> PubSubB: subscribeEvents listen  to topic "search#"
+PubSubB -> PubSubB: read → Event{From: DID_A}
+
+PubSubB -> NodeB: GetPeerRecord(ctx, DID_A)
+note over NodeB: Resolve Peer A per DB B or ask to Indexer
+NodeB --> PubSubB: Peer A {PublicKey_A, Relation, ...}
+
+PubSubB -> PubSubB: event.Verify(Peer A) → valid sig_A
+PubSubB -> PubSubB: handleEventSearch(ctx, evt, PB_SEARCH)
+
+PubSubB -> StreamB: SendResponse(Peer A, evt)
+StreamB -> DBB: Search(COMPUTE + STORAGE + ..., filters{creator=self, access=PUBLIC OR partnerships[PeerID_A]}, search="search")
+DBB --> StreamB: [Resource1, Resource2, ...]
+
+loop For every matching resource, only match our own resource creator_id=self_did
+    StreamB -> StreamB: write(PeerID_A, addr_A, dt, resource JSON, ProtocolSearchResource)
+    StreamB -> StreamA: NewStream /opencloud/resource/search/1.0
+    StreamB -> StreamA: stream.Encode(Event{Type:search, From:DID_B, DataType, Payload:resource})
+end
+
+StreamA -> StreamA: readLoop → handleEvent(ProtocolSearchResource, evt)
+StreamA -> StreamA: retrieveResponse(evt)
+StreamA -> NATSA: SetNATSPub(SEARCH_EVENT, {DataType, resource JSON})
+NATSA -> AppA: Search results from Peer B
+
+AppA -> UIA: emit on websocket
+
+@enduml

docs/diagrams/11_stream_search.puml

@@ -0,0 +1,54 @@
+@startuml
+title Stream — Direct search (type "known"/"partner") : Peer A → Peer B
+
+participant "App UI A" as UIA
+participant "App Pair A" as AppA
+participant "NATS A" as NATSA
+participant "Node A" as NodeA
+participant "PubSubService A" as PubSubA
+participant "StreamService A" as StreamA
+participant "DB Pair A (oc-lib)" as DBA
+participant "Node B" as NodeB
+participant "StreamService B" as StreamB
+participant "DB Pair B (oc-lib)" as DBB
+
+UIA -> AppA: websocket subscription, sending {type:"all", search:"search"} in query
+
+AppA -> NATSA: Publish(PROPALGATION_EVENT, {PB_SEARCH, type:"partner", search:"gpu"})
+NATSA -> NodeA: ListenNATS → PB_SEARCH (type "partner")
+NodeA -> PubSubA: SearchPublishEvent(ctx, dt, "partner", user, "gpu")
+
+PubSubA -> StreamA: SearchPartnersPublishEvent(dt, user, "gpu")
+StreamA -> DBA: Search(PEER, PARTNER) + PeerIDS config
+DBA --> StreamA: [Peer B, ...]
+
+loop Pour chaque pair partenaire (Pair B)
+    StreamA -> StreamA: write(PeerID_B, addr_B, dt, user, payload, ProtocolSearchResource)
+    StreamA -> NodeB: TempStream /opencloud/resource/search/1.0
+    StreamA -> NodeB: stream.Encode(Event{Type:search, From:DID_A, DataType, Payload:{search:"gpu"}})
+
+    NodeB -> StreamB: HandleResponse(stream) → readLoop
+    StreamB -> StreamB: handleEvent(ProtocolSearchResource, evt)
+    StreamB -> StreamB: handleEventFromPartner(evt, ProtocolSearchResource)
+
+    alt evt.DataType == -1 (toutes ressources)
+        StreamB -> DBA: Search(PEER, evt.From=DID_A)
+        note over StreamB: Local Resolving (DB) or GetPeerRecord (Indexer Way)
+        StreamB -> StreamB: SendResponse(Peer A, evt)
+        StreamB -> DBB: Search(ALL_RESOURCES, filter{creator=B + public OR partner A + search:"gpu"})
+        DBB --> StreamB: [Resource1, Resource2, ...]
+    else evt.DataType specified
+        StreamB -> DBB: Search(DataType, filter{creator=B + access + search:"gpu"})
+        DBB --> StreamB: [Resource1, ...]
+    end
+
+    loop Pour chaque ressource
+        StreamB -> StreamA: write(PeerID_A, addr_A, dt, resource JSON, ProtocolSearchResource)
+        StreamA -> StreamA: readLoop → handleEvent(ProtocolSearchResource, evt)
+        StreamA -> StreamA: retrieveResponse(evt)
+        StreamA -> NATSA: SetNATSPub(SEARCH_EVENT, {DataType, resource JSON})
+        NATSA -> AppA: Peer B results
+        AppA -> UIA: emit on websocket
+    end
+end
+@enduml

docs/diagrams/12_partner_heartbeat.puml

@@ -0,0 +1,60 @@
+@startuml
+title Stream — Partner Heartbeat et propagation CRUD Pair A ↔ Pair B
+
+participant "DB Pair A (oc-lib)" as DBA
+participant "StreamService A" as StreamA
+participant "Node A" as NodeA
+participant "Node B" as NodeB
+participant "StreamService B" as StreamB
+participant "NATS B" as NATSB
+participant "DB Pair B (oc-lib)" as DBB
+participant "NATS A" as NATSA
+
+note over StreamA: Démarrage → connectToPartners()
+
+StreamA -> DBA: Search(PEER, PARTNER) + PeerIDS config
+DBA --> StreamA: [Peer B, ...]
+
+StreamA -> NodeB: Connect (libp2p)
+StreamA -> NodeB: NewStream /opencloud/resource/heartbeat/partner/1.0
+StreamA -> NodeB: json.Encode(Heartbeat{Name_A, DID_A, PeerID_A, IndexersBinded_A})
+
+NodeB -> StreamB: HandlePartnerHeartbeat(stream)
+StreamB -> StreamB: CheckHeartbeat → bandwidth challenge
+StreamB -> StreamA: Echo(payload)
+StreamB -> StreamB: streams[ProtocolHeartbeatPartner][PeerID_A] = {DID_A, Expiry=now+10s}
+
+StreamA -> StreamA: streams[ProtocolHeartbeatPartner][PeerID_B] = {DID_B, Expiry=now+10s}
+
+note over StreamA,StreamB: Stream partner long-lived établi\nGC toutes les 8s (StreamService A)\nGC toutes les 30s (StreamService B)
+
+note over NATSA: Pair A reçoit PROPALGATION_EVENT{PB_DELETE, dt:"storage", payload:res}
+
+NATSA -> NodeA: ListenNATS → ToPartnerPublishEvent(PB_DELETE, dt, user, payload)
+NodeA -> StreamA: ToPartnerPublishEvent(ctx, PB_DELETE, dt_storage, user, payload)
+
+alt dt == PEER (mise à jour relation partenaire)
+    StreamA -> StreamA: json.Unmarshal → peer.Peer B updated
+    alt B.Relation == PARTNER
+        StreamA -> NodeB: ConnectToPartner(B.StreamAddress)
+        note over StreamA,NodeB: Reconnexion heartbeat si relation upgrade
+    else B.Relation != PARTNER
+        loop Tous les protocoles
+            StreamA -> StreamA: delete(streams[proto][PeerID_B])
+            StreamA -> NodeB: (streams fermés)
+        end
+    end
+else dt != PEER (ressource ordinaire)
+    StreamA -> DBA: Search(PEER, PARTNER) → [Pair B, ...]
+    loop Pour chaque protocole partner (Create/Update/Delete)
+        StreamA -> NodeB: write(PeerID_B, addr_B, dt, user, payload, ProtocolDeleteResource)
+        note over NodeB: /opencloud/resource/delete/1.0
+
+        NodeB -> StreamB: HandleResponse → readLoop
+        StreamB -> StreamB: handleEventFromPartner(evt, ProtocolDeleteResource)
+        StreamB -> NATSB: SetNATSPub(REMOVE_RESOURCE, {DataType, resource JSON})
+        NATSB -> DBB: Supprimer ressource dans DB B
+    end
+end
+
+@enduml

docs/diagrams/13_planner_flow.puml

@@ -0,0 +1,51 @@
+@startuml
+title Stream — Session Planner : Pair A demande le plan de Pair B
+
+participant "App Pair A (oc-booking)" as AppA
+participant "NATS A" as NATSA
+participant "Node A" as NodeA
+participant "StreamService A" as StreamA
+participant "Node B" as NodeB
+participant "StreamService B" as StreamB
+participant "DB Pair B (oc-lib)" as DBB
+participant "NATS B" as NATSB
+
+' Ouverture session planner
+AppA -> NATSA: Publish(PROPALGATION_EVENT, {PB_PLANNER, peer_id:PeerID_B, payload:{}})
+NATSA -> NodeA: ListenNATS → PB_PLANNER
+
+NodeA -> NodeA: Unmarshal → {peer_id: PeerID_B, payload: {}}
+NodeA -> StreamA: PublishCommon(nil, user, PeerID_B, ProtocolSendPlanner, {})
+note over StreamA: WaitResponse=true, TTL=24h\nStream long-lived vers Pair B
+StreamA -> NodeB: TempStream /opencloud/resource/planner/1.0
+StreamA -> NodeB: json.Encode(Event{Type:planner, From:DID_A, Payload:{}})
+
+NodeB -> StreamB: HandleResponse → readLoop(ProtocolSendPlanner)
+StreamB -> StreamB: handleEvent(ProtocolSendPlanner, evt)
+StreamB -> StreamB: sendPlanner(evt)
+
+alt evt.Payload vide (requête initiale)
+    StreamB -> DBB: planner.GenerateShallow(AdminRequest)
+    DBB --> StreamB: plan (shallow booking plan de Pair B)
+    StreamB -> StreamA: PublishCommon(nil, user, DID_A, ProtocolSendPlanner, planJSON)
+    StreamA -> NodeA: json.Encode(Event{plan de B})
+    NodeA -> NATSA: (forwardé à AppA via SEARCH_EVENT ou PLANNER event)
+    NATSA -> AppA: Plan de Pair B
+else evt.Payload non vide (mise à jour planner)
+    StreamB -> StreamB: m["peer_id"] = evt.From (DID_A)
+    StreamB -> NATSB: SetNATSPub(PROPALGATION_EVENT, {PB_PLANNER, peer_id:DID_A, payload:plan})
+    NATSB -> DBB: (oc-booking traite le plan sur NATS B)
+end
+
+' Fermeture session planner
+AppA -> NATSA: Publish(PROPALGATION_EVENT, {PB_CLOSE_PLANNER, peer_id:PeerID_B})
+NATSA -> NodeA: ListenNATS → PB_CLOSE_PLANNER
+
+NodeA -> NodeA: Unmarshal → {peer_id: PeerID_B}
+NodeA -> StreamA: Mu.Lock()
+NodeA -> StreamA: Streams[ProtocolSendPlanner][PeerID_B].Stream.Close()
+NodeA -> StreamA: delete(Streams[ProtocolSendPlanner], PeerID_B)
+NodeA -> StreamA: Mu.Unlock()
+note over StreamA,NodeB: Stream planner fermé — session terminée
+
+@enduml

docs/diagrams/14_native_offload_gc.puml

@@ -0,0 +1,61 @@
+@startuml
+title Native Indexer — Boucles background (offload, DHT refresh, GC streams)
+
+participant "Indexer A (enregistré)" as IndexerA
+participant "Indexer B (enregistré)" as IndexerB
+participant "Native Indexer" as Native
+participant "DHT Kademlia" as DHT
+participant "Node A (responsible peer)" as NodeA
+
+note over Native: runOffloadLoop — toutes les 30s
+
+loop Toutes les 30s
+    Native -> Native: len(responsiblePeers) > 0 ?
+    note over Native: responsiblePeers = peers pour lesquels\nle native a fait selfDelegate (aucun indexer dispo)
+    alt Des responsible peers existent (ex: Node A)
+        Native -> Native: reachableLiveIndexers()
+        note over Native: Filtre liveIndexers par TTL\nping PeerIsAlive pour chaque candidat
+        alt Indexers A et B maintenant joignables
+            Native -> Native: responsiblePeers = {} (libère Node A et autres)
+            note over Native: Node A se reconnectera\nau prochain ConnectToNatives
+        else Toujours aucun indexer
+            note over Native: Node A reste sous la responsabilité du native
+        end
+    end
+end
+
+note over Native: refreshIndexersFromDHT — toutes les 30s
+
+loop Toutes les 30s
+    Native -> Native: Collecter tous les knownPeerIDs\n= {PeerID_A, PeerID_B, ...}
+    loop Pour chaque PeerID connu
+        Native -> Native: liveIndexers[PeerID] encore frais ?
+        alt Entrée manquante ou expirée
+            Native -> DHT: SearchValue(ctx 5s, "/indexer/"+PeerID)
+            DHT --> Native: channel de bytes
+            loop Pour chaque résultat DHT
+                Native -> Native: Unmarshal → liveIndexerEntry
+                Native -> Native: Garder le meilleur (ExpiresAt le plus récent, valide)
+            end
+            Native -> Native: liveIndexers[PeerID] = best entry
+            note over Native: "native: refreshed indexer from DHT"
+        end
+    end
+end
+
+note over Native: LongLivedStreamRecordedService GC — toutes les 30s
+
+loop Toutes les 30s
+    Native -> Native: gc() — lock StreamRecords[Heartbeat]
+    loop Pour chaque StreamRecord (Indexer A, B, ...)
+        Native -> Native: now > rec.Expiry ?\nOU timeSince(LastSeen) > 2×TTL restant ?
+        alt Pair périmé (ex: Indexer B disparu)
+            Native -> Native: Supprimer Indexer B de TOUS les maps de protocoles
+            note over Native: Stream heartbeat fermé\nliveIndexers[PeerID_B] expirera naturellement
+        end
+    end
+end
+
+note over IndexerA: Indexer A continue à heartbeater normalement\net reste dans StreamRecords + liveIndexers
+
+@enduml

docs/diagrams/15_archi_config_nominale.puml

@@ -0,0 +1,49 @@
+@startuml 15_archi_config_nominale
+skinparam componentStyle rectangle
+skinparam backgroundColor white
+skinparam defaultTextAlignment center
+
+title C1 — Topologie nominale\n2 natifs · 2 indexeurs · 2 nœuds
+
+package "Couche 1 — Mesh natif" #E8F4FD {
+  component "Native A\n(hub autoritaire)" as NA #AED6F1
+  component "Native B\n(hub autoritaire)" as NB #AED6F1
+  NA <--> NB : heartbeat /opencloud/heartbeat/1.0 (20s)\n+ gossip PubSub oc-indexer-registry
+}
+
+package "Couche 2 — Indexeurs" #E9F7EF {
+  component "Indexer A\n(DHT server)" as IA #A9DFBF
+  component "Indexer B\n(DHT server)" as IB #A9DFBF
+}
+
+package "Couche 3 — Nœuds" #FEFBD8 {
+  component "Node 1" as N1 #FAF0BE
+  component "Node 2" as N2 #FAF0BE
+}
+
+' Enregistrements (one-shot, 60s)
+IA -[#117A65]--> NA : subscribe signé (60s)\n/opencloud/native/subscribe/1.0
+IA -[#117A65]--> NB : subscribe signé (60s)
+IB -[#117A65]--> NA : subscribe signé (60s)
+IB -[#117A65]--> NB : subscribe signé (60s)
+
+' Heartbeats indexeurs → natifs (long-lived, 20s)
+IA -[#27AE60]..> NA : heartbeat (20s)
+IA -[#27AE60]..> NB : heartbeat (20s)
+IB -[#27AE60]..> NA : heartbeat (20s)
+IB -[#27AE60]..> NB : heartbeat (20s)
+
+' Heartbeats nœuds → indexeurs (long-lived, 20s)
+N1 -[#E67E22]--> IA : heartbeat long-lived (20s)\n/opencloud/heartbeat/1.0
+N1 -[#E67E22]--> IB : heartbeat long-lived (20s)
+N2 -[#E67E22]--> IA : heartbeat long-lived (20s)
+N2 -[#E67E22]--> IB : heartbeat long-lived (20s)
+
+note as Legend
+  Légende :
+  ──► enregistrement one-shot (signé)
+  ···► heartbeat long-lived (20s)
+  ──► heartbeat nœud → indexeur (20s)
+end note
+
+@enduml

docs/diagrams/16_archi_config_seed.puml

@@ -0,0 +1,38 @@
+@startuml 16_archi_config_seed
+skinparam componentStyle rectangle
+skinparam backgroundColor white
+skinparam defaultTextAlignment center
+
+title C2 — Mode seed (sans natif)\nIndexerAddresses seuls · AdmittedAt = zero
+
+package "Couche 2 — Indexeurs seeds" #E9F7EF {
+  component "Indexer A\n(seed, AdmittedAt=0)" as IA #A9DFBF
+  component "Indexer B\n(seed, AdmittedAt=0)" as IB #A9DFBF
+}
+
+package "Couche 3 — Nœuds" #FEFBD8 {
+  component "Node 1" as N1 #FAF0BE
+  component "Node 2" as N2 #FAF0BE
+}
+
+note as NNative #FFDDDD
+  Aucun natif configuré.
+  AdmittedAt = zero → IsStableVoter() = false
+  Phase 2 sans votants : Phase 1 conservée directement.
+  Risque D20 : circularité du trust (seeds se valident mutuellement).
+end note
+
+' Heartbeats nœuds → indexeurs seeds
+N1 -[#E67E22]--> IA : heartbeat long-lived (20s)
+N1 -[#E67E22]--> IB : heartbeat long-lived (20s)
+N2 -[#E67E22]--> IA : heartbeat long-lived (20s)
+N2 -[#E67E22]--> IB : heartbeat long-lived (20s)
+
+note bottom of IA
+  Après 2s : goroutine async
+  fetchNativeFromIndexers → ?
+  Si natif trouvé → ConnectToNatives (upgrade vers C1)
+  Si non → mode indexeur pur (D20 actif)
+end note
+
+@enduml

docs/diagrams/17_startup_consensus_phase1_phase2.puml

@@ -0,0 +1,63 @@
+@startuml 17_startup_consensus_phase1_phase2
+title Démarrage avec natifs — Phase 1 (admission) + Phase 2 (vivacité)
+
+participant "Node / Indexer\n(appelant)" as Caller
+participant "Native A" as NA
+participant "Native B" as NB
+participant "Indexer A" as IA
+participant "Indexer B" as IB
+
+note over Caller: ConnectToNatives()\nNativeIndexerAddresses configuré
+
+== Étape 0 : heartbeat vers le mesh natif ==
+Caller -> NA: SendHeartbeat /opencloud/heartbeat/1.0 (goroutine longue durée)
+Caller -> NB: SendHeartbeat /opencloud/heartbeat/1.0 (goroutine longue durée)
+
+== Étape 1 : fetch pool en parallèle ==
+par Fetch parallèle (timeout 6s)
+    Caller -> NA: GET /opencloud/native/indexers/1.0\nGetIndexersRequest{Count: max, FillRates demandés}
+    NA -> NA: reachableLiveIndexers()\ntri par w(F) = fillRate×(1−fillRate)
+    NA --> Caller: GetIndexersResponse{Indexers:[IA,IB], FillRates:{IA:0.3, IB:0.6}}
+else
+    Caller -> NB: GET /opencloud/native/indexers/1.0
+    NB -> NB: reachableLiveIndexers()
+    NB --> Caller: GetIndexersResponse{Indexers:[IA,IB], FillRates:{IA:0.3, IB:0.6}}
+end par
+
+note over Caller: Fusion + dédup → candidates = [IA, IB]\nisFallback = false
+
+== Étape 2a : Phase 1 — Admission native (clientSideConsensus) ==
+par Consensus parallèle (timeout 3s par natif, 4s total)
+    Caller -> NA: /opencloud/native/consensus/1.0\nConsensusRequest{Candidates:[IA,IB]}
+    NA -> NA: croiser avec liveIndexers
+    NA --> Caller: ConsensusResponse{Trusted:[IA,IB], Suggestions:[]}
+else
+    Caller -> NB: /opencloud/native/consensus/1.0\nConsensusRequest{Candidates:[IA,IB]}
+    NB -> NB: croiser avec liveIndexers
+    NB --> Caller: ConsensusResponse{Trusted:[IA], Suggestions:[IC]}
+end par
+
+note over Caller: IA → 2/2 votes → confirmé ✓\nIB → 1/2 vote → refusé ✗\nadmittedAt = time.Now()
+
+== Étape 2b : Phase 2 — Liveness vote (indexerLivenessVote) ==
+note over Caller: Cherche votants stables dans StaticIndexerMeta\n(AdmittedAt != zero, age >= MinStableAge=2min)
+
+alt Votants stables disponibles
+    par Phase 2 parallèle (timeout 3s)
+        Caller -> IA: /opencloud/indexer/consensus/1.0\nIndexerConsensusRequest{Candidates:[IA]}
+        IA -> IA: vérifier StreamRecords[ProtocolHB][candidate]\nLastSeen ≤ 2×60s && LastScore ≥ 30
+        IA --> Caller: IndexerConsensusResponse{Alive:[IA]}
+    end par
+    note over Caller: IA confirmé vivant par quorum > 0.5
+else Aucun votant stable (premier démarrage)
+    note over Caller: Phase 1 conservée directement\n(aucun votant MinStableAge atteint)
+end
+
+== Étape 3 : remplacement StaticIndexers ==
+Caller -> Caller: replaceStaticIndexers(pool={IA}, admittedAt)\nStaticIndexerMeta[IA].AdmittedAt = time.Now()
+
+== Étape 4 : heartbeat long-lived vers pool ==
+Caller -> IA: SendHeartbeat /opencloud/heartbeat/1.0 (goroutine longue durée)
+note over Caller: Pool actif. NudgeIndexerHeartbeat()
+
+@enduml

docs/diagrams/18_startup_seed_discovers_native.puml

@@ -0,0 +1,51 @@
+@startuml 18_startup_seed_discovers_native
+title C2 → C1 — Seed découvre un natif (upgrade async)
+
+participant "Node / Indexer\\n(seed mode)" as Caller
+participant "Indexer A\\n(seed)" as IA
+participant "Indexer B\\n(seed)" as IB
+participant "Native A\\n(découvert)" as NA
+
+note over Caller: Démarrage sans NativeIndexerAddresses\\nStaticIndexers = [IA, IB] (AdmittedAt=0)
+
+== Phase initiale seed ==
+Caller -> IA: SendHeartbeat /opencloud/heartbeat/1.0 (goroutine longue durée)
+Caller -> IB: SendHeartbeat /opencloud/heartbeat/1.0 (goroutine longue durée)
+
+note over Caller: Pool actif en mode seed.\\nIsStableVoter() = false (AdmittedAt=0)\\nPhase 2 sans votants → Phase 1 conservée.
+
+== Goroutine async après 2s ==
+note over Caller: time.Sleep(2s)\\nfetchNativeFromIndexers()
+
+Caller -> IA: GET /opencloud/indexer/natives/1.0
+IA --> Caller: GetNativesResponse{Natives:[NA]}
+
+note over Caller: Natif découvert : NA\\nAppel ConnectToNatives([NA])
+
+== Upgrade vers mode nominal (ConnectToNatives) ==
+Caller -> NA: SendHeartbeat /opencloud/heartbeat/1.0 (goroutine longue durée)
+
+par Fetch pool depuis natif (timeout 6s)
+    Caller -> NA: GET /opencloud/native/indexers/1.0\\nGetIndexersRequest{Count: max}
+    NA -> NA: reachableLiveIndexers()\\ntri par w(F) = fillRate×(1−fillRate)
+    NA --> Caller: GetIndexersResponse{Indexers:[IA,IB], FillRates:{IA:0.4, IB:0.6}}
+end par
+
+note over Caller: candidates = [IA, IB], isFallback = false
+
+par Consensus Phase 1 (timeout 3s)
+    Caller -> NA: /opencloud/native/consensus/1.0\\nConsensusRequest{Candidates:[IA,IB]}
+    NA -> NA: croiser avec liveIndexers
+    NA --> Caller: ConsensusResponse{Trusted:[IA,IB], Suggestions:[]}
+end par
+
+note over Caller: IA ✓ IB ✓ (1/1 vote)\\nadmittedAt = time.Now()
+
+note over Caller: Aucun votant stable (AdmittedAt vient d'être posé)\\nPhase 2 sautée → Phase 1 conservée directement
+
+== Remplacement pool ==
+Caller -> Caller: replaceStaticIndexers(pool={IA,IB}, admittedAt)\\nStaticIndexerMeta[IA].AdmittedAt = time.Now()\\nStaticIndexerMeta[IB].AdmittedAt = time.Now()
+
+note over Caller: Pool upgradé dans la map partagée StaticIndexers.\\nLa goroutine heartbeat existante (démarrée en mode seed)\\ndétecte les nouveaux membres sur le prochain tick (20s).\\nAucune nouvelle goroutine créée.\\nIsStableVoter() deviendra true après MinStableAge (2min).\\nD20 (circularité seeds) éliminé.
+
+@enduml

docs/diagrams/19_failure_indexer_crash.puml

@@ -0,0 +1,55 @@
+@startuml failure_indexer_crash
+title Indexer Failure → replenish from a Native
+
+participant "Node" as N
+participant "Indexer A (alive)" as IA
+participant "Indexer B (crashed)" as IB
+participant "Native A" as NA
+participant "Native B" as NB
+
+note over N: Active Pool : Indexers = [IA, IB]\\nActive Heartbeat long-lived from IA & IB
+
+== IB Failure ==
+IB ->x N: heartbeat fails (sendHeartbeat err)
+note over N: doTick() dans SendHeartbeat triggers failure\\n→ delete(Indexers[IB])\\n→ delete(IndexerMeta[IB])\\nUnique heartbeat goroutine continue
+
+N -> N: go replenishIndexersFromNative(need=1)
+
+note over N: Reduced Pool to 1 indexers.\\nReplenish triggers with goroutine.
+
+== Replenish from natives ==
+par Fetch pool (timeout 6s)
+    N -> NA: GET /opencloud/native/indexers/1.0\\nGetIndexersRequest{Count: max}
+    NA -> NA: reachableLiveIndexers()\\n(IB absent because of a expired heartbeat)
+    NA --> N: GetIndexersResponse{Indexers:[IA,IC], FillRates:{IA:0.4,IC:0.2}}
+else
+    N -> NB: GET /opencloud/native/indexers/1.0
+    NB --> N: GetIndexersResponse{Indexers:[IA,IC]}
+end par
+
+note over N: Fusion + duplication → candidates = [IA, IC]\\n(IA already in pool → IC new candidate)
+
+par Consensus Phase 1 (timeout 4s)
+    N -> NA: /opencloud/native/consensus/1.0\\nConsensusRequest{Candidates:[IA,IC]}
+    NA --> N: ConsensusResponse{Trusted:[IA,IC]}
+else
+    N -> NB: /opencloud/native/consensus/1.0
+    NB --> N: ConsensusResponse{Trusted:[IA,IC]}
+end par
+
+note over N: IC → 2/2 votes → admit\\nadmittedAt = time.Now()
+
+par Phase 2 — liveness vote (if stable voters )
+    N -> IA: /opencloud/indexer/consensus/1.0\\nIndexerConsensusRequest{Candidates:[IC]}
+    IA -> IA: StreamRecords[ProtocolHB][IC]\\nLastSeen ≤ 120s && LastScore ≥ 30
+    IA --> N: IndexerConsensusResponse{Alive:[IC]}
+end par
+
+note over N: IC confirmed alive → add to pool
+
+N -> N: replaceStaticIndexers(pool={IA,IC})
+N -> IC: SendHeartbeat /opencloud/heartbeat/1.0 (goroutine long-live)
+
+note over N: Pool restaured to 2 indexers.
+
+@enduml

docs/diagrams/20_failure_indexers_native_falback.puml

@@ -0,0 +1,51 @@
+@startuml failure_indexers_native_falback
+title indexers failures → native IsSelfFallback 
+
+participant "Node" as N
+participant "Indexer A (crashed)" as IA
+participant "Indexer B (crashed)" as IB
+participant "Native A" as NA
+participant "Native B" as NB
+
+note over N: Active Pool : Indexers = [IA, IB]
+
+== Successive Failures on IA & IB ==
+IA ->x N: heartbeat failure (sendHeartbeat err)
+IB ->x N: heartbeat failure (sendHeartbeat err)
+
+note over N: doTick() in SendHeartbeat triggers failures\\n→ delete(StaticIndexers[IA]), delete(StaticIndexers[IB])\\n→ delete(StaticIndexerMeta[IA/IB])\\n unique heartbeat goroutine continue.
+
+N -> N: go replenishIndexersFromNative(need=2)
+
+== Replenish attempt — natives switches to self-fallback mode  ==
+par Fetch from natives (timeout 6s)
+    N -> NA: GET /opencloud/native/indexers/1.0
+    NA -> NA: reachableLiveIndexers() → 0 alive indexer\\nFallback : included as himself(IsSelfFallback=true)
+    NA --> N: GetIndexersResponse{Indexers:[NA_addr], IsSelfFallback:true}
+else
+    N -> NB: GET /opencloud/native/indexers/1.0
+    NB --> N: GetIndexersResponse{Indexers:[NB_addr], IsSelfFallback:true}
+end par
+
+note over N: isFallback=true → resolvePool avoids consensus\\nadmittedAt = time.Time{} (zero)\\nStaticIndexers = {NA_addr} (native as fallback)
+
+N -> NA: SendHeartbeat /opencloud/heartbeat/1.0\\n(native as temporary fallback indexers)
+
+note over NA: responsiblePeers[N] registered.\\nrunOffloadLoop look after real indexers.
+
+== Reprise IA → runOffloadLoop native side ==
+IA -> NA: /opencloud/native/subscribe/1.0\\nIndexerRegistration{FillRate: 0}
+note over NA: liveIndexers[IA] updated.\\nrunOffloadLoop triggers a real available indexer\\migrate from N to IA.
+
+== Replenish on next heartbeat tick ==
+N -> NA: GET /opencloud/native/indexers/1.0
+NA --> N: GetIndexersResponse{Indexers:[IA], IsSelfFallback:false}
+
+note over N: isFallback=false → Classic Phase 1 + Phase 2
+
+N -> N: replaceStaticIndexers(pool={IA}, admittedAt)
+N -> IA: SendHeartbeat /opencloud/heartbeat/1.0
+
+note over N: Pool restaured. Native self extracted as indexer.
+
+@enduml

docs/diagrams/21_failure_native_one_down.puml

@@ -0,0 +1,46 @@
+@startuml failure_native_one_down
+title Native failure, with one still alive
+
+participant "Indexer A" as IA
+participant "Indexer B" as IB
+participant "Native A (crashed)" as NA
+participant "Native B (alive)" as NB
+participant "Node" as N
+
+note over IA, NB: Native State : IA, IB heartbeats to NA & NB
+
+== Native A Failure ==
+NA ->x IA: stream reset
+NA ->x IB: stream reset
+NA ->x N: stream reset (heartbeat Node → NA)
+
+== Indexers side : replenishNativesFromPeers ==
+note over IA: SendHeartbeat(NA) détecte reset\\nAfterDelete(NA)\\nStaticNatives = [NB] (still 1)
+
+IA -> IA: replenishNativesFromPeers()\\nphase 1 : fetchNativeFromNatives
+
+IA -> NB: GET /opencloud/native/peers/1.0
+NB --> IA: GetPeersResponse{Peers:[NC]} /' new native if one known '/
+
+alt NC disponible
+    IA -> NC: SendHeartbeat /opencloud/heartbeat/1.0\\nSubscribe /opencloud/native/subscribe/1.0
+    note over IA: StaticNatives = [NB, NC]\\nNative Pool restored.
+else Aucun peer natif
+    IA -> IA: fetchNativeFromIndexers()\\nAsk to any indexers their natives
+    IB --> IA: GetNativesResponse{Natives:[]} /' IB also only got NB '/
+    note over IA: Impossible to find a 2e native.\\nStaticNatives = [NB] (degraded but alive).
+end
+
+== Node side : alive indexers pool ==
+note over N: Node heartbeats to IA & IB.\\nNA Failure does not affect indexers pool.\\nFuture Consensus did not use NB (1/1 vote = quorum OK).
+
+N -> NB: /opencloud/native/consensus/1.0\\nConsensusRequest{Candidates:[IA,IB]}
+NB --> N: ConsensusResponse{Trusted:[IA,IB]}
+note over N: Consensus 1/1 alive natif → admit.\\nAuto downgrade of the consensus floor (alive majority).
+
+== NB side : heartbeat to NA fails ==
+note over NB: EnsureNativePeers / SendHeartbeat to NA\\nfail (sendHeartbeat err)\\n→ delete(StaticNatives[NA])\\nreplenishNativesFromPeers(NA) triggers
+
+note over NB: Mesh natif downgraded to NB alone.\\Downgraded but functionnal.
+
+@enduml

docs/diagrams/22_failure_both_natives.puml

@@ -0,0 +1,60 @@
+@startuml 22_failure_both_natives
+title F4 — Panne des 2 natifs → fallback pool pré-validé
+
+participant "Node" as N
+participant "Indexer A\\n(vivant)" as IA
+participant "Indexer B\\n(vivant)" as IB
+participant "Native A\\n(crashé)" as NA
+participant "Native B\\n(crashé)" as NB
+
+note over N: Pool actif : StaticIndexers = [IA, IB]\\nStaticNatives = [NA, NB]\\nAdmittedAt[IA] et AdmittedAt[IB] posés (stables)
+
+== Panne simultanée NA et NB ==
+NA ->x N: stream reset
+NB ->x N: stream reset
+
+N -> N: AfterDelete(NA) + AfterDelete(NB)\\nStaticNatives = {} (vide)
+
+== replenishNativesFromPeers (sans résultat) ==
+N -> N: fetchNativeFromNatives() → aucun natif vivant
+N -> IA: GET /opencloud/indexer/natives/1.0
+IA --> N: GetNativesResponse{Natives:[NA,NB]}
+note over N: NA et NB connus mais non joignables.\\nAucun nouveau natif trouvé.
+
+== Fallback : pool d'indexeurs conservé ==
+note over N: isFallback = true\\nStaticIndexers conservé tel quel [IA, IB]\\n(dernier pool validé avec AdmittedAt != zero)\\nRisque D19 atténué : quorum natif = 0 → fallback accepté
+
+note over N: Heartbeats IA et IB continuent normalement.\\nPool d'indexeurs opérationnel sans natifs.
+
+N -> IA: SendHeartbeat /opencloud/heartbeat/1.0 (continue)
+N -> IB: SendHeartbeat /opencloud/heartbeat/1.0 (continue)
+
+== retryLostNative (30s ticker) ==
+loop toutes les 30s
+    N -> N: retryLostNative()\\ntente reconnexion NA et NB
+    N -> NA: dial (échec)
+    N -> NB: dial (échec)
+    note over N: Retry sans résultat.\\nPool indexeurs maintenu en fallback.
+end
+
+== Reprise natifs ==
+NA -> NA: redémarrage
+NB -> NB: redémarrage
+
+N -> NA: dial (succès)
+N -> NA: SendHeartbeat /opencloud/heartbeat/1.0
+N -> NB: SendHeartbeat /opencloud/heartbeat/1.0
+note over N: StaticNatives = [NA, NB] restauré\\nisFallback = false
+
+== Re-consensus pool indexeurs (optionnel) ==
+par Consensus Phase 1
+    N -> NA: /opencloud/native/consensus/1.0\\nConsensusRequest{Candidates:[IA,IB]}
+    NA --> N: ConsensusResponse{Trusted:[IA,IB]}
+else
+    N -> NB: /opencloud/native/consensus/1.0
+    NB --> N: ConsensusResponse{Trusted:[IA,IB]}
+end par
+
+note over N: Pool [IA,IB] reconfirmé.\\nisFallback = false. AdmittedAt[IA,IB] rafraîchi.
+
+@enduml

docs/diagrams/23_failure_native_plus_indexer.puml

@@ -0,0 +1,63 @@
+@startuml 23_failure_native_plus_indexer
+title F5 — Panne combinée : 1 natif + 1 indexeur
+
+participant "Node" as N
+participant "Indexer A\\n(vivant)" as IA
+participant "Indexer B\\n(crashé)" as IB
+participant "Native A\\n(vivant)" as NA
+participant "Native B\\n(crashé)" as NB
+
+note over N: Pool nominal : StaticIndexers=[IA,IB], StaticNatives=[NA,NB]
+
+== Pannes simultanées NB + IB ==
+NB ->x N: stream reset
+IB ->x N: stream reset
+
+N -> N: AfterDelete(NB) — StaticNatives = [NA]
+N -> N: AfterDelete(IB) — StaticIndexers = [IA]
+
+== Replenish natif (1 vivant) ==
+N -> N: replenishNativesFromPeers()
+N -> NA: GET /opencloud/native/peers/1.0
+NA --> N: GetPeersResponse{Peers:[]} /' NB seul pair, disparu '/
+note over N: Aucun natif alternatif.\\nStaticNatives = [NA] — dégradé.
+
+== Replenish indexeur depuis NA ==
+par Fetch pool (timeout 6s)
+    N -> NA: GET /opencloud/native/indexers/1.0
+    NA -> NA: reachableLiveIndexers()\\n(IB absent — heartbeat expiré)
+    NA --> N: GetIndexersResponse{Indexers:[IA,IC], FillRates:{IA:0.5,IC:0.3}}
+end par
+
+note over N: candidates = [IA, IC]
+
+par Consensus Phase 1 — 1 seul natif vivant (timeout 3s)
+    N -> NA: /opencloud/native/consensus/1.0\\nConsensusRequest{Candidates:[IA,IC]}
+    NA --> N: ConsensusResponse{Trusted:[IA,IC]}
+end par
+
+note over N: IC → 1/1 vote → admis (quorum sur vivants)\\nadmittedAt = time.Now()
+
+par Phase 2 liveness vote
+    N -> IA: /opencloud/indexer/consensus/1.0\\nIndexerConsensusRequest{Candidates:[IC]}
+    IA -> IA: StreamRecords[ProtocolHB][IC]\\nLastSeen ≤ 120s && LastScore ≥ 30
+    IA --> N: IndexerConsensusResponse{Alive:[IC]}
+end par
+
+N -> N: replaceStaticIndexers(pool={IA,IC})
+N -> IC: SendHeartbeat /opencloud/heartbeat/1.0
+
+note over N: Pool restauré à [IA,IC].\\nMode dégradé : 1 natif seulement.\\nretryLostNative(NB) actif (30s ticker).
+
+== retryLostNative pour NB ==
+loop toutes les 30s
+    N -> NB: dial (échec)
+end
+
+NB -> NB: redémarrage
+NB -> NA: heartbeat (mesh natif reconstruit)
+N -> NB: dial (succès)
+N -> NB: SendHeartbeat /opencloud/heartbeat/1.0
+note over N: StaticNatives = [NA,NB] restauré.\\nMode nominal retrouvé.
+
+@enduml

docs/diagrams/24_failure_retry_lost_native.puml

@@ -0,0 +1,45 @@
+@startuml 24_failure_retry_lost_native
+title F6 — retryLostNative : reconnexion natif après panne réseau
+
+participant "Node / Indexer" as Caller
+participant "Native A\\n(vivant)" as NA
+participant "Native B\\n(réseau instable)" as NB
+
+note over Caller: StaticNatives = [NA, NB]\\nHeartbeats actifs vers NA et NB
+
+== Panne réseau transitoire vers NB ==
+NB ->x Caller: stream reset (timeout réseau)
+
+Caller -> Caller: AfterDelete(NB)\\nStaticNatives = [NA]\\nlostNatives.Store(NB.addr)
+
+== replenishNativesFromPeers — phase 1 ==
+Caller -> NA: GET /opencloud/native/peers/1.0
+NA --> Caller: GetPeersResponse{Peers:[NB]}
+
+note over Caller: NB connu de NA, tentative de reconnexion directe
+
+Caller -> NB: dial (échec — réseau toujours coupé)
+note over Caller: Connexion impossible.\\nPassage en retryLostNative()
+
+== retryLostNative : ticker 30s ==
+loop toutes les 30s tant que NB absent
+    Caller -> Caller: retryLostNative()\\nParcourt lostNatives
+    Caller -> NB: StartNativeRegistration (dial + heartbeat + subscribe)
+    NB --> Caller: dial échoue
+    note over Caller: Retry loggé. Prochain essai dans 30s.
+end
+
+== Réseau rétabli ==
+note over NB: Réseau rétabli\\nNB de nouveau joignable
+
+Caller -> NB: StartNativeRegistration\\ndial (succès)
+Caller -> NB: SendHeartbeat /opencloud/heartbeat/1.0 (goroutine longue durée)
+Caller -> NB: /opencloud/native/subscribe/1.0\\nIndexerRegistration{FillRate: fillRateFn()}
+
+NB --> Caller: subscribe ack
+
+Caller -> Caller: lostNatives.Delete(NB.addr)\\nStaticNatives = [NA, NB] restauré
+
+note over Caller: Mode nominal retrouvé.\\nnativeHeartbeatOnce non utilisé (goroutine déjà active pour NA).\\nNouvelle goroutine SendHeartbeat pour NB uniquement.
+
+@enduml

docs/diagrams/25_failure_node_gc.puml

@@ -0,0 +1,35 @@
+@startuml 25_failure_node_gc
+title F7 — Crash nœud → GC indexeur + AfterDelete
+
+participant "Node\n(crashé)" as N
+participant "Indexer A" as IA
+participant "Indexer B" as IB
+
+note over N, IB: État nominal : N heartbeatait vers IA et IB
+
+== Crash Node ==
+N ->x IA: stream reset (heartbeat coupé)
+N ->x IB: stream reset (heartbeat coupé)
+
+== GC côté Indexer A ==
+note over IA: HandleHeartbeat : stream reset détecté\nStreamRecords[ProtocolHeartbeat][N].Expiry figé
+
+loop ticker GC (30s) — StartGC(30*time.Second)
+    IA -> IA: gc()\nnow.After(Expiry) où Expiry = lastHBTime + 2min\n→ si 2min sans heartbeat → éviction
+    IA -> IA: delete(StreamRecords[ProtocolHeartbeat][N])\nAfterDelete(N, name, did) appelé hors lock
+    note over IA: N retiré du registre vivant.\nFillRate recalculé : (n-1) / MaxNodesConn()
+end
+
+== Impact fill rate ==
+note over IA: FillRate diminue.\nProchain BuildHeartbeatResponse\ninclura FillRate mis à jour.\nSi fillRate revient < 80% :\n→ offload.inBatch et alreadyTried réinitialisés.
+
+== GC côté Indexer B ==
+note over IB: Même GC effectué.\nN retiré de StreamRecords[ProtocolHeartbeat].
+
+== Reconnexion éventuelle du nœud ==
+N -> N: redémarrage
+N -> IA: SendHeartbeat /opencloud/heartbeat/1.0\nHeartbeat{name, PeerID_N, IndexersBinded, need, record}
+IA -> IA: HandleHeartbeat → UptimeTracker(FirstSeen=now)\nStreamRecords[ProtocolHeartbeat][N] recréé\nRepublish PeerRecord N dans DHT
+note over IA: N de retour avec FirstSeen frais.\ndynamicMinScore élevé tant que age < 24h.\n(phase de grâce : 2 ticks avant scoring)
+
+@enduml

docs/diagrams/README.md

@@ -0,0 +1,88 @@
+# OC-Discovery — Diagrammes d'architecture et de séquence
+
+Tous les fichiers sont au format [PlantUML](https://plantuml.com/).
+Rendu possible via VS Code (extension PlantUML), IntelliJ, ou [plantuml.com/plantuml](https://www.plantuml.com/plantuml/uml/).
+
+> **Note :** Les diagrammes 06, 07, 12, 14–24 et plusieurs protocoles ci-dessous
+> concernaient l'architecture à 3 niveaux (node → indexer → native indexer),
+> supprimée dans la branche `feature/no_native_consortium`. Ces fichiers sont
+> conservés à titre historique. Les diagrammes actifs sont indiqués ci-dessous.
+
+## Diagrammes actifs (architecture 2 niveaux)
+
+### Séquences principales
+
+| Fichier | Description |
+|---------|-------------|
+| `01_node_init.puml` | Initialisation d'un Node : libp2p host + PSK + ConnectionGater + ConnectToIndexers + SendHeartbeat + DHT proactive |
+| `02_node_claim.puml` | Enregistrement du nœud : `claimInfo` + `publishPeerRecord` → indexeurs → DHT |
+| `03_indexer_heartbeat.puml` | Protocole heartbeat bidirectionnel : challenges PeerID + DHT + witness, scoring 7 dimensions, suggestions, SuggestMigrate |
+| `04_indexer_publish.puml` | Publication d'un `PeerRecord` vers l'indexeur → DHT (PutValue /node, /name, /pid) |
+| `05_indexer_get.puml` | Résolution d'un pair : `GetPeerRecord` → indexeur → DHT si absent local |
+| `08_nats_create_resource.puml` | Handler NATS `CREATE_RESOURCE` : propagation partenaires on-demand |
+| `09_nats_propagation.puml` | Handler NATS `PROPALGATION_EVENT` : delete, considers, planner, search |
+| `10_pubsub_search.puml` | Recherche gossip globale (GossipSub /opencloud/search/1.0) |
+| `11_stream_search.puml` | Recherche directe par stream (type `"known"` ou `"partner"`) |
+| `13_planner_flow.puml` | Session planner (ouverture, échange, fermeture) |
+
+### Résilience et pool management
+
+| Fichier | Description |
+|---------|-------------|
+| `hb_failure_evict.puml` | HeartbeatFailure → evictPeer → TriggerConsensus ou DHT replenish |
+| `hb_last_indexer.puml` | Protection last-indexer → reconnectToSeeds → retryUntilSeedResponds |
+| `dht_discovery.puml` | Découverte proactive DHT : Provide/FindProviders, SelectByFillRate, dhtCache |
+| `connection_gater.puml` | ConnectionGater : DB blacklist → DHT sequential check (transport-error fallthrough) |
+
+## Diagrammes historiques (architecture 3 niveaux — obsolètes)
+
+Ces fichiers documentent l'ancienne architecture. Ils ne correspondent plus
+au code en production.
+
+| Fichier | Description |
+|---------|-------------|
+| `06_native_registration.puml` | Enregistrement d'un indexeur auprès du Native (supprimé) |
+| `07_native_get_consensus.puml` | `ConnectToNatives` : fetch pool + Phase 1 + Phase 2 (supprimé) |
+| `12_partner_heartbeat.puml` | Heartbeat partner permanent (supprimé — connexions on-demand) |
+| `14_native_offload_gc.puml` | Boucles background Native Indexer (supprimé) |
+| `15_archi_config_nominale.puml` | Topologie nominale avec natifs (obsolète) |
+| `16_archi_config_seed.puml` | Mode seed sans natif (obsolète) |
+| `17_startup_consensus_phase1_phase2.puml` | Démarrage avec consensus natifs (supprimé) |
+| `18_startup_seed_discovers_native.puml` | Upgrade seed → native (supprimé) |
+| `19_failure_indexer_crash.puml` | F1 — replenish depuis natif (supprimé) |
+| `20_failure_both_indexers_selfdelegate.puml` | F2 — IsSelfFallback native (supprimé) |
+| `21_failure_native_one_down.puml` | F3 — panne 1 natif (supprimé) |
+| `22_failure_both_natives.puml` | F4 — panne 2 natifs (supprimé) |
+| `23_failure_native_plus_indexer.puml` | F5 — panne combinée natif + indexeur (supprimé) |
+| `24_failure_retry_lost_native.puml` | F6 — retryLostNative (supprimé) |
+| `25_failure_node_gc.puml` | F7 — GC nœud côté indexeur (toujours valide) |
+
+## Protocoles libp2p actifs
+
+| Protocole | Description |
+|-----------|-------------|
+| `/opencloud/heartbeat/1.0` | Heartbeat bidirectionnel node→indexeur (long-lived) |
+| `/opencloud/probe/1.0` | Sonde de bande passante (echo, mesure latence + débit) |
+| `/opencloud/witness/1.0` | Requête témoin : "quel est ton score de l'indexeur X ?" |
+| `/opencloud/record/publish/1.0` | Publication `PeerRecord` vers indexeur |
+| `/opencloud/record/get/1.0` | Requête `GetPeerRecord` vers indexeur |
+| `/opencloud/resource/search/1.0` | Recherche de ressources entre peers |
+| `/opencloud/resource/create/1.0` | Propagation création ressource → partner |
+| `/opencloud/resource/update/1.0` | Propagation mise à jour ressource → partner |
+| `/opencloud/resource/delete/1.0` | Propagation suppression ressource → partner |
+| `/opencloud/resource/planner/1.0` | Session planner (booking) |
+| `/opencloud/resource/verify/1.0` | Vérification signature ressource |
+| `/opencloud/resource/considers/1.0` | Transmission d'un considers d'exécution |
+
+## Protocoles supprimés (architecture native)
+
+| Protocole | Raison |
+|-----------|--------|
+| `/opencloud/native/subscribe/1.0` | Tier native supprimé |
+| `/opencloud/native/unsubscribe/1.0` | Tier native supprimé |
+| `/opencloud/native/indexers/1.0` | Remplacé par DHT FindProviders |
+| `/opencloud/native/consensus/1.0` | Remplacé par TriggerConsensus léger |
+| `/opencloud/native/peers/1.0` | Tier native supprimé |
+| `/opencloud/indexer/natives/1.0` | Tier native supprimé |
+| `/opencloud/indexer/consensus/1.0` | Remplacé par TriggerConsensus |
+| `/opencloud/resource/heartbeat/partner/1.0` | Heartbeat partner supprimé — on-demand |

docs/diagrams/connection_gater.puml

@@ -0,0 +1,69 @@
+@startuml connection_gater
+title ConnectionGater — Vérification à l'admission (InterceptSecured)
+
+participant "Remote Peer\n(inbound)" as Remote
+participant "libp2p\nhost A" as Host
+participant "OCConnectionGater" as Gater
+participant "DB (oc-lib)" as DB
+participant "Indexer X\n(joignable)" as IX
+participant "Indexer Y\n(injoignable)" as IY
+
+Remote -> Host: inbound connection (post-PSK, post-TLS)
+Host -> Gater: InterceptSecured(dir=Inbound, id=RemotePeerID, conn)
+
+alt dir == Outbound
+    Gater --> Host: true (outbound toujours autorisé)
+end
+
+== Étape 1 : Vérification base de données ==
+
+Gater -> DB: NewRequestAdmin(PEER).Search(\n  Filter: peer_id = RemotePeerID\n)
+DB --> Gater: []peer.Peer
+
+alt trouvé AND relation == BLACKLIST
+    Gater --> Host: false (refusé — blacklisté)
+    Host ->x Remote: connexion fermée
+end
+
+alt trouvé AND relation != BLACKLIST
+    Gater --> Host: true (connu et non blacklisté)
+end
+
+== Étape 2 : Vérification DHT (peer inconnu en DB) ==
+
+note over Gater: Peer inconnu → vérifier qu'il existe\ndans le réseau DHT
+
+Gater -> Gater: getReq = GetValue{PeerID: RemotePeerID}
+
+loop Pour chaque indexeur (ordre aléatoire — Shuffle)
+
+    alt Indexer IY injoignable (transport error)
+        Gater -> IY: h.Connect(ctxTTL, IY_AddrInfo)
+        IY -->x Gater: connexion échouée
+        note over Gater: reachable=false\n→ essaie le suivant
+    end
+
+    alt Indexer IX joignable
+        Gater -> IX: h.Connect(ctxTTL, IX_AddrInfo)
+        IX --> Gater: OK
+        Gater -> IX: TempStream /opencloud/record/get/1.0
+        Gater -> IX: stream.Encode(GetValue{PeerID: RemotePeerID})
+        IX -> IX: Recherche locale + DHT si absent
+        IX --> Gater: GetResponse{Found: true/false, Records}
+        note over Gater: reachable=true → réponse autoritaire\n(DHT distribué : un seul indexeur suffit)
+
+        alt Found == true
+            Gater --> Host: true (pair connu du réseau)
+        else Found == false
+            Gater --> Host: false (refusé — inconnu du réseau)
+            Host ->x Remote: connexion fermée
+        end
+    end
+end
+
+alt Aucun indexeur joignable
+    note over Gater: Réseau naissant ou tous isolés.\nAutorisation par défaut.
+    Gater --> Host: true
+end
+
+@enduml

docs/diagrams/dht_discovery.puml

@@ -0,0 +1,56 @@
+@startuml dht_discovery
+title Découverte DHT : Provide/FindProviders + SelectByFillRate + dhtCache indexeur
+
+participant "Indexer A\n(nouveau)" as IA
+participant "DHT Network" as DHT
+participant "Node B\n(bootstrap)" as NodeB
+participant "Indexer A\n(existant)" as IAexist
+
+== Inscription indexeur dans la DHT ==
+
+note over IA: Démarrage IndexerService\nstartDHTProvide(fillRateFn)
+
+IA -> IA: Attend adresse routable (max 60s)\nnon-loopback disponible
+
+IA -> DHT: DHT.Bootstrap(ctx)\n→ routing table warmup
+
+loop ticker RecommendedHeartbeatInterval (~20s)
+    IA -> DHT: DHT.Provide(IndexerCID, true)\n← IndexerCID = CID(sha256("/opencloud/indexers"))
+    note over DHT: L'indexeur est annoncé comme provider.\nTTL géré par libp2p-kad-dht.\nAuto-expire si Provide() s'arrête.
+end
+
+== Cache DHT passif de l'indexeur ==
+
+note over IA: startDHTCacheRefresh()\ngoroutine arrière-plan
+
+IA -> IA: Initial delay 30s (routing table warmup)
+
+loop ticker 2min
+    IA -> DHT: DiscoverIndexersFromDHT(h, dht, 30)\n← FindProviders(IndexerCID, max=30)
+    DHT --> IA: []AddrInfo (jusqu'à 30 candidats)
+    IA -> IA: Filtre self\nSelectByFillRate(filtered, nil, 10)\n→ diversité /24, prior f=0.5 (fill rates inconnus)
+    IA -> IA: dhtCache = selected (max 10)\n→ utilisé pour Suggestions dans BuildHeartbeatResponse
+end
+
+== Découverte côté Node au bootstrap ==
+
+NodeB -> NodeB: ConnectToIndexers → seeds ajoutés\nSendHeartbeat démarré
+
+NodeB -> NodeB: goroutine proactive (après 5s warmup)
+
+alt discoveryDHT == nil (node pur, pas d'IndexerService)
+    NodeB -> DHT: initNodeDHT(h, seeds)\n← DHT client mode, bootstrappé sur seeds
+end
+
+NodeB -> DHT: DiscoverIndexersFromDHT(h, discoveryDHT, need+extra)
+DHT --> NodeB: []AddrInfo candidats
+
+NodeB -> NodeB: Filtre self\nSelectByFillRate(candidates, fillRates, need)\n→ pondération w(F) = F×(1-F)\n  F=0.2 → w=0.16 (très probable)\n  F=0.5 → w=0.25 (max)\n  F=0.8 → w=0.16 (peu probable)\n→ filtre diversité /24
+
+loop Pour chaque candidat retenu
+    NodeB -> NodeB: Indexers.SetAddr(key, &addrInfo)\nNudgeIt() → heartbeat immédiat
+end
+
+note over NodeB: Pool enrichi au-delà des seeds.\nScoring commence au premier heartbeat.\nSeeds restent IsSeed=true (stickiness).
+
+@enduml

docs/diagrams/hb_failure_evict.puml

@@ -0,0 +1,41 @@
+@startuml hb_failure_evict
+title HeartbeatFailure → evictPeer → TriggerConsensus ou DHT replenish
+
+participant "Node A" as NodeA
+participant "Indexer X\n(défaillant)" as IX
+participant "Indexer Y\n(voter)" as IY
+participant "Indexer Z\n(voter)" as IZ
+participant "DHT" as DHT
+participant "Indexer NEW\n(candidat)" as INEW
+
+note over NodeA: SendHeartbeat tick — Indexer X dans le pool
+
+NodeA -> IX: stream.Encode(Heartbeat{...})
+IX -->x NodeA: timeout / transport error
+
+NodeA -> NodeA: HeartbeatFailure(h, proto, dir, addr_X, info_X, isIndexerHB=true, maxPool)
+
+NodeA -> NodeA: evictPeer(dir, addr_X, id_X, proto)\n→ Streams.Delete(proto, &id_X)\n→ DeleteAddr(addr_X)\n→ DeleteScore(addr_X)\n→ voters = remaining AddrInfos
+
+NodeA -> NodeA: poolSize = len(dir.GetAddrs())
+
+alt poolSize == 0
+    NodeA -> NodeA: reconnectToSeeds()\n→ réinjecte IndexerAddresses (IsSeed=true)
+    alt seeds ajoutés
+        NodeA -> NodeA: need = maxPool\nNudgeIt() → tick immédiat
+    else aucun seed configuré ou seeds injoignables
+        NodeA -> NodeA: go retryUntilSeedResponds()\n(backoff 10s→5min, panic si IndexerAddresses vide)
+    end
+else poolSize > 0 AND len(voters) > 0
+    NodeA -> NodeA: go TriggerConsensus(h, voters, need)
+    NodeA -> IY: stream GET → GetValue{Key: candidate_DID}
+    IY --> NodeA: GetResponse{Found, Records}
+    NodeA -> IZ: stream GET → GetValue{Key: candidate_DID}
+    IZ --> NodeA: GetResponse{Found, Records}
+    note over NodeA: Quorum check:\nfound=true AND lastSeen ≤ 2×interval\nAND lastScore ≥ 30\n→ majorité → admission INEW
+    NodeA -> NodeA: Indexers.SetAddr(addr_NEW, &INEW_AddrInfo)\nIndexers.SetScore(addr_NEW, Score{IsSeed:false})\nNudgeIt()
+else poolSize > 0 AND len(voters) == 0
+    NodeA -> DHT: go replenishIndexersFromDHT(h, need)\nDiscoverIndexersFromDHT → SelectByFillRate\n→ add to Indexers Directory
+end
+
+@enduml

docs/diagrams/hb_last_indexer.puml

@@ -0,0 +1,46 @@
+@startuml hb_last_indexer
+title Protection last-indexer → reconnectToSeeds → retryUntilSeedResponds
+
+participant "Node A" as NodeA
+participant "Indexer LAST\n(seul restant)" as IL
+participant "Seed Indexer\n(config)" as SEED
+participant "DHT" as DHT
+
+note over NodeA: Pool = 1 indexeur (LAST)\nIsSeed=false, score bas depuis longtemps
+
+== Tentative d'éviction par score ==
+NodeA -> NodeA: score < minScore\nAND TotalOnline ≥ 2×interval\nAND !IsSeed\nAND len(pool) > 1 ← FAUX : pool == 1
+
+note over NodeA: Garde active : len(pool) == 1\n→ éviction par score BLOQUÉE\nLAST reste dans le pool
+
+== Panne réseau (heartbeat fail) ==
+NodeA -> IL: stream.Encode(Heartbeat{...})
+IL -->x NodeA: timeout
+
+NodeA -> NodeA: HeartbeatFailure → evictPeer(LAST)\npoolSize = 0
+
+NodeA -> NodeA: reconnectToSeeds()\n→ parse IndexerAddresses (conf)\n→ SetAddr + SetScore(IsSeed=true) pour chaque seed
+
+alt seeds ajoutés (IndexerAddresses non vide)
+    NodeA -> NodeA: NudgeIt() → tick immédiat
+    NodeA -> SEED: Heartbeat{...} (via SendHeartbeat nudge)
+    SEED --> NodeA: HeartbeatResponse{fillRate, ...}
+    note over NodeA: Pool rétabli via seeds.\nDHT proactive discovery reprend.
+
+else IndexerAddresses vide
+    NodeA -> NodeA: go retryUntilSeedResponds()
+    note over NodeA: panic immédiat :\n"pool is empty and no seed indexers configured"\n→ arrêt du processus
+end
+
+== retryUntilSeedResponds (si seeds non répondants) ==
+loop backoff exponentiel (10s → 20s → ... → 5min)
+    NodeA -> NodeA: time.Sleep(backoff)
+    NodeA -> NodeA: len(Indexers.GetAddrs()) > 0?\n→ oui : retour (quelqu'un a refillé)
+    NodeA -> NodeA: reconnectToSeeds()
+    alt pool > 0 après reconnect
+        NodeA -> NodeA: NudgeIt()\nDHT.Bootstrap(ctx, 15s)
+        note over NodeA: Sortie de la boucle.\nHeartbeat normal reprend.
+    end
+end
+
+@enduml

go.mod

@@ -1,64 +1,177 @@
 module oc-discovery
 
-go 1.22.0
+go 1.25.0
 
 require (
-	cloud.o-forge.io/core/oc-lib v0.0.0-20240902132116-fba1608edb70
-	github.com/beego/beego v1.12.13
-	github.com/beego/beego/v2 v2.3.0
-	github.com/go-redis/redis v6.15.9+incompatible
-	github.com/goraz/onion v0.1.3
-	github.com/smartystreets/goconvey v1.7.2
-	github.com/tidwall/gjson v1.17.3
+	cloud.o-forge.io/core/oc-lib v0.0.0-20260311072518-933b7147e908
+	github.com/ipfs/go-cid v0.6.0
+	github.com/libp2p/go-libp2p v0.47.0
+	github.com/libp2p/go-libp2p-record v0.3.1
+	github.com/multiformats/go-multiaddr v0.16.1
+	github.com/multiformats/go-multihash v0.2.3
+)
+
+require (
+	github.com/beego/beego/v2 v2.3.8 // indirect
+	github.com/benbjohnson/clock v1.3.5 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/davidlazar/go-crypto v0.0.0-20200604182044-b73af7476f6c // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.4.0 // indirect
+	github.com/dunglas/httpsfv v1.1.0 // indirect
+	github.com/emicklei/go-restful/v3 v3.12.2 // indirect
+	github.com/filecoin-project/go-clock v0.1.0 // indirect
+	github.com/flynn/noise v1.1.0 // indirect
+	github.com/fxamacker/cbor/v2 v2.9.0 // indirect
+	github.com/go-logr/logr v1.4.3 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/go-openapi/jsonpointer v0.21.0 // indirect
+	github.com/go-openapi/jsonreference v0.20.2 // indirect
+	github.com/go-openapi/swag v0.23.0 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/google/gnostic-models v0.7.0 // indirect
+	github.com/google/gopacket v1.1.19 // indirect
+	github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 // indirect
+	github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
+	github.com/huin/goupnp v1.3.0 // indirect
+	github.com/ipfs/boxo v0.35.2 // indirect
+	github.com/ipfs/go-datastore v0.9.0 // indirect
+	github.com/ipfs/go-log/v2 v2.9.1 // indirect
+	github.com/ipld/go-ipld-prime v0.21.0 // indirect
+	github.com/jackpal/go-nat-pmp v1.0.2 // indirect
+	github.com/jbenet/go-temp-err-catcher v0.1.0 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/cpuid/v2 v2.3.0 // indirect
+	github.com/koron/go-ssdp v0.0.6 // indirect
+	github.com/libp2p/go-buffer-pool v0.1.0 // indirect
+	github.com/libp2p/go-cidranger v1.1.0 // indirect
+	github.com/libp2p/go-flow-metrics v0.3.0 // indirect
+	github.com/libp2p/go-libp2p-asn-util v0.4.1 // indirect
+	github.com/libp2p/go-libp2p-kbucket v0.8.0 // indirect
+	github.com/libp2p/go-libp2p-routing-helpers v0.7.5 // indirect
+	github.com/libp2p/go-msgio v0.3.0 // indirect
+	github.com/libp2p/go-netroute v0.4.0 // indirect
+	github.com/libp2p/go-reuseport v0.4.0 // indirect
+	github.com/libp2p/go-yamux/v5 v5.0.1 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
+	github.com/marten-seemann/tcp v0.0.0-20210406111302-dfbc87cc63fd // indirect
+	github.com/miekg/dns v1.1.68 // indirect
+	github.com/mikioh/tcpinfo v0.0.0-20190314235526-30a79bb1804b // indirect
+	github.com/mikioh/tcpopt v0.0.0-20190314235656-172688c1accc // indirect
+	github.com/minio/sha256-simd v1.0.1 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee // indirect
+	github.com/mr-tron/base58 v1.2.0 // indirect
+	github.com/multiformats/go-base32 v0.1.0 // indirect
+	github.com/multiformats/go-base36 v0.2.0 // indirect
+	github.com/multiformats/go-multiaddr-dns v0.4.1 // indirect
+	github.com/multiformats/go-multiaddr-fmt v0.1.0 // indirect
+	github.com/multiformats/go-multibase v0.2.0 // indirect
+	github.com/multiformats/go-multicodec v0.10.0 // indirect
+	github.com/multiformats/go-multistream v0.6.1 // indirect
+	github.com/multiformats/go-varint v0.1.0 // indirect
+	github.com/pbnjay/memory v0.0.0-20210728143218-7b4eea64cf58 // indirect
+	github.com/pion/datachannel v1.5.10 // indirect
+	github.com/pion/dtls/v2 v2.2.12 // indirect
+	github.com/pion/dtls/v3 v3.0.6 // indirect
+	github.com/pion/ice/v4 v4.0.10 // indirect
+	github.com/pion/interceptor v0.1.40 // indirect
+	github.com/pion/logging v0.2.3 // indirect
+	github.com/pion/mdns/v2 v2.0.7 // indirect
+	github.com/pion/randutil v0.1.0 // indirect
+	github.com/pion/rtcp v1.2.15 // indirect
+	github.com/pion/rtp v1.8.19 // indirect
+	github.com/pion/sctp v1.8.39 // indirect
+	github.com/pion/sdp/v3 v3.0.13 // indirect
+	github.com/pion/srtp/v3 v3.0.6 // indirect
+	github.com/pion/stun v0.6.1 // indirect
+	github.com/pion/stun/v3 v3.0.0 // indirect
+	github.com/pion/transport/v2 v2.2.10 // indirect
+	github.com/pion/transport/v3 v3.0.7 // indirect
+	github.com/pion/turn/v4 v4.0.2 // indirect
+	github.com/pion/webrtc/v4 v4.1.2 // indirect
+	github.com/polydawn/refmt v0.89.0 // indirect
+	github.com/quic-go/qpack v0.6.0 // indirect
+	github.com/quic-go/quic-go v0.59.0 // indirect
+	github.com/quic-go/webtransport-go v0.10.0 // indirect
+	github.com/spaolacci/murmur3 v1.1.0 // indirect
+	github.com/whyrusleeping/go-keyspace v0.0.0-20160322163242-5b898ac5add1 // indirect
+	github.com/wlynxg/anet v0.0.5 // indirect
+	github.com/x448/float16 v0.8.4 // indirect
+	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
+	go.opentelemetry.io/otel v1.39.0 // indirect
+	go.opentelemetry.io/otel/metric v1.39.0 // indirect
+	go.opentelemetry.io/otel/trace v1.39.0 // indirect
+	go.uber.org/dig v1.19.0 // indirect
+	go.uber.org/fx v1.24.0 // indirect
+	go.uber.org/mock v0.5.2 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	go.uber.org/zap v1.27.1 // indirect
+	go.yaml.in/yaml/v2 v2.4.3 // indirect
+	go.yaml.in/yaml/v3 v3.0.4 // indirect
+	golang.org/x/exp v0.0.0-20260112195511-716be5621a96 // indirect
+	golang.org/x/mod v0.32.0 // indirect
+	golang.org/x/oauth2 v0.32.0 // indirect
+	golang.org/x/telemetry v0.0.0-20260109210033-bd525da824e2 // indirect
+	golang.org/x/term v0.39.0 // indirect
+	golang.org/x/time v0.12.0 // indirect
+	golang.org/x/tools v0.41.0 // indirect
+	gonum.org/v1/gonum v0.17.0 // indirect
+	gopkg.in/evanphx/json-patch.v4 v4.13.0 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+	k8s.io/api v0.35.1 // indirect
+	k8s.io/apimachinery v0.35.1 // indirect
+	k8s.io/client-go v0.35.1 // indirect
+	k8s.io/klog/v2 v2.130.1 // indirect
+	k8s.io/kube-openapi v0.0.0-20250910181357-589584f1c912 // indirect
+	k8s.io/utils v0.0.0-20251002143259-bc988d571ff4 // indirect
+	lukechampine.com/blake3 v1.4.1 // indirect
+	sigs.k8s.io/json v0.0.0-20250730193827-2d320260d730 // indirect
+	sigs.k8s.io/randfill v1.0.0 // indirect
+	sigs.k8s.io/structured-merge-diff/v6 v6.3.0 // indirect
+	sigs.k8s.io/yaml v1.6.0 // indirect
 )
 
 require (
 	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/biter777/countries v1.7.5 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
-	github.com/gabriel-vasile/mimetype v1.4.5 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.10 // indirect
 	github.com/go-playground/locales v0.14.1 // indirect
 	github.com/go-playground/universal-translator v0.18.1 // indirect
-	github.com/go-playground/validator/v10 v10.22.0 // indirect
-	github.com/golang/protobuf v1.5.4 // indirect
-	github.com/golang/snappy v0.0.4 // indirect
-	github.com/google/uuid v1.6.0 // indirect
-	github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 // indirect
+	github.com/go-playground/validator/v10 v10.27.0 // indirect
+	github.com/golang/snappy v1.0.0 // indirect
+	github.com/google/uuid v1.6.0
+	github.com/goraz/onion v0.1.3 // indirect
 	github.com/hashicorp/golang-lru v1.0.2 // indirect
-	github.com/jtolds/gls v4.20.0+incompatible // indirect
-	github.com/klauspost/compress v1.17.9 // indirect
-	github.com/kr/pretty v0.3.1 // indirect
+	github.com/klauspost/compress v1.18.0 // indirect
 	github.com/leodido/go-urn v1.4.0 // indirect
-	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/libp2p/go-libp2p-kad-dht v0.37.1
+	github.com/libp2p/go-libp2p-pubsub v0.15.0
+	github.com/mattn/go-colorable v0.1.14 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
-	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/montanaflynn/stats v0.7.1 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
-	github.com/nats-io/nats.go v1.37.0 // indirect
-	github.com/nats-io/nkeys v0.4.7 // indirect
+	github.com/nats-io/nats.go v1.43.0 // indirect
+	github.com/nats-io/nkeys v0.4.11 // indirect
 	github.com/nats-io/nuid v1.0.1 // indirect
-	github.com/pkg/errors v0.9.1 // indirect
-	github.com/prometheus/client_golang v1.20.2 // indirect
-	github.com/prometheus/client_model v0.6.1 // indirect
-	github.com/prometheus/common v0.57.0 // indirect
-	github.com/prometheus/procfs v0.15.1 // indirect
-	github.com/robfig/cron/v3 v3.0.1 // indirect
-	github.com/rs/zerolog v1.33.0 // indirect
+	github.com/prometheus/client_golang v1.23.2 // indirect
+	github.com/prometheus/client_model v0.6.2 // indirect
+	github.com/prometheus/common v0.66.1 // indirect
+	github.com/prometheus/procfs v0.17.0 // indirect
+	github.com/rs/zerolog v1.34.0 // indirect
 	github.com/shiena/ansicolor v0.0.0-20230509054315-a9deabde6e02 // indirect
-	github.com/smartystreets/assertions v1.2.0 // indirect
-	github.com/tidwall/match v1.1.1 // indirect
-	github.com/tidwall/pretty v1.2.1 // indirect
 	github.com/xdg-go/pbkdf2 v1.0.0 // indirect
 	github.com/xdg-go/scram v1.1.2 // indirect
 	github.com/xdg-go/stringprep v1.0.4 // indirect
 	github.com/youmark/pkcs8 v0.0.0-20240726163527-a2c0da244d78 // indirect
-	go.mongodb.org/mongo-driver v1.16.1 // indirect
-	golang.org/x/crypto v0.26.0 // indirect
-	golang.org/x/net v0.28.0 // indirect
-	golang.org/x/sync v0.8.0 // indirect
-	golang.org/x/sys v0.24.0 // indirect
-	golang.org/x/text v0.17.0 // indirect
-	google.golang.org/protobuf v1.34.2 // indirect
-	gopkg.in/yaml.v2 v2.4.0 // indirect
+	go.mongodb.org/mongo-driver v1.17.4 // indirect
+	golang.org/x/crypto v0.47.0 // indirect
+	golang.org/x/net v0.49.0 // indirect
+	golang.org/x/sync v0.19.0 // indirect
+	golang.org/x/sys v0.40.0 // indirect
+	golang.org/x/text v0.33.0 // indirect
+	google.golang.org/protobuf v1.36.11 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,230 +1,333 @@
-cloud.o-forge.io/core/oc-lib v0.0.0-20240830131445-af18dba5563c h1:4ZoM9ONJiaeLHSi0s8gsCe4lHuRHXkfK+eDSnTCspa0=
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-cloud.o-forge.io/core/oc-lib v0.0.0-20240902132116-fba1608edb70 h1:xHxxRDtMG2/AAc7immArZfsnVF+KfJqoyUeUENmF6DA=
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+cloud.o-forge.io/core/oc-lib v0.0.0-20260304145747-e03a0d3dd0aa h1:1wCpI4dwN1pj6MlpJ7/WifhHVHmCE4RU+9klwqgo/bk=
+cloud.o-forge.io/core/oc-lib v0.0.0-20260304145747-e03a0d3dd0aa/go.mod h1:+ENuvBfZdESSvecoqGY/wSvRlT3vinEolxKgwbOhUpA=
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+k8s.io/client-go v0.35.1/go.mod h1:1p1KxDt3a0ruRfc/pG4qT/3oHmUj1AhSHEcxNSGg+OA=
+k8s.io/klog/v2 v2.130.1 h1:n9Xl7H1Xvksem4KFG4PYbdQCQxqc/tTUyrgXaOhHSzk=
+k8s.io/klog/v2 v2.130.1/go.mod h1:3Jpz1GvMt720eyJH1ckRHK1EDfpxISzJ7I9OYgaDtPE=
+k8s.io/kube-openapi v0.0.0-20250910181357-589584f1c912 h1:Y3gxNAuB0OBLImH611+UDZcmKS3g6CthxToOb37KgwE=
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+lukechampine.com/blake3 v1.4.1/go.mod h1:QFosUxmjB8mnrWFSNwKmvxHpfY72bmD2tQ0kBMM3kwo=
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main.go

@@ -1,44 +1,54 @@
 package main
 
 import (
-	"oc-discovery/models"
-	_ "oc-discovery/routers"
+	"context"
+	"log"
+	"oc-discovery/conf"
+	"oc-discovery/daemons/node"
+	"os"
+	"os/signal"
+	"strings"
+	"syscall"
 
 	oclib "cloud.o-forge.io/core/oc-lib"
-	"cloud.o-forge.io/core/oc-lib/logs"
-	"cloud.o-forge.io/core/oc-lib/tools"
-	beego "github.com/beego/beego/v2/server/web"
 )
 
 const appname = "oc-discovery"
 
 func main() {
 	// Init the oc-lib
-	oclib.Init(appname, "", "")
+	oclib.InitDaemon(appname)
 	// get the right config file
 
-	o := tools.GetConfLoader()
+	o := oclib.GetConfLoader(appname)
 
-	models.GetConfig().Port = o.GetIntDefault("port", 8080)
-	models.GetConfig().LokiUrl = o.GetStringDefault("lokiurl", "")
-	models.GetConfig().RedisUrl = o.GetStringDefault("redisurl", "localhost:6379")
-	models.GetConfig().RedisPassword = o.GetStringDefault("redispassword", "")
-	models.GetConfig().ZincUrl = o.GetStringDefault("zincurl", "http://localhost:4080")
-	models.GetConfig().ZincLogin = o.GetStringDefault("zinclogin", "admin")
-	models.GetConfig().ZincPassword = o.GetStringDefault("zincpassword", "admin")
-	models.GetConfig().IdentityFile = o.GetStringDefault("identityfile", "./identity.json")
-	models.GetConfig().Defaultpeers = o.GetStringDefault("defaultpeers", "./peers.json")
+	conf.GetConfig().Name = o.GetStringDefault("NAME", "opencloud-demo")
+	conf.GetConfig().Hostname = o.GetStringDefault("HOSTNAME", "127.0.0.1")
+	conf.GetConfig().PSKPath = o.GetStringDefault("PSK_PATH", "./psk/psk.key")
+	conf.GetConfig().NodeEndpointPort = o.GetInt64Default("NODE_ENDPOINT_PORT", 4001)
+	conf.GetConfig().IndexerAddresses = o.GetStringDefault("INDEXER_ADDRESSES", "")
 
-	// set oc-lib logger
-	if models.GetConfig().LokiUrl != "" {
-		logs.CreateLogger(appname, models.GetConfig().LokiUrl)
+
+	conf.GetConfig().PeerIDS = o.GetStringDefault("PEER_IDS", "")
+
+	conf.GetConfig().NodeMode = o.GetStringDefault("NODE_MODE", "node")
+
+	conf.GetConfig().MinIndexer = o.GetIntDefault("MIN_INDEXER", 1)
+	conf.GetConfig().MaxIndexer = o.GetIntDefault("MAX_INDEXER", 5)
+
+	ctx, stop := signal.NotifyContext(
+		context.Background(),
+		os.Interrupt,
+		syscall.SIGTERM,
+	)
+	defer stop()
+	isNode := strings.Contains(conf.GetConfig().NodeMode, "node")
+	isIndexer := strings.Contains(conf.GetConfig().NodeMode, "indexer")
+	if n, err := node.InitNode(isNode, isIndexer); err != nil {
+		panic(err)
+	} else {
+		<-ctx.Done() // the only blocking point
+		log.Println("shutting down")
+		n.Close()
 	}
-
-	// Normal beego init
-	beego.BConfig.AppName = appname
-	beego.BConfig.Listen.HTTPPort = models.GetConfig().Port
-	beego.BConfig.WebConfig.DirectoryIndex = true
-	beego.BConfig.WebConfig.StaticDir["/swagger"] = "swagger"
-
-	beego.Run()
 }

models/config.go

@@ -1,25 +0,0 @@
-package models
-
-import "sync"
-
-type Config struct {
-	Port          int
-	LokiUrl       string
-	ZincUrl       string
-	ZincLogin     string
-	ZincPassword  string
-	RedisUrl      string
-	RedisPassword string
-	IdentityFile  string
-	Defaultpeers  string
-}
-
-var instance *Config
-var once sync.Once
-
-func GetConfig() *Config {
-	once.Do(func() {
-		instance = &Config{}
-	})
-	return instance
-}

models/event.go

@@ -0,0 +1,56 @@
+package models
+
+import (
+	"encoding/json"
+	"time"
+
+	"cloud.o-forge.io/core/oc-lib/tools"
+	"github.com/libp2p/go-libp2p/core/crypto"
+)
+
+type Event struct {
+	Type string `json:"type"`
+	From string `json:"from"` // peerID
+
+	User string
+
+	DataType  int64  `json:"datatype"`
+	Timestamp int64  `json:"ts"`
+	Payload   []byte `json:"payload"`
+	Signature []byte `json:"sig"`
+}
+
+func NewEvent(name string, from string, dt *tools.DataType, user string, payload []byte, priv crypto.PrivKey) *Event {
+	evt := &Event{
+		Type:      name,
+		From:      from,
+		User:      user,
+		Timestamp: time.Now().UTC().Unix(),
+		Payload:   payload,
+	}
+	if dt != nil {
+		evt.DataType = int64(dt.EnumIndex())
+	} else {
+		evt.DataType = -1
+	}
+
+	body, _ := json.Marshal(evt)
+	sig, _ := priv.Sign(body)
+	evt.Signature = sig
+	return evt
+}
+
+func (e *Event) RawEvent() *Event {
+	return &Event{
+		Type:      e.Type,
+		From:      e.From,
+		User:      e.User,
+		DataType:  e.DataType,
+		Timestamp: e.Timestamp,
+		Payload:   e.Payload,
+	}
+}
+
+func (e *Event) ToRawByte() ([]byte, error) {
+	return json.Marshal(e.RawEvent())
+}

models/identity.go

@@ -1,44 +0,0 @@
-package models
-
-import (
-	"encoding/json"
-	"os"
-
-	"github.com/beego/beego/logs"
-)
-
-var (
-	Me Identity
-)
-
-func init() {
-	content, err := os.ReadFile("./identity.json")
-	if err != nil {
-		logs.Error("Error when opening file: ", err)
-	}
-	err = json.Unmarshal(content, &Me)
-	if err != nil {
-		logs.Error("Error during Unmarshal(): ", err)
-	}
-}
-
-type Identity struct {
-	Id               string `json:"id,omitempty"`
-	Name             string `json:"name,omitempty"`
-	PrivateKey       string `json:"private_key,omitempty"`
-	PublicAttributes Peer   `json:"public_attributes,omitempty"`
-}
-
-func GetIdentity() (u *Identity) {
-	return &Me
-}
-
-func UpdateIdentity(uu *Identity) error {
-	Me = *uu
-	jsonBytes, err := json.Marshal(uu)
-	if err != nil {
-		return err
-	}
-	os.WriteFile("./identity.json", jsonBytes, 0600)
-	return nil
-}

models/peer.go

@@ -1,88 +0,0 @@
-package models
-
-import (
-	"encoding/json"
-	"io/ioutil"
-	"time"
-
-	"github.com/beego/beego/logs"
-)
-
-var (
-	Peers []Peer
-	Store Storage
-)
-
-type Peer struct {
-	PeerId      string   `json:"peer_id,omitempty"`
-	Name        string   `json:"name,omitempty"`
-	EntityName  string   `json:"entity_name,omitempty"`
-	EntityType  string   `json:"entity_type,omitempty"`
-	Description string   `json:"description,omitempty"`
-	Website     string   `json:"website,omitempty"`
-	Address     string   `json:"address,omitempty"`
-	Postcode    string   `json:"postcode,omitempty"`
-	City        string   `json:"city,omitempty"`
-	Country     string   `json:"country,omitempty"`
-	Phone       string   `json:"phone,omitempty"`
-	Email       string   `json:"email,omitempty"`
-	Activity    string   `json:"activity,omitempty"`
-	Keywords    []string `json:"keywords,omitempty"`
-	ApiUrl      string   `json:"api_url,omitempty"`
-	PublicKey   string   `json:"public_key,omitempty"`
-	// internal use
-	Score          int64     `json:"score,omitempty"`
-	LastSeenOnline time.Time `json:"last_seen_online,omitempty"`
-	ApiVersion     string    `json:"api_version,omitempty"`
-}
-
-func init() {
-	c := GetConfig()
-	Store = Storage{c.ZincUrl, c.ZincLogin, c.ZincPassword, c.RedisUrl, c.RedisPassword}
-	Store = Storage{"http://localhost:4080", "admin", "admin", "localhost:6379", ""}
-	//p := Peer{uuid.New().String(), 0, []string{"car", "highway", "images", "video"}, time.Now(), "1", "asf", ""}
-	// pa := []Peer{p}
-	// byteArray, err := json.Marshal(pa)
-	// if err != nil {
-	// 	log.Fatal(err)
-	// }
-	// ioutil.WriteFile("./peers.json", byteArray, 0644)
-	content, err := ioutil.ReadFile("./peers.json")
-	if err != nil {
-		logs.Error("Error when opening file: ", err)
-	}
-	err = json.Unmarshal(content, &Peers)
-	if err != nil {
-		logs.Error("Error during Unmarshal(): ", err)
-	}
-	Store.ImportData(LoadPeersJson("./peers.json"))
-}
-
-func AddPeers(peers []Peer) (status string) {
-	err := Store.ImportData(peers)
-	if err != nil {
-		logs.Error("Error during Unmarshal(): ", err)
-		return "error"
-	}
-	return "ok"
-}
-
-func FindPeers(query string) (peers []Peer, err error) {
-	result, err := Store.FindPeers(query)
-	if err != nil {
-		return nil, err
-	}
-	return result, nil
-}
-
-func GetPeer(uid string) (*Peer, error) {
-	return Store.GetPeer(uid)
-}
-
-func Delete(PeerId string) error {
-	err := Store.DeletePeer(PeerId)
-	if err != nil {
-		return err
-	}
-	return nil
-}

models/storage.go

@@ -1,206 +0,0 @@
-package models
-
-import (
-	"encoding/json"
-	"fmt"
-	"io"
-	"log"
-	"net/http"
-	"os"
-	"strings"
-
-	"github.com/beego/beego/logs"
-	"github.com/go-redis/redis"
-	"github.com/tidwall/gjson"
-)
-
-type Storage struct {
-	ZincUrl       string
-	ZincLogin     string
-	ZincPassword  string
-	RedisUrl      string
-	RedisPassword string
-}
-
-func LoadPeersJson(filename string) []Peer {
-	var peers []Peer
-	content, err := os.ReadFile("./peers.json")
-	if err != nil {
-		logs.Error("Error when opening file: ", err)
-	}
-	err = json.Unmarshal(content, &peers)
-	if err != nil {
-		logs.Error("Error during Unmarshal(): ", err)
-	}
-	return peers
-}
-
-func (s *Storage) ImportData(peers []Peer) error {
-	rdb := redis.NewClient(&redis.Options{
-		Addr:     s.RedisUrl,
-		Password: s.RedisPassword, // no password set
-		DB:       0,               // use default DB
-	})
-	var indexedPeers []map[string]interface{}
-	for _, p := range peers {
-		// Creating data block for indexing
-		indexedPeer := make(map[string]interface{})
-		indexedPeer["_id"] = p.PeerId
-		indexedPeer["name"] = p.Name
-		indexedPeer["keywords"] = p.Keywords
-		indexedPeer["name"] = p.Name
-		indexedPeer["entityname"] = p.EntityName
-		indexedPeer["entitytype"] = p.EntityType
-		indexedPeer["activity"] = p.Activity
-		indexedPeer["address"] = p.Address
-		indexedPeer["postcode"] = p.Postcode
-		indexedPeer["city"] = p.City
-		indexedPeer["country"] = p.Country
-		indexedPeer["description"] = p.Description
-		indexedPeer["apiurl"] = p.ApiUrl
-		indexedPeer["website"] = p.Website
-		indexedPeers = append(indexedPeers, indexedPeer)
-		// Adding peer to Redis (fast retieval and status updates)
-		jsonp, err := json.Marshal(p)
-		if err != nil {
-			return err
-		}
-		err = rdb.Set("peer:"+p.PeerId, jsonp, 0).Err()
-		if err != nil {
-			return err
-		}
-	}
-	bulk := map[string]interface{}{"index": "peers", "records": indexedPeers}
-	raw, err := json.Marshal(bulk)
-	if err != nil {
-		return err
-	}
-	req, err := http.NewRequest("POST", s.ZincUrl+"/api/_bulkv2", strings.NewReader(string(raw)))
-	if err != nil {
-		return err
-	}
-	req.SetBasicAuth(s.ZincLogin, s.ZincPassword)
-	req.Header.Set("Content-Type", "application/json")
-	req.Header.Set("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36")
-
-	resp, err := http.DefaultClient.Do(req)
-	if err != nil {
-		return err
-	}
-	defer resp.Body.Close()
-	log.Println(resp.StatusCode)
-	body, err := io.ReadAll(resp.Body)
-	if err != nil {
-		return err
-	}
-	fmt.Println(string(body))
-	return nil
-}
-
-func (s *Storage) FindPeers(queryString string) ([]Peer, error) {
-	var peers []Peer
-	query := `{
-        "search_type": "match",
-        "query":
-        {
-            "term": "` + queryString + `",
-            "start_time": "2020-06-02T14:28:31.894Z",
-            "end_time": "2029-12-02T15:28:31.894Z"
-        },
-        "from": 0,
-        "max_results": 100,
-        "_source": []
-    }`
-	req, err := http.NewRequest("POST", s.ZincUrl+"/api/peers/_search", strings.NewReader(query))
-	if err != nil {
-		log.Fatal(err)
-	}
-	req.SetBasicAuth(s.ZincLogin, s.ZincPassword)
-	req.Header.Set("Content-Type", "application/json")
-	req.Header.Set("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36")
-
-	resp, err := http.DefaultClient.Do(req)
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer resp.Body.Close()
-	log.Println(resp.StatusCode)
-	body, err := io.ReadAll(resp.Body)
-	if err != nil {
-		return nil, err
-	}
-	value := gjson.Get(string(body), "hits.hits")
-	rdb := redis.NewClient(&redis.Options{
-		Addr:     s.RedisUrl,
-		Password: s.RedisPassword, // no password set
-		DB:       0,               // use default DB
-	})
-	for _, v := range value.Array() {
-		peerBytes, err := rdb.Get("peer:" + v.Get("_id").Str).Bytes()
-		if err != nil {
-			logs.Error(err)
-		} else {
-			var p Peer
-			err = json.Unmarshal(peerBytes, &p)
-			if err != nil {
-				return nil, err
-			}
-			peers = append(peers, p)
-		}
-	}
-	return peers, nil
-}
-
-func (s *Storage) GetPeer(uid string) (*Peer, error) {
-	var peer Peer
-	rdb := redis.NewClient(&redis.Options{
-		Addr:     s.RedisUrl,
-		Password: s.RedisPassword, // no password set
-		DB:       0,               // use default DB
-	})
-	peerBytes, err := rdb.Get("peer:" + uid).Bytes()
-	if err != nil {
-		return nil, err
-	} else {
-		err = json.Unmarshal(peerBytes, &peer)
-		if err != nil {
-			return nil, err
-		}
-		return &peer, nil
-	}
-
-}
-
-func (s *Storage) DeletePeer(uid string) error {
-	// Removing from Redis
-	rdb := redis.NewClient(&redis.Options{
-		Addr:     s.RedisUrl,
-		Password: s.RedisPassword, // no password set
-		DB:       0,               // use default DB
-	})
-	err := rdb.Unlink("peer:" + uid).Err()
-	if err != nil {
-		return err
-	}
-	// Removing from Index
-	req, err := http.NewRequest("DELETE", s.ZincUrl+"/api/peers/_doc"+uid, nil)
-	if err != nil {
-		return err
-	}
-	req.SetBasicAuth(s.ZincLogin, s.ZincPassword)
-	req.Header.Set("Content-Type", "application/json")
-	req.Header.Set("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36")
-
-	resp, err := http.DefaultClient.Do(req)
-	if err != nil {
-		return err
-	}
-	defer resp.Body.Close()
-	log.Println(resp.StatusCode)
-	body, err := io.ReadAll(resp.Body)
-	if err != nil {
-		return err
-	}
-	fmt.Println(string(body))
-	return nil
-}

peers.json

@@ -1,54 +0,0 @@
-[
-    {
-        "peer_id": "a50d3697-7ede-4fe5-a385-e9d01ebc1002",
-        "name": "ASF",
-        "keywords": [
-            "car",
-            "highway",
-            "images",
-            "video"
-        ],
-        "last_seen_online": "2023-03-07T11:57:13.378707853+01:00",
-        "api_version": "1",
-        "api_url": "http://127.0.0.1:49618/v1"
-    },
-    {
-        "peer_id": "a50d3697-7ede-4fe5-a385-e9d01ebc1003",
-        "name": "IT",
-        "keywords": [
-            "car",
-            "highway",
-            "images",
-            "video"
-        ],
-        "last_seen_online": "2023-03-07T11:57:13.378707853+01:00",
-        "api_version": "1",
-        "api_url": "https://it.irtse.com/oc"
-    },
-    {
-        "peer_id": "a50d3697-7ede-4fe5-a385-e9d01ebc1004",
-        "name": "Centre de traitement des amendes",
-        "keywords": [
-            "car",
-            "highway",
-            "images",
-            "video"
-        ],
-        "last_seen_online": "2023-03-07T11:57:13.378707853+01:00",
-        "api_version": "1",
-        "api_url": "https://impots.irtse.com/oc"
-    },
-    {
-        "peer_id": "a50d3697-7ede-4fe5-a385-e9d01ebc1005",
-        "name": "Douanes",
-        "keywords": [
-            "car",
-            "highway",
-            "images",
-            "video"
-        ],
-        "last_seen_online": "2023-03-07T11:57:13.378707853+01:00",
-        "api_version": "1",
-        "api_url": "https://douanes.irtse.com/oc"
-    }
-]

pem/private1.pem

@@ -0,0 +1,3 @@
+-----BEGIN PRIVATE KEY-----
+MC4CAQAwBQYDK2VwBCIEIK2oBaOtGNchE09MBRtPd5oEOUcVUQG2ndym5wKExj7R
+-----END PRIVATE KEY-----

pem/private2.pem

@@ -0,0 +1,3 @@
+-----BEGIN PRIVATE KEY-----
+MC4CAQAwBQYDK2VwBCIEIE58GDazCyF1jp796ivSmHiCepbkC8TpzliIaQ7eGEpu
+-----END PRIVATE KEY-----

pem/private3.pem

@@ -0,0 +1,3 @@
+-----BEGIN PRIVATE KEY-----
+MC4CAQAwBQYDK2VwBCIEIAeX4O7ldwehRSnPkbzuE6csyo63vjvqAcNNujENOKUC
+-----END PRIVATE KEY-----

pem/private4.pem

@@ -0,0 +1,3 @@
+-----BEGIN PRIVATE KEY-----
+MC4CAQAwBQYDK2VwBCIEIEkgqINXDLnxIJZs2LEK9O4vdsqk43dwbULGUE25AWuR
+-----END PRIVATE KEY-----

pem/public1.pem

@@ -0,0 +1,3 @@
+-----BEGIN PUBLIC KEY-----
+MCowBQYDK2VwAyEAZ2nLJBL8a5opfa8nFeVj0SZToW8pl4+zgcSUkeZFRO4=
+-----END PUBLIC KEY-----

pem/public2.pem

@@ -0,0 +1,3 @@
+-----BEGIN PUBLIC KEY-----
+MCowBQYDK2VwAyEAIQVeSGwsjPjyepPTnzzYqVxIxviSEjZXU7C7zuNTui4=
+-----END PUBLIC KEY-----

pem/public3.pem

@@ -0,0 +1,3 @@
+-----BEGIN PUBLIC KEY-----
+MCowBQYDK2VwAyEAG95Ettl3jTi41HM8le1A9WDmOEq0ANEqpLF7zTZrfXA=
+-----END PUBLIC KEY-----

pem/public4.pem

@@ -0,0 +1,3 @@
+-----BEGIN PUBLIC KEY-----
+MCowBQYDK2VwAyEA/ymOIb0sJ0qCWrf3mKz7ACCvsMXLog/EK533JfNXZTM=
+-----END PUBLIC KEY-----

psk/psk.key

@@ -0,0 +1,3 @@
+/key/swarm/psk/1.0.0/
+/base16/
+9018b627b4d0f123d1cfcd16f33b538688ed7588cde9da8c60d587b7022399c1

routers/commentsRouter.go

@@ -1,73 +0,0 @@
-package routers
-
-import (
-	beego "github.com/beego/beego/v2/server/web"
-	"github.com/beego/beego/v2/server/web/context/param"
-)
-
-func init() {
-
-    beego.GlobalControllerRouter["oc-discovery/controllers:IdentityController"] = append(beego.GlobalControllerRouter["oc-discovery/controllers:IdentityController"],
-        beego.ControllerComments{
-            Method: "Post",
-            Router: `/`,
-            AllowHTTPMethods: []string{"post"},
-            MethodParams: param.Make(),
-            Filters: nil,
-            Params: nil})
-
-    beego.GlobalControllerRouter["oc-discovery/controllers:IdentityController"] = append(beego.GlobalControllerRouter["oc-discovery/controllers:IdentityController"],
-        beego.ControllerComments{
-            Method: "GetAll",
-            Router: `/`,
-            AllowHTTPMethods: []string{"get"},
-            MethodParams: param.Make(),
-            Filters: nil,
-            Params: nil})
-
-    beego.GlobalControllerRouter["oc-discovery/controllers:PeerController"] = append(beego.GlobalControllerRouter["oc-discovery/controllers:PeerController"],
-        beego.ControllerComments{
-            Method: "Post",
-            Router: `/`,
-            AllowHTTPMethods: []string{"post"},
-            MethodParams: param.Make(),
-            Filters: nil,
-            Params: nil})
-
-    beego.GlobalControllerRouter["oc-discovery/controllers:PeerController"] = append(beego.GlobalControllerRouter["oc-discovery/controllers:PeerController"],
-        beego.ControllerComments{
-            Method: "Get",
-            Router: `/:peerId`,
-            AllowHTTPMethods: []string{"get"},
-            MethodParams: param.Make(),
-            Filters: nil,
-            Params: nil})
-
-    beego.GlobalControllerRouter["oc-discovery/controllers:PeerController"] = append(beego.GlobalControllerRouter["oc-discovery/controllers:PeerController"],
-        beego.ControllerComments{
-            Method: "Delete",
-            Router: `/:peerId`,
-            AllowHTTPMethods: []string{"delete"},
-            MethodParams: param.Make(),
-            Filters: nil,
-            Params: nil})
-
-    beego.GlobalControllerRouter["oc-discovery/controllers:PeerController"] = append(beego.GlobalControllerRouter["oc-discovery/controllers:PeerController"],
-        beego.ControllerComments{
-            Method: "Find",
-            Router: `/find/:query`,
-            AllowHTTPMethods: []string{"get"},
-            MethodParams: param.Make(),
-            Filters: nil,
-            Params: nil})
-
-    beego.GlobalControllerRouter["oc-discovery/controllers:VersionController"] = append(beego.GlobalControllerRouter["oc-discovery/controllers:VersionController"],
-        beego.ControllerComments{
-            Method: "GetAll",
-            Router: `/`,
-            AllowHTTPMethods: []string{"get"},
-            MethodParams: param.Make(),
-            Filters: nil,
-            Params: nil})
-
-}

routers/router.go

@@ -1,36 +0,0 @@
-// @APIVersion 1.0.0
-// @Title beego Test API
-// @Description beego has a very cool tools to autogenerate documents for your API
-// @Contact astaxie@gmail.com
-// @TermsOfServiceUrl http://beego.me/
-// @License Apache 2.0
-// @LicenseUrl http://www.apache.org/licenses/LICENSE-2.0.html
-package routers
-
-import (
-	"oc-discovery/controllers"
-
-	beego "github.com/beego/beego/v2/server/web"
-)
-
-func init() {
-	ns := beego.NewNamespace("/oc",
-		beego.NSNamespace("/peer",
-			beego.NSInclude(
-				&controllers.PeerController{},
-			),
-		),
-		beego.NSNamespace("/identity",
-			beego.NSInclude(
-				&controllers.IdentityController{},
-			),
-		),
-		beego.NSNamespace("/version",
-			beego.NSInclude(
-				&controllers.VersionController{},
-			),
-		),
-	)
-
-	beego.AddNamespace(ns)
-}

tests/default_test.go

@@ -1,39 +0,0 @@
-package test
-
-import (
-	"net/http"
-	"net/http/httptest"
-	"testing"
-	"runtime"
-	"path/filepath"
-	_ "oc-discovery/routers"
-
-	beego "github.com/beego/beego/v2/server/web"
-	"github.com/beego/beego/v2/core/logs"
-	. "github.com/smartystreets/goconvey/convey"
-)
-
-func init() {
-	_, file, _, _ := runtime.Caller(0)
-	apppath, _ := filepath.Abs(filepath.Dir(filepath.Join(file, ".." + string(filepath.Separator))))
-	beego.TestBeegoInit(apppath)
-}
-
-// TestGet is a sample to run an endpoint test
-func TestGet(t *testing.T) {
-	r, _ := http.NewRequest("GET", "/v1/object", nil)
-	w := httptest.NewRecorder()
-	beego.BeeApp.Handlers.ServeHTTP(w, r)
-
-	logs.Info("testing", "TestGet", "Code[%d]\n%s", w.Code, w.Body.String())
-
-	Convey("Subject: Test Station Endpoint\n", t, func() {
-	        Convey("Status Code Should Be 200", func() {
-	                So(w.Code, ShouldEqual, 200)
-	        })
-	        Convey("The Result Should Not Be Empty", func() {
-	                So(w.Body.Len(), ShouldBeGreaterThan, 0)
-	        })
-	})
-}
-