diff --git a/controllers/peer.go b/controllers/peer.go
index 664f570..5775a2c 100644
--- a/controllers/peer.go
+++ b/controllers/peer.go
@@ -148,10 +148,9 @@ func (o *PeerController) Partner() {
 func (o *PeerController) Blacklist() {
 	user, peerID, groups := oclib.ExtractTokenInfo(*o.Ctx.Request)
 	id := o.Ctx.Input.Param(":id")
-	o.Data["json"] = oclib.NewRequest(oclib.LibDataEnum(oclib.PEER), user, peerID, groups, nil).UpdateOne(map[string]interface{}{
-		"relation": peer.BLACKLIST,
-		"state":    peer.OFFLINE,
-	}, id)
+	req := oclib.NewRequestAdmin(oclib.LibDataEnum(oclib.PEER), user, peerID, groups, nil)
+	data := req.LoadOne(id)
+	o.changeRelation(data.ToPeer(), peer.BLACKLIST, req)
 }
 
 // used from : peer ask, or response, only from peer origin is authorized to change...
@@ -176,9 +175,15 @@ func (o *PeerController) changeRelation(dest *peer.Peer, relation peer.PeerRelat
 	}
 	// store and return Id or post with UUID
 	if dest != nil {
-		if !dest.Verify && relation == peer.PARTNER {
-			relation = peer.PENDING_PARTNER
-			if _, err := tools.NewHTTPCaller(map[tools.DataType]map[tools.METHOD]string{}).CallGet(dest.Url, "/"+request.PeerID+"/link/"+relation.Path()); err != nil {
+		if !dest.Verify {
+			switch relation {
+			case peer.PARTNER:
+				relation = peer.PENDING_PARTNER
+			case peer.BLACKLIST:
+				relation = peer.NONE
+			}
+			if _, err := tools.NewHTTPCaller(map[tools.DataType]map[tools.METHOD]string{}).CallGet(
+				dest.Url, "/"+request.PeerID+"/link/"+relation.Path()); err != nil {
 				o.Data["json"] = map[string]interface{}{
 					"data":  nil,
 					"code":  400,
diff --git a/go.mod b/go.mod
index 7d2e553..988a296 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,7 @@ go 1.24.6
 toolchain go1.24.11
 
 require (
-	cloud.o-forge.io/core/oc-lib v0.0.0-20260126093615-bc94f2b188e6
+	cloud.o-forge.io/core/oc-lib v0.0.0-20260126120055-055e6c70cdd7
 	github.com/beego/beego/v2 v2.3.8
 	github.com/smartystreets/goconvey v1.7.2
 )
diff --git a/go.sum b/go.sum
index 92c61a0..576e1b5 100644
--- a/go.sum
+++ b/go.sum
@@ -18,6 +18,10 @@ cloud.o-forge.io/core/oc-lib v0.0.0-20260123065115-f3d7c65b18d1 h1:K7ind/dAshdoF
 cloud.o-forge.io/core/oc-lib v0.0.0-20260123065115-f3d7c65b18d1/go.mod h1:vHWauJsS6ryf7UDqq8hRXoYD5RsONxcFTxeZPOztEuI=
 cloud.o-forge.io/core/oc-lib v0.0.0-20260126093615-bc94f2b188e6 h1:Sxjq1lQwSl+gkUYag4wAb6j74uU/JZviw1hkFavt58o=
 cloud.o-forge.io/core/oc-lib v0.0.0-20260126093615-bc94f2b188e6/go.mod h1:vHWauJsS6ryf7UDqq8hRXoYD5RsONxcFTxeZPOztEuI=
+cloud.o-forge.io/core/oc-lib v0.0.0-20260126113404-85a8857938f5 h1:pl6/u6UXyFcfCU+xyQcSY8Lkby68EVWswxG2Oaq476A=
+cloud.o-forge.io/core/oc-lib v0.0.0-20260126113404-85a8857938f5/go.mod h1:vHWauJsS6ryf7UDqq8hRXoYD5RsONxcFTxeZPOztEuI=
+cloud.o-forge.io/core/oc-lib v0.0.0-20260126120055-055e6c70cdd7 h1:LAK86efqe2HNV1Tkym1TpvzL1Xsj3F0ClsK/snfejD0=
+cloud.o-forge.io/core/oc-lib v0.0.0-20260126120055-055e6c70cdd7/go.mod h1:vHWauJsS6ryf7UDqq8hRXoYD5RsONxcFTxeZPOztEuI=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/beego/beego/v2 v2.3.8 h1:wplhB1pF4TxR+2SS4PUej8eDoH4xGfxuHfS7wAk9VBc=
 github.com/beego/beego/v2 v2.3.8/go.mod h1:8vl9+RrXqvodrl9C8yivX1e6le6deCK6RWeq8R7gTTg=
diff --git a/infrastructure/dht.go b/infrastructure/dht.go
index f73b70b..32633d1 100644
--- a/infrastructure/dht.go
+++ b/infrastructure/dht.go
@@ -8,6 +8,7 @@ import (
 	"fmt"
 	"oc-peer/conf"
 	"slices"
+	"sync"
 	"time"
 
 	oclib "cloud.o-forge.io/core/oc-lib"
@@ -39,6 +40,7 @@ type DHTService struct {
 	Host  host.Host
 	DHT   *dht.IpfsDHT
 	Cache []string
+	mutex sync.RWMutex
 }
 
 var singletonService *DHTService
@@ -93,7 +95,9 @@ func (d *DHTService) RefreshKeys(ctx context.Context, interval time.Duration) {
 				return
 			case <-ticker.C:
 				s := []string{}
+				d.mutex.Lock()
 				s = append(s, d.Cache...)
+				d.mutex.Unlock()
 				for _, key := range s {
 					_, _ = d.GetValue(ctx, key)
 				}
@@ -111,9 +115,11 @@ func (d *DHTService) PutValue(
 	if err != nil {
 		return err
 	}
+	d.mutex.Lock()
 	if !slices.Contains(d.Cache, key) {
 		d.Cache = append(d.Cache, key)
 	}
+	d.mutex.Unlock()
 	return nil
 }
 
@@ -124,22 +130,27 @@ func (d *DHTService) GetValue(
 	dht, err := d.DHT.GetValue(ctx, key)
 	if err != nil {
 		cache := []string{}
+		d.mutex.Lock()
 		for _, c := range d.Cache {
 			if c != key {
 				cache = append(cache, c)
 			}
 		}
 		d.Cache = cache
+		d.mutex.Unlock()
 		return nil, err
 	}
+	d.mutex.Lock()
 	if !slices.Contains(d.Cache, key) {
 		d.Cache = append(d.Cache, key)
 	}
-	var data *DHTRecord
-	json.Unmarshal(dht, data)
+	d.mutex.Unlock()
+	var data DHTRecord
+	json.Unmarshal(dht, &data)
 
-	if data == nil {
-		return nil, errors.New("no record found")
+	peerID, err := oclib.GenerateNodeID()
+	if err != nil {
+		return nil, err
 	}
 
 	access := pp.NewAccessor(&tools.APIRequest{Admin: true})
@@ -150,7 +161,7 @@ func (d *DHTService) GetValue(
 		},
 		State:         pp.ONLINE,
 		Relation:      pp.SELF,
-		PeerID:        d.Host.ID().String(),
+		PeerID:        peerID,
 		PublicKey:     string(data.PubKey),
 		Url:           data.URL,
 		NATSUrl:       oclib.GetConfig().NATSUrl,
@@ -168,14 +179,15 @@ func (d *DHTService) GetValue(
 		access.UpdateOne(f, f.GetID())
 	}
 
-	return data, err
+	return &data, err
 }
 
-func (d *DHTService) generateKey(
-	sub string,
-	name string,
-) string {
-	return "/opencloud/" + sub + "/" + name
+func (d *DHTService) generateKey() (string, error) {
+	s, err := oclib.GenerateNodeID()
+	if err != nil {
+		return s, err
+	}
+	return "/opencloud/peer/" + s, nil
 }
 
 // Create your peer.
@@ -188,14 +200,20 @@ func (d *DHTService) ClaimName(
 		return nil, errors.New("no endpoint found for peer" + name)
 	}
 
+	peerID, err := oclib.GenerateNodeID()
+	if err != nil {
+		return nil, err
+	}
+
 	pub := d.Host.Peerstore().PubKey(d.Host.ID())
 	pubBytes, _ := pub.Raw()
 
 	now := time.Now()
 	expiry := now.Add(1 * time.Hour)
+
 	rec := DHTRecord{
 		Name:   name,
-		PeerID: d.Host.ID().String(),
+		PeerID: peerID,
 		PubKey: pubBytes,
 	}
 
@@ -210,12 +228,15 @@ func (d *DHTService) ClaimName(
 
 	data, _ := json.Marshal(rec)
 
-	key := d.generateKey("peer", rec.Name)
+	key, err := d.generateKey()
+	if err != nil {
+		return nil, err
+	}
 
 	// retrieve your key name in standard
 	old, err := d.GetValue(ctx, key)
 	if err == nil {
-		if old.PeerID != d.Host.ID().String() { // check if someone claims your name before
+		if old.PeerID != peerID { // check if someone claims your name before
 			return nil, errors.New("name already claimed by another peer")
 			// TODO : can be fragile if 2 peers connect at the same time
 		}
@@ -232,6 +253,9 @@ func (d *DHTService) ClaimName(
 	pubStr := base64.StdEncoding.EncodeToString(pubBytes)
 	d.Key = key
 	access := pp.NewAccessor(&tools.APIRequest{Admin: true})
+	if err != nil {
+		return nil, err
+	}
 	p := &pp.Peer{
 		AbstractObject: utils.AbstractObject{
 			UUID: uuid.New().String(),
@@ -239,7 +263,7 @@ func (d *DHTService) ClaimName(
 		},
 		State:         pp.ONLINE,
 		Relation:      pp.SELF,
-		PeerID:        d.Host.ID().String(),
+		PeerID:        peerID,
 		PublicKey:     pubStr,
 		Url:           endPoint,
 		NATSUrl:       oclib.GetConfig().NATSUrl,
@@ -248,8 +272,12 @@ func (d *DHTService) ClaimName(
 	if founded, _, err := access.Search(nil, fmt.Sprintf("%v", pp.SELF.EnumIndex()), false); err != nil || len(founded) == 0 {
 		access.StoreOne(p)
 	} else if f, _, err := access.LoadOne(founded[0].GetID()); err == nil {
+		peerID, err := oclib.GenerateNodeID()
+		if err != nil {
+			return nil, err
+		}
 		f.(*pp.Peer).Name = name
-		f.(*pp.Peer).PeerID = d.Host.ID().String()
+		f.(*pp.Peer).PeerID = peerID
 		f.(*pp.Peer).State = pp.ONLINE
 		f.(*pp.Peer).Url = endPoint
 		f.(*pp.Peer).NATSUrl = oclib.GetConfig().NATSUrl
@@ -340,7 +368,10 @@ func (d *DHTService) DiscoverPeers(
 	name string,
 ) ([]*pp.Peer, error) {
 	peers := []*pp.Peer{}
-	key := d.generateKey("peer", name)
+	key, err := d.generateKey()
+	if err != nil {
+		return nil, err
+	}
 	datas, err := d.DHT.SearchValue(ctx, key)
 	if err != nil {
 		return nil, errors.New("no DHT peer not found")
@@ -359,7 +390,10 @@ func (d *DHTService) GetPeer(
 	ctx context.Context,
 	name string,
 ) (*pp.Peer, error) {
-	key := d.generateKey("peer", name)
+	key, err := d.generateKey()
+	if err != nil {
+		return nil, err
+	}
 	data, err := d.GetValue(ctx, key)
 	if err != nil {
 		return nil, errors.New("no DHT peer not found")
@@ -393,7 +427,3 @@ func (d *DHTService) existsDHT(ctx context.Context) (*DHTRecord, error) {
 	}
 	return rec, nil
 }
-
-/*
-Apply Name interlude...
-*/