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docs/diagrams/04_indexer_publish.mmd

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+sequenceDiagram
+    title Indexer — Pair A publie, Pair B publie (handleNodePublish → DHT)
+
+    participant NodeA as Node A
+    participant NodeB as Node B
+    participant Indexer as IndexerService (partagé)
+    participant DHT as DHT Kademlia
+
+    Note over NodeA: Après claimInfo ou refresh TTL
+
+    par Pair A publie son PeerRecord
+        NodeA->>Indexer: TempStream /opencloud/record/publish/1.0
+        NodeA->>Indexer: json.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 Heartbeat actif pour A
+            Indexer->>Indexer: StreamRecord A → DID_A, Record=PeerRecord A, LastSeen=now
+            Indexer->>DHT: PutValue("/node/"+DID_A, PeerRecord A JSON)
+            DHT-->>Indexer: ok
+        else Pas de heartbeat
+            Indexer->>NodeA: (erreur "no heartbeat", stream close)
+        end
+    and Pair B publie son PeerRecord
+        NodeB->>Indexer: TempStream /opencloud/record/publish/1.0
+        NodeB->>Indexer: json.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 Heartbeat actif pour B
+            Indexer->>Indexer: StreamRecord B → DID_B, Record=PeerRecord B, LastSeen=now
+            Indexer->>DHT: PutValue("/node/"+DID_B, PeerRecord B JSON)
+            DHT-->>Indexer: ok
+        else Pas de heartbeat
+            Indexer->>NodeB: (erreur "no heartbeat", stream close)
+        end
+    end
+
+    Note over DHT: DHT contient maintenant<br/>"/node/DID_A" et "/node/DID_B"