diff --git a/poc-memory/src/store/ops.rs b/poc-memory/src/store/ops.rs
index 06477da..6c6ea94 100644
--- a/poc-memory/src/store/ops.rs
+++ b/poc-memory/src/store/ops.rs
@@ -76,11 +76,17 @@ impl Store {
         let _lock = StoreLock::acquire()?;
         self.refresh_nodes()?;
 
+        let prov = Provenance::from_env()
+            .map(|p| p.label().to_string())
+            .unwrap_or_else(|| "manual".to_string());
+
         let node = self.nodes.get(key)
             .ok_or_else(|| format!("No node '{}'", key))?;
         let mut deleted = node.clone();
         deleted.deleted = true;
         deleted.version += 1;
+        deleted.provenance = prov;
+        deleted.timestamp = now_epoch();
         self.append_nodes_unlocked(std::slice::from_ref(&deleted))?;
         self.nodes.remove(key);
         Ok(())
@@ -109,15 +115,23 @@ impl Store {
             .ok_or_else(|| format!("No node '{}'", old_key))?
             .clone();
 
+        let prov = Provenance::from_env()
+            .map(|p| p.label().to_string())
+            .unwrap_or_else(|| "manual".to_string());
+
         // New version under the new key
         let mut renamed = node.clone();
         renamed.key = new_key.to_string();
         renamed.version += 1;
+        renamed.provenance = prov.clone();
+        renamed.timestamp = now_epoch();
 
         // Deletion record for the old key (same UUID, independent version counter)
         let mut tombstone = node.clone();
         tombstone.deleted = true;
         tombstone.version += 1;
+        tombstone.provenance = prov;
+        tombstone.timestamp = now_epoch();
 
         // Collect affected relations and update their debug key strings
         let updated_rels: Vec<_> = self.relations.iter()