diff --git a/servers/unraid/supermemory-poc/poc.py b/servers/unraid/supermemory-poc/poc.py
index 7157c6b..8a0d630 100755
--- a/servers/unraid/supermemory-poc/poc.py
+++ b/servers/unraid/supermemory-poc/poc.py
@@ -53,6 +53,14 @@ def require_token(env_name: str) -> str:
     return token
 
 
+def contains_source(value: Any, expected: str) -> bool:
+    if isinstance(value, dict):
+        return value.get("source") == expected or any(contains_source(item, expected) for item in value.values())
+    if isinstance(value, list):
+        return any(contains_source(item, expected) for item in value)
+    return False
+
+
 def request_multipart_json(
     url: str,
     *,
@@ -326,6 +334,9 @@ def smoke(args: argparse.Namespace) -> None:
     )
     if not found:
         raise RuntimeError(f"document {document_id or marker} was not searchable within {args.wait}s")
+    raw_metadata_traceable = contains_source(search.get("results") or [], "poc-smoke")
+    if not raw_metadata_traceable:
+        raise RuntimeError("v4 document search did not return the source metadata required for attribution")
     profile_shape_ok = isinstance(profile, dict) and "profile" in profile
     if not profile_shape_ok:
         raise RuntimeError("v4 profile response is missing the profile field expected by Hermes")
@@ -334,6 +345,7 @@ def smoke(args: argparse.Namespace) -> None:
             {
                 "document_id": document_id,
                 "documents_search": "ok",
+                "raw_metadata_traceability": "ok",
                 "profile": "ok",
                 "conversation_ingest": "accepted",
                 "container_tag": container,