diff --git a/src/cotdata/registry.yaml b/src/cotdata/registry.yaml
index 84f91a9..038154a 100644
--- a/src/cotdata/registry.yaml
+++ b/src/cotdata/registry.yaml
@@ -50,6 +50,13 @@ Energies:
     cftc_code: "022651"
   NG:
     cftc_code: "023651"
+  # Added 2026-08-04 for crowdmon's contract-spec backlog. NOT a duplicate of CL: open
+  # interest tracks it (0.771) but Managed Money net is negative and flow correlation is
+  # near zero, so it is a different holder base (crowdmon
+  # docs/design/amendments-2026-08-03.md §C15). Norgate carries it as &WBS.
+  WBS:                      # WTI Crude Oil (ICE Futures Europe)
+    cftc_code: "067411"
+    databento: null         # ICE product — not on GLBX.MDP3
 
 Grains:
   ZC:
@@ -62,6 +69,12 @@ Grains:
     cftc_code: "007601"
   ZW:
     cftc_code: "001602"
+  # Added 2026-08-04 for crowdmon's contract-spec backlog: the smallest market of the ten
+  # candidates and the strongest on the criterion that decides, Managed Money share 0.433
+  # against a covered median of 0.137 (crowdmon docs/design/amendments-2026-08-03.md §C17,
+  # decision in docs/handoffs/2026-08-03-spec-backlog-producer.md §9).
+  ZR:                       # Rough Rice (CBOT)
+    cftc_code: "039601"
   # Held-out generalization grains (new symbols, never in the deploy selection).
   ZO:                       # Oats (CBOT)
     cftc_code: "004603"
diff --git a/tests/test_registry.py b/tests/test_registry.py
index 072352d..9987c02 100644
--- a/tests/test_registry.py
+++ b/tests/test_registry.py
@@ -17,7 +17,7 @@
 # ── loading & basic shape ────────────────────────────────────────────────────
 def test_registry_loads_all_symbols():
     symbols = all_symbols()
-    assert len(symbols) == 49, f"Expected 49 symbols, got {len(symbols)}"
+    assert len(symbols) == 51, f"Expected 51 symbols, got {len(symbols)}"
 
 
 def test_basic_symbol_loading():
@@ -80,7 +80,7 @@ def test_by_asset_class():
 # ── hashability (frozen dataclass must stay hashable, incl. scaled hist_codes) ─
 def test_symbols_are_hashable():
     # Would raise TypeError: unhashable type 'list' if hist_codes held a list.
-    assert len(set(all_symbols())) == 49
+    assert len(set(all_symbols())) == 51
     assert symbol("LBR") in {symbol("LBR")}
     hash(symbol("LBR"))  # scaled hist_codes — the tricky one
 
@@ -247,5 +247,9 @@ def test_golden_identity_checksum():
     (registry.yaml carries FIXED identity only; unintended drift is a bug)."""
     ident = sorted((s.internal, s.cftc_code, s.asset_class) for s in all_symbols())
     digest = hashlib.md5(repr(ident).encode()).hexdigest()
-    assert digest == "e6b0b92caa0f25f68dea62024bddf899", (
+    # Updated 2026-08-04 for a deliberate addition: ZR (rough rice, 039601) and WBS
+    # (ICE Europe WTI, 067411), the two codes of crowdmon's contract-spec backlog that
+    # Norgate actually carries. Previous value e6b0b92caa0f25f68dea62024bddf899, over 49
+    # symbols.
+    assert digest == "3dd3df8eb26d850654107e16568cddb6", (
         "registry identity facts changed; update the expected checksum if intended")