diff --git a/proposals/2026-04-23/reg-cbn-2026-001-new_node/provenance.json b/proposals/2026-04-23/reg-cbn-2026-001-new_node/provenance.json
new file mode 100644
index 0000000..489e9a8
--- /dev/null
+++ b/proposals/2026-04-23/reg-cbn-2026-001-new_node/provenance.json
@@ -0,0 +1,22 @@
+{
+  "kind": "new_node",
+  "target_layer": "L1",
+  "target_label": "RegulatoryObligation",
+  "target_urn": "urn:cab:compliance:l1:obligation/reg-cbn-2026-001",
+  "source_document_id": "5e04f744-f321-48aa-9ba7-006f73614aeb",
+  "source_chunk_ids": [
+    "a20493a0-1c22-4e83-9cfe-9633e1d39931",
+    "90b2b23c-8030-448b-933f-18518655c3fe"
+  ],
+  "source_episode_ids": [],
+  "confidence": 0.613,
+  "confidence_signals": {
+    "frequency": 0.5,
+    "cross_doc": 0.0,
+    "schema_match": 1.0,
+    "llm_self_rate": 0.95
+  },
+  "proposed_by": "curator-regobligation-v1",
+  "prompt_version": "regobligation-v1",
+  "proposed_at": "2026-04-23T17:55:12.807678Z"
+}