{
  "height": 53,
  "block_hash": "fe2d87aae3979159b364742489bc3277e19f33c2679255d2b915178a96a7cce9",
  "header": {
    "v": 1,
    "height": 53,
    "prev_hash": "00fc8a3061b0683c65f0e44656372507dbffd3560bfb48d666ff55ab5d22e90e",
    "merkle_root": "733ddf3fbab040b9aa8a4a3abbc92c7c23911055a869250a5b0c9693cf5ddc98",
    "first_seq": 137,
    "last_seq": 138,
    "entry_count": 2,
    "at": "2026-11-07T01:19:15.048Z",
    "key_id": "key_a521921c2ba20669"
  },
  "signed_bytes": "{\"at\":\"2026-11-07T01:19:15.048Z\",\"entry_count\":2,\"first_seq\":137,\"height\":53,\"key_id\":\"key_a521921c2ba20669\",\"last_seq\":138,\"merkle_root\":\"733ddf3fbab040b9aa8a4a3abbc92c7c23911055a869250a5b0c9693cf5ddc98\",\"prev_hash\":\"00fc8a3061b0683c65f0e44656372507dbffd3560bfb48d666ff55ab5d22e90e\",\"v\":1}",
  "count": 1,
  "domains": 1,
  "distinct": 1,
  "cosignatures": [
    {
      "label": "W-001",
      "key_fingerprint": "77b542fc",
      "relationship": "affiliated",
      "public_key_pem": "-----BEGIN PUBLIC KEY-----\nMCowBQYDK2VwAyEAnJnfTc5OB9AM75nfNzHGtIt1GnTRB0nY5FbWNwl43Q0=\n-----END PUBLIC KEY-----\n",
      "signature": "XQvTABfDDziQAKKmPHU9fvdt2gY8ZWildspJmXNQ1q1P03XnDYi4UilcRDwfmAeZBl1QKvzZ6iQlDc8EnxTnAQ==",
      "at": "2026-11-07T01:20:33.835Z"
    }
  ],
  "how_to_verify": "Each signature is Ed25519 over signed_bytes (canonical(header)), checked with the public_key_pem carried in its cosignature record. Witnesses are labelled by registration order (W-001, W-002, ...); public read models never carry a witness's domain or full key id."
}