{
  "height": 57,
  "block_hash": "bf61797fbf9f9c252933cd56bdbb3a6988158482ebfa30386bdd53760d690014",
  "header": {
    "v": 1,
    "height": 57,
    "prev_hash": "e83386a58cb7d7a1d64817e541f8d0784e6ae7911e6a015bd9d016d53859421f",
    "merkle_root": "6d154c53fee9ad16361781d58524f0ed2c7fb170c8036a85a84d4d6398d6f42d",
    "first_seq": 144,
    "last_seq": 145,
    "entry_count": 2,
    "at": "2026-11-07T01:29:15.101Z",
    "key_id": "key_a521921c2ba20669"
  },
  "signed_bytes": "{\"at\":\"2026-11-07T01:29:15.101Z\",\"entry_count\":2,\"first_seq\":144,\"height\":57,\"key_id\":\"key_a521921c2ba20669\",\"last_seq\":145,\"merkle_root\":\"6d154c53fee9ad16361781d58524f0ed2c7fb170c8036a85a84d4d6398d6f42d\",\"prev_hash\":\"e83386a58cb7d7a1d64817e541f8d0784e6ae7911e6a015bd9d016d53859421f\",\"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": "xSzPCqiqZ9Nxm3WO60k9NHEzJLUynncrrzdLzyhcv6VD/rzZh2JqG1RbbO9ndFVWMEtn7Og93/YUCF3GDVzCCg==",
      "at": "2026-11-07T01:30:03.992Z"
    }
  ],
  "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."
}