{
  "height": 73,
  "block_hash": "bb7eb2517d16ee5b4f074e5b76bb53621ddcf711d379f9357beb3d43cfad04f0",
  "header": {
    "v": 1,
    "height": 73,
    "prev_hash": "b98380f0c149bfaaaf331e4e30cf9a3a19ff7f901a04cc09fc7a246273d8ee98",
    "merkle_root": "312c545889270f9f651524a2b60b7c6acbbfee049e5ccb01c3596ccb2c1c34f1",
    "first_seq": 168,
    "last_seq": 168,
    "entry_count": 1,
    "at": "2026-11-07T02:07:15.221Z",
    "key_id": "key_a521921c2ba20669"
  },
  "signed_bytes": "{\"at\":\"2026-11-07T02:07:15.221Z\",\"entry_count\":1,\"first_seq\":168,\"height\":73,\"key_id\":\"key_a521921c2ba20669\",\"last_seq\":168,\"merkle_root\":\"312c545889270f9f651524a2b60b7c6acbbfee049e5ccb01c3596ccb2c1c34f1\",\"prev_hash\":\"b98380f0c149bfaaaf331e4e30cf9a3a19ff7f901a04cc09fc7a246273d8ee98\",\"v\":1}",
  "count": 0,
  "domains": 0,
  "distinct": 0,
  "cosignatures": [],
  "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."
}