{
  "height": 4,
  "block_hash": "c6fbc96265961f34d7f5286ed4bb91d7817caa31c35fe928cd7f13593b1258e6",
  "header": {
    "v": 1,
    "height": 4,
    "prev_hash": "096a91168ec14cf7848b7248874f8aaa8083a2957c927a05a278f648e4720469",
    "merkle_root": "d8ea9f9940fcfbe4c228dfb89819360a9c0021a3ebeb8e70b025ec17f4ef56d5",
    "first_seq": 52,
    "last_seq": 53,
    "entry_count": 2,
    "at": "2026-11-06T22:25:18.455Z",
    "key_id": "key_a521921c2ba20669"
  },
  "signed_bytes": "{\"at\":\"2026-11-06T22:25:18.455Z\",\"entry_count\":2,\"first_seq\":52,\"height\":4,\"key_id\":\"key_a521921c2ba20669\",\"last_seq\":53,\"merkle_root\":\"d8ea9f9940fcfbe4c228dfb89819360a9c0021a3ebeb8e70b025ec17f4ef56d5\",\"prev_hash\":\"096a91168ec14cf7848b7248874f8aaa8083a2957c927a05a278f648e4720469\",\"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."
}