{
  "height": 43,
  "block_hash": "8e86f0a03a95985ccfece3338601918a25d7ff136828eaac1b3f734b53cb7945",
  "header": {
    "v": 1,
    "height": 43,
    "prev_hash": "eb368a4b22bdf9cc3d5f98e6b8324505c401f3a9f5322adc4440c03d93e97f6e",
    "merkle_root": "326629e897540782e60f5ccf74efc9da21a7cf2cc897eda4c5d6eaeda2f82b06",
    "first_seq": 122,
    "last_seq": 123,
    "entry_count": 2,
    "at": "2026-11-07T00:54:14.930Z",
    "key_id": "key_a521921c2ba20669"
  },
  "signed_bytes": "{\"at\":\"2026-11-07T00:54:14.930Z\",\"entry_count\":2,\"first_seq\":122,\"height\":43,\"key_id\":\"key_a521921c2ba20669\",\"last_seq\":123,\"merkle_root\":\"326629e897540782e60f5ccf74efc9da21a7cf2cc897eda4c5d6eaeda2f82b06\",\"prev_hash\":\"eb368a4b22bdf9cc3d5f98e6b8324505c401f3a9f5322adc4440c03d93e97f6e\",\"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": "+o7k9S9bHY3OuUnfAK8UTYepwqkB4CxhKJpAy1P8MTDP13mwF+v7vKiHYhymOUNmnU5aLU3rcZ0X7nXErWxjBw==",
      "at": "2026-11-07T00:56:19.117Z"
    }
  ],
  "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."
}