{
  "height": 0,
  "block_hash": "2588db207c9c252fab360dd34a6b572c418fbbbfb9d5d1076ad76f933f196170",
  "status": "not_submitted",
  "bitcoin_block_height": null,
  "digest": {
    "alg": "sha256",
    "hex": "2588db207c9c252fab360dd34a6b572c418fbbbfb9d5d1076ad76f933f196170",
    "preimage": "block:{\"at\":\"2026-10-12T18:51:35.363Z\",\"entry_count\":2,\"first_seq\":1,\"height\":0,\"key_id\":\"key_d604d9aba8cc2801\",\"last_seq\":2,\"merkle_root\":\"45a00a8fbb1269aca26ad04ec59a02ba4ea73432349e18eead7ae5243a70c142\",\"prev_hash\":\"0000000000000000000000000000000000000000000000000000000000000000\",\"v\":1}"
  },
  "calendars": [],
  "proof_url": "https://www.rightshold.com/v1/ledger/blocks/0/anchor.ots",
  "how_to_verify": "Download the .ots proof and run `ots verify -d <block_hash> <file>.ots` with the OpenTimestamps client, which checks the Bitcoin attestation against Bitcoin block headers. The digest is the block hash: sha256 of digest.preimage, the text \"block:\" followed by the canonical block header, which is the same header the issuer signs."
}