{
  "height": 96,
  "block_hash": "7a2856de40766e4ff405d9d212d7a72bbd74da35722d25e05aab40d32a206c68",
  "status": "confirmed",
  "bitcoin_block_height": 972980,
  "digest": {
    "alg": "sha256",
    "hex": "7a2856de40766e4ff405d9d212d7a72bbd74da35722d25e05aab40d32a206c68",
    "preimage": "block:{\"at\":\"2026-10-24T21:32:19.748Z\",\"entry_count\":1,\"first_seq\":99,\"height\":96,\"key_id\":\"key_41eb7b6d1b11968a\",\"last_seq\":99,\"merkle_root\":\"cde4a87c037e35fee5ab1e7a6ec116e44bf693769fe9598de6c29cd53a6ff2f4\",\"prev_hash\":\"ca8dc3ca91c4ee1ebf948ab5695358e56f753bedffd210b6bb3eaccb4fb23464\",\"v\":1}"
  },
  "calendars": [
    {
      "calendar": "https://a.pool.opentimestamps.org",
      "status": "confirmed",
      "submitted_at": "2026-10-24T21:36:48.984Z",
      "updated_at": "2026-10-24T22:38:37.669Z",
      "bitcoin_block_height": 972980,
      "attestations": [
        {
          "type": "pending",
          "uri": "https://alice.btc.calendar.opentimestamps.org",
          "commitment": "6add24f32e1407e4f3dbf5af50a235d84139d5a6de0a04eb1a9fca93eb70d6142672f4ea338bf69af68e13da"
        },
        {
          "type": "bitcoin",
          "block_height": 972980,
          "merkle_root": "f665bc2583468bdff0f9264d691ad0935c7f16bfd2dc90e4856c094452883df0"
        }
      ]
    },
    {
      "calendar": "https://b.pool.opentimestamps.org",
      "status": "confirmed",
      "submitted_at": "2026-10-24T21:36:48.984Z",
      "updated_at": "2026-10-24T22:38:37.669Z",
      "bitcoin_block_height": 972980,
      "attestations": [
        {
          "type": "pending",
          "uri": "https://bob.btc.calendar.opentimestamps.org",
          "commitment": "6add24f2fdc91e71710053b38c546476a0a1ef8768fc156fa311dae8c3079fa6971697ef283e113a125fa915"
        },
        {
          "type": "bitcoin",
          "block_height": 972980,
          "merkle_root": "f665bc2583468bdff0f9264d691ad0935c7f16bfd2dc90e4856c094452883df0"
        }
      ]
    },
    {
      "calendar": "https://finney.calendar.eternitywall.com",
      "status": "confirmed",
      "submitted_at": "2026-10-24T21:36:48.984Z",
      "updated_at": "2026-10-25T02:39:47.523Z",
      "bitcoin_block_height": 972999,
      "attestations": [
        {
          "type": "pending",
          "uri": "https://finney.calendar.eternitywall.com",
          "commitment": "6add24f2757391a4a8b73e1275f6a6031666ebec187371d2f7378508254a089fff87982f5cb89f8066c92c2d"
        },
        {
          "type": "bitcoin",
          "block_height": 972999,
          "merkle_root": "ae0e717f0d642956016a8572888d23fb045efcac654b542c5ac908707f3b5590"
        }
      ]
    }
  ],
  "proof_url": "https://www.rightshold.com/v1/ledger/blocks/96/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."
}