{
  "height": 95,
  "block_hash": "5379853cdd920ac1cb0741db34b1c13017d5a9a2f9af756daadba18be3567c0c",
  "status": "confirmed",
  "bitcoin_block_height": 974888,
  "digest": {
    "alg": "sha256",
    "hex": "5379853cdd920ac1cb0741db34b1c13017d5a9a2f9af756daadba18be3567c0c",
    "preimage": "block:{\"at\":\"2026-11-07T03:01:00.362Z\",\"entry_count\":1,\"first_seq\":202,\"height\":95,\"key_id\":\"key_a521921c2ba20669\",\"last_seq\":202,\"merkle_root\":\"0516367463492ed73a307fe7a3801cf5e4093a49280e5c7c743e9163cebde411\",\"prev_hash\":\"f30deddc685a2323a830c940f3dc3a17dc191ca40d4f32de0422cc648d4196ba\",\"v\":1}"
  },
  "calendars": [
    {
      "calendar": "https://a.pool.opentimestamps.org",
      "status": "confirmed",
      "submitted_at": "2026-11-07T03:08:43.475Z",
      "updated_at": "2026-11-07T05:08:43.485Z",
      "bitcoin_block_height": 974888,
      "attestations": [
        {
          "type": "pending",
          "uri": "https://alice.btc.calendar.opentimestamps.org",
          "commitment": "6aee963d77a4f06650dcf91a9bd7686d995d9ec9bc66d4f4cfb0eea6b66f8f9062adb6dafbaea3ac5be68a8b"
        },
        {
          "type": "bitcoin",
          "block_height": 974888,
          "merkle_root": "a373ea77dcacd26df989734c2bed34895920c60a915ed91eb73aa06c53238081"
        }
      ]
    },
    {
      "calendar": "https://b.pool.opentimestamps.org",
      "status": "confirmed",
      "submitted_at": "2026-11-07T03:08:43.475Z",
      "updated_at": "2026-11-07T05:08:43.485Z",
      "bitcoin_block_height": 974888,
      "attestations": [
        {
          "type": "pending",
          "uri": "https://bob.btc.calendar.opentimestamps.org",
          "commitment": "6aee963de2d690d275414b63ac9196b64e744b20c540d01b305a5305bfad50f4a4220a19c1c8755483255b3a"
        },
        {
          "type": "bitcoin",
          "block_height": 974888,
          "merkle_root": "a373ea77dcacd26df989734c2bed34895920c60a915ed91eb73aa06c53238081"
        }
      ]
    },
    {
      "calendar": "https://finney.calendar.eternitywall.com",
      "status": "pending",
      "submitted_at": "2026-11-07T03:08:43.475Z",
      "updated_at": "2026-11-07T03:08:43.475Z",
      "bitcoin_block_height": null,
      "attestations": [
        {
          "type": "pending",
          "uri": "https://finney.calendar.eternitywall.com",
          "commitment": "6aee963dcc8487671c6da4fc5df7c29b37e9eaea6957c415d21253e5748130c6354d7e61a82327da13c0ed81"
        }
      ]
    }
  ],
  "proof_url": "https://www.a2ally.com/v1/ledger/blocks/95/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."
}