Susana Allen, Rosalba Espadín, Isaac Sosa, Alejandro Allen, Jackeline Cepeda & Rodger Hudson
{"copyright_id":"0x075c936fb544eda4ff6a873389c36cf10b9e75b9dcc342a39404ecc07a0785bb","name":"Susana Allen, Rosalba Espadín, Isaac Sosa, Alejandro Allen, Jackeline Cepeda & Rodger Hudson","registered_at":"2026-06-21T17:13:57Z","symbol":"NIM1983584","token_address":"0xda03aa9979b795e1350c2aff5f866e2fced0049c","type":"artist","uuid":"fb8bb270-3b8a-4868-928c-84f794eb8489"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075c936fb544eda4ff6a873389c36cf10b9e75b9dcc342a39404ecc07a0785bb. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb8bb270-3b8a-4868-928c-84f794eb8489.json and https://artists.proofprofile.net/proofs/artist/fb8bb270-3b8a-4868-928c-84f794eb8489.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).