{"copyright_id":"0x3c0e09ca5f219bf8e5a00ddabcebc6e3c10b3f4a9a179336debcb883b4ffb2d7","name":"Antonio Medio","registered_at":"2026-06-20T18:00:54Z","symbol":"NIM1672372","token_address":"0x1cb7c87ac7af4a97bf077b7b17fdbc7d6e34ee2f","type":"artist","uuid":"bdaebb50-0ff2-4739-bc32-0f6fd1c79b0a"}
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 0x3c0e09ca5f219bf8e5a00ddabcebc6e3c10b3f4a9a179336debcb883b4ffb2d7. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bdaebb50-0ff2-4739-bc32-0f6fd1c79b0a.json and https://artists.proofprofile.net/proofs/artist/bdaebb50-0ff2-4739-bc32-0f6fd1c79b0a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).