{"copyright_id":"0x98113d52c96a7cfd378aaaddc51224f95bfb928646d5da31da2d2f4ceb0d6cea","name":"Pepe Lopez / Los Trinitarios","registered_at":"2026-06-17T14:17:55Z","symbol":"NIM1421618","token_address":"0xdc5fcdc5803e8cb2593cd0ac9db338f5c2c1174c","type":"artist","uuid":"8a5b4fbe-53d3-48e4-9e49-e3d52fc2a3d3"}
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 0x98113d52c96a7cfd378aaaddc51224f95bfb928646d5da31da2d2f4ceb0d6cea. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a5b4fbe-53d3-48e4-9e49-e3d52fc2a3d3.json and https://artists.proofprofile.net/proofs/artist/8a5b4fbe-53d3-48e4-9e49-e3d52fc2a3d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).