{"copyright_id":"0xb51ef5ec753d3e04d38386ca3df12c55988db0021e0b09bd3b2b644d9bccfea7","name":"Guthrie Ramsey","registered_at":"2026-06-20T18:59:10Z","symbol":"NIM1685261","token_address":"0xb3dd79aba55c33ea5a92882ac1ed2e0aef7ea0a9","type":"artist","uuid":"c02ecd7f-31e1-4be6-b8be-eeb570e6e1bd"}
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 0xb51ef5ec753d3e04d38386ca3df12c55988db0021e0b09bd3b2b644d9bccfea7. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c02ecd7f-31e1-4be6-b8be-eeb570e6e1bd.json and https://artists.proofprofile.net/proofs/artist/c02ecd7f-31e1-4be6-b8be-eeb570e6e1bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Race Music 21: etudes/grooves/interludes