{"copyright_id":"0xb36e16acfa89a5f4bccbb10a0c17fea38cf7aac39b2043f1d9fed64ec310a123","name":"Tyrone Block","registered_at":"2026-06-20T14:12:26Z","symbol":"NIM1631102","token_address":"0x4bed75034d2eef2def57fa8fd2ac6a6ed2e8f2e3","type":"artist","uuid":"b559924a-d8d3-44cc-afe0-efe0970cf5dc"}
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 0xb36e16acfa89a5f4bccbb10a0c17fea38cf7aac39b2043f1d9fed64ec310a123. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b559924a-d8d3-44cc-afe0-efe0970cf5dc.json and https://artists.proofprofile.net/proofs/artist/b559924a-d8d3-44cc-afe0-efe0970cf5dc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).