{"copyright_id":"0x43e9677eb5ed5ecac9a5b54b2d5c81e53fddf6ed2b0e50bd02fa423e73e9eaa1","name":"Anthony Burke / Moment of Truth","registered_at":"2026-06-20T08:28:17Z","symbol":"NIM1566426","token_address":"0xbbe44f91af35b54ca457d1da7c0e89fd3f1e0213","type":"artist","uuid":"a8226b4b-910f-4f3f-941f-ddd26e57e5ef"}
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 0x43e9677eb5ed5ecac9a5b54b2d5c81e53fddf6ed2b0e50bd02fa423e73e9eaa1. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8226b4b-910f-4f3f-941f-ddd26e57e5ef.json and https://artists.proofprofile.net/proofs/artist/a8226b4b-910f-4f3f-941f-ddd26e57e5ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).