{"copyright_id":"0xffac8e69c23b674946fde5edbbf0c6d5a5cb3044fd690e3d8c7e63474fbf77a3","name":"Jazz Relax Lounge","registered_at":"2026-06-21T08:25:57Z","symbol":"NIM1874655","token_address":"0xd51e9c3add6eea8a55afa47f2a3254e49ef938dd","type":"artist","uuid":"e64e82fa-bcfa-4592-b5f7-c6b60fed900b"}
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 0xffac8e69c23b674946fde5edbbf0c6d5a5cb3044fd690e3d8c7e63474fbf77a3. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e64e82fa-bcfa-4592-b5f7-c6b60fed900b.json and https://artists.proofprofile.net/proofs/artist/e64e82fa-bcfa-4592-b5f7-c6b60fed900b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).