{"copyright_id":"0xb1345decac91704d482a7251304f26cadbf4dc9f2accca0a2f7a39fbdd41db21","name":"Crankshaft and the Gear Grinders","registered_at":"2026-06-20T17:54:54Z","symbol":"NIM1673704","token_address":"0x5ac2cb1f9a9392d8d662cb8998235e18d4e14de8","type":"artist","uuid":"bda2b291-1268-4bec-b583-85ac7e3bcc6e"}
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 0xb1345decac91704d482a7251304f26cadbf4dc9f2accca0a2f7a39fbdd41db21. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bda2b291-1268-4bec-b583-85ac7e3bcc6e.json and https://artists.proofprofile.net/proofs/artist/bda2b291-1268-4bec-b583-85ac7e3bcc6e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).