{"copyright_id":"0xc8d73af9c1ff2cd07f1fbacbe2a9920f19a82c575d8be8aa1b96dec9cce37741","name":"Ronnie Cook and The Gaylads","registered_at":"2026-06-20T11:55:09Z","symbol":"NIM1605812","token_address":"0x91b2237b48aa734defdfafd8e395dbb73300e6aa","type":"artist","uuid":"afbf9753-5565-4a49-8345-f00b7be7cbd5"}
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 0xc8d73af9c1ff2cd07f1fbacbe2a9920f19a82c575d8be8aa1b96dec9cce37741. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/afbf9753-5565-4a49-8345-f00b7be7cbd5.json and https://artists.proofprofile.net/proofs/artist/afbf9753-5565-4a49-8345-f00b7be7cbd5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).