{"copyright_id":"0xf02f96b07b3f44ce38bca4121fadbbaeafd66cba181dee5cdf5895aa13fe090f","name":"Robert Valera","registered_at":"2026-06-20T05:44:09Z","symbol":"NIM1533379","token_address":"0xcb48ba4e5517cec4bb10fa6eafd950b92b0a615e","type":"artist","uuid":"a1eaa3ab-6891-46be-be2d-e1da65ab10c9"}
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 0xf02f96b07b3f44ce38bca4121fadbbaeafd66cba181dee5cdf5895aa13fe090f. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a1eaa3ab-6891-46be-be2d-e1da65ab10c9.json and https://artists.proofprofile.net/proofs/artist/a1eaa3ab-6891-46be-be2d-e1da65ab10c9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).