{"copyright_id":"0x92fce218ca3dcbb66ee21ddca2f7b3d00eb851cd2463c44fb97594fbb4089e1f","name":"Gordon Lambatan","registered_at":"2026-06-20T16:49:51Z","symbol":"NIM1658283","token_address":"0x9d679a360e32fdbfafba6b37aaecd6e9c9aac183","type":"artist","uuid":"bb2064af-44d5-48c9-827c-be4d2ab3eb6a"}
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 0x92fce218ca3dcbb66ee21ddca2f7b3d00eb851cd2463c44fb97594fbb4089e1f. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bb2064af-44d5-48c9-827c-be4d2ab3eb6a.json and https://artists.proofprofile.net/proofs/artist/bb2064af-44d5-48c9-827c-be4d2ab3eb6a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).