{"copyright_id":"0xacbfb8e62ecfdba4ef60b0a3709b1d69d5a8ec345f07f6cf69ac142e3d6933e3","name":"Sanath Gamage","registered_at":"2026-06-17T19:33:23Z","symbol":"NIM1496928","token_address":"0x3abf0f4ef18c936ae1fb57ecacb24ff72476d3f9","type":"artist","uuid":"99b3ffc6-2edb-4056-b62f-b1fcfc0eaf57"}
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 0xacbfb8e62ecfdba4ef60b0a3709b1d69d5a8ec345f07f6cf69ac142e3d6933e3. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99b3ffc6-2edb-4056-b62f-b1fcfc0eaf57.json and https://artists.proofprofile.net/proofs/artist/99b3ffc6-2edb-4056-b62f-b1fcfc0eaf57.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).