{"copyright_id":"0xbe7ec4147ff4bd3da6c82bd5417e884d61ef8c13bb044d9e435ac777d6b0c900","name":"Horňácká cimbálová muzika Kubíci","registered_at":"2026-06-20T11:12:01Z","symbol":"NIM1599487","token_address":"0xdcbc2ed29d6013ea67a4eb5082dde62631f52cd5","type":"artist","uuid":"af7a14b5-af11-446b-bf1f-0a362cf69d63"}
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 0xbe7ec4147ff4bd3da6c82bd5417e884d61ef8c13bb044d9e435ac777d6b0c900. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/af7a14b5-af11-446b-bf1f-0a362cf69d63.json and https://artists.proofprofile.net/proofs/artist/af7a14b5-af11-446b-bf1f-0a362cf69d63.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).