{"copyright_id":"0x9bffbf7bfd825b929e3f6333bfcce1fcaecbcbdcc31d4a4028ac0870cbd75768","name":"Jordan Aveiro","registered_at":"2026-06-21T11:29:07Z","symbol":"NIM1911584","token_address":"0xfbb7de4eba6aa563ff1d4e252ae5f5b38cb2fce7","type":"artist","uuid":"ecea979d-d3f7-4c05-be55-889d30ba9fa8"}
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 0x9bffbf7bfd825b929e3f6333bfcce1fcaecbcbdcc31d4a4028ac0870cbd75768. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ecea979d-d3f7-4c05-be55-889d30ba9fa8.json and https://artists.proofprofile.net/proofs/artist/ecea979d-d3f7-4c05-be55-889d30ba9fa8.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.