{"copyright_id":"0xcdf4dafecbedc839deac83a6fddef6fdc3eefbfbab9b6aa8f99e277443d8a1c0","name":"Luciano Motta","registered_at":"2026-06-17T17:22:46Z","symbol":"NIM1465753","token_address":"0xaff3e8c33d401616c0b891b28228a9220e2c2897","type":"artist","uuid":"9435bfad-b9e6-460b-b03b-e3c5cf12a5a1"}
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 0xcdf4dafecbedc839deac83a6fddef6fdc3eefbfbab9b6aa8f99e277443d8a1c0. 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/9435bfad-b9e6-460b-b03b-e3c5cf12a5a1.json and https://artists.proofprofile.net/proofs/artist/9435bfad-b9e6-460b-b03b-e3c5cf12a5a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).