{"copyright_id":"0x21efd663dbfa7eb55eb5f70c5f1c56bacaeb9b0ebf34d4c95cea98df22c82fe0","name":"Augustina Kant","registered_at":"2026-06-16T22:55:03Z","symbol":"NIM1201565","token_address":"0xaa9696bedb7176d06a0ff9caaec3a3cfd5b9e815","type":"artist","uuid":"5f5dfada-07c9-4e39-a351-8ff9ff6ebda0"}
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 0x21efd663dbfa7eb55eb5f70c5f1c56bacaeb9b0ebf34d4c95cea98df22c82fe0. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5f5dfada-07c9-4e39-a351-8ff9ff6ebda0.json and https://artists.proofprofile.net/proofs/artist/5f5dfada-07c9-4e39-a351-8ff9ff6ebda0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).