{"copyright_id":"0x1aeee3dfcdd6c6f1a7ca032f14200ae294b1ca112f99d12ceae345a88bd73e11","name":"Hermanos Berbel","registered_at":"2026-06-17T15:12:00Z","symbol":"NIM1434527","token_address":"0xe3541085455cb65feffbaa6feab2b4b73de3d58c","type":"artist","uuid":"8de4ee0f-bbb5-43dd-bda4-cc8162f49ee7"}
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 0x1aeee3dfcdd6c6f1a7ca032f14200ae294b1ca112f99d12ceae345a88bd73e11. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8de4ee0f-bbb5-43dd-bda4-cc8162f49ee7.json and https://artists.proofprofile.net/proofs/artist/8de4ee0f-bbb5-43dd-bda4-cc8162f49ee7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).