{"copyright_id":"0x3ab945bf30e62df2e523ea17e0f19fc9a47d1d2d0f7dbcbfa9efd6bfebac2f7a","name":"Dayvimar Hernández","registered_at":"2026-06-21T16:14:59Z","symbol":"NIM1966677","token_address":"0x1e6da7f01aa4a05d173244bb5fdd8ed9ff021a75","type":"artist","uuid":"f848a8cd-3dc8-4eda-b9c2-f5e9b76924af"}
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 0x3ab945bf30e62df2e523ea17e0f19fc9a47d1d2d0f7dbcbfa9efd6bfebac2f7a. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f848a8cd-3dc8-4eda-b9c2-f5e9b76924af.json and https://artists.proofprofile.net/proofs/artist/f848a8cd-3dc8-4eda-b9c2-f5e9b76924af.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).