{"copyright_id":"0xfdc8f3f80e74fbe28b08f70f8449eee886317aa3b0402731aeade33d0c62a3fe","name":"Los Periquines de Don Ramon Torres","registered_at":"2026-06-20T06:17:42Z","symbol":"NIM1541225","token_address":"0xd1bd71aa9458724bc96a7fb36e4e7fcc29fa27bc","type":"artist","uuid":"a37ef725-95aa-4a5e-944b-76dbb16dfe15"}
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 0xfdc8f3f80e74fbe28b08f70f8449eee886317aa3b0402731aeade33d0c62a3fe. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a37ef725-95aa-4a5e-944b-76dbb16dfe15.json and https://artists.proofprofile.net/proofs/artist/a37ef725-95aa-4a5e-944b-76dbb16dfe15.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).