{"copyright_id":"0xdebfb65d32bddbbdbee308189f6e324ceb8ea4e7a3bc942db353e3f967152aa2","name":"Sebastian Ricardo","registered_at":"2026-06-20T23:05:31Z","symbol":"NIM1742442","token_address":"0xaf405a31202918ba3c02491e7b0b5ace7ca8bad0","type":"artist","uuid":"ca8bdc45-ad66-4f38-af6e-2f6ded2f711b"}
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 0xdebfb65d32bddbbdbee308189f6e324ceb8ea4e7a3bc942db353e3f967152aa2. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca8bdc45-ad66-4f38-af6e-2f6ded2f711b.json and https://artists.proofprofile.net/proofs/artist/ca8bdc45-ad66-4f38-af6e-2f6ded2f711b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).