{"copyright_id":"0x1a33d1f380c6ab8569cdaff18a73cbb4c86ef2f48dbb4a2b5d673bc75e3cc2ce","name":"Lee Hanbum","registered_at":"2026-06-16T12:48:47Z","symbol":"NIM1056916","token_address":"0xaabc6044a30feeeb20dada7dc6fd7aa59aa92b7e","type":"artist","uuid":"41ed7abc-cacf-4b42-a848-df6db6dc0cc8"}
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 0x1a33d1f380c6ab8569cdaff18a73cbb4c86ef2f48dbb4a2b5d673bc75e3cc2ce. Chain 2 (Bitcoin): anchored in block 954048 (2026-06-17T05:00:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41ed7abc-cacf-4b42-a848-df6db6dc0cc8.json and https://artists.proofprofile.net/proofs/artist/41ed7abc-cacf-4b42-a848-df6db6dc0cc8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).