{"copyright_id":"0x737d735d0114c33becc150b4fd892b8a9d72ebbafef55cac1bea53e3b8b9ba36","name":"Killua the Pilgrim","registered_at":"2026-06-20T04:55:18Z","symbol":"NIM1517538","token_address":"0xb6f672e1c8f75ea2f0fb0e21bc53ae8f044adbad","type":"artist","uuid":"9dc4daa2-bfd3-4b45-adad-1fca7f5ac8cf"}
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 0x737d735d0114c33becc150b4fd892b8a9d72ebbafef55cac1bea53e3b8b9ba36. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9dc4daa2-bfd3-4b45-adad-1fca7f5ac8cf.json and https://artists.proofprofile.net/proofs/artist/9dc4daa2-bfd3-4b45-adad-1fca7f5ac8cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).