{"copyright_id":"0x25f961087fa4580f02d4f7bc99fd25eb09b7efbda918902fcbbae7a8f32da10e","name":"Yukine Kuroki","registered_at":"2026-06-16T09:38:53Z","symbol":"NIM1011608","token_address":"0xb8e55bdc1efedec22a55e1d6b7a7cd84c9436fec","type":"artist","uuid":"39b5fb7b-ffbe-4724-bfcf-e1ae4df1a8f2"}
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f961087fa4580f02d4f7bc99fd25eb09b7efbda918902fcbbae7a8f32da10e. Chain 2 (Bitcoin): anchored in block 954028 (2026-06-17T01:08:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39b5fb7b-ffbe-4724-bfcf-e1ae4df1a8f2.json and https://artists.proofprofile.net/proofs/artist/39b5fb7b-ffbe-4724-bfcf-e1ae4df1a8f2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).