{"copyright_id":"0xbe2baa8193de33abaefce977e5acbedcd9c4365e8281b0392d0f30d28bb447a3","name":"Traditional Japanese Music Academy","registered_at":"2026-06-16T01:48:35Z","symbol":"NIM0899310","token_address":"0x26e7ff6e5dc8d703adaf2ec7ea567a62cf5adb67","type":"artist","uuid":"22617ded-22ec-4219-93fe-529e8e286363"}
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 0xbe2baa8193de33abaefce977e5acbedcd9c4365e8281b0392d0f30d28bb447a3. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22617ded-22ec-4219-93fe-529e8e286363.json and https://artists.proofprofile.net/proofs/artist/22617ded-22ec-4219-93fe-529e8e286363.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Over Three Hours Traditional Japanese Music