{"copyright_id":"0x2c73956ea387c677a9fc2cd72eae32b0ff7fdd8f79c995fdc8deddc7af2cfb3e","name":"Super Cagette","registered_at":"2026-06-21T14:38:24Z","symbol":"NIM1948401","token_address":"0xd3bd1cbc2df4c68acb1af0ade643b45e0ae8e21f","type":"artist","uuid":"f44f6cc3-5e4a-4a53-899e-8853446afd33"}
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 0x2c73956ea387c677a9fc2cd72eae32b0ff7fdd8f79c995fdc8deddc7af2cfb3e. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f44f6cc3-5e4a-4a53-899e-8853446afd33.json and https://artists.proofprofile.net/proofs/artist/f44f6cc3-5e4a-4a53-899e-8853446afd33.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).