{"copyright_id":"0x6ffc70ec06f6f54894dd1d724df895592ed3090183aeebfc62ef9f3a8a3d5ca3","name":"Regengeräusche Orchester von TraxLab","registered_at":"2026-06-12T09:56:37Z","symbol":"NIM0262709","token_address":"0x1528cad8396155d417fb3f8e892b212a533d8f45","type":"artist","uuid":"cba77ac0-bcfa-4772-9cd5-c49547ace5ff"}
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 0x6ffc70ec06f6f54894dd1d724df895592ed3090183aeebfc62ef9f3a8a3d5ca3. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cba77ac0-bcfa-4772-9cd5-c49547ace5ff.json and https://artists.proofprofile.net/proofs/artist/cba77ac0-bcfa-4772-9cd5-c49547ace5ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).