{"copyright_id":"0x5d2cd68acdadc771cbe1302bbb4aa0b4fc34a52f20e1eb66f53ecf5445a6fb5c","name":"Joanah Flor","registered_at":"2026-06-21T09:25:59Z","symbol":"NIM1888304","token_address":"0x9a642d9cade728ce8402fe4b7cb303f407dacf2b","type":"artist","uuid":"e881ded1-ba37-4b68-a60b-4fdf3edf1bee"}
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 0x5d2cd68acdadc771cbe1302bbb4aa0b4fc34a52f20e1eb66f53ecf5445a6fb5c. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e881ded1-ba37-4b68-a60b-4fdf3edf1bee.json and https://artists.proofprofile.net/proofs/artist/e881ded1-ba37-4b68-a60b-4fdf3edf1bee.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.