{"copyright_id":"0xfdbf7bbab2daada3f9cf7d6984ca462ea13cdee42b33ecebb50cfb3baf79ae70","name":"Romain Poncet","registered_at":"2026-06-15T18:02:53Z","symbol":"NIM0788180","token_address":"0x2bdbfc0ce0a3ae1526a0c6919208da416ae1c89a","type":"artist","uuid":"0cde6445-541e-4ca1-ab43-8aa43af9861f"}
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 0xfdbf7bbab2daada3f9cf7d6984ca462ea13cdee42b33ecebb50cfb3baf79ae70. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0cde6445-541e-4ca1-ab43-8aa43af9861f.json and https://artists.proofprofile.net/proofs/artist/0cde6445-541e-4ca1-ab43-8aa43af9861f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).