{"copyright_id":"0x63174df43927b6f9cdce6fcea06093339c1267cd2d69fcd906bbf9e4dba13a7a","name":"Orchestre Régional de Cannes PACA","registered_at":"2026-06-17T16:37:25Z","symbol":"NIM1454925","token_address":"0xfce23a27824f1b67de6547d7104af135dbaa7e6b","type":"artist","uuid":"91fb670a-2382-485a-9f6b-2fdf007bddaa"}
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 0x63174df43927b6f9cdce6fcea06093339c1267cd2d69fcd906bbf9e4dba13a7a. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/91fb670a-2382-485a-9f6b-2fdf007bddaa.json and https://artists.proofprofile.net/proofs/artist/91fb670a-2382-485a-9f6b-2fdf007bddaa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).