{"copyright_id":"0xe6cd77ed04aed9c5ed263ee1a0aa838c7a9b68dab99bd0cf3fc940003f86752b","name":"Московский Синодальный хор","registered_at":"2026-06-17T12:19:25Z","symbol":"NIM1393422","token_address":"0x82d94d1f27406e4acd3db8c9a64fcc53b6d174fe","type":"artist","uuid":"85fa9370-d4ef-4ae2-a9f9-7fa141d1de86"}
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 0xe6cd77ed04aed9c5ed263ee1a0aa838c7a9b68dab99bd0cf3fc940003f86752b. 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/85fa9370-d4ef-4ae2-a9f9-7fa141d1de86.json and https://artists.proofprofile.net/proofs/artist/85fa9370-d4ef-4ae2-a9f9-7fa141d1de86.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).