{"copyright_id":"0xdcf7bef4857bd2498ab1c7233fb2f318cebe2fd516d5b46d0c2bc31efc1f4be8","name":"Сергей Серафимов","registered_at":"2026-06-21T17:39:35Z","symbol":"NIM1990206","token_address":"0x3560e2e4f5add251e2bd202ceeb936fa751a0ab9","type":"artist","uuid":"fc7e7655-b1ce-4a1f-be05-c77035baa8ef"}
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 0xdcf7bef4857bd2498ab1c7233fb2f318cebe2fd516d5b46d0c2bc31efc1f4be8. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc7e7655-b1ce-4a1f-be05-c77035baa8ef.json and https://artists.proofprofile.net/proofs/artist/fc7e7655-b1ce-4a1f-be05-c77035baa8ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).