{"copyright_id":"0x3ee96fa31e3d2fc7b7aa1de06e55d9b0ec0cd6316ae96facedceac431cae0a6a","name":"NEW MARSADA ACCOUSTIC GROUP","registered_at":"2026-06-17T18:50:01Z","symbol":"NIM1486569","token_address":"0x8d5f77b0ee690f3be144c3d8f877d2939764d990","type":"artist","uuid":"979269af-317a-4b9d-9be4-3b78fc7e80fc"}
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 0x3ee96fa31e3d2fc7b7aa1de06e55d9b0ec0cd6316ae96facedceac431cae0a6a. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/979269af-317a-4b9d-9be4-3b78fc7e80fc.json and https://artists.proofprofile.net/proofs/artist/979269af-317a-4b9d-9be4-3b78fc7e80fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).