{"copyright_id":"0xede2561c8e9e1b56081618acd08900d586eda0edbdffae69bce26bfd92001c37","name":"Gabi Rüther","registered_at":"2026-06-21T14:56:05Z","symbol":"NIM1953155","token_address":"0x267dd73aac2bffb508a2451cebf1babadb70deef","type":"artist","uuid":"f57abda0-d35f-4dfe-b1da-80d6c8d1bc25"}
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 0xede2561c8e9e1b56081618acd08900d586eda0edbdffae69bce26bfd92001c37. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f57abda0-d35f-4dfe-b1da-80d6c8d1bc25.json and https://artists.proofprofile.net/proofs/artist/f57abda0-d35f-4dfe-b1da-80d6c8d1bc25.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).