{"copyright_id":"0xbb3de7ec431e2e8301dc93c7cbebedabd85e043cdece3bc4cb9317a674761bee","name":"Björn Gebauer","registered_at":"2026-06-14T21:58:05Z","symbol":"NIM0588867","token_address":"0xd4cc7dfeed8fc9a15b6bd265b3594089dbc30e7a","type":"artist","uuid":"a6e1c13e-ad7f-4fba-b898-6711d73c1a2a"}
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 0xbb3de7ec431e2e8301dc93c7cbebedabd85e043cdece3bc4cb9317a674761bee. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a6e1c13e-ad7f-4fba-b898-6711d73c1a2a.json and https://artists.proofprofile.net/proofs/artist/a6e1c13e-ad7f-4fba-b898-6711d73c1a2a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.