{"copyright_id":"0x6e1ce1e3c30d9c441af828ff2df1a958cce694a26879daf31d938952b25bfa70","name":"Natalia Benthal","registered_at":"2026-06-21T11:47:20Z","symbol":"NIM1915242","token_address":"0x9dc226bbcffcd75cecc1cb0083c77edc82cf2aca","type":"artist","uuid":"ee23bb6b-1aff-4fd3-bba0-91dbce0dd541"}
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 0x6e1ce1e3c30d9c441af828ff2df1a958cce694a26879daf31d938952b25bfa70. 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/ee23bb6b-1aff-4fd3-bba0-91dbce0dd541.json and https://artists.proofprofile.net/proofs/artist/ee23bb6b-1aff-4fd3-bba0-91dbce0dd541.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.