{"copyright_id":"0xc09d266fe3ed9f6c2f1a5dec3eea7aaae5a1cdd6ef5b128615f336b1dfc550bb","name":"NINA JESSICA PADOVAN","registered_at":"2026-06-20T05:50:35Z","symbol":"NIM1531752","token_address":"0x98ace146f2c29e12faaac6fd39fc5666dc7a7274","type":"artist","uuid":"a16b1aad-3ef8-4d00-b845-1faf7f80518e"}
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 0xc09d266fe3ed9f6c2f1a5dec3eea7aaae5a1cdd6ef5b128615f336b1dfc550bb. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a16b1aad-3ef8-4d00-b845-1faf7f80518e.json and https://artists.proofprofile.net/proofs/artist/a16b1aad-3ef8-4d00-b845-1faf7f80518e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).