{"copyright_id":"0x2b84d7f8a3aae39dba6114c8ffab3bfe9a2e11fd31af8c26ff9f3456c9265e2f","name":"Sarita Chuadhary","registered_at":"2026-06-20T19:51:43Z","symbol":"NIM1698087","token_address":"0xb1ef0fb8578cab5f1193f59b04bcacbbe1da6330","type":"artist","uuid":"c2e9e46c-cc7f-4b92-be99-6f76e1440dda"}
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 0x2b84d7f8a3aae39dba6114c8ffab3bfe9a2e11fd31af8c26ff9f3456c9265e2f. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2e9e46c-cc7f-4b92-be99-6f76e1440dda.json and https://artists.proofprofile.net/proofs/artist/c2e9e46c-cc7f-4b92-be99-6f76e1440dda.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).