{"copyright_id":"0x1ca259d0a4e9f3cdda3d56820f797ca74a14d54adcbc1d5441240b705f2fddeb","name":"Kabita Pradhan","registered_at":"2026-06-20T19:01:14Z","symbol":"NIM1686080","token_address":"0xd2a2b969f82f1b976f283e72c2fac30a0ee5ee9f","type":"artist","uuid":"bfde3b38-4abe-4f50-8ea2-cf8fadad6ab7"}
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 0x1ca259d0a4e9f3cdda3d56820f797ca74a14d54adcbc1d5441240b705f2fddeb. 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/bfde3b38-4abe-4f50-8ea2-cf8fadad6ab7.json and https://artists.proofprofile.net/proofs/artist/bfde3b38-4abe-4f50-8ea2-cf8fadad6ab7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).