Jaspreet Jasz, Dhanunjay, Anudeep, Hymath
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff7d7fe3b7f00fb91ee805d3f5d8746f3f157fe908878f878b141cbf4bb3708. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1bc1d9cf-6a68-42ad-b2af-87aa951993d6.json and https://artists.proofprofile.net/proofs/artist/1bc1d9cf-6a68-42ad-b2af-87aa951993d6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).