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 0x7de887a29a5601082e8b575199c5fe09fbc330c000d4c4af4e68ac5bc1ca6475. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/129fe125-3c75-4eec-a753-3e578704ba9a.json and https://artists.proofprofile.net/proofs/artist/129fe125-3c75-4eec-a753-3e578704ba9a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Divya Desa Vaibhavam-Singavezh Kundram (Ahobilam)
Divya Desa Vaibhavam-Thirukkadigai (Sholingar)