thumb|An image from a Falname made in India around 1610–1630, depicts Jesus fighting the Dajjal (right). Behind, the Mahdi with a veiled face. The Mahdi () is a messianic figure in Islamic belief. He
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 0xcba7d250fa813d9409ceb91de18d7d8a2924577f193f14bbde98ae296533dca2. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77d4481a-4d6c-405c-ab65-28c21f19b8df.json and https://artists.proofprofile.net/proofs/artist/77d4481a-4d6c-405c-ab65-28c21f19b8df.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).