Kirill () a Russian male given name, deriving from the Greek name Κύριλλος (Kyrillos), which in turn derives from Greek κύριος (kyrios) "lord". There are many variant forms of the name: Cyril, Cyrill
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 0xbaa90aa997ae5325dfa43fdaf407d3aa82138e209a947e539ce87f6851e6c91d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bede0fde-616c-45db-94d9-7407efa3ca14.json and https://artists.proofprofile.net/proofs/artist/bede0fde-616c-45db-94d9-7407efa3ca14.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).