Evgeny Zarafiants (born 1959 in Novosibirsk, Russian SFSR) is a pianist. He studied at the Glinka Conservatory in Gorky. Zarafiants later taught at the Conservatory in Nizhny Novgorod. His recordin
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 0xdeba8ef0176c3b7047273937b05bdad7422211574c803017e60217e6532735be. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e3cb6e4f-d5fb-414b-ba94-0c704bf153c2.json and https://artists.proofprofile.net/proofs/artist/e3cb6e4f-d5fb-414b-ba94-0c704bf153c2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).