Airat Rafailovich Ichmouratov (, Tatar Cyrillic: Айрат Рафаил улы Ишмурат, born 28 June 1973) is a Volga Tatar born Russian and Canadian composer, conductor and klezmer clarinetist. He is a founding
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 0xdf136b322bd9ab4dc97d871bc84fbc55a386f286594f656860a27eb84fb24359. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6127628f-49a5-4f1a-8dc0-f93ed0eed21d.json and https://artists.proofprofile.net/proofs/artist/6127628f-49a5-4f1a-8dc0-f93ed0eed21d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ichmouratov: Symphony "On the Ruins of an Ancient Fort", Maslenitsa Overture & Youth Overture
Ichmouratov: Piano Concerto, Viola Concerto No. 1
Ichmouratov: The Ninth Wave, Viola Concerto No. 2, Cello Concerto No. 1