Balys Dvarionas (23 August 1972) was a Soviet and Lithuanian composer, pianist, conductor, and educator. Dvarionas first became known as a composer after World War II. His works are in a romantic vein
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 0x667d7c2f81e414539d94dbd623da105752555ee34597e3c840c66b5f2ae3fbc8. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bab03fb4-0345-4a79-a8fe-c43a3eae5030.json and https://artists.proofprofile.net/proofs/artist/bab03fb4-0345-4a79-a8fe-c43a3eae5030.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dvarionas: Complete Works for Violin & Piano
Balys Dvarionas: Concerto for Horn and Orchestra