Balys Dvarionas
type: MusicGroup
genre: baltic-classical
description: 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
popularity: 7
followers: 291
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/bab03fb4-0345-4a79-a8fe-c43a3eae5030.ots
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
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  description: 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).
  date published: 2026-06-21T07:29:20Z
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album: Dvarionas: Complete Works for Violin & Piano
  type: MusicAlbum
  date published: 2017-05-12
album: Balys Dvarionas: Concerto for Horn and Orchestra
  type: MusicAlbum
  date published: 2019-12-13