Alexander Sparinsky
type: MusicGroup
description: Alexander Sparinsky (, ; is a Ukrainian musicologist, composer and producer. A member of Ukrainian Association of Cinematographers. Biography Sparinsky studied at the Kyiv Pedagogical Institute (no
popularity: 2
followers: 142
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/9843a914-00af-4950-84a7-2e2bfcca3fa6.ots
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9843a914-00af-4950-84a7-2e2bfcca3fa6
additional property: OTSTimestamp
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  value: 2026-06-19T03:51:26Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0359ca8e14f62fad9cbcb110a906bffa433ae4639d50956e18b2e1484ff77ce1. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9843a914-00af-4950-84a7-2e2bfcca3fa6.json and https://artists.proofprofile.net/proofs/artist/9843a914-00af-4950-84a7-2e2bfcca3fa6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
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album: Russian Songs
  type: MusicAlbum
  date published: 2014-01-12
album: In Children’s Land
  type: MusicAlbum
  date published: 2020-07-07
album: EARLY YEARS
  type: MusicAlbum
  date published: 2020-08-20
album: Evolution
  type: MusicAlbum
  date published: 2020-10-01
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  date published: 2020-10-07
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  type: MusicAlbum
  date published: 2020-11-03
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  date published: 2020-11-09
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  type: MusicAlbum
  date published: 2020-12-02
album: Ukraine - the Best (Thematic Ukrainian Edition)
  type: MusicAlbum
  date published: 2020-12-16
album: Early Years (Instrumental Works Collection)
  type: MusicAlbum
  date published: 2020-12-17
album: Born in Ussr
  type: MusicAlbum
  date published: 2021-05-12
album: Russian Songs (Songs of Various Years in Russian)
  type: MusicAlbum
  date published: 2021-11-22
album: In Children's Land
  type: MusicAlbum
  date published: 2021-11-27