Hélène Boschi
type: MusicGroup
genre: chamber music
description: Hélène Boschi ( ; 11 August 19179 July 1990) was a Franco-Swiss pianist, born in Lausanne. She studied with Yvonne Lefébure and Alfred Cortot at the Ecole normale de musique in Paris. Throughout her l
popularity: 3
followers: 92
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  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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  date published: 2026-06-17T08:11:48Z
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album: Bizet: Variations chromatiques - Emmanuel: Sonatine "Bourguignonne" (Mono Version)
  type: MusicAlbum
  date published: 1900-01-01
album: Trois mélodies (Mono Version)
  type: MusicAlbum
  date published: 1954-01-01
album: Mozart: Concerto pour piano No. 22, K. 482 - Haydn: Symphonie No. 27 (Mono Version)
  type: MusicAlbum
  date published: 1959-01-01
album: Hélène Boschi Piano
  type: MusicAlbum
  date published: 2000-01-01
album: Hélène Boschi: Pieces de clavecin
  type: MusicAlbum
  date published: 2013-10-30
album: Mozart: Piano Concerto in E-Flat Major - Haydn: Symphony in G Major
  type: MusicAlbum
  date published: 2017-09-29
album: Portrait
  type: MusicAlbum
  date published: 2021-03-19
album: Portrait
  type: MusicAlbum
  date published: 2021-03-19
album: Pieces de clavecin
  type: MusicAlbum
  date published: 2024-10-25