Charles-Louis Hanon
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description: thumb|right|220px|Charles-Louis Hanon Charles-Louis Hanon (2 July 181919 March 1900) was a French piano pedagogue and composer. He is best known for his work The Virtuoso Pianist in 60 Exercises, whic
popularity: 2
followers: 44
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additional property: OTSVerifyInstructions
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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 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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  date published: 2026-06-17T08:10:43Z
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album: 全訳ハノンピアノ教本 [全音楽譜準拠] －監修：神野 明－
  type: MusicAlbum
  date published: 2007-11-21
album: El Pianista Virtuoso en Sesenta Ejercicios (Versión Completa)
  type: MusicAlbum
  date published: 2022-05-27
album: Hanon, il Pianista Virtuoso
  type: MusicAlbum
  date published: 2022-11-16
album: Hanon Exercise No. 60 (The Tremolo): from Hanon The Virtuoso Pianist
  type: MusicAlbum
  date published: 2023-01-08