Orkest De Volharding
type: MusicGroup
genre: minimalism
description: Orkest de Volharding (perseverance orchestra) is a Dutch music ensemble, founded in 1972 by Louis Andriessen and saxophonist Willem Breuker, named after the eponymous Andriessen work. The line up for
popularity: 8
followers: 131
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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
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album: The Minimalists Works By Reich, Riley, Andriessen And Gann
  type: MusicAlbum
  date published: 2009-10-27
album: The Minimalists
  type: MusicAlbum
  date published: 2009-11-10
album: The Minimalists
  type: MusicAlbum
  date published: 2009-11-10
album: Western Darlings
  type: MusicAlbum
  date published: 2021-05-19
album: Shoulder to Shoulder
  type: MusicAlbum
  date published: 2024-09-13
album: Hex
  type: MusicAlbum
  date published: 2024-09-13
track: M is for Man, Music, Mozart: The Alphabet Song
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  by artist: Louis Andriessen
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  by artist: Orkest De Volharding
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    date published: 1994-08-05
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    date published: 2026-07-31T17:29:52Z
  audio: M is for Man, Music, Mozart: The Alphabet Song
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track: M is for Man, Music, Mozart: Instrumental I
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  by artist: Louis Andriessen
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    date published: 1994-08-05
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
  audio: M is for Man, Music, Mozart: Instrumental I
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track: M is for Man, Music, Mozart: Instrumental II
track: M is for Man, Music, Mozart: The Eisenstein Song

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M is for Man, Music, Mozart: Instrumental II
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by artist: Orkest De Volharding
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-08-01T00:40:43Z
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M is for Man, Music, Mozart: The Eisenstein Song
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by artist: Orkest De Volharding
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  date published: 1994-08-05
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: M is for Man, Music, Mozart: The Eisenstein Song
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