Party Like It's 1899
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followers: 42
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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: Classical Favourites, featuring Works by Bach, Beethoven, Debussy, Chopin, Brahms, Mozart and more
  type: MusicAlbum
  date published: 2023-01-31
album: Piano Music by Frédéric Chopin: 24 Preludes
  type: MusicAlbum
  date published: 2023-02-27
album: Relaxing Classical Music by Chopin
  type: MusicAlbum
  date published: 2023-03-20
album: Classical: Johannes Brahms Sixteen Waltzes
  type: MusicAlbum
  date published: 2023-03-27
album: Classical Bangers by Beethoven, Chopin, Couperin, Hummel, Liszt & Mendelssohn
  type: MusicAlbum
  date published: 2023-04-03
  track: Piano Sonata No. 3 in B Minor, Op. 58: II. Scherzo
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      date published: 2023-04-03
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-19T07:14:39Z
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album: Classical Music by Chopin: Nocturnes
  type: MusicAlbum
  date published: 2023-04-10
album: Children's Classical Music by Schumann: Kinderscenen (Scenes from Childhood)
  type: MusicAlbum
  date published: 2023-04-17
album: Songs Without Words on Piano by Felix Mendelssohn
  type: MusicAlbum
  date published: 2023-04-24
album: Classical: Chopin - Études
  type: MusicAlbum
  date published: 2023-05-01
album: Classical Music Selection feat. Works by Handel, Debussy, Byrd, Faure & More
  type: MusicAlbum
  date published: 2023-05-08
album: Classical Music Collection, feat. Works by Schubert, Chopin, Dvorak & More
  type: MusicAlbum
  date published: 2023-05-15
  track: Waltz in Db Major, Op. 64, No. 1: Minute Waltz
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    by artist: Party Like It's 1899
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      date published: 2023-05-15
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    additional property: OTSVerifyInstructions
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-16T02:28:43Z
    audio: Waltz in Db Major, Op. 64, No. 1: Minute Waltz
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album: Classical Compilation feat. Works by Purcell, Schumann, Satie, Joplin & Liszt

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Time Signature
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Danceability
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Energy
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Liveness
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Valence (Positivity)
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Loudness (dB)
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Key Name
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Mode Name
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Classical Compilation feat. Works by Purcell, Schumann, Satie, Joplin & Liszt
type: MusicAlbum
date published: 2023-05-22