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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-07T14:50:41Z
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  track: Orchestral Suite No. 2 in B Minor, BWV 1067: Minuet and Badinerie
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  track: Waltz in B Minor, Op. 69, No. 2
  track: String Quintet in E Major, Op. 11, No. 5, G. 275: III. Minuetto con un poco di moto - Trio
  track: Sonata for Violoncello and Basso continuo in E Major: III. Siciliana
  track: Bomba de la noche
  track: Solomon, HWV 37: The Arrival of the Queen of Sheba
  track: Sobre las Olas
  track: Piano Concerto No. 21 in C Major, K. 467: II. Andante (Arranged for Violin & Orchestra)
  track: Teseo, HWV 9: M'adora l'idol mio
  track: Serenade No. 13 in G major, K. 525 "Eine kleine Nachtmusik": Rondo. Allegro
album: Beethoven: Septet, Op. 20 & Sextet, Op. 81b
album: Weber : Clarinet Quintet / Devienne : Fagotto Quartet / Mozart : Fagotto Sonata
album: Mozart & Brahms : Clarinet Quintets
album: Schubert : Octet, D.803 Op.166
album: Classical Works
album: Classic Mix
album: Weber: Clarinet & Bassoon Concertos
album: The Ultimate Most Relaxing Beethoven In the Universe
album: Stress Relief: Healing Classics to Restore the Soul
album: Classic Mix, Vol. 4
album: Morning Lift
album: Classic Blues, Vol. 3

Serenade No. 13 in G major, K. 525 "Eine kleine Nachtmusik": Rondo. Allegro
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by artist: Wolfgang Amadeus Mozart
by artist: Wiener Kammerensemble
in album: Feel Good Klassik 2
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  date published: 2013-07-29
popularity: 2
genre: classical
genre: classical-era
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T09:57:33Z
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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

Instrumentalness
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Waltz in B Minor, Op. 69, No. 2
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Waltz in B Minor, Op. 69, No. 2
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String Quintet in E Major, Op. 11, No. 5, G. 275: III. Minuetto con un poco di moto - Trio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: String Quintet in E Major, Op. 11, No. 5, G. 275: III. Minuetto con un poco di moto - Trio
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Sonata for Violoncello and Basso continuo in E Major: III. Siciliana
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Bomba de la noche
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Solomon, HWV 37: The Arrival of the Queen of Sheba
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Sobre las Olas
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Piano Concerto No. 21 in C Major, K. 467: II. Andante (Arranged for Violin & Orchestra)
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Teseo, HWV 9: M'adora l'idol mio
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Beethoven: Septet, Op. 20 & Sextet, Op. 81b
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Weber : Clarinet Quintet / Devienne : Fagotto Quartet / Mozart : Fagotto Sonata
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Mozart & Brahms : Clarinet Quintets
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Schubert : Octet, D.803 Op.166
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Classical Works
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Classic Mix
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Weber: Clarinet & Bassoon Concertos
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The Ultimate Most Relaxing Beethoven In the Universe
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Stress Relief: Healing Classics to Restore the Soul
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Classic Mix, Vol. 4
type: MusicAlbum
date published: 2009-01-01

Morning Lift
type: MusicAlbum
date published: 2009-01-01

Classic Blues, Vol. 3
type: MusicAlbum
date published: 2011-02-01