Orpheus Chamber Orchestra
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genre: chamber music
genre: classical
description: The Orpheus Chamber Orchestra (founded in 1972) is a classical music chamber orchestra based in New York City. They have won several Grammy Awards,Orpheus Chamber Orchestra website and are known for t
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    by artist: Wolfgang Amadeus Mozart
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  track: Bassoon Concerto in B Flat Major, K. 191: I. Allegro - Cadenza: Frank Morelli
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  track: Oboe Concerto in C Major, K. 314: I. Allegro aperto - Cadenza: Randall Wolfgang
  track: Serenade in G Major, K. 525 "Eine kleine Nachtmusik": I. Allegro
  track: Divertimento No. 11 in D Major, K. 251 "Nannerl-Septett": I. Molto allegro
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  track: Serenade in G Major, K. 525 "Eine kleine Nachtmusik": III. Menuetto (Allegretto)
  track: Divertimento No. 11 in D Major, K. 251 "Nannerl-Septett": III. Andantino
  track: Clarinet Concerto in A Major, K. 622: I. Allegro - Cadenza: Charles Neidich
  track: Horn Concerto No. 2 in E Flat Major, K. 417: I. Allegro maestoso
  track: Flute Concerto No. 1 in G Major, K. 313: I. Allegro maestoso - Cadenza and Lead-in: Susan Palma
  track: Serenade in G Major, K. 525 "Eine kleine Nachtmusik": IV. Rondo (Allegro)
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  track: Horn Concerto No. 2 in E Flat Major, K. 417: II. Adagio
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  track: Serenata notturna in D Major, K. 239: I. Marcia (Maestoso)
  track: Divertimento No. 11 in D Major, K. 251 "Nannerl-Septett": V. Rondeau. Allegro assai
  track: Clarinet Concerto in A Major, K. 622: III. Rondo (Allegro)
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  track: Flute Concerto No. 1 in G Major, K. 313: III. Rondo. Tempo di Menuetto - Cadenza and Lead-in: Susan Palma
  track: Divertimento No. 11 in D Major, K. 251 "Nannerl-Septett": VI. Marcia alla francese
  track: Andante for Flute and Orchestra in C Major, K. 315 - Cadenza: Susan Palma
  track: Horn Concerto No. 1 in D Major, K. 412: I. Allegro
  track: Concerto for Flute, Harp, and Orchestra in C Major, K. 299: I. Allegro - Cadenza: Susan Palma and Bernard Rose
  track: Serenata notturna in D Major, K. 239: III. Rondeau
  track: Horn Concerto No. 1 in D Major, K. 412: II. Rondo. Allegro
  track: Concerto for Flute, Harp, and Orchestra in C Major, K. 299: II. Andantino
  track: Ein musikalischer Spass, K. 522: I. Allegro
  track: Divertimento No. 2 in D Major, K. 131: II. Adagio
  track: Horn Concerto No. 3 in E Flat Major, K. 447: I. Allegro - Cadenza: William Purvis
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  track: Ein musikalischer Spass, K. 522: IV. Presto
  track: Horn Concerto No. 4 in E Flat Major, K. 495: I. Allegro maestoso - Cadenza: David Jolley after Dennis Brain
  track: Horn Concerto No. 4 in E Flat Major, K. 495: II. Romanza (Andante)
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album: Mozart: Complete Wind Concertos
album: Tune Your Brain With Mozart
album: Klassik zum Fest
album: Piano and Strings
album: Variations on a Melancholy Theme
album: Mendelssohn
album: Double Concerto for Violin and Bandoneon, No. 1
album: Michael Hersch: End Stages & Violin Concerto
album: Beethoven: Symphonies Nos. 5 & 7
album: Respighi: Orchestral Works - Pini di Roma; Fontane di Roma; Feste romane; Gli uccelli; Antiche danz ed arie; Suites 1 & 3; Trittico botticelliano
album: Handel: Water Music-Suite No.1
album: Mozart: Piano Concertos Nos. 21 & 22
album: Vivaldi: The Four Seasons & Violin Concerto Op. 12 No. 1, RV 317
album: Adagio - Barockmusik
album: Mozart: Serenades K. 361 & 375
album: Tea Time Classics
album: Handel: Concerti grossi Op. 6, Water Music, Fireworks Music
album: Andreas Scholl - Wayfaring Stranger - Folksongs
album: Stravinsky: Shadow Dances
album: Schumann: Cello Concerto; Chamber Music
album: Stravinsky: Orpheus; Danses concertantes
album: Saint-Saëns: Cello Concerto No.1; Cello Sonata No.1; Suite, Op. 16; Le Cygne From Le Carnival Des Animaux; Allegro Apassionato, Op. 43; Romance In F Major, Op. 36
album: Tchaikovsky: Rococo Variations; Souvenir de Florence; Lensky's Aria From "Eugen Onegin"; Nocturne In D Minor (From Op. 19, No. 4); Andante Cantabile, Op. 11

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Oboe Concerto in C Major, K. 314: I. Allegro aperto - Cadenza: Randall Wolfgang
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  date published: 2026-07-02T03:55:08Z
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Divertimento No. 11 in D Major, K. 251 "Nannerl-Septett": I. Molto allegro
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T11:38:34Z
audio: Divertimento No. 11 in D Major, K. 251 "Nannerl-Septett": I. Molto allegro
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Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: II. Adagio
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duration: PT8M48S
duration ms: 528920
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by artist: Wolfgang Amadeus Mozart
by artist: Stephen Taylor
by artist: David Singer
by artist: William Purvis
by artist: Steven Dibner
by artist: Orpheus Chamber Orchestra
in album: Mozart, W.A.: The Wind Concertos / Serenades / Divertimenti
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popularity: 13
genre: classical
genre: classical-era
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: II. Adagio
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Bassoon Concerto in B Flat Major, K. 191: II. Andante ma adagio - Cadenza: Frank Morelli
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by artist: Wolfgang Amadeus Mozart
by artist: Frank Morelli
by artist: Orpheus Chamber Orchestra
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popularity: 10
genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Bassoon Concerto in B Flat Major, K. 191: II. Andante ma adagio - Cadenza: Frank Morelli
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Oboe Concerto in C Major, K. 314: II. Adagio non troppo - Cadenza: Randall Wolfgang
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by artist: Orpheus Chamber Orchestra
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genre: classical
genre: classical-era
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Oboe Concerto in C Major, K. 314: II. Adagio non troppo - Cadenza: Randall Wolfgang
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Serenade in G Major, K. 525 "Eine kleine Nachtmusik": II. Romance (Andante)
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duration: PT5M43S
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by artist: Wolfgang Amadeus Mozart
by artist: Orpheus Chamber Orchestra
in album: Mozart, W.A.: The Wind Concertos / Serenades / Divertimenti
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popularity: 7
genre: classical
genre: classical-era
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Serenade in G Major, K. 525 "Eine kleine Nachtmusik": II. Romance (Andante)
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Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: III. Andantino con variazioni
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duration: PT8M37S
duration ms: 517240
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stephen Taylor
by artist: David Singer
by artist: William Purvis
by artist: Steven Dibner
by artist: Orpheus Chamber Orchestra
in album: Mozart, W.A.: The Wind Concertos / Serenades / Divertimenti
  type: MusicAlbum
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popularity: 13
genre: classical
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: III. Andantino con variazioni
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Bassoon Concerto in B Flat Major, K. 191: III. Rondo. Tempo di Menuetto - Cadenza: Frank Morelli
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duration ms: 269666
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by artist: Orpheus Chamber Orchestra
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Bassoon Concerto in B Flat Major, K. 191: III. Rondo. Tempo di Menuetto - Cadenza: Frank Morelli
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Oboe Concerto in C Major, K. 314: III. Rondo (Allegretto) - Cadenza: Randall Wolfgang
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
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Serenade in G Major, K. 525 "Eine kleine Nachtmusik": III. Menuetto (Allegretto)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T18:39:05Z
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Divertimento No. 11 in D Major, K. 251 "Nannerl-Septett": III. Andantino
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Divertimento No. 11 in D Major, K. 251 "Nannerl-Septett": III. Andantino
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Clarinet Concerto in A Major, K. 622: I. Allegro - Cadenza: Charles Neidich
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Clarinet Concerto in A Major, K. 622: I. Allegro - Cadenza: Charles Neidich
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Horn Concerto No. 2 in E Flat Major, K. 417: I. Allegro maestoso
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subject of: OpenTimestamps Proof of Existence
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audio: Horn Concerto No. 2 in E Flat Major, K. 417: I. Allegro maestoso
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Flute Concerto No. 1 in G Major, K. 313: I. Allegro maestoso - Cadenza and Lead-in: Susan Palma
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Flute Concerto No. 1 in G Major, K. 313: I. Allegro maestoso - Cadenza and Lead-in: Susan Palma
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Serenade in G Major, K. 525 "Eine kleine Nachtmusik": IV. Rondo (Allegro)
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subject of: OpenTimestamps Proof of Existence
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Divertimento No. 11 in D Major, K. 251 "Nannerl-Septett": IV. Menuetto (Tema con Variazioni I-III)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T01:26:17Z
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Clarinet Concerto in A Major, K. 622: II. Adagio - Cadenza: Charles Neidich
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subject of: OpenTimestamps Proof of Existence
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Horn Concerto No. 2 in E Flat Major, K. 417: II. Adagio
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subject of: OpenTimestamps Proof of Existence
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Flute Concerto No. 1 in G Major, K. 313: II. Adagio ma non troppo - Cadenza and Lead-in: Susan Palma
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subject of: OpenTimestamps Proof of Existence
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audio: Flute Concerto No. 1 in G Major, K. 313: II. Adagio ma non troppo - Cadenza and Lead-in: Susan Palma
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Serenata notturna in D Major, K. 239: I. Marcia (Maestoso)
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Divertimento No. 11 in D Major, K. 251 "Nannerl-Septett": V. Rondeau. Allegro assai
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Clarinet Concerto in A Major, K. 622: III. Rondo (Allegro)
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Horn Concerto No. 2 in E Flat Major, K. 417: III. Rondo. Allegro - Cadenza: William Purvis
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Flute Concerto No. 1 in G Major, K. 313: III. Rondo. Tempo di Menuetto - Cadenza and Lead-in: Susan Palma
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Divertimento No. 11 in D Major, K. 251 "Nannerl-Septett": VI. Marcia alla francese
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Andante for Flute and Orchestra in C Major, K. 315 - Cadenza: Susan Palma
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Horn Concerto No. 1 in D Major, K. 412: I. Allegro
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Concerto for Flute, Harp, and Orchestra in C Major, K. 299: I. Allegro - Cadenza: Susan Palma and Bernard Rose
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Serenata notturna in D Major, K. 239: III. Rondeau
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-13T07:53:33Z
audio: Serenata notturna in D Major, K. 239: III. Rondeau
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Horn Concerto No. 1 in D Major, K. 412: II. Rondo. Allegro
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Horn Concerto No. 1 in D Major, K. 412: II. Rondo. Allegro
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Concerto for Flute, Harp, and Orchestra in C Major, K. 299: II. Andantino
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by artist: Orpheus Chamber Orchestra
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Concerto for Flute, Harp, and Orchestra in C Major, K. 299: II. Andantino
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Ein musikalischer Spass, K. 522: I. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T01:26:17Z
audio: Ein musikalischer Spass, K. 522: I. Allegro
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Divertimento No. 2 in D Major, K. 131: II. Adagio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
audio: Divertimento No. 2 in D Major, K. 131: II. Adagio
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Horn Concerto No. 3 in E Flat Major, K. 447: I. Allegro - Cadenza: William Purvis
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Horn Concerto No. 3 in E Flat Major, K. 447: I. Allegro - Cadenza: William Purvis
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Concerto for Flute, Harp, and Orchestra in C Major, K. 299: III. Rondeau. Allegro - Cadenza: Susan Palma and Bernard Rose
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T11:38:34Z
audio: Concerto for Flute, Harp, and Orchestra in C Major, K. 299: III. Rondeau. Allegro - Cadenza: Susan Palma and Bernard Rose
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Ein musikalischer Spass, K. 522: II. Menuetto (Maestoso) - Trio
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subject of: OpenTimestamps Proof of Existence
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audio: Ein musikalischer Spass, K. 522: II. Menuetto (Maestoso) - Trio
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Horn Concerto No. 3 in E Flat Major, K. 447: II. Romance (Larghetto)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Horn Concerto No. 3 in E Flat Major, K. 447: II. Romance (Larghetto)
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Horn Concerto No. 3 in E Flat Major, K. 447: III. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Horn Concerto No. 3 in E Flat Major, K. 447: III. Allegro
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Ein musikalischer Spass, K. 522: IV. Presto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Ein musikalischer Spass, K. 522: IV. Presto
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Horn Concerto No. 4 in E Flat Major, K. 495: I. Allegro maestoso - Cadenza: David Jolley after Dennis Brain
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Horn Concerto No. 4 in E Flat Major, K. 495: I. Allegro maestoso - Cadenza: David Jolley after Dennis Brain
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Horn Concerto No. 4 in E Flat Major, K. 495: II. Romanza (Andante)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
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Horn Concerto No. 4 in E Flat Major, K. 495: III. Rondo (Allegro vivace)
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  date published: 2026-07-02T05:09:12Z
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Mozart: Complete Wind Concertos
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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Tune Your Brain With Mozart
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
  audio: Sinfonia concertante in E Flat Major for Oboe, Clarinet, Horn, Bassoon and Orch., K. 297b: III. Andantino con variazioni
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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  subject of: OpenTimestamps Proof of Existence
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track: Violin Concerto No. 3 in G Major, K. 216: 2. Adagio
track: Divertimento No. 11 in D Major, K. 251 "Nannerl-Septett": III. Andantino
track: Serenade No. 9 in D Major, K. 320 "Posthorn": 3. Concertante (Andante grazioso)
track: Clarinet Concerto in A Major, K. 622: III. Rondo. Allegro - Live
track: Violin Sonata in B-Flat Major, K. 454: III. Allegretto
track: String Quartet No. 14 in G, K.387: 1. Allegro vivace assai

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OpenTimestamps Proof of Existence
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date published: 2026-06-13T13:32:09Z

Serenade in E-Flat Major, K. 375: III. Adagio
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Violin Concerto No. 3 in G Major, K. 216: 2. Adagio
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by artist: Wolfgang Schneiderhan
by artist: Berliner Philharmoniker
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Violin Concerto No. 3 in G Major, K. 216: 2. Adagio
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Divertimento No. 11 in D Major, K. 251 "Nannerl-Septett": III. Andantino
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by artist: Orpheus Chamber Orchestra
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Divertimento No. 11 in D Major, K. 251 "Nannerl-Septett": III. Andantino
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Serenade No. 9 in D Major, K. 320 "Posthorn": 3. Concertante (Andante grazioso)
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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Clarinet Concerto in A Major, K. 622: III. Rondo. Allegro - Live
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subject of: OpenTimestamps Proof of Existence
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Violin Sonata in B-Flat Major, K. 454: III. Allegretto
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subject of: OpenTimestamps Proof of Existence
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String Quartet No. 14 in G, K.387: 1. Allegro vivace assai
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audio: String Quartet No. 14 in G, K.387: 1. Allegro vivace assai
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Klassik zum Fest
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    date published: 2026-07-08T03:22:41Z
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Piano and Strings
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    date published: 2026-06-13T15:41:10Z
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Variations on a Melancholy Theme
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    type: PropertyValue
    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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d41cfe681792be2a6327e1c83fdd07b925bcac4ca9827b55c7a0e1ba5c14b6. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO12000405.
    date published: 2026-07-02T11:38:34Z
  audio: Theme
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 98.104
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.239
    additional property: Energy
      type: PropertyValue
      value: 0.023
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.991
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.863
    additional property: Liveness
      type: PropertyValue
      value: 0.114
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.044
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.896
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Variation 3
  type: MusicRecording
  duration: PT1M25S
  duration ms: 85386
  explicit: false
  by artist: Brad Mehldau
  by artist: Orpheus Chamber Orchestra
  in album: Variations on a Melancholy Theme
    type: MusicAlbum
    date published: 2021-06-11
  isrc code: USNO12000408
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T20:31:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd46058a4be2998895a19da4088fda3058e404fb3b6cb6a925fa0ef0f568914b0
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO12000408
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46058a4be2998895a19da4088fda3058e404fb3b6cb6a925fa0ef0f568914b0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO12000408.
    date published: 2026-07-08T03:22:41Z
  audio: Variation 3
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 145.89
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.394
    additional property: Energy
      type: PropertyValue
      value: 0.417
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.984
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.7
    additional property: Liveness
      type: PropertyValue
      value: 0.125
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.256
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.011
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Variation 4
  type: MusicRecording
  duration: PT1M29S
  duration ms: 89880
  explicit: false
  by artist: Brad Mehldau
  by artist: Orpheus Chamber Orchestra
  in album: Variations on a Melancholy Theme
    type: MusicAlbum
    date published: 2021-06-11
  isrc code: USNO12000409
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T20:44:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe6adb7196b0324f5ae682ac8e461dce7f51fe0e74e3c2432450349add89a5e59
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Variation 4
track: Variation 5
track: Variation 8
track: Variation 9
track: Cadenza

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO12000409

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

OTSVerifyInstructions
type: PropertyValue
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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6adb7196b0324f5ae682ac8e461dce7f51fe0e74e3c2432450349add89a5e59. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO12000409.
date published: 2026-07-08T03:20:19Z

Variation 4
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 111.964
additional property: Musical Key
  type: PropertyValue
  value: 8
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.403
additional property: Energy
  type: PropertyValue
  value: 0.279
additional property: Speechiness
  type: PropertyValue
  value: 0.032
additional property: Acousticness
  type: PropertyValue
  value: 0.982
additional property: Instrumentalness
  type: PropertyValue
  value: 0.863
additional property: Liveness
  type: PropertyValue
  value: 0.119
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.149
additional property: Loudness (dB)
  type: PropertyValue
  value: -15.809
additional property: Key Name
  type: PropertyValue
  value: Ab
additional property: Mode Name
  type: PropertyValue
  value: Major

Variation 5
type: MusicRecording
duration: PT0M44S
duration ms: 44866
explicit: false
by artist: Brad Mehldau
by artist: Orpheus Chamber Orchestra
in album: Variations on a Melancholy Theme
  type: MusicAlbum
  date published: 2021-06-11
isrc code: USNO12000410
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:33:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x44e85193b7da8b2a116ac91afb4fa502b3c7cb91cc51ec3c197da7699c4ae392
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO12000410
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e85193b7da8b2a116ac91afb4fa502b3c7cb91cc51ec3c197da7699c4ae392. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO12000410.
  date published: 2026-07-08T08:56:20Z
audio: Variation 5
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.499
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.486
  additional property: Energy
    type: PropertyValue
    value: 0.203
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.947
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.841
  additional property: Liveness
    type: PropertyValue
    value: 0.507
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.312
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.598
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Variation 8
type: MusicRecording
duration: PT2M41S
duration ms: 161320
explicit: false
by artist: Brad Mehldau
by artist: Orpheus Chamber Orchestra
in album: Variations on a Melancholy Theme
  type: MusicAlbum
  date published: 2021-06-11
isrc code: USNO12000413
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:42:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x20942aecb797a53bcb7bd11d0478c12cbfd7904a1b2135842abd37ea0af445f2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO12000413
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20942aecb797a53bcb7bd11d0478c12cbfd7904a1b2135842abd37ea0af445f2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO12000413.
  date published: 2026-07-08T03:22:41Z
audio: Variation 8
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.668
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.266
  additional property: Energy
    type: PropertyValue
    value: 0.114
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.842
  additional property: Liveness
    type: PropertyValue
    value: 0.107
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.034
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.994
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Variation 9
type: MusicRecording
duration: PT0M51S
duration ms: 51853
explicit: false
by artist: Brad Mehldau
by artist: Orpheus Chamber Orchestra
in album: Variations on a Melancholy Theme
  type: MusicAlbum
  date published: 2021-06-11
isrc code: USNO12000414
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:42:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5e7eb101cfec0411caefec2c2deb56be95b84da8e11055cc0a9283bb27e3c582
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO12000414
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7eb101cfec0411caefec2c2deb56be95b84da8e11055cc0a9283bb27e3c582. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO12000414.
  date published: 2026-07-08T03:22:41Z
audio: Variation 9
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.827
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.231
  additional property: Energy
    type: PropertyValue
    value: 0.028
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.972
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.927
  additional property: Liveness
    type: PropertyValue
    value: 0.128
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.198
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.882
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Cadenza
type: MusicRecording
duration: PT1M57S
duration ms: 117533
explicit: false
by artist: Brad Mehldau
by artist: Orpheus Chamber Orchestra
in album: Variations on a Melancholy Theme
  type: MusicAlbum
  date published: 2021-06-11
isrc code: USNO12000417
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:27:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x309b305ba4d6d8db38f7f51ee4fb5fa4fa69a711465572e327ae44041265584f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO12000417
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309b305ba4d6d8db38f7f51ee4fb5fa4fa69a711465572e327ae44041265584f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USNO12000417.
  date published: 2026-07-08T03:22:41Z
audio: Cadenza
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.116
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.38
  additional property: Energy
    type: PropertyValue
    value: 0.077
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.804
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.053
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.675
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mendelssohn
type: MusicAlbum
date published: 2019-02-01
track: Piano Concerto No. 1 in G Minor, Op. 25, MWV O7: I. Molto allegro con fuoco
  type: MusicRecording
  duration: PT7M23S
  duration ms: 443640
  explicit: false
  by artist: Felix Mendelssohn
  by artist: Jan Lisiecki
  by artist: Orpheus Chamber Orchestra
  in album: Mendelssohn
    type: MusicAlbum
    date published: 2019-02-01
  genre: classical
  genre: early-romantic-era
  genre: german-romanticism
  isrc code: DEN961802191
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-05T22:32:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xcd68488fc71e1188646988a37ab5c1c41181933eb42b684a1924521eae9c6d33
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953528
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953528
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961802191
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T15:41:10Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    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
  subject of: OpenTimestamps Proof of Existence
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track: Variations sérieuses, Op. 54, MWV U156: Tema. Andante sostenuto
track: Variations sérieuses, Op. 54, MWV U156: Variation I
track: Variations sérieuses, Op. 54, MWV U156: Variation II: Un poco più animato
track: Variations sérieuses, Op. 54, MWV U156: Variation X: Moderato
track: Variations sérieuses, Op. 54, MWV U156: Variation XI: Cantabile
track: Variations sérieuses, Op. 54, MWV U156: Variation XIII: Sempre assai leggiero
track: Variations sérieuses, Op. 54, MWV U156: Variation XIV: Adagio
track: Variations sérieuses, Op. 54, MWV U156: Variation XV: Poco a poco più agitato
track: Variations sérieuses, Op. 54, MWV U156: Variation XVII
track: Piano Concerto No. 2 in D Minor, Op. 40, MWV O11: I. Allegro appassionato
track: Piano Concerto No. 2 in D Minor, Op. 40, MWV O11: II. Adagio. Molto sostenuto
track: Piano Concerto No. 2 in D Minor, Op. 40, MWV O11: III. Finale. Presto scherzando
track: Rondo capriccioso in E Major, Op. 14, MWV U67: I. Andante
track: Rondo capriccioso in E Major, Op. 14, MWV U67: II. Presto leggiero
track: Lieder ohne Worte, Op. 19: No. 6 in G Minor (Andante sostenuto) "Venetian Gondola Song", MWV U78

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Piano Concerto No. 1 in G Minor, Op. 25, MWV O7: III. Presto. Molto allegro e vivace
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Variations sérieuses, Op. 54, MWV U156: Tema. Andante sostenuto
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Variations sérieuses, Op. 54, MWV U156: Variation I
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Variations sérieuses, Op. 54, MWV U156: Variation II: Un poco più animato
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Variations sérieuses, Op. 54, MWV U156: Variation X: Moderato
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Variations sérieuses, Op. 54, MWV U156: Variation XI: Cantabile
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Variations sérieuses, Op. 54, MWV U156: Variation XIII: Sempre assai leggiero
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  date published: 2026-07-02T03:30:09Z
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Variations sérieuses, Op. 54, MWV U156: Variation XIV: Adagio
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Variations sérieuses, Op. 54, MWV U156: Variation XV: Poco a poco più agitato
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Variations sérieuses, Op. 54, MWV U156: Variation XVII
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Piano Concerto No. 2 in D Minor, Op. 40, MWV O11: I. Allegro appassionato
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Piano Concerto No. 2 in D Minor, Op. 40, MWV O11: II. Adagio. Molto sostenuto
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Piano Concerto No. 2 in D Minor, Op. 40, MWV O11: III. Finale. Presto scherzando
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Rondo capriccioso in E Major, Op. 14, MWV U67: I. Andante
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Rondo capriccioso in E Major, Op. 14, MWV U67: II. Presto leggiero
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Lieder ohne Worte, Op. 19: No. 6 in G Minor (Andante sostenuto) "Venetian Gondola Song", MWV U78
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Double Concerto for Violin and Bandoneon, No. 1
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Michael Hersch: End Stages & Violin Concerto
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Beethoven: Symphonies Nos. 5 & 7
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Respighi: Orchestral Works - Pini di Roma; Fontane di Roma; Feste romane; Gli uccelli; Antiche danz ed arie; Suites 1 & 3; Trittico botticelliano
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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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a17eeb18c32d6263840637b28ebae17b5ccfc3d512357cc21d2a3ca993ceaf2. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059104341.
date published: 2026-07-07T16:07:00Z

Pini di Roma, P. 141: I. I pini di Villa Borghese
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 110.686
additional property: Musical Key
  type: PropertyValue
  value: 5
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.259
additional property: Energy
  type: PropertyValue
  value: 0.443
additional property: Speechiness
  type: PropertyValue
  value: 0.038
additional property: Acousticness
  type: PropertyValue
  value: 0.926
additional property: Instrumentalness
  type: PropertyValue
  value: 0.92
additional property: Liveness
  type: PropertyValue
  value: 0.317
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.464
additional property: Loudness (dB)
  type: PropertyValue
  value: -16.201
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Major

The Birds, P. 154: V. The Cuckoo (Il cuccù)
type: MusicRecording
duration: PT4M17S
duration ms: 257000
explicit: false
by artist: Ottorino Respighi
by artist: Orpheus Chamber Orchestra
in album: Respighi: Orchestral Works - Pini di Roma; Fontane di Roma; Feste romane; Gli uccelli; Antiche danz ed arie; Suites 1 & 3; Trittico botticelliano
  type: MusicAlbum
  date published: 2011-01-01
popularity: 39
isrc code: DEF059104185
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T09:04:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaab9177e42f22a31d0390be4f339a707d8b31644c316ca4addd3bf8de13d49b9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953536
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059104185
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab9177e42f22a31d0390be4f339a707d8b31644c316ca4addd3bf8de13d49b9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059104185.
  date published: 2026-06-13T17:25:41Z
audio: The Birds, P. 154: V. The Cuckoo (Il cuccù)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.281
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.309
  additional property: Energy
    type: PropertyValue
    value: 0.029
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.958
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.126
  additional property: Liveness
    type: PropertyValue
    value: 0.278
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.1
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.982
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Pini di Roma, P. 141: II. Pini presso una catacomba
type: MusicRecording
duration: PT7M5S
duration ms: 425026
explicit: false
by artist: Ottorino Respighi
by artist: New York Philharmonic
by artist: Giuseppe Sinopoli
in album: Respighi: Orchestral Works - Pini di Roma; Fontane di Roma; Feste romane; Gli uccelli; Antiche danz ed arie; Suites 1 & 3; Trittico botticelliano
  type: MusicAlbum
  date published: 2011-01-01
popularity: 5
isrc code: DEF059104342
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-03T15:21:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7c3fd0ee0df3184fa2b1243357ad13a6debb4a10228bf85f7cc058112424b218
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059104342
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3fd0ee0df3184fa2b1243357ad13a6debb4a10228bf85f7cc058112424b218. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059104342.
  date published: 2026-07-08T03:20:19Z
audio: Pini di Roma, P. 141: II. Pini presso una catacomba
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.412
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.134
  additional property: Energy
    type: PropertyValue
    value: 0.027
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.91
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.968
  additional property: Liveness
    type: PropertyValue
    value: 0.103
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.036
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.117
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Pini di Roma, P. 141: III. I pini del Gianicolo
type: MusicRecording
duration: PT7M15S
duration ms: 435373
explicit: false
by artist: Ottorino Respighi
by artist: New York Philharmonic
by artist: Giuseppe Sinopoli
in album: Respighi: Orchestral Works - Pini di Roma; Fontane di Roma; Feste romane; Gli uccelli; Antiche danz ed arie; Suites 1 & 3; Trittico botticelliano
  type: MusicAlbum
  date published: 2011-01-01
popularity: 4
isrc code: DEF059104343
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T05:10:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x169690f302d664c9d4b4752351e0ebbcd5b15f2975eb072358714e68a23f9181
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059104343
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169690f302d664c9d4b4752351e0ebbcd5b15f2975eb072358714e68a23f9181. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059104343.
  date published: 2026-07-08T08:56:20Z
audio: Pini di Roma, P. 141: III. I pini del Gianicolo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.476
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.136
  additional property: Energy
    type: PropertyValue
    value: 0.022
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.883
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.144
  additional property: Liveness
    type: PropertyValue
    value: 0.096
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.035
  additional property: Loudness (dB)
    type: PropertyValue
    value: -34.604
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

Roman Festivals: III. L'Ottobrata
type: MusicRecording
duration: PT7M56S
duration ms: 476026
explicit: false
by artist: Ottorino Respighi
by artist: New York Philharmonic
by artist: Giuseppe Sinopoli
in album: Respighi: Orchestral Works - Pini di Roma; Fontane di Roma; Feste romane; Gli uccelli; Antiche danz ed arie; Suites 1 & 3; Trittico botticelliano
  type: MusicAlbum
  date published: 2011-01-01
popularity: 3
isrc code: DEF059104353
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:23:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x936bd27920b1c78573266e77f474f39a58d0f06ebecdba76526fbb5164dfa79a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059104353
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936bd27920b1c78573266e77f474f39a58d0f06ebecdba76526fbb5164dfa79a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059104353.
  date published: 2026-07-08T08:56:20Z
audio: Roman Festivals: III. L'Ottobrata
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.419
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.118
  additional property: Energy
    type: PropertyValue
    value: 0.031
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.916
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.847
  additional property: Liveness
    type: PropertyValue
    value: 0.093
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.035
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.139
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Roman Festivals: IV. La Befana
type: MusicRecording
duration: PT5M42S
duration ms: 342706
explicit: false
by artist: Ottorino Respighi
by artist: New York Philharmonic
by artist: Giuseppe Sinopoli
by artist: Johannes Geffert
in album: Respighi: Orchestral Works - Pini di Roma; Fontane di Roma; Feste romane; Gli uccelli; Antiche danz ed arie; Suites 1 & 3; Trittico botticelliano
  type: MusicAlbum
  date published: 2011-01-01
popularity: 5
isrc code: DEF059104354
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T18:14:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x05901b30da44eb631a392ac095bd7dcfa5cb027518e67b5537e41626436a5d5d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059104354
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05901b30da44eb631a392ac095bd7dcfa5cb027518e67b5537e41626436a5d5d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059104354.
  date published: 2026-07-08T03:53:27Z
audio: Roman Festivals: IV. La Befana
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.359
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.21
  additional property: Energy
    type: PropertyValue
    value: 0.487
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.874
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.853
  additional property: Liveness
    type: PropertyValue
    value: 0.207
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.328
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.802
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Handel: Water Music-Suite No.1
type: MusicAlbum
date published: 2009-01-01
track: Water Music Suite No. 1 in F Major, HWV 348: VIII. Hornpipe
  type: MusicRecording
  duration: PT2M16S
  duration ms: 136733
  explicit: false
  by artist: George Frideric Handel
  by artist: Orpheus Chamber Orchestra
  in album: Handel: Water Music-Suite No.1
    type: MusicAlbum
    date published: 2009-01-01
  genre: classical
  genre: early-music
  genre: baroque
  genre: english-baroque
  genre: german-baroque
  isrc code: DEF059031209
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T08:30:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6e531217cff025b05b8b107ed7b62ee4b9a8fb56edb2586dfef13830b0aa20ab
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957124
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059031209
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:53:27Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e531217cff025b05b8b107ed7b62ee4b9a8fb56edb2586dfef13830b0aa20ab. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059031209.
    date published: 2026-07-08T03:53:27Z
  audio: Water Music Suite No. 1 in F Major, HWV 348: VIII. Hornpipe
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 126.233
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.66
    additional property: Energy
      type: PropertyValue
      value: 0.094
    additional property: Speechiness
      type: PropertyValue
      value: 0.051
    additional property: Acousticness
      type: PropertyValue
      value: 0.962
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.849
    additional property: Liveness
      type: PropertyValue
      value: 0.1
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.927
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.821
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major

Mozart: Piano Concertos Nos. 21 & 22
type: MusicAlbum
date published: 2008-09-15
track: Mozart: Piano Concerto No. 21 in C Major, K. 467: I. Allegro maestoso
  type: MusicRecording
  duration: PT14M21S
  duration ms: 861706
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Jonathan Biss
  by artist: Orpheus Chamber Orchestra
  in album: Mozart: Piano Concertos Nos. 21 & 22
    type: MusicAlbum
    date published: 2008-09-15
  genre: classical
  genre: classical-era
  isrc code: GBAYC0801625
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-21T05:19:09+00:00
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    date published: 2026-07-02T03:55:08Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T12:47:07Z
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track: Mozart: Piano Concerto No. 22 in E-Flat Major, K. 482: I. Allegro
track: Mozart: Piano Concerto No. 22 in E-Flat Major, K. 482: II. Andante
track: Mozart: Piano Concerto No. 22 in E-Flat Major, K. 482: III. Allegro

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OpenTimestamps Proof of Existence
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date published: 2026-07-02T05:09:12Z

Mozart: Piano Concerto No. 21 in C Major, K. 467: III. Allegro vivace assai
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Mozart: Piano Concerto No. 22 in E-Flat Major, K. 482: I. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Mozart: Piano Concerto No. 22 in E-Flat Major, K. 482: I. Allegro
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Mozart: Piano Concerto No. 22 in E-Flat Major, K. 482: II. Andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
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Mozart: Piano Concerto No. 22 in E-Flat Major, K. 482: III. Allegro
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    date published: 2026-07-08T03:22:41Z
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Vivaldi: The Four Seasons, Violin Concerto in F Major, Op. 8 No. 3, RV 293 "Autumn": I. Allegro
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Vivaldi: The Four Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": III. Allegro
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Vivaldi: Violin Concerto in G Minor, Op. 12 No. 1, RV 317: III. Allegro
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  date published: 2026-07-08T03:22:41Z
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Adagio - Barockmusik
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    date published: 2026-07-08T03:53:27Z
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track: Concerto Grosso in F Major, Op. 6, No. 2, HWV 320: I. Andante larghetto
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track: Concerto Grosso in E Minor, Op. 6, No. 3, HWV 321: IV. Polonaise (Andante)
track: Concerto Grosso in A Minor, Op. 6, No. 4, HWV 322: II. Allegro
track: Concerto Grosso in D Major, Op. 6, No. 5, HWV 323: I. (Larghetto, e staccato)

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Concerto Grosso in F Major, Op. 6, No. 2, HWV 320: IV. Allegro, ma non troppo
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Concerto Grosso in E Minor, Op. 6, No. 3, HWV 321: IV. Polonaise (Andante)
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Concerto Grosso in A Minor, Op. 6, No. 4, HWV 322: II. Allegro
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Concerto Grosso in D Major, Op. 6, No. 5, HWV 323: I. (Larghetto, e staccato)
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Andreas Scholl - Wayfaring Stranger - Folksongs
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    date published: 2026-07-02T03:55:08Z
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track: My Love Is Like A Red, Red Rose
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track: Henry Martin
track: Blow the Wind Southerly
track: Down in yon Forest
track: Barbara Allen
track: The wraggle taggle gypsies, o!

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My Love Is Like A Red, Red Rose
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Henry Martin
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Blow the Wind Southerly
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Down in yon Forest
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Barbara Allen
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The wraggle taggle gypsies, o!
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audio: The wraggle taggle gypsies, o!
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Stravinsky: Shadow Dances
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Schumann: Cello Concerto; Chamber Music
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  subject of: OpenTimestamps Proof of Existence
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track: Cello Concerto in A Minor, Op. 129: I. Nicht zu schnell
track: Cello Concerto in A Minor, Op. 129: II. Langsam

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OTSVerificationAPI
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:53:27Z

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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Cello Concerto in A Minor, Op. 129: II. Langsam
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:20:19Z

Orpheus - Ballet in 3 Scenes / 2nd scene: Air de danse
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Orpheus - Ballet in 3 Scenes / 2nd scene: Pas de deux
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Orpheus - Ballet in 3 Scenes / 2nd scene: Pas d'action
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Danses Concertantes for Chamber Orchestra: II. Pas d'action
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Saint-Saëns: Cello Concerto No.1; Cello Sonata No.1; Suite, Op. 16; Le Cygne From Le Carnival Des Animaux; Allegro Apassionato, Op. 43; Romance In F Major, Op. 36
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track: Le carnaval des animaux, R. 125: Le cygne
track: Allegro appassionato for Cello and Orchestra, Op. 43
track: Romance in F Major, Op. 36, R. 195
track: Suite For Cello And Orchestra, Op. 16: I. Prélude (moderato assai)
track: Suite for Cello and Orchestra, Op. 16: II. Sérénade (andantino)
track: Suite for Cello and Orchestra, Op. 16: III. Gavotte (allegro non troppo)
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track: Sonata for Violoncello and Piano No. 1 in C Minor, Op. 32: I. Allegro
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OTSVerificationAPI
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value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059704363

OTSTimestamp
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OTSVerifyInstructions
type: PropertyValue
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

OpenTimestamps Proof of Existence
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description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd32bbdbf8b34304e549fdce2d4935b7cdf7f07ce1589d92a8393145e3218b45. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059704363.
date published: 2026-06-13T17:25:41Z

Cello Concerto No. 1 in A Minor, Op. 33: Tempo primo (H)
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Le carnaval des animaux, R. 125: Le cygne
type: MusicRecording
duration: PT4M11S
duration ms: 251000
explicit: false
by artist: Camille Saint-Saëns
by artist: Mischa Maisky
by artist: Orpheus Chamber Orchestra
in album: Saint-Saëns: Cello Concerto No.1; Cello Sonata No.1; Suite, Op. 16; Le Cygne From Le Carnival Des Animaux; Allegro Apassionato, Op. 43; Romance In F Major, Op. 36
  type: MusicAlbum
  date published: 1998-01-01
popularity: 51
genre: classical
genre: late-romantic-era
genre: french-romanticism
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Le carnaval des animaux, R. 125: Le cygne
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Allegro appassionato for Cello and Orchestra, Op. 43
type: MusicRecording
duration: PT3M44S
duration ms: 224000
explicit: false
by artist: Camille Saint-Saëns
by artist: Mischa Maisky
by artist: Orpheus Chamber Orchestra
in album: Saint-Saëns: Cello Concerto No.1; Cello Sonata No.1; Suite, Op. 16; Le Cygne From Le Carnival Des Animaux; Allegro Apassionato, Op. 43; Romance In F Major, Op. 36
  type: MusicAlbum
  date published: 1998-01-01
popularity: 33
genre: classical
genre: late-romantic-era
genre: french-romanticism
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:53:06Z
audio: Allegro appassionato for Cello and Orchestra, Op. 43
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Romance in F Major, Op. 36, R. 195
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duration: PT3M20S
duration ms: 200000
explicit: false
by artist: Camille Saint-Saëns
by artist: Mischa Maisky
by artist: Orpheus Chamber Orchestra
in album: Saint-Saëns: Cello Concerto No.1; Cello Sonata No.1; Suite, Op. 16; Le Cygne From Le Carnival Des Animaux; Allegro Apassionato, Op. 43; Romance In F Major, Op. 36
  type: MusicAlbum
  date published: 1998-01-01
popularity: 34
genre: classical
genre: late-romantic-era
genre: french-romanticism
isrc code: DEF059704390
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Romance in F Major, Op. 36, R. 195
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Suite For Cello And Orchestra, Op. 16: I. Prélude (moderato assai)
type: MusicRecording
duration: PT2M44S
duration ms: 164000
explicit: false
by artist: Camille Saint-Saëns
by artist: Mischa Maisky
by artist: Orpheus Chamber Orchestra
in album: Saint-Saëns: Cello Concerto No.1; Cello Sonata No.1; Suite, Op. 16; Le Cygne From Le Carnival Des Animaux; Allegro Apassionato, Op. 43; Romance In F Major, Op. 36
  type: MusicAlbum
  date published: 1998-01-01
popularity: 23
genre: classical
genre: late-romantic-era
genre: french-romanticism
isrc code: DEF059704401
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Suite For Cello And Orchestra, Op. 16: I. Prélude (moderato assai)
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Suite for Cello and Orchestra, Op. 16: II. Sérénade (andantino)
type: MusicRecording
duration: PT3M31S
duration ms: 211000
explicit: false
by artist: Camille Saint-Saëns
by artist: Mischa Maisky
by artist: Orpheus Chamber Orchestra
in album: Saint-Saëns: Cello Concerto No.1; Cello Sonata No.1; Suite, Op. 16; Le Cygne From Le Carnival Des Animaux; Allegro Apassionato, Op. 43; Romance In F Major, Op. 36
  type: MusicAlbum
  date published: 1998-01-01
popularity: 43
genre: classical
genre: late-romantic-era
genre: french-romanticism
isrc code: DEF059704402
additional property: CopyrightID
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Suite for Cello and Orchestra, Op. 16: II. Sérénade (andantino)
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Suite for Cello and Orchestra, Op. 16: III. Gavotte (allegro non troppo)
type: MusicRecording
duration: PT3M25S
duration ms: 205000
explicit: false
by artist: Camille Saint-Saëns
by artist: Mischa Maisky
by artist: Orpheus Chamber Orchestra
in album: Saint-Saëns: Cello Concerto No.1; Cello Sonata No.1; Suite, Op. 16; Le Cygne From Le Carnival Des Animaux; Allegro Apassionato, Op. 43; Romance In F Major, Op. 36
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  date published: 1998-01-01
popularity: 22
genre: classical
genre: late-romantic-era
genre: french-romanticism
isrc code: DEF059704403
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Suite for Cello and Orchestra, Op. 16: III. Gavotte (allegro non troppo)
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Suite for Cello and Orchestra, Op. 16: IV. Romance (molto adagio)
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Suite for Cello and Orchestra, Op. 16: V. Tarantelle (presto non troppo)
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Sonata for Violoncello and Piano No. 1 in C Minor, Op. 32: I. Allegro
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Sonata for Violoncello and Piano No. 1 in C Minor, Op. 32: II. Andante tranquillo sostenuto
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Sonata for Violoncello and Piano No. 1 in C Minor, Op. 32: III. Allegro moderato
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Tchaikovsky: Rococo Variations; Souvenir de Florence; Lensky's Aria From "Eugen Onegin"; Nocturne In D Minor (From Op. 19, No. 4); Andante Cantabile, Op. 11
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  date published: 2026-07-02T11:38:34Z
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