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  track: Horn Concerto No. 2 in E-Flat Major, K. 417: II. Andante
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Flute Concerto No. 1 in G Major, K. 313: II. Adagio non troppo
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  date published: 2026-06-13T12:47:07Z
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Concerto for Flute & Harp in C Major, K. 299: Concerto for Flute and Harp in C Major, K. 299: III. Rondo: Allegro
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  date published: 2026-06-13T12:47:07Z
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Concerto For 4 Harpsichords In A Minor, BWV 1065: I. - Allegro
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Concerto For 4 Harpsichords In A Minor, BWV 1065: II. Largo
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additional property: OTSVerifyInstructions
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  date published: 2026-06-13T17:25:41Z
audio: Concerto For 4 Harpsichords In A Minor, BWV 1065: II. Largo
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Concerto For 4 Harpsichords In A Minor, BWV 1065: III. Allegro
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by artist: Christoph Anselm Noll
by artist: Roderick Shaw
by artist: Gerald Hambitzer
by artist: Robert Hill
by artist: Johann Sebastian Bach
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  date published: 2026-06-13T12:47:07Z
audio: Concerto For 4 Harpsichords In A Minor, BWV 1065: III. Allegro
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Symphony No. 40 in G Minor, K. 550: II. Andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T18:50:38Z
audio: Symphony No. 40 in G Minor, K. 550: II. Andante
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Horn Concerto No. 2 in E-Flat Major, K. 417: II. Andante
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:16:32Z
audio: Horn Concerto No. 2 in E-Flat Major, K. 417: II. Andante
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Piano Concerto No. 6 in B-Flat Major, K. 238: II. Andante un poco adagio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Piano Concerto No. 6 in B-Flat Major, K. 238: II. Andante un poco adagio
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String Quartet No. 20 in D Major, K. 499, "hoffmeister": Iii. Adagio
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: String Quartet No. 20 in D Major, K. 499, "hoffmeister": Iii. Adagio
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Piano Sonata No. 17 in B-Flat Major, K. 570: II. Adagio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T18:39:05Z
audio: Piano Sonata No. 17 in B-Flat Major, K. 570: II. Adagio
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Symphony No. 39 in E-Flat Major, K. 543: II. Andante con moto
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Così fan tutte, K. 588, Act I Scene 2: Terzet - Soave sia il vento
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Piano Concerto No. 23 in A Major, K. 488: II. Adagio
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Mozart For Relaxation
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track: String Quartet No. 15 in D Minor, K. 421: Ii. Andante
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subject of: OpenTimestamps Proof of Existence
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audio: Concerto for Flute and Harp in C Major, K. 299: Ii. Andantino
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Horn Concerto No. 2 in E-flat Major, K. 417: Ii. Andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Horn Concerto No. 2 in E-flat Major, K. 417: Ii. Andante
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String Quartet No. 12 in B-flat Major, K. 172: Ii. Adagio
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subject of: OpenTimestamps Proof of Existence
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audio: String Quartet No. 12 in B-flat Major, K. 172: Ii. Adagio
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Serenade No. 9 in D Major, K. 320, "posthorn": Andantino
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Serenade No. 9 in D Major, K. 320, "posthorn": Andantino
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Symphony No. 40 in G Minor, K. 550: Ii. Andante
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  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 40 in G Minor, K. 550: Ii. Andante
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Piano Concerto No. 5 in D Major, K. 175: Ii. Andante ma poco adagio
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  date published: 2026-07-08T03:22:41Z
audio: Piano Concerto No. 5 in D Major, K. 175: Ii. Andante ma poco adagio
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Piano Concerto No. 25 in C Major, K. 503: Ii. Andante
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audio: Piano Concerto No. 25 in C Major, K. 503: Ii. Andante
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Symphony No. 14 in A Major, K. 114: Ii. Andante
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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audio: Symphony No. 14 in A Major, K. 114: Ii. Andante
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String Quartet No. 20 in D Major, K. 499, "hoffmeister": Iii. Adagio
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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audio: String Quartet No. 20 in D Major, K. 499, "hoffmeister": Iii. Adagio
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Horn Concerto No. 4 in E-flat Major, K. 495: Ii. Romance: Andante cantabile
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Horn Concerto No. 4 in E-flat Major, K. 495: Ii. Romance: Andante cantabile
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Vesperae solennes de Confessore, K. 339: V. Laudate Dominum
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Vesperae solennes de Confessore, K. 339: V. Laudate Dominum
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Relaxing Mozart
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    date published: 2026-07-08T08:56:20Z
  audio: Clarinet Concerto in A major, K. 622: II. Adagio
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track: Piano Sonata No. 12 in F Major, K. 332: Ii. Adagio
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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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track: Piano Concerto No. 23 in A Major, K. 488: II. Adagio
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track: Symphony No. 40 in G Minor, K. 550: II. Andante
track: Concerto for Flute & Harp in C Major, K. 299: II. Andantino
track: Horn Concerto No. 2 in E-Flat Major, K. 417: II. Andante
track: Violin Sonata No. 26 in B-Flat Major, K. 378: II. Andantino sostenuto e cantabile

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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:22:41Z

Piano Concerto No. 23 in A Major, K. 488: II. Adagio
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Concerto for Flute & Harp in C Major, K. 299: II. Andantino
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Tomaso Albinoni, Antonio Caldara, Cantatas
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Tomaso Albinoni, Complete Cantatas Op. 4
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Les Femmes – French Cantatas
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track: Ave verum corpus, K. 618
track: Piano Concerto No. 23 in A Major, K. 488: II. Adagio
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Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
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Ave verum corpus, K. 618
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Piano Concerto No. 23 in A Major, K. 488: II. Adagio
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Fantasia in D Minor, K. 397
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Symphony No. 38 in D Major, K. 504, "Prague": III. Finale: Presto
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Mozart: 30 of the Best
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Become an Instant Expert: Mozart
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Ses plus grandes œuvres: Mozart
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The Story of Naxos (The Soundtrack)
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Fånga dagen
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track: Solomon, HWV 67: Solomon, HWV 67, Act III: Sinfonia, "Arrival of the Queen of Sheba"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Frosoblomster (Froso-Flowers), Book 2: No. 4. Vid Larsmess' (At the Fest of St. Laurence)
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Horn Concerto No. 1 in D Major, K. 412: I. Allegro (reconstructed by J. Humphries)
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by artist: Michael Thompson
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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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Alskliga blommor sma
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Alskliga blommor sma
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Lieder ohne Worte, Book 5, Op. 62: Lied ohne Worte (Song without Words), Book 5, Op. 62: No. 30 in A Major, Op. 62, No. 6, "Fruhlingslied" (Spring Song)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Lieder ohne Worte, Book 5, Op. 62: Lied ohne Worte (Song without Words), Book 5, Op. 62: No. 30 in A Major, Op. 62, No. 6, "Fruhlingslied" (Spring Song)
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Orphée et Eurydice, Act II: Dance of the Blessed Spirits (arr. W. Kempff for piano): Orfeo ed Euridice, Act II Scene 2: Ballet Music, "Reigen der seligen Geister" (arr. W. Kempff)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Orphée et Eurydice, Act II: Dance of the Blessed Spirits (arr. W. Kempff for piano): Orfeo ed Euridice, Act II Scene 2: Ballet Music, "Reigen der seligen Geister" (arr. W. Kempff)
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Music for the Royal Fireworks, HWV 351: IV. La rejouissance
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  date published: 2026-06-13T12:47:07Z
audio: Music for the Royal Fireworks, HWV 351: IV. La rejouissance
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Visa vid vindens angar
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  date published: 2026-06-13T12:47:07Z
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Elizabethan Serenade
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7 Morceaux episodiques: No. 7. Les Soirees d'Auteuil, Op. 23: II. Scherzo
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String Quartet in F Major, Op. 3, No. 5, Hob.III:17, "Serenade": II. Serenade: Andante cantabile (attrib. to Hoffstetter)
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  date published: 2026-06-13T12:47:07Z
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Så skimrande var aldrig havet: Sa skimrande var aldrig havet (Never Did the Sea Shimmer Like This) (arr. S. Gustavsson)
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  date published: 2026-06-13T12:47:07Z
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Concerto for Flute & Harp in C Major, K. 299: Concerto for Flute and Harp in C Major, K. 299: II. Andantino
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Symphony No. 53 in D Major, Hob.I:53, "Imperial": II. Andante
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Orchestral Suite No. 2 in B Minor, BWV 1067: Overture (Suite) No. 2 in B Minor, BWV 1067: VII. Badinerie
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Fredmans sanger: No. 64. Fjariln vingad syns pa Haga (arr. J. Eriksson)
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audio: Fredmans sanger: No. 64. Fjariln vingad syns pa Haga (arr. J. Eriksson)
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Bagatelle No. 25 in A Minor, WoO 59 "Für Elise": Bagatelle in A Minor, Op. 59, 'Für Elise'
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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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Frösöblomster I, Op. 16: Frosoblomster (Froso-Flowers), Book 1, Op. 16: No. 4. Till rosorno (To the Roses)
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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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Den förlorade sonen Suite: Den forlorade sonen (The Prodigal Son) Suite: VI. Polka
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  date published: 2026-06-13T12:47:07Z
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Drobnosti (Miniatures), Op. 75a, B. 149: I. Cavatina: Moderato
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  date published: 2026-06-13T12:47:07Z
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Rosita
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Fredmans sanger: No. 31. Opp Amaryllis (arr. J. Eriksson for orchestra)
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String Quintet in E Major, Op. 11, No. 5, G. 275: III. Minuetto (arr. G. Haddock)
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: String Quintet in E Major, Op. 11, No. 5, G. 275: III. Minuetto (arr. G. Haddock)
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2 Elegiac Melodies, Op. 34: No. 2. Last Spring
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by artist: Edvard Grieg
by artist: Norrköping Symphony Orchestra
by artist: Mats Rondin
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genre: classical
genre: late-romantic-era
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
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Brandenburg Concerto No. 4 in G Major, BWV 1049: I. Allegro
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
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Den forsta gang jag sag dig
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Den forsta gang jag sag dig
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Les Patineurs, Op. 183, "The Skater's Waltz"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Les Patineurs, Op. 183, "The Skater's Waltz"
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2 Melodies, Op. 3: No. 1 in F Major (arr. B. Traubas for cello and orchestra)
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  date published: 2026-06-13T12:47:07Z
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Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": IV. Rondo: Allegro
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  date published: 2026-06-13T12:47:07Z
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Bergakungen, Op. 37: Bergakungen (The Mountain King) Suite: IV. Vallflickans dans (Dance of the Shepherd Girl)
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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: 2026-06-13T12:47:07Z
audio: 3 nya dans-poem (3 New Dance Poems): No. 2. Pa graset under lindarna (In the Grass Under)
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Cello Concerto No. 2 in A Major: III. Rondo: Allegretto
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duration: PT4M30S
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by artist: Christian Benda
by artist: Prague Chamber Orchestra
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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: 2026-06-13T12:47:07Z
audio: Cello Concerto No. 2 in A Major: III. Rondo: Allegretto
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La Gioconda *: La Gioconda: Dance of the Hours
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by artist: Slovak Radio Symphony Orchestra
by artist: Ondrej Lenard
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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: 2026-06-13T12:47:07Z
audio: La Gioconda *: La Gioconda: Dance of the Hours
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Sinfonia d'Opera
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by artist: Collegium Philarmonicum Chamber Orchestra
by artist: Gennaro Cappabianca
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Sinfonia d'Opera
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Water Music Suite No. 2 in F Major, HWV 348: Water Music: Suite No. 1 in F Major, HWV 348: VI. Air
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by artist: Capella Istropolitana
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Water Music Suite No. 2 in F Major, HWV 348: Water Music: Suite No. 1 in F Major, HWV 348: VI. Air
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The Gadfly Suite, Op. 97a: V. Barrel-Organ Waltz
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by artist: Ukraine National Symphony Orchestra
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: The Gadfly Suite, Op. 97a: V. Barrel-Organ Waltz
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4 Akvareller (4 Watercolours): No. 1. Idyll (arr. J. Johansson)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: 4 Akvareller (4 Watercolours): No. 1. Idyll (arr. J. Johansson)
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Pavane, Op. 50
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by artist: CSSR State Philharmonic Orchestra, Kosice
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Pavane, Op. 50
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Sophisticated Lady
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by artist: RTE Concert Orchestra
by artist: Richard Hayman
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genre: jazz
genre: cool-jazz
genre: big-band
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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: 2026-06-13T12:47:07Z
audio: Sophisticated Lady
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Uti var hage (arr. J. Johansson)
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Uti var hage (arr. J. Johansson)
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Serenade for Strings, Op. 22, B. 52: Serenade in E Major, Op. 22, B. 52: IV. Larghetto
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Serenade for Strings, Op. 22, B. 52: Serenade in E Major, Op. 22, B. 52: IV. Larghetto
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Lieder ohne Worte, Book 5, Op. 62: Songs without Words (Selection): No. 30 in A Major, Op. 62/6, Spring Song
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Lieder ohne Worte, Book 5, Op. 62: Songs without Words (Selection): No. 30 in A Major, Op. 62/6, Spring Song
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Sonata No. 4 for Violin and Harpsichord in C Minor, BWV 1017: I. Siciliano (arr. J. Dvorak)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Sonata No. 4 for Violin and Harpsichord in C Minor, BWV 1017: I. Siciliano (arr. J. Dvorak)
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Viola Concerto in G Major, TWV 51:G9: I. Largo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Viola Concerto in G Major, TWV 51:G9: I. Largo
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Pastoralsvit, Op. 19: Pastoralsvit (Pastorale Suite), Op. 19: II. Romance
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audio: Pastoralsvit, Op. 19: Pastoralsvit (Pastorale Suite), Op. 19: II. Romance
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Keyboard Concerto in F Minor, BWV 1056: Harpsichord Concerto in F Minor, BWV 1056: II. Largo
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3 Folkliga valser (3 Folk Waltzes): Folklig vals nr 2 (Folk Waltz No. 2)
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Cello Concerto No. 2 in A Major: II. Romance: Andantino
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Violin Sonata No. 17 in C Major, K. 296: II. Andante sostenuto
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Keyboard Sonata in C Minor, K.40/L.375/P.119
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5 Anecdotas: 5 Anecdotas: No. 2. Allegro moderato con grazia
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Ballet Suite No. 1 (arr. L. Atovmyan for orchestra): Ballet Suite No. 1: III. Romance (The Limpid Stream) (arr. L. Atovmyan)
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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: Ballet Suite No. 1 (arr. L. Atovmyan for orchestra): Ballet Suite No. 1: III. Romance (The Limpid Stream) (arr. L. Atovmyan)
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Sonata for Strings No. 3 in C Major: III. Moderato
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by artist: Hungarian Virtuosi
by artist: Tamás Benedek
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genre: classical
genre: opera
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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: Sonata for Strings No. 3 in C Major: III. Moderato
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Faust: Faust, Ballet Music: V. Les Troyennes: Moderato con moto
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by artist: Slovak Radio Symphony Orchestra
by artist: Ondrej Lenard
in album: Det Goda Livet
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genre: opera
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additional property: OTSBitcoinBlockVerifyURL
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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: Faust: Faust, Ballet Music: V. Les Troyennes: Moderato con moto
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Johann Sebastian Bach : Concertos For Two, Three And Four Harpsichords
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date published: 1998-03-23
track: Concerto For 2 Keyboards In C Minor, BWV 1060: I. Allegro
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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: Concerto For 2 Keyboards In C Minor, BWV 1060: I. Allegro
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track: Concerto For 2 Keyboards In C Minor, BWV 1060: II. Largo Ovvero Adagio
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T15:41:10Z
  audio: Concerto For 2 Keyboards In C Minor, BWV 1060: II. Largo Ovvero Adagio
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track: Concerto For 2 Keyboards In C Minor, BWV 1060: III. Allegro
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  audio: Concerto For 2 Keyboards In C Minor, BWV 1060: III. Allegro
track: Concerto For 2 Keyboards In C Major, BWV 1061: I. - Allegro
track: Concerto For 2 Keyboards In C Major, BWV 1061: II. Adagio
track: Concerto For 2 Keyboards In C Major, BWV 1061: III. Vivace
track: Concerto For 2 Keyboards In C Minor, BWV 1062: I. - Allegro
track: Concerto For 2 Keyboards In C Minor, BWV 1062: II. Andante E Piano
track: Concerto For 2 Keyboards In C Minor, BWV 1062: III. Allegro Assai
track: Concerto For 3 Harpsichords In C Major, BWV 1064: I. - Allegro
track: Concerto For 3 Harpsichords In C Major, BWV 1064:II. Adagio
track: Concerto For 3 Harpsichords In C Major, BWV 1064: III. Allegro
track: Concerto For 4 Harpsichords In A Minor, BWV 1065: I. - Allegro
track: Concerto For 4 Harpsichords In A Minor, BWV 1065: II. Largo
track: Concerto For 4 Harpsichords In A Minor, BWV 1065: III. Allegro

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OTSVerificationAPI
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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
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe881d3618affba30566168cd658276e61a50fcff759706309e178c00971625c2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI199648703.
date published: 2026-06-13T12:47:07Z

Concerto For 2 Keyboards In C Minor, BWV 1060: III. Allegro
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additional property: Mode (Major/Minor)
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Concerto For 2 Keyboards In C Major, BWV 1061: I. - Allegro
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by artist: Johann Sebastian Bach
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Concerto For 2 Keyboards In C Major, BWV 1061: I. - Allegro
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    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.095
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.681
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.653
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Concerto For 2 Keyboards In C Major, BWV 1061: II. Adagio
type: MusicRecording
duration: PT4M55S
duration ms: 295973
explicit: false
by artist: Cologne Chamber Orchestra
by artist: Gerald Hambitzer
by artist: Christoph Anselm Noll
by artist: Johann Sebastian Bach
in album: Johann Sebastian Bach : Concertos For Two, Three And Four Harpsichords
  type: MusicAlbum
  date published: 1998-03-23
isrc code: HKI199648705
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T20:51:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd3eb0d8efdb764206232b469b8420604917e1750b8b0d4e1263a8311becc69a1
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/HKI199648705
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 0xd3eb0d8efdb764206232b469b8420604917e1750b8b0d4e1263a8311becc69a1. 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/HKI199648705.
  date published: 2026-06-13T17:25:41Z
audio: Concerto For 2 Keyboards In C Major, BWV 1061: II. Adagio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.315
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.381
  additional property: Energy
    type: PropertyValue
    value: 0.103
  additional property: Speechiness
    type: PropertyValue
    value: 0.028
  additional property: Acousticness
    type: PropertyValue
    value: 0.938
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.076
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.401
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.542
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Concerto For 2 Keyboards In C Major, BWV 1061: III. Vivace
type: MusicRecording
duration: PT5M57S
duration ms: 357826
explicit: false
by artist: Cologne Chamber Orchestra
by artist: Christoph Anselm Noll
by artist: Gerald Hambitzer
by artist: Johann Sebastian Bach
in album: Johann Sebastian Bach : Concertos For Two, Three And Four Harpsichords
  type: MusicAlbum
  date published: 1998-03-23
isrc code: HKI199648706
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T04:18:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8d064c705a037967357d4f1e65c1188c1c5a27d36fe914f9f577c1d24bcfea8d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199648706
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d064c705a037967357d4f1e65c1188c1c5a27d36fe914f9f577c1d24bcfea8d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HKI199648706.
  date published: 2026-06-13T13:32:09Z
audio: Concerto For 2 Keyboards In C Major, BWV 1061: III. Vivace
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.429
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.311
  additional property: Energy
    type: PropertyValue
    value: 0.292
  additional property: Speechiness
    type: PropertyValue
    value: 0.027
  additional property: Acousticness
    type: PropertyValue
    value: 0.777
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.104
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.822
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.987
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Concerto For 2 Keyboards In C Minor, BWV 1062: I. - Allegro
type: MusicRecording
duration: PT3M27S
duration ms: 207973
explicit: false
by artist: Cologne Chamber Orchestra
by artist: Michael Behringer
by artist: Robert Hill
by artist: Johann Sebastian Bach
in album: Johann Sebastian Bach : Concertos For Two, Three And Four Harpsichords
  type: MusicAlbum
  date published: 1998-03-23
isrc code: HKI199648707
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T09:50:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfcd660ae1f4b6b4e6f7d7b8decdf43feeea455e07d854498e1c5b321c6cf7c49
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199648707
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
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 0xfcd660ae1f4b6b4e6f7d7b8decdf43feeea455e07d854498e1c5b321c6cf7c49. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI199648707.
  date published: 2026-06-13T12:47:07Z
audio: Concerto For 2 Keyboards In C Minor, BWV 1062: I. - Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.025
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.479
  additional property: Energy
    type: PropertyValue
    value: 0.363
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.628
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.115
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.825
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.757
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Concerto For 2 Keyboards In C Minor, BWV 1062: II. Andante E Piano
type: MusicRecording
duration: PT6M7S
duration ms: 367160
explicit: false
by artist: Cologne Chamber Orchestra
by artist: Michael Behringer
by artist: Robert Hill
by artist: Johann Sebastian Bach
in album: Johann Sebastian Bach : Concertos For Two, Three And Four Harpsichords
  type: MusicAlbum
  date published: 1998-03-23
isrc code: HKI199648708
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T10:04:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe6febb09e2645b62579de3bbe951f851967b8857c720f75ce51fceb6b652c714
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199648708
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
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 0xe6febb09e2645b62579de3bbe951f851967b8857c720f75ce51fceb6b652c714. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI199648708.
  date published: 2026-06-13T12:47:07Z
audio: Concerto For 2 Keyboards In C Minor, BWV 1062: II. Andante E Piano
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.604
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.247
  additional property: Energy
    type: PropertyValue
    value: 0.08
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.486
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.188
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.203
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.355
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Concerto For 2 Keyboards In C Minor, BWV 1062: III. Allegro Assai
type: MusicRecording
duration: PT4M29S
duration ms: 269840
explicit: false
by artist: Cologne Chamber Orchestra
by artist: Robert Hill
by artist: Michael Behringer
by artist: Johann Sebastian Bach
in album: Johann Sebastian Bach : Concertos For Two, Three And Four Harpsichords
  type: MusicAlbum
  date published: 1998-03-23
isrc code: HKI199648709
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T09:02:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xee06b6448dc41756517978b4d99a65d6b4e9a3d59f2a084003e2a0cf70ab62db
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199648709
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
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 0xee06b6448dc41756517978b4d99a65d6b4e9a3d59f2a084003e2a0cf70ab62db. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI199648709.
  date published: 2026-06-13T12:47:07Z
audio: Concerto For 2 Keyboards In C Minor, BWV 1062: III. Allegro Assai
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.526
  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: 0.487
  additional property: Energy
    type: PropertyValue
    value: 0.404
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.633
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.12
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.884
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.118
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Concerto For 3 Harpsichords In C Major, BWV 1064: I. - Allegro
type: MusicRecording
duration: PT6M18S
duration ms: 378066
explicit: false
by artist: Cologne Chamber Orchestra
by artist: Gerald Hambitzer
by artist: Robert Hill
by artist: Christoph Anselm Noll
by artist: Johann Sebastian Bach
in album: Johann Sebastian Bach : Concertos For Two, Three And Four Harpsichords
  type: MusicAlbum
  date published: 1998-03-23
isrc code: HKI199648710
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T13:43:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x30f71d7df3b099548d0acfdd85fd02bdd9e3af1cda28044fc7c1fd656db979c6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199648710
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f71d7df3b099548d0acfdd85fd02bdd9e3af1cda28044fc7c1fd656db979c6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HKI199648710.
  date published: 2026-07-02T03:30:09Z
audio: Concerto For 3 Harpsichords In C Major, BWV 1064: I. - Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.096
  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: 0.435
  additional property: Energy
    type: PropertyValue
    value: 0.326
  additional property: Speechiness
    type: PropertyValue
    value: 0.027
  additional property: Acousticness
    type: PropertyValue
    value: 0.736
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.162
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.784
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.196
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Concerto For 3 Harpsichords In C Major, BWV 1064:II. Adagio
type: MusicRecording
duration: PT5M17S
duration ms: 317893
explicit: false
by artist: Cologne Chamber Orchestra
by artist: Christoph Anselm Noll
by artist: Gerald Hambitzer
by artist: Robert Hill
by artist: Johann Sebastian Bach
in album: Johann Sebastian Bach : Concertos For Two, Three And Four Harpsichords
  type: MusicAlbum
  date published: 1998-03-23
isrc code: HKI199648711
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T13:43:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x761cb11b030cdce9bbb00c7156becebd2cd903876c3b5333d0bfe1e974eb9cdc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199648711
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761cb11b030cdce9bbb00c7156becebd2cd903876c3b5333d0bfe1e974eb9cdc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HKI199648711.
  date published: 2026-07-02T03:30:09Z
audio: Concerto For 3 Harpsichords In C Major, BWV 1064:II. Adagio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.843
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.3
  additional property: Energy
    type: PropertyValue
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Flute Favourites
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The Essential Mozart
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Purple Classics Presents: Quiet Time – The Music of Mozart
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The Naxos Mozart Album **
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Stor musik för små öron
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Mozart: Flute Concertos Nos. 1 and 2 / Concerto for Flute and Harp
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Zelenka: Lamentationes Jeremiae Prophetae
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Mozart for Meditation
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  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 0xf5992b999385fefeb30bae7b80262c66b4045beacab2db15051fb3ddf9920e61. 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/HKI190325105.
  date published: 2026-07-08T03:22:41Z
audio: Concerto for Flute & Harp in C Major, K. 299: II. Andantino
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 91.554
  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: 0.188
  additional property: Energy
    type: PropertyValue
    value: 0.032
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.972
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.707
  additional property: Liveness
    type: PropertyValue
    value: 0.095
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.109
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.104
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major