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genre: classical
genre: classical piano
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album: Beethoven - Piano Sonatas
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  date published: 1996-07-01
album: The Great Masters: Für Elise
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  date published: 2017-02-18
album: Green Edition - Scarlatti & Locatelli: Keyboard Sonatas & 12 Concerti grossi à 4 e à 5, No. 2
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  date published: 2016-11-24
album: Green Edition - Locatelli & Scarlatti: L'arte del violino & Keyboard Sonatas
  type: MusicAlbum
  date published: 2016-11-24
album: Paganini: Violin Concerto No. 2 & Rachmaninov: Rhapsody on a Theme of Paganini
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album: I Do! - Classical Wedding Music
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  track: A Midsummer Night's Dream, Op. 61: IX. Wedding March
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  track: Music for the Royal Fireworks, HWV 351: III. La réjouissance
  track: Rinaldo, HWV 7: "Lascia ch'io pianga"
  track: Motet in D Major for Choir and Orchestra, K. 618: Ave verum corpus
  track: An der schönen blauen Donau (On the Beautiful Blue Danube), Op. 314
  track: La traviata, Act 1: "Libiamo, ne' lieti calici" (Live)
  track: Così fan tutte, K. 588, Act 1: "Soave sia il vento"
album: Classical: Love
album: Baroque Masterminds
album: 100 Most Essential Classical Favorites
album: Classique Zen
album: 100 Most Relaxing Classical Music In The Universe
album: 50 Most Essential Beethoven
album: The 100 Most Essential Pieces of Classical Music

Bagatelle in A Minor, WoO 59 "Für Elise"
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Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio Cantabile
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27: 2 "Moonlight": I. Adagio Sostenuto
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Rêve d'amour No. 3, Op. 62
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audio: Rêve d'amour No. 3, Op. 62
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Piano Sonata No. 14 In C-Sharp Minor Op 27, No. 2 "Moonlight": I. Adagio Sostenuto
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by artist: Dubravka Tomšič
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genre: classical-piano
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  date published: 2026-07-06T07:53:57Z
audio: Piano Sonata No. 14 In C-Sharp Minor Op 27, No. 2 "Moonlight": I. Adagio Sostenuto
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27, No. 2 "Moonlight": I. Adagio Sostenuto - Excerpt
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  date published: 2026-06-13T12:53:06Z
audio: Piano Sonata No. 14 in C-Sharp Minor, Op. 27, No. 2 "Moonlight": I. Adagio Sostenuto - Excerpt
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Music for the Royal Fireworks, HWV 351: III. La réjouissance
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Music for the Royal Fireworks, HWV 351: III. La réjouissance
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Rinaldo, HWV 7: "Lascia ch'io pianga"
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  date published: 2026-07-02T03:30:09Z
audio: Rinaldo, HWV 7: "Lascia ch'io pianga"
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Motet in D Major for Choir and Orchestra, K. 618: Ave verum corpus
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audio: Motet in D Major for Choir and Orchestra, K. 618: Ave verum corpus
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An der schönen blauen Donau (On the Beautiful Blue Danube), Op. 314
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La traviata, Act 1: "Libiamo, ne' lieti calici" (Live)
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Così fan tutte, K. 588, Act 1: "Soave sia il vento"
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Classical: Love
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track: Suite from "The Gadfly", Op. 97a: VIII. Romance
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track: Concerto No. 2 in C Minor for Piano and Orchestra, Op. 18: II. Adagio sostenuto
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track: Concerto in A Major for Clarinet and Orchestra, K. 622: II. Adagio
track: La Traviata: Prelude to Act I
track: Trois Gnossiennes: Gnossienne No. 1
track: Salut d'Amour

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OpenTimestamps Proof of Existence
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Concerto No. 2 in C Minor for Piano and Orchestra, Op. 18: II. Adagio sostenuto
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Concerto in A Major for Clarinet and Orchestra, K. 622: II. Adagio
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track: Solomon, HWV 67: The Arrival of the Queen of Sheba
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Sonata No. 12 in D Minor, Op. 5, "La Follia": Variations over an old Spanish Sarabande
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Solomon, HWV 67: The Arrival of the Queen of Sheba
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Trumpet Voluntary in D Major (The Prince of Denmark's March)
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Concerto in D Minor for Guitar and Orchestra, FWV L:d 1: III. Un poco allegro
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Le quattro stagioni (The Four Seasons), Op. 8 - Concerto No. 3 in F Major, RV 293, "L'autunno" (Autumn): I. Ballo e canto de villanelli: Allegro
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Stabat Mater in F Minor: Introduction
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Libro delle Canzoni: Toccata No. 10
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Concerto in G Major for Viola and Orchestra, TWV 51:G9: I. Largo
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Canon in D Major
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Concerto grosso in D Major, Op. 6,4: I. Adagio - Allegro
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Concerto in D Major for Trumpet and Organ: I. Pomposo
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Le quattro stagioni (The Four Seasons), Op. 8 - Concerto No. 4 in F Minor, RV 297, "L'inverno" (Winter): II. Largo
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100 Most Essential Classical Favorites
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track: Lohengrin: Bridal Chorus
track: Siegfried Idyll
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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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date published: 2026-07-02T03:30:09Z

The Seasons, Op. 37b: VI. June: Barcarolle
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Lohengrin: Bridal Chorus
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by artist: Latvian State Symphony Orchestra
by artist: Vilumanis Choir Latvija
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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: Lohengrin: Bridal Chorus
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Siegfried Idyll
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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: Siegfried Idyll
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Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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Ave Maria (after J.S. Bach)
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  date published: 2026-06-13T17:25:41Z
audio: Ave Maria (after J.S. Bach)
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Piano Concerto No. 3 in D Minor, Op. 30, III: Finale: Alla breve
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additional property: OTSVerifyInstructions
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  date published: 2026-06-13T17:25:41Z
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Requiem: Dies Irae - Tuba Mirum
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  date published: 2026-06-13T17:25:41Z
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Peer Gynt Suite No. 1, Op. 46: I. Morning Mood
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The Four Seasons (Le Quattro Stagioni) Concerto for Violin in E Major, RV 269, Op. 8: 1. "Spring": I. Allegro
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Adagio in G Minor for Strings and Organ
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Nocturne in E-Flat Major, Op. 9, No. 2
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Leonore Overture No. 3, Op. 72b
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Clarinet Concerto in A Major, KV 622: II. Adagio
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Tristan und Isolde, WWV 90: Liebestod
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String Quartet No. 1 In B-Flat Major, Op. 1: III. Adagio
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subject of: OpenTimestamps Proof of Existence
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Swan Lake Suite, Op. 20: Scéne: Moderato
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subject of: OpenTimestamps Proof of Existence
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The Marriage of Figaro, KV 492: Overture
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subject of: OpenTimestamps Proof of Existence
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audio: The Marriage of Figaro, KV 492: Overture
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Requiem Mass in D Minor, K. 626: VIII. Lacrimosa
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Requiem Mass in D Minor, K. 626: VIII. Lacrimosa
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Mass in B Minor, BWV 232, Credo: VI. Et resurrexit
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audio: Mass in B Minor, BWV 232, Credo: VI. Et resurrexit
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Peer Gynt, Suite No. 1, Op. 46: IV. In the Hall of the Mountain King: Alla marcia e molto marcato: Piu ivo
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  date published: 2026-06-13T15:41:10Z
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Mascagni - Cavalleria rusticana: Intermezzo
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Quintet in A Major, Op. 114 "The Trout": II. Andante
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Etude in E Major, Op. 10, No. 3, "Tristesse"
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Brandenburg Concerto No. 5, BWV 1050: I. Allegro
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Well Tempered Clavier, Book I, BWV 846, Prelude and Fugue in C Major
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Concerto for Trumpet and Orchestra in E-Flat Major, III. Rondo
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Brandenburg Concerto No. 3 in G Major, BWV 1048: I. Allegro
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Piano Concerto No. 2 in C Minor, Op. 18: I. Moderato; Allegro
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Toccata and Fugue in D Minor, BWV 565
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Concerto Grosso in G Minor, Op. 6: 8 "Christmas Concerto": II. Allegro
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Symphony No. 5 in C Minor, Op. 67, "Fate": I. Allegro con Brio
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Serenade for Strings in C Major, Op. 48: III. Élégie: Larghetto elegiaco
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Concerto for Viola and Orchestra in G Major: I. Largo
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Rhapsody on a Theme of Paganini in A Minor for Piano & Orchestra, Op. 43
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"Jesu, Joy of Man's Desiring" from Mund und That und Leben BWV 147
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Concerto for Piano and Orchestra No. 21 in C Major, K. 467 "Elvira Madigan": II. Andante
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Symphony No. 6 in F Major, "Pastoral", Op. 68: II. Scene by the Brook - Andante molto mosso
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Suite No. 1 in G Major, BWV 1007: I. Prelude
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Hungarian Dances: No. 5 in G Minor: Allegro
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Symphony No. 94 in G Major, "Surprise": II. Andante
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On the Beautiful Blue Danube (An Der Schönen Blauen Donau), Op. 314
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Symphony No. 40 in G Minor, K. 550 "Great": I. Allegro molto
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Piano Concerto No. 2 in F Minor, Op. 21: III.Allegro vivace
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Goldberg Variations BWV 988: Aria
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Serenade No. 13 in G Major, K. 525 "Eine Kleine Nachtmusic": I. Allegro
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Violin Concerto in D Major, Op. 61: III. Rondo. Allegro
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Classique Zen
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track: Rêve d'amour No. 3, Op. 62
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  audio: Adagio
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Sonate No. 14: No. 1, Au clair de Lune-Adagio sostenuto
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2507cad4b428ec09ef0a0d9e41c09f4738523784f8b7771c2b511db278619c17
additional property: OTSHash
additional property: OTSBitcoinBlock
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  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/FR6F31368180
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 0x2507cad4b428ec09ef0a0d9e41c09f4738523784f8b7771c2b511db278619c17. 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/FR6F31368180.
  date published: 2026-06-13T13:32:09Z
audio: Sonate No. 14: No. 1, Au clair de Lune-Adagio sostenuto
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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Intermezzo, Op. 117: No.2
type: MusicRecording
duration: PT3M39S
duration ms: 219240
explicit: false
by artist: Ernst Gröschel
in album: Classique Zen
  type: MusicAlbum
  date published: 2013-09-09
isrc code: FR6F31368190
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xc9e32aa67556a5f13695184debfb392d69fbf5b7c0bc4e41c84b044590dabd08
additional property: OTSHash
additional property: OTSBitcoinBlock
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  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/FR6F31368190
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 0xc9e32aa67556a5f13695184debfb392d69fbf5b7c0bc4e41c84b044590dabd08. 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/FR6F31368190.
  date published: 2026-07-08T03:22:41Z
audio: Intermezzo, Op. 117: No.2
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 99.514
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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    value: 0.059
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
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    value: 0.993
  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Gymnopédie No. 1
type: MusicRecording
duration: PT2M41S
duration ms: 161053
explicit: false
by artist: Pierre Barreau
in album: Classique Zen
  type: MusicAlbum
  date published: 2013-09-09
isrc code: FR6F31368220
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xf8a68a01f0d575637f522425814a72bf330c1156d2a07874927c79029c02870c
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/FR6F31368220
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 0xf8a68a01f0d575637f522425814a72bf330c1156d2a07874927c79029c02870c. 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/FR6F31368220.
  date published: 2026-07-02T03:30:09Z
audio: Gymnopédie No. 1
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.183
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Ave Maria (arrangement sur le Prélude No. 1 de J-S. Bach)
type: MusicRecording
duration: PT3M6S
duration ms: 186659
explicit: false
by artist: Maggy Villette
by artist: José Arrué
in album: Classique Zen
  type: MusicAlbum
  date published: 2013-09-09
isrc code: FR6F31368310
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T07:51:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x94fccf389505a1dd170c644390f44c7b0743c06cc17ba510e1fc0ddc67cc5df3
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/FR6F31368310
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 0x94fccf389505a1dd170c644390f44c7b0743c06cc17ba510e1fc0ddc67cc5df3. 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/FR6F31368310.
  date published: 2026-07-08T03:20:19Z
audio: Ave Maria (arrangement sur le Prélude No. 1 de J-S. Bach)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.31
  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: 0.247
  additional property: Energy
    type: PropertyValue
    value: 0.055
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.077
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.11
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.611
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Danse Hongroise No. 7
type: MusicRecording
duration: PT1M48S
duration ms: 108853
explicit: false
by artist: Orchestre Symphonique des Studios de Nuremberg
by artist: Alfred Scholz
in album: Classique Zen
  type: MusicAlbum
  date published: 2013-09-09
isrc code: FR6F31368390
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:12:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x21eae2c688946fc744f27b3c681ea3ff5eaadff9272431fd215c4bc0c0bfc8a1
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/FR6F31368390
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 0x21eae2c688946fc744f27b3c681ea3ff5eaadff9272431fd215c4bc0c0bfc8a1. 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/FR6F31368390.
  date published: 2026-07-08T03:53:27Z
audio: Danse Hongroise No. 7
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.103
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.488
  additional property: Energy
    type: PropertyValue
    value: 0.076
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.859
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.424
  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
    value: Major

Messe de Requiem en ré mineur, KV 626, Requiem aeternam
type: MusicRecording
duration: PT5M25S
duration ms: 325266
explicit: false
by artist: Orchestre de la Radio Télévision de Lithuanie
by artist: Arvid Jansons
in album: Classique Zen
  type: MusicAlbum
  date published: 2013-09-09
isrc code: FR6F31368440
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:25:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9997475910a79034361284eddc561f8c24ac2d3f5f0fe32e1f514bf434f5a6ca
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/FR6F31368440
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 0x9997475910a79034361284eddc561f8c24ac2d3f5f0fe32e1f514bf434f5a6ca. 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/FR6F31368440.
  date published: 2026-07-08T08:56:20Z
audio: Messe de Requiem en ré mineur, KV 626, Requiem aeternam
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
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Quatuor à cordes No.13: Rosamunde - Andante
type: MusicRecording
duration: PT7M9S
duration ms: 429186
explicit: false
by artist: Quartette Caspar da Salo
in album: Classique Zen
  type: MusicAlbum
  date published: 2013-09-09
isrc code: FR6F31368450
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T10:49:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x530593c1e845d71ed2b2992fc07def6e10335ced7fafff00f0d9f64718911ec5
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/FR6F31368450
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 0x530593c1e845d71ed2b2992fc07def6e10335ced7fafff00f0d9f64718911ec5. 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/FR6F31368450.
  date published: 2026-07-08T08:56:20Z
audio: Quatuor à cordes No.13: Rosamunde - Andante
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Bagatelle No. 59, Lettre à Elise
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duration: PT2M43S
duration ms: 163226
explicit: false
by artist: Jean-Luc Barreau
in album: Classique Zen
  type: MusicAlbum
  date published: 2013-09-09
isrc code: FR6F31368500
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c0a4b692a658f7cc61b44c2407812c16c04f0d0a1a497190a816be8d172911c
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/FR6F31368500
additional property: OTSTimestamp
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  value: 2026-07-08T03:53:27Z
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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0a4b692a658f7cc61b44c2407812c16c04f0d0a1a497190a816be8d172911c. 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/FR6F31368500.
  date published: 2026-07-08T03:53:27Z
audio: Bagatelle No. 59, Lettre à Elise
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Impromptu No. 4, Fantasie-Impromptu
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duration: PT4M34S
duration ms: 274960
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by artist: Peter Schmalfuss
in album: Classique Zen
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  date published: 2013-09-09
genre: classical
genre: classical-piano
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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
  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: 2026-07-08T03:20:19Z
audio: Impromptu No. 4, Fantasie-Impromptu
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Nocturne pour piano No. 20, Op. posthume 1: No. 16
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by artist: Margulis Vitalij
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  date published: 2013-09-09
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additional property: OTSVerificationAPI
  type: PropertyValue
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea90ff26dd4c0e3a8cc26109df8c512b260f61b8a458bf504464d19f3ce80a0. 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/FR6F31368530.
  date published: 2026-07-08T03:22:41Z
audio: Nocturne pour piano No. 20, Op. posthume 1: No. 16
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Symphonie No. 9, Nouveau Monde - Largo (extrait)
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duration: PT4M4S
duration ms: 244746
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by artist: Orchestre National de la Radio Autrichienne
by artist: Milan Horvat
in album: Classique Zen
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  date published: 2013-09-09
isrc code: FR6F31368540
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additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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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: 2026-07-08T03:22:41Z
audio: Symphonie No. 9, Nouveau Monde - Largo (extrait)
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Nocturne pour piano en si bémol mineur No. 1, Op. 9
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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: 2026-07-08T08:56:20Z
audio: Nocturne pour piano en si bémol mineur No. 1, Op. 9
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Peer Gynt Suite No. 1, La Mort d'Ase (extrait)
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duration: PT4M0S
duration ms: 240480
explicit: false
by artist: Orchestre Philharmonique Slovaque
by artist: Libor Pešek
in album: Classique Zen
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  date published: 2013-09-09
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additional property: OTSHash
additional property: OTSBitcoinBlock
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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
  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: 2026-07-08T03:20:19Z
audio: Peer Gynt Suite No. 1, La Mort d'Ase (extrait)
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Le Lac des Cygnes : La Danse des Petits Cygnes
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duration ms: 94426
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by artist: Alfred Scholz
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Le Lac des Cygnes : La Danse des Petits Cygnes
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Sarabande en ré mineur, HWV 437
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additional property: OTSHash
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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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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The Four Seasons, Concerto No. 4 In F Minor (L'inverno / Winter) RV. 297 (Op. 8, No. 4): II. Largo
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by artist: Royal Philharmonic Orchestra
by artist: Frank Shipway
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:16:32Z
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Prelude To The Afternoon Of A Faun (Prelude A I'apres-Midi D'un Faune)
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by artist: Alfred Scholz
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Songs Without Words, Op. 62: No. 6 in A Major: Molto allegro vivace "Fruhlinglied" (Spring Melody)
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by artist: Ilmar Lapinsch
by artist: Latvian Philharmonic Chamber Orchestra
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Songs Without Words, Op. 62: No. 6 in A Major: Molto allegro vivace "Fruhlinglied" (Spring Melody)
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Dance Of The Blessed Spirits
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by artist: Munich Chamber Orchestra
by artist: Hanspeter Gmür
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popularity: 8
genre: classical
genre: opera
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Dance Of The Blessed Spirits
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Piano Concerto No. 21 In C K. 467: II. Andante
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by artist: Alberto Lizzio
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popularity: 3
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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. 21 In C K. 467: II. Andante
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Water Music Suite No. 1 In F Major, HV 348: V. Air
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T01:26:17Z
audio: Water Music Suite No. 1 In F Major, HV 348: V. Air
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Menuetto
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by artist: Vlastimil Horak
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Well Tempered Klavier, Book I, No. 22 BWV 867
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Ave Maria
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The Four Seasons: Concerto No. 1 In E Major, Op. 8, RV 269, "Spring": I. Allegro (Danza Pastorale)
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Kinderszenen, Op. 15: No. 7. Traumerei
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Ballade No. 1 In G Minor, Op. 23
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Symphony No. 5 In C Minor, Op. 67 "Fate": II. Andante Con Moto
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Adagio in G Minor
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Carnival Of The Animals: The Swan
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Valse Triste, Op 44
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Pavane For A Dead Princess
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Piano Concerto No. 2 In F Minor Op 21: II. Larghetto
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50 Most Essential Beethoven
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Concerto for Piano and Orchestra No. 5 in E Flat Major, 'Emperor', Op. 73: I. Allegro
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Concerto for Piano and Orchestra No. 5 in E Flat Major, 'Emperor', Op. 73: II. Adagio un poco Mosso
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Romance in F Major, Op. 50
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Concerto for Piano and Orchestra No. 5 in E Flat Major, 'Emperor', Op. 73: III. Rondo (Allegro)
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Violin Sonata No. 4 in A Minor, Op. 23: I. Allegro Molto
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The 100 Most Essential Pieces of Classical Music
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Symphony No. 5 in C Minor, Op. 67 "Fate": I. Allegro con brio
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Canon and Gigue in D Major, P. 37: I. Canon
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The Four Seasons, Violin Concerto No. 4 in F Minor, RV 297 "Winter": II. Largo
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Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": I. Allegro
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subject of: OpenTimestamps Proof of Existence
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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subject of: OpenTimestamps Proof of Existence
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The Nutcracker, Op. 71, Act I: II. March
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The Nutcracker, Op. 71, Act II: XIVc. Var. 2, Dance of the Sugar-Plum Fairy
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Adagio for Strings, Op. 11
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Symphony No. 94 in G Major, Hob. I:94 "Surprice": II. Andante
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5 Morceaux de Fantasie, Op. 3: No. 2, Prélude in C-Sharp Minor "The Bells of Moscow"
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Brandenburg Concerto No. 3 in G Major, BWV 1048: III. Allegro
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L'Arlesienne Suite No. 1, WD 40: I. Prelude
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Also Sprach Zarathustra, Op. 30: I. Introduction
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Prince Igor, Act III: Polovtsian Dances
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3 Gymnopédies: I. Lent et douloureux
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Symphony No. 40 in G Minor, K. 550: I. Molto Allegro
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Piano Concerto No. 1 in B-Flat Minor, Op. 23: I. Allegro non troppo e molto maestoso - Allegro con spirito
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Die Walkürie, WWV 86b, Act III: Ride of the Valkyries
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subject of: OpenTimestamps Proof of Existence
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Concerto for 2 Violins in D Minor, BWV 1043: I. Vivace
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subject of: OpenTimestamps Proof of Existence
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Boléro, M. 81
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audio: Boléro, M. 81
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Piano Concerto No. 21 in C Major, K. 467: II. Andante
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Peer Gynt Suite No. 1, Op. 46: IV. In the Hall of the Mountain King
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audio: Peer Gynt Suite No. 1, Op. 46: IV. In the Hall of the Mountain King
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String Quintet in E Major, G. 282: III. Minuetto - Trio
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