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subject of: OpenTimestamps Proof of Existence
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album: Tchaikovski: Symphonie 6 "Pathétique"-Capriccio italien
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  date published: 2006-01-01
album: Tchaikovski: Symphonie 4-Borodine: Dans les steppes de l'Asie centrale-Moussorgski: Une nuit sur le mont chauve
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  date published: 2006-01-01
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    by artist: Manuel Rosenthal
    by artist: Orchestre de l'Opéra National de Paris
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      date published: 2006-01-01
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    genre: late-romantic-era
    genre: early-modern-classical
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    additional property: OTSVerifyInstructions
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-22T12:33:25Z
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album: Concertos Pour Violon
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-31T23:30:38Z
    audio: Violin Concerto In E Minor, Op. 64, MWV O14: 1. Allegro molto appassionato
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album: Dream with Mozart
album: Best of Beethoven
album: 40 Most Beautiful Love Themes
album: Albert: Tiefland (Recorded 1953)
album: Jolivet: Concerto pour basson, orchestre à cordes, harpe et piano (Mono Version)
album: 18th Century Orchestra: Beethoven
album: Stravinsky: Petrouchka
album: Messiaen: Visions de l'Amen, Cantéyodjayâ, Oiseaux exotiques
album: Stravinski - Messiaen - Debussy - Jolivet
album: Wagner: Ouvertures Et Préludes Vol.2
album: Symphonie 9 "Du Nouveau Monde"-Sérénades Pour Cordes
album: Symphonie 2-Concerto Pour Violon
album: Stravinski: Pétrouchka-Le sacre du printemps
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album: Mozart-Concertos Pour Piano n°21 et 9
album: Bruch: Violin Concerto No. 1, Op. 26 - Mendelssohn: Violin Concerto, Op. 64
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album: Wagner: Grandes pages opératiques (Mono Version)
album: Tchaikovsky: Symphony No. 5 (Mono Version)
album: Tchaikovsky: Symphonie No. 4 (Stereo Version)
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album: Haydn: Symphonies Nos. 73 "La chasse" & 88 (Mono Version)
album: Stravinsky: Le sacre du printemps (Mono Version)
album: Les concerts du Domaine musical : Troisième concert de la saison 1956, au Théâtre Marigny (Collection trésors, live, mono version)
album: Stravinsky: Suite from The Firebird & Symphony in Three Movements (Mono Version)
album: Prokofiev: Concerto pour violoncelle, Op. 58 (Mono Version)
album: Schoenberg: Suite, Op. 29 / Henze: Concerto per il Marigny / Webern: Variations, Op. 27
album: 'Sonata facile' and other works - Mozart
album: Tchaikovsky Chill & Relax
album: Stravinsky: Le Sacre Du Printemps 100th Anniversary Collectors Edition
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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
  audio: Concerto for Flute, Harp, and Orchestra in C Major, K. 299: 2b. Andantino - Pt. 2
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-30T12:51:24Z
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  subject of: OpenTimestamps Proof of Existence
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track: Strauss, Johann II : An der schönen blauen Donau Op.314 [Blue Danube Waltz] [Excerpt]
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track: Bach, JS: Keyboard Concerto No. 3 in D Minor, BWV 974: II. Adagio (After Marcello's Oboe Concerto, S. Z799)
track: Rachmaninov: Symphony No. 2 in E Minor, Op. 27: III. Adagio (Excerpt)

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Khachaturian: Suite from Spartacus No. 2: I. Adagio of Spartacus and Phrygia (Excerpt)
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Shostakovich: Piano Concerto No. 2 in F Major, Op. 102: II. Andante (Excerpt)
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Elgar: Cello Concerto in E Minor, Op. 85: I. Adagio - Moderato
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Debussy: Prélude à l'après-midi d'un faune, CD 87, L. 86 (Excerpt)
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Schubert: String Quintet in C Major, Op. 163, D. 956: II. Adagio (Excerpt)
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subject of: OpenTimestamps Proof of Existence
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Bruch: Violin Concerto No. 1 in G Minor, Op. 26: II. Adagio (Excerpt)
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Tchaikovsky: Swan Lake, Op. 20, Act II: No. 10, Scene. Moderato (Excerpt)
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subject of: OpenTimestamps Proof of Existence
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Chopin: Piano Concerto No. 2 in F Minor, Op. 21: II. Larghetto (Excerpt)
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Mahler: Symphony No. 5 in C-Sharp Minor: IV. Adagietto. Sehr langsam (Excerpt)
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Puccini : Manon Lescaut : Act 3 Intermezzo
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-30T14:36:16Z
audio: Puccini : Manon Lescaut : Act 3 Intermezzo
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Mozart: Clarinet Concerto in A Major, K. 622: II. Adagio (Excerpt)
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duration: PT2M16S
duration ms: 136773
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Jacques Lancelot
by artist: Jean-François Paillard
by artist: Orchestre de chambre Jean-François Paillard
in album: 40 Most Beautiful Love Themes
  type: MusicAlbum
  date published: 2007-04-24
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: FRZ206400011
additional property: CopyrightID
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Mozart: Clarinet Concerto in A Major, K. 622: II. Adagio (Excerpt)
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Beethoven: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco mosso
type: MusicRecording
duration: PT8M14S
duration ms: 494960
explicit: false
by artist: Ludwig van Beethoven
by artist: András Schiff
by artist: Bernard Haitink
by artist: Staatskapelle Dresden
in album: 40 Most Beautiful Love Themes
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  date published: 2007-04-24
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: DEA809642002
additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-29T21:13:37Z
audio: Beethoven: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco mosso
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Vivaldi: Mandolin Concerto in D Major, RV 93: II. Largo
type: MusicRecording
duration: PT4M43S
duration ms: 283213
explicit: false
by artist: Antonio Vivaldi
by artist: Claudio Scimone
by artist: I Solisti Veneti
in album: 40 Most Beautiful Love Themes
  type: MusicAlbum
  date published: 2007-04-24
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: FRZ208306302
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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
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-02T03:30:09Z
audio: Vivaldi: Mandolin Concerto in D Major, RV 93: II. Largo
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Ravel: Boléro, M. 81 (Excerpt)
type: MusicRecording
duration: PT5M7S
duration ms: 307346
explicit: false
by artist: Maurice Ravel
by artist: Christoph von Dohnányi
by artist: The Cleveland Orchestra
in album: 40 Most Beautiful Love Themes
  type: MusicAlbum
  date published: 2007-04-24
genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-30T05:15:54Z
audio: Ravel: Boléro, M. 81 (Excerpt)
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Rachmaninov: Piano Concerto No. 2 in C Minor, Op. 18: II. Adagio sostenuto (Excerpt)
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duration: PT6M40S
duration ms: 400453
explicit: false
by artist: Sergei Rachmaninoff
by artist: Alexei Sultanov
by artist: Maxim Shostakovich
by artist: London Symphony Orchestra
in album: 40 Most Beautiful Love Themes
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genre: classical
genre: classical-piano
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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
  value: 2026-07-30T14:36:16Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T14:36:16Z
audio: Rachmaninov: Piano Concerto No. 2 in C Minor, Op. 18: II. Adagio sostenuto (Excerpt)
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Elgar: Variations on an Original Theme, Op. 36 "Enigma": Variation IX. Nimrod
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duration: PT4M14S
duration ms: 254440
explicit: false
by artist: Edward Elgar
by artist: Andrew Davis
by artist: BBC Symphony Orchestra
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genre: classical
genre: late-romantic-era
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Elgar: Variations on an Original Theme, Op. 36 "Enigma": Variation IX. Nimrod
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Borodin: String Quartet No. 2 in D Major: III. Notturno (Excerpt)
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Schumann: Kinderszenen, Op. 15: No. 7, Träumerei
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subject of: OpenTimestamps Proof of Existence
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Wagner : Tristan und Isolde : Act 3 Isoldes Liebestod [Orchestral Version]
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Bizet: Carmen, WD 31: Prelude to Act 3
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  date published: 2026-07-30T20:23:53Z
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Tchaikovsky: Violin Concerto in D Major, Op. 35: II. Canzonetta. Andante (Excerpt)
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Chopin: 24 Preludes, Op. 28: No. 4 in E Minor
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Albinoni: Oboe Concerto in D Minor, Op. 9 No. 2: II. Adagio
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Tchaikovsky: Symphony No. 6 in B Minor, Op. 74 "Pathétique": I. Adagio - Allegro non troppo
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Brahms: Piano Concerto No. 2 in B-Flat Major, Op. 83: III. Andante
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Villa-Lobos: Bachianas Brasileiras No. 5 : I. Aria (Adagio)
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subject of: OpenTimestamps Proof of Existence
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Bach, JS / Transcr. Tureck for Guitar: Keyboard Concerto No. 5 in F Minor, BWV 1056: II. Largo
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subject of: OpenTimestamps Proof of Existence
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Liszt: Liebesträum No. 3 in A-Flat Major, S. 541
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Shostakovich / Arr. Atovmyan: Suite from the Gadfly, Op. 97a: VIII. Romance (Excerpt)
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Massenet: Thaïs, Act 2: Méditation (Version for Violin and Piano)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Massenet: Thaïs, Act 2: Méditation (Version for Violin and Piano)
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Strauss, Johann II : An der schönen blauen Donau Op.314 [Blue Danube Waltz] [Excerpt]
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by artist: Johann Strauss II
by artist: Armin Jordan
by artist: Basel Symphony Orchestra
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Strauss, Johann II : An der schönen blauen Donau Op.314 [Blue Danube Waltz] [Excerpt]
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Satie / Arr Debussy : 3 Gymnopédies : III Lent et grave
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by artist: Erik Satie
by artist: Lawrence Foster
by artist: Monte-Carlo Philharmonic Orchestra
in album: 40 Most Beautiful Love Themes
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additional property: OTSVerificationAPI
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T05:43:45Z
audio: Satie / Arr Debussy : 3 Gymnopédies : III Lent et grave
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Bach, JS: Keyboard Concerto No. 3 in D Minor, BWV 974: II. Adagio (After Marcello's Oboe Concerto, S. Z799)
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duration: PT4M23S
duration ms: 263306
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by artist: Johann Sebastian Bach
by artist: Alessio Bax
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genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:53:57Z
audio: Bach, JS: Keyboard Concerto No. 3 in D Minor, BWV 974: II. Adagio (After Marcello's Oboe Concerto, S. Z799)
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Rachmaninov: Symphony No. 2 in E Minor, Op. 27: III. Adagio (Excerpt)
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duration ms: 211586
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by artist: Alexander Lazarev
by artist: The Bolshoi Symphony Orchestra
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genre: classical
genre: classical-piano
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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
audio: Rachmaninov: Symphony No. 2 in E Minor, Op. 27: III. Adagio (Excerpt)
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Albert: Tiefland (Recorded 1953)
type: MusicAlbum
date published: 2015-03-01

Jolivet: Concerto pour basson, orchestre à cordes, harpe et piano (Mono Version)
type: MusicAlbum
date published: 1961-01-01

18th Century Orchestra: Beethoven
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T13:04:34Z
  audio: Symphony No. 7 in A, Op. 92: 2. Allegretto
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track: Violin Concerto in D major, Op. 61: 2. Larghetto
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T13:04:34Z
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      type: PropertyValue
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    additional property: Loudness (dB)
      type: PropertyValue
      value: -30.742
    additional property: Key Name
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      value: Ab
    additional property: Mode Name
      type: PropertyValue
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Stravinsky: Petrouchka
type: MusicAlbum
date published: 2019-01-18
track: Petrouchka / Tableau I: Fête populaire de la semaine grasse
  type: MusicRecording
  duration: PT7M22S
  duration ms: 442734
  explicit: false
  by artist: Igor Stravinsky
  by artist: Yvonne Loriod
  by artist: Orchestre Des Cento Soli
  by artist: Rudolf Albert
  in album: Stravinsky: Petrouchka
    type: MusicAlbum
    date published: 2019-01-18
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2ccbdb304fa69f5c0880db5c6617df7dd1c5c3b5e2023d96a3028f7d1ee16e31
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960225
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960225
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ395700980
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T08:04:30Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccbdb304fa69f5c0880db5c6617df7dd1c5c3b5e2023d96a3028f7d1ee16e31. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/FRZ395700980.
    date published: 2026-07-30T08:04:30Z
  audio: Petrouchka / Tableau I: Fête populaire de la semaine grasse
    type: AudioObject
    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
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    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: Mode Name
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track: Petrouchka / Tableau I: Le tour de passe-passe
  type: MusicRecording
  duration: PT2M32S
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  explicit: false
  by artist: Igor Stravinsky
  by artist: Yvonne Loriod
  by artist: Orchestre Des Cento Soli
  by artist: Rudolf Albert
  in album: Stravinsky: Petrouchka
    type: MusicAlbum
    date published: 2019-01-18
  isrc code: FRZ395700990
  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe2c2cad43f10abf1c1793cf3ac50282d0e605aaf004e2e547f672249eabfbee9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960397
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ395700990
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T12:24:41Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c2cad43f10abf1c1793cf3ac50282d0e605aaf004e2e547f672249eabfbee9. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FRZ395700990.
    date published: 2026-07-31T12:24:41Z
  audio: Petrouchka / Tableau I: Le tour de passe-passe
    type: AudioObject
    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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    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Petrouchka / Tableau II: Chez Pétrouchka
  type: MusicRecording
  duration: PT4M31S
  duration ms: 271615
  explicit: false
  by artist: Igor Stravinsky
  by artist: Yvonne Loriod
  by artist: Orchestre Des Cento Soli
  by artist: Rudolf Albert
  in album: Stravinsky: Petrouchka
    type: MusicAlbum
    date published: 2019-01-18
  isrc code: FRZ395701000
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T00:31:12+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x272aea08f65657d8fe7a261da68a575b3857f58dc43aab6eea8ecad412cf5de8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Petrouchka / Tableau II: Chez Pétrouchka
track: Petrouchka / Tableau III: Chez le Maure – Danse de la ballerine
track: Petrouchka / Tableau III: Valse : La ballerine et le Maure
track: Petrouchka / Tableau IV: Fête populaire de la semaine grasse, vers le soir
track: Petrouchka / Tableau IV: Danse des nounous
track: Petrouchka / Tableau IV: Un marchand fêtard avec deux tziganes
track: Petrouchka / Tableau IV: Danse des cochers et des palefreniers
track: Petrouchka / Tableau IV: Les déguisés
track: Petrouchka / Tableau IV: Apparition du double de Pétrouchka

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 960334

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960334

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ395701000

OTSTimestamp
type: PropertyValue
value: 2026-07-31T02:19:15Z

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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x272aea08f65657d8fe7a261da68a575b3857f58dc43aab6eea8ecad412cf5de8. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FRZ395701000.
date published: 2026-07-31T02:19:15Z

Petrouchka / Tableau II: Chez Pétrouchka
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 116.152
additional property: Musical Key
  type: PropertyValue
  value: 4
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.303
additional property: Energy
  type: PropertyValue
  value: 0.089
additional property: Speechiness
  type: PropertyValue
  value: 0.047
additional property: Acousticness
  type: PropertyValue
  value: 0.966
additional property: Instrumentalness
  type: PropertyValue
  value: 0.194
additional property: Liveness
  type: PropertyValue
  value: 0.393
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.084
additional property: Loudness (dB)
  type: PropertyValue
  value: -25.682
additional property: Key Name
  type: PropertyValue
  value: E
additional property: Mode Name
  type: PropertyValue
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Petrouchka / Tableau III: Chez le Maure – Danse de la ballerine
type: MusicRecording
duration: PT3M37S
duration ms: 217269
explicit: false
by artist: Igor Stravinsky
by artist: Yvonne Loriod
by artist: Orchestre Des Cento Soli
by artist: Rudolf Albert
in album: Stravinsky: Petrouchka
  type: MusicAlbum
  date published: 2019-01-18
isrc code: FRZ395701010
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:57:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9378d19ce2fb890503c0ff8c0622178774c8241192ae2613365aea0023437f34
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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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/FRZ395701010
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9378d19ce2fb890503c0ff8c0622178774c8241192ae2613365aea0023437f34. 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/FRZ395701010.
  date published: 2026-07-08T03:20:19Z
audio: Petrouchka / Tableau III: Chez le Maure – Danse de la ballerine
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.897
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    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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  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  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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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Petrouchka / Tableau III: Valse : La ballerine et le Maure
type: MusicRecording
duration: PT3M9S
duration ms: 189747
explicit: false
by artist: Igor Stravinsky
by artist: Yvonne Loriod
by artist: Orchestre Des Cento Soli
by artist: Rudolf Albert
in album: Stravinsky: Petrouchka
  type: MusicAlbum
  date published: 2019-01-18
isrc code: FRZ395701020
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:14:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2e314b1a2ec449b5ae7494cf38743d4b2284a047511d90c14469872dac96f4ce
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/FRZ395701020
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e314b1a2ec449b5ae7494cf38743d4b2284a047511d90c14469872dac96f4ce. 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/FRZ395701020.
  date published: 2026-07-08T03:20:19Z
audio: Petrouchka / Tableau III: Valse : La ballerine et le Maure
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.188
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.284
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.066
  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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  additional property: Mode Name
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Petrouchka / Tableau IV: Fête populaire de la semaine grasse, vers le soir
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duration: PT1M15S
duration ms: 75781
explicit: false
by artist: Igor Stravinsky
by artist: Yvonne Loriod
by artist: Orchestre Des Cento Soli
by artist: Rudolf Albert
in album: Stravinsky: Petrouchka
  type: MusicAlbum
  date published: 2019-01-18
isrc code: FRZ395701030
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T18:59:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9e04c521f2c2168986fb8d3ef6c508110ea04e8d55394a56b9909dc39829364f
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ395701030
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e04c521f2c2168986fb8d3ef6c508110ea04e8d55394a56b9909dc39829364f. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/FRZ395701030.
  date published: 2026-07-31T19:53:13Z
audio: Petrouchka / Tableau IV: Fête populaire de la semaine grasse, vers le soir
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.761
  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
    value: 0.331
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  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)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Petrouchka / Tableau IV: Danse des nounous
type: MusicRecording
duration: PT2M48S
duration ms: 168925
explicit: false
by artist: Igor Stravinsky
by artist: Yvonne Loriod
by artist: Orchestre Des Cento Soli
by artist: Rudolf Albert
in album: Stravinsky: Petrouchka
  type: MusicAlbum
  date published: 2019-01-18
isrc code: FRZ395701040
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T21:04:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x79a1b70d92015b91cf0a4c318cd01a0f40383076e3475204e597f71124ddf396
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a1b70d92015b91cf0a4c318cd01a0f40383076e3475204e597f71124ddf396. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FRZ395701040.
  date published: 2026-07-31T21:25:57Z
audio: Petrouchka / Tableau IV: Danse des nounous
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.369
  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: 0.445
  additional property: Energy
    type: PropertyValue
    value: 0.186
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.807
  additional property: Liveness
    type: PropertyValue
    value: 0.599
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.589
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.052
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Petrouchka / Tableau IV: Un marchand fêtard avec deux tziganes
type: MusicRecording
duration: PT1M12S
duration ms: 72777
explicit: false
by artist: Igor Stravinsky
by artist: Yvonne Loriod
by artist: Orchestre Des Cento Soli
by artist: Rudolf Albert
in album: Stravinsky: Petrouchka
  type: MusicAlbum
  date published: 2019-01-18
isrc code: FRZ395701060
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T20:31:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x52ea3e2254fcf93812cda0aff3867568e1c681633d5f2f610d29bee18ffa8024
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ395701060
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ea3e2254fcf93812cda0aff3867568e1c681633d5f2f610d29bee18ffa8024. 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/FRZ395701060.
  date published: 2026-07-08T03:22:41Z
audio: Petrouchka / Tableau IV: Un marchand fêtard avec deux tziganes
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.898
  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: 0.379
  additional property: Energy
    type: PropertyValue
    value: 0.172
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.969
  additional property: Liveness
    type: PropertyValue
    value: 0.361
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.306
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.886
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Petrouchka / Tableau IV: Danse des cochers et des palefreniers
type: MusicRecording
duration: PT2M20S
duration ms: 140878
explicit: false
by artist: Igor Stravinsky
by artist: Yvonne Loriod
by artist: Orchestre Des Cento Soli
by artist: Rudolf Albert
in album: Stravinsky: Petrouchka
  type: MusicAlbum
  date published: 2019-01-18
isrc code: FRZ395701070
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:58:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa0a8731577514aad1c9d2bf46c89c26eac3e48d4b0b611b5038a7127309eb533
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/FRZ395701070
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a8731577514aad1c9d2bf46c89c26eac3e48d4b0b611b5038a7127309eb533. 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/FRZ395701070.
  date published: 2026-07-08T03:20:19Z
audio: Petrouchka / Tableau IV: Danse des cochers et des palefreniers
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.126
  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: 0.538
  additional property: Energy
    type: PropertyValue
    value: 0.29
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.972
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.748
  additional property: Liveness
    type: PropertyValue
    value: 0.242
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.714
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.465
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Petrouchka / Tableau IV: Les déguisés
type: MusicRecording
duration: PT1M36S
duration ms: 96269
explicit: false
by artist: Igor Stravinsky
by artist: Yvonne Loriod
by artist: Orchestre Des Cento Soli
by artist: Rudolf Albert
in album: Stravinsky: Petrouchka
  type: MusicAlbum
  date published: 2019-01-18
isrc code: FRZ395701080
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T15:23:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9f8693f9a56a6c36f5fb31d6b813d682517ad502653b811a6234c1ad5f926760
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960427
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960427
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ395701080
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:59:18Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8693f9a56a6c36f5fb31d6b813d682517ad502653b811a6234c1ad5f926760. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/FRZ395701080.
  date published: 2026-07-31T15:59:18Z
audio: Petrouchka / Tableau IV: Les déguisés
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.056
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.492
  additional property: Energy
    type: PropertyValue
    value: 0.333
  additional property: Speechiness
    type: PropertyValue
    value: 0.155
  additional property: Acousticness
    type: PropertyValue
    value: 0.989
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.945
  additional property: Liveness
    type: PropertyValue
    value: 0.522
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.19
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.437
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Petrouchka / Tableau IV: Apparition du double de Pétrouchka
type: MusicRecording
duration: PT0M47S
duration ms: 47479
explicit: false
by artist: Igor Stravinsky
by artist: Yvonne Loriod
by artist: Orchestre Des Cento Soli
by artist: Rudolf Albert
in album: Stravinsky: Petrouchka
  type: MusicAlbum
  date published: 2019-01-18
isrc code: FRZ395701120
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:28:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x771a9b23c04261e87b505af8aecfe180f391825a1234c7b8776436cee8852046
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957122
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957122
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ395701120
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:39:04Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771a9b23c04261e87b505af8aecfe180f391825a1234c7b8776436cee8852046. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FRZ395701120.
  date published: 2026-07-08T03:39:04Z
audio: Petrouchka / Tableau IV: Apparition du double de Pétrouchka
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.615
  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: 0.44
  additional property: Energy
    type: PropertyValue
    value: 0.117
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.756
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.559
  additional property: Liveness
    type: PropertyValue
    value: 0.16
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.39
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.107
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Messiaen: Visions de l'Amen, Cantéyodjayâ, Oiseaux exotiques
type: MusicAlbum
date published: 2019-01-18

Stravinski - Messiaen - Debussy - Jolivet
type: MusicAlbum
date published: 2014-03-28

Wagner: Ouvertures Et Préludes Vol.2
type: MusicAlbum
date published: 2006-01-01

Symphonie 9 "Du Nouveau Monde"-Sérénades Pour Cordes
type: MusicAlbum
date published: 2006-01-01
track: Symphony No. 9 in E Minor, Op. 95, B. 178, "Symphonie du nouveau monde": 1. Adagio - Allegro molto
  type: MusicRecording
  duration: PT9M21S
  duration ms: 561040
  explicit: false
  by artist: Antonín Dvořák
  by artist: Rudolf Albert
  by artist: Munich Philharmonic Orchestra
  in album: Symphonie 9 "Du Nouveau Monde"-Sérénades Pour Cordes
    type: MusicAlbum
    date published: 2006-01-01
  genre: classical
  genre: late-romantic-era
  genre: czech-classical
  isrc code: FRZ396103100
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T15:10:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xed1d095d41dd23360f96b7cc10178727ae24ae92d6c5c5b14e1ba69cb2b145fe
  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/FRZ396103100
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1d095d41dd23360f96b7cc10178727ae24ae92d6c5c5b14e1ba69cb2b145fe. 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/FRZ396103100.
    date published: 2026-07-08T03:20:19Z
  audio: Symphony No. 9 in E Minor, Op. 95, B. 178, "Symphonie du nouveau monde": 1. Adagio - Allegro molto
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 93.47
    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
      value: 0.148
    additional property: Energy
      type: PropertyValue
      value: 0.065
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.903
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.733
    additional property: Liveness
      type: PropertyValue
      value: 0.072
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.093
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.318
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Symphony No. 9 in E Minor, Op. 95, B. 178, "Symphonie du nouveau monde": 2. Largo
  type: MusicRecording
  duration: PT12M11S
  duration ms: 731066
  explicit: false
  by artist: Antonín Dvořák
  by artist: Rudolf Albert
  by artist: Munich Philharmonic Orchestra
  in album: Symphonie 9 "Du Nouveau Monde"-Sérénades Pour Cordes
    type: MusicAlbum
    date published: 2006-01-01
  genre: classical
  genre: late-romantic-era
  genre: czech-classical
  isrc code: FRZ396103110
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-08-01T00:03:07+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc5d554e8909290b8b7b614004173d6da9c9a68a53320de965f56e1187dbcfcc6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960485
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960485
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ396103110
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-08-01T00:10:46Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d554e8909290b8b7b614004173d6da9c9a68a53320de965f56e1187dbcfcc6. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/FRZ396103110.
    date published: 2026-08-01T00:10:46Z
  audio: Symphony No. 9 in E Minor, Op. 95, B. 178, "Symphonie du nouveau monde": 2. Largo
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 95.646
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.162
    additional property: Energy
      type: PropertyValue
      value: 0.006
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.945
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.888
    additional property: Liveness
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track: Minuet in F Major, K.32, (Nannerl Notebook No. 19)
track: Instrumental Canon, K.228
track: The London Sketchbook, K. 15a-ss (Orch. Smith): [Contredanse] in F Major, K. 15h
track: Piano Sonata No.14 in C Minor, K. 457: 2g. Adagio - Pt. 7
track: German Dance in F Major, K.15oo

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Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": III. Rondo. Allegretto
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Concerto for Flute, Harp, and Orchestra in C Major, K. 299: 2b. Andantino - Pt. 2
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6 Minuets K.61h: No. 2 in A
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Minuet in C Major, K.15f
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Violin Sonata in E-Flat Major, K. 481: III. Allegretto con variazioni: Var. 2
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Piano Concerto No. 21 in C Major, K. 467: 2b. Andante - Pt. 2
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12 Contredanses for Count Czernin, K.269b - orch. Erik Smith: No. 3 in C
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Divertimento No. 15 in B Flat Major, K.287: Variation V
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Symphony No. 31 in D Major, K. 297 "Paris": 2a. Andante - Pt. 1
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Piano Sonata No. 11 in A Major, K. 331: 3. Alla Turca (Allegretto)
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Minuet in F Major from K.6 (Nannerl Notebook No. 48)
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Violin Sonata in E-Flat Major, K. 481: III. Allegretto con variazioni: Var. 1
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Overture and Three Contredanses, K.106: Contredanse No. 1 in D Major
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T23:30:38Z
audio: Overture and Three Contredanses, K.106: Contredanse No. 1 in D Major
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Allegro in F, K.1c
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by artist: Ton Koopman
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genre: classical
genre: classical-era
genre: classical-piano
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:20:15Z
audio: Allegro in F, K.1c
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Violin Concerto No. 3 in G Major, K. 216: 2a. Adagio - Pt. 1
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duration: PT0M35S
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by artist: Patrice Fontanarosa
by artist: Helmut Müller-Brühl
by artist: Orchestre De Chambre De Cologne
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T19:53:13Z
audio: Violin Concerto No. 3 in G Major, K. 216: 2a. Adagio - Pt. 1
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Symphony No. 33 in B-Flat Major, K. 319: 2c. Andante moderato - Pt. 3
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T12:24:41Z
audio: Symphony No. 33 in B-Flat Major, K. 319: 2c. Andante moderato - Pt. 3
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Idomeneo, re di Creta, K.366 / Act 1: Allegro - Live
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T19:53:13Z
audio: Idomeneo, re di Creta, K.366 / Act 1: Allegro - Live
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Minuet in F Major, K.32, (Nannerl Notebook No. 19)
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T20:22:46Z
audio: Minuet in F Major, K.32, (Nannerl Notebook No. 19)
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Instrumental Canon, K.228
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Instrumental Canon, K.228
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German Dance in F Major, K.15oo
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Tchaikovsky Chill & Relax
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Stravinsky: Le Sacre Du Printemps 100th Anniversary Collectors Edition
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Carl Seemann: Complete Deutsche Grammophon Recordings
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