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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: 2026-07-08T03:53:27Z
audio: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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Romance No. 2 in F Major for Violin and Orchestra, Op. 50
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duration: PT8M41S
duration ms: 521039
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by artist: Ludwig van Beethoven
by artist: Ilmar Lapinsch
by artist: Alexei Bruni
by artist: State Symphony Capella of Russia
in album: This is Beethoven
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  date published: 2021-08-28
popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
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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: 2026-07-08T03:53:27Z
audio: Romance No. 2 in F Major for Violin and Orchestra, Op. 50
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Symphony No. 2 in D Major, Op. 36: II. Larghetto
type: MusicRecording
duration: PT12M38S
duration ms: 758906
explicit: false
by artist: Ludwig van Beethoven
by artist: Juozas Domarkas
by artist: Moscow Radio Symphony Orchestra
in album: This is Beethoven
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  date published: 2021-08-28
popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Symphony No. 2 in D Major, Op. 36: II. Larghetto
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Symphony No. 3 in E-Flat Major, Op. 55 "Eroica": I. Allegro con brio
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duration: PT14M59S
duration ms: 899200
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by artist: Woldemar Nelsson
by artist: SWR Symphony Orchestra
in album: This is Beethoven
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  date published: 2021-08-28
popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Symphony No. 3 in E-Flat Major, Op. 55 "Eroica": I. Allegro con brio
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Symphony No. 3 in E-Flat Major, Op. 55 "Eroica": II. Marcia funébre (Adagio assai)
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explicit: false
by artist: Ludwig van Beethoven
by artist: Woldemar Nelsson
by artist: SWR Symphony Orchestra
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popularity: 2
genre: classical
genre: classical-piano
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: 2026-07-08T03:20:19Z
audio: Symphony No. 3 in E-Flat Major, Op. 55 "Eroica": II. Marcia funébre (Adagio assai)
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Missa Solemnis in D Major, Op. 123: III. Credo
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duration: PT19M6S
duration ms: 1146000
explicit: false
by artist: Ludwig van Beethoven
by artist: Michael Gielen
by artist: Josef Protschka
by artist: Kurt Rydl
by artist: Marjana Lipovsek
by artist: Phyllis Bryn-Julson
by artist: Wolfgang Hock
by artist: SWR Symphony Orchestra
in album: This is Beethoven
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  date published: 2021-08-28
popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL0505703
additional property: CopyrightID
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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: 2026-07-08T03:53:27Z
audio: Missa Solemnis in D Major, Op. 123: III. Credo
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Symphony No. 7 in A Major, Op. 92: I. Poco sostenuto - Vivace
type: MusicRecording
duration: PT12M31S
duration ms: 751893
explicit: false
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by artist: Vladimir Fedoseyev
by artist: Moscow Radio Symphony Orchestra
in album: This is Beethoven
  type: MusicAlbum
  date published: 2021-08-28
popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
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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: Symphony No. 7 in A Major, Op. 92: I. Poco sostenuto - Vivace
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10 Variations on "Ich bin der Schneider Kakadu", Op. 121a
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Consecration of the House, Op. 124: Overture
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subject of: OpenTimestamps Proof of Existence
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Romance for Violin and Orchestra in G Major, Op. 40
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  date published: 2026-07-08T03:22:41Z
audio: Romance for Violin and Orchestra in G Major, Op. 40
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Beethoven Hits
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T11:38:34Z
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track: Bagatelle in A Minor, WoO 59 "Für Elise"
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    date published: 2026-07-08T08:56:20Z
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track: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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track: Fidelio, Op. 72: Overture
track: Symphony No. 9 in D Minor, Op. 125 "Choral": II. Scherzo (Molto vivace)
track: Piano Sonata No. 17 in D Minor, Op. 31 No. 2 "The Tempest": III. Allegretto

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OpenTimestamps Proof of Existence
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date published: 2026-07-02T03:55:08Z

Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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Fidelio, Op. 72: Overture
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Symphony No. 9 in D Minor, Op. 125 "Choral": II. Scherzo (Molto vivace)
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Piano Sonata No. 17 in D Minor, Op. 31 No. 2 "The Tempest": III. Allegretto
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track: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": I. Allegro
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track: Missa Solemnis in D Major, Op. 123: III. Credo
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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": III. Rondo (Allegro)
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Piano Sonata No. 12 in A-Flat Major, Op. 26 "Funeral March": I. Andante con variazione
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Violin Sonata No. 10 in G Major, Op. 96: I. Allegro moderato
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Violin Sonata No. 10 in G Major, Op. 96: I. Allegro moderato
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Violin Sonata No. 1 in D Major, Op. 12: II. Tema con variazioni (Andante con moto)
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Missa Solemnis in D Major, Op. 123: III. Credo
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  date published: 2026-07-08T03:20:19Z
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Symphony No. 2 in D Major, Op. 36: II. Larghetto
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Romance for Violin and Orchestra in F Major, Op. 50
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by artist: Alexei Bruni
by artist: State Symphony Capella of Russia
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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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Beethoven Works 101
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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track: Romance for Violin and Orchestra in G Major, Op. 40
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:55:08Z
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The 99 Most Essential Beethoven Masterpieces (Full Works Edition)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
  audio: Bagatelle in A Minor, WoO 59, "Für Elise"
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track: Sonata No. 14 in C-Sharp Minor for Piano, Op. 27:2, "Moonlight": I. Adagio sostenuto
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:22:41Z

Piano Trio in B-Flat Major, Op. 97, "Archduke": I. Allegro moderato
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Beethoven Famous Pieces
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Ballads: Beethoven
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Beethoven at Home
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The Top 100 In Classical Music
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150 Classical
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track: Gesang der Geister über den Wassern (C Major), Op. 167/D.714

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OpenTimestamps Proof of Existence
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Je te veux (1901)
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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audio: Gesang der Geister über den Wassern (C Major), Op. 167/D.714
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Workday - Home Office - Work at Home: 8 h Classical Music
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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Self Isolation: 8 h Classical Music
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track: Piano Concerto No. 21 in C Major, K. 467 "Elvira Madigan": II. Andante
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
  audio: Piano Concerto No. 21 in C Major, K. 467 "Elvira Madigan": II. Andante
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Classical Icon: Beethoven
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date published: 2024-09-23

Classical Focus
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
  audio: I giorni
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track: Le Carnaval des Animaux, R. 125: XIII. The Swan (Arr. for Violin)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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track: Je te veux
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  subject of: OpenTimestamps Proof of Existence
  audio: Je te veux
track: Salut d'amour, Op. 12
track: Piano Concerto No. 24 in C Minor, K. 491: II. Larghetto
track: Nocturne in C Minor, B. 108
track: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto
track: Orchestral Suite No. 3 in D Major, BWV 1068: II. Air

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

Je te veux
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Salut d'amour, Op. 12
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subject of: OpenTimestamps Proof of Existence
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audio: Salut d'amour, Op. 12
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Piano Concerto No. 24 in C Minor, K. 491: II. Larghetto
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Nocturne in C Minor, B. 108
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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto
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Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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3 Gymnopédies: I. Lent et douloureux
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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audio: Le Carnaval des Animaux, R. 125: XIII. The Swan (arr. for violin)
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Piano Concerto No. 23 in A Major, K. 488: II. Adagio
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by artist: Munich Youth Orchestra
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
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Berceuse in D-Flat Major, Op. 57
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T11:34:59Z
audio: Berceuse in D-Flat Major, Op. 57
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Cello Suite No. 5 in C Minor, BWV 1011: IV. Sarabande
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Cello Suite No. 5 in C Minor, BWV 1011: IV. Sarabande
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Wiegenlied, D. 498
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Wiegenlied, D. 498
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Rêverie, L. 68
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Rêverie, L. 68
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Songs Without Words, Op. 30: No. 6, Allegretto tranquillo in F-Sharp Major "Venezianisches Gondellied"
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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. 30: No. 6, Allegretto tranquillo in F-Sharp Major "Venezianisches Gondellied"
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Sonata No. 1 in F Minor for Viola and Piano, Op. 129: II. Andante un poco adagio
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Preludes, Op. 34a: No. 5 (Largo)
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Kinderszenen, Op. 15: VII. Träumerei
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The Seasons, Op. 37a: I. January, By the Hearth
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Goldberg Variations, BWV 988: Aria
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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto
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Chamber Concerto in D Major, RV 93: II. Largo
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En Rêve, S. 207
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: En Rêve, S. 207
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Bunte Blätter, Op. 99: VI. Albumblätter
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by artist: Axel Gillison
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genre: classical
genre: classical-piano
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: 2026-07-02T03:30:09Z
audio: Bunte Blätter, Op. 99: VI. Albumblätter
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Pavane pour une infante défunte, M. 19 "Pavane for a Dead Princess"
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by artist: Dagmar Zsapka
by artist: Jozef Zsapka
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Pavane pour une infante défunte, M. 19 "Pavane for a Dead Princess"
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Lyric Pieces, Op. 54: IV. Notturno
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by artist: Axel Gillison
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genre: late-romantic-era
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Lyric Pieces, Op. 54: IV. Notturno
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Suite in G Minor, BWV 995: IV. Sarabande
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by artist: Sonja Prunnbauer
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Suite in G Minor, BWV 995: IV. Sarabande
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Mozart: Piano Music for the Brain
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date published: 2012-02-14
track: Sonata No. 12 in F Major for Piano, K. 332: Adagio
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T13:32:09Z
  audio: Sonata No. 12 in F Major for Piano, K. 332: Adagio
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track: Concerto No. 20 in D Minor for Piano and Orchestra, K. 466: II. Romance
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T17:25:41Z
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track: Concerto for Piano and Orchestra No. 23, KV 488 in A Major: II. Adagio
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track: Sonata No. 16 in C Major for Piano, K. 545, "Sonata facile": I. Allegro
track: Rondo No. 3 in A Minor for Piano, K. 511
track: Concerto No. 6 in B-Flat Major for Piano and Orchestra, K. 238: III. Rondo: Allegro
track: Concerto No. 22 in E-Flat Major for Piano and Orchestra, K. 482: III. Allegro
track: Concerto No. 11 in F Major for Piano and Orchestra, K. 413: II. Andante
track: Concerto No. 14 in E-Flat Major for Piano and Orchestra, K. 449: III. Allegro ma non troppo
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Concerto No. 26 in D Major for Piano and Orchestra, K. 537, "Coronation": II. Romanza: (Larghetto con moto)
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Sonata No. 11 in A Major for Piano, K. 331, "Turkish March": I. Andante grazioso
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Concerto No. 21 in C Major for Piano and Orchestra, K. 467: Andante
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Concerto No. 11 in F Major for Piano and Orchestra, K. 413: II. Larghetto
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Sonata No. 1 in C Major for Piano, K. 279: II. Andante
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Concerto No. 2 in B-Flat Major for Piano and Orchestra, K. 39: I. Allegro spiritoso
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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 0xfec5622c5c6e90ec86975548a53fbec8e17d4031f12a090138ec2e703be2991e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEWDL0748207.
  date published: 2026-07-02T03:55:08Z
audio: Concerto No. 2 in B-Flat Major for Piano and Orchestra, K. 39: I. Allegro spiritoso
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Sonata No. 16 in C Major for Piano, K. 545, "Sonata facile": I. Allegro
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duration: PT4M44S
duration ms: 284612
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Henrik Måwe
in album: Mozart: Piano Music for the Brain
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  date published: 2012-02-14
genre: classical
genre: classical-era
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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
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL6018059
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb9070dfac912376cf55135b459fd6b47368f69e8d739511c8c92a18871194b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEWDL6018059.
  date published: 2026-07-02T03:55:08Z
audio: Sonata No. 16 in C Major for Piano, K. 545, "Sonata facile": I. Allegro
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Rondo No. 3 in A Minor for Piano, K. 511
type: MusicRecording
duration: PT11M1S
duration ms: 661866
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Hans-Jurg Strub
in album: Mozart: Piano Music for the Brain
  type: MusicAlbum
  date published: 2012-02-14
genre: classical
genre: classical-era
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0717601
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0x347ff9ee6ad99bf559ea769d823ffc513c37979ec3b44a34bb91c8a2417a1855. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEWDL0717601.
  date published: 2026-07-02T03:55:08Z
audio: Rondo No. 3 in A Minor for Piano, K. 511
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Concerto No. 6 in B-Flat Major for Piano and Orchestra, K. 238: III. Rondo: Allegro
type: MusicRecording
duration: PT6M59S
duration ms: 419293
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Carmen Piazzini
by artist: Mikhail Gantvarg
by artist: The St. Petersburg Soloists
in album: Mozart: Piano Music for the Brain
  type: MusicAlbum
  date published: 2012-02-14
genre: classical
genre: classical-era
isrc code: SEWDL0748303
additional property: CopyrightID
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
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86abf3ecf0e55d8bac45f5072e398fbf851d32b29d56112c0a053ff6fe7d4488. 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/SEWDL0748303.
  date published: 2026-07-02T03:30:09Z
audio: Concerto No. 6 in B-Flat Major for Piano and Orchestra, K. 238: III. Rondo: Allegro
  type: AudioObject
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Concerto No. 22 in E-Flat Major for Piano and Orchestra, K. 482: III. Allegro
type: MusicRecording
duration: PT11M0S
duration ms: 660666
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Carmen Piazzini
by artist: Mikhail Gantvarg
by artist: The St. Petersburg Soloists
in album: Mozart: Piano Music for the Brain
  type: MusicAlbum
  date published: 2012-02-14
genre: classical
genre: classical-era
isrc code: SEWDL0720203
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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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
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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 0x507faaa6157d0843e28cb3cefc696ca7bfdaf07ba392484cbfb2bc20272d8c01. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEWDL0720203.
  date published: 2026-07-02T03:55:08Z
audio: Concerto No. 22 in E-Flat Major for Piano and Orchestra, K. 482: III. Allegro
  type: AudioObject
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Concerto No. 11 in F Major for Piano and Orchestra, K. 413: II. Andante
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duration: PT8M2S
duration ms: 482826
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karin Lechner
by artist: Franciscan String Quartet
in album: Mozart: Piano Music for the Brain
  type: MusicAlbum
  date published: 2012-02-14
genre: classical
genre: classical-era
isrc code: SEWDL0729102
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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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
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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 0xf062af4a3aa799117d9ae41cd78a828cdeeae2e75d05f902b8143d70630c591a. 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/SEWDL0729102.
  date published: 2026-07-02T03:30:09Z
audio: Concerto No. 11 in F Major for Piano and Orchestra, K. 413: II. Andante
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  additional property: Tempo (BPM)
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Concerto No. 14 in E-Flat Major for Piano and Orchestra, K. 449: III. Allegro ma non troppo
type: MusicRecording
duration: PT6M10S
duration ms: 370108
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Jeremy Menuhin
by artist: Leopold Hager
by artist: SWR Symphony Orchestra
in album: Mozart: Piano Music for the Brain
  type: MusicAlbum
  date published: 2012-02-14
genre: classical
genre: classical-era
isrc code: SEWDL0783703
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7616cb361f82c8d0455b954edbc46ea19bb3bf3dc8342a3661dd48ff0d65f0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEWDL0783703.
  date published: 2026-07-02T03:55:08Z
audio: Concerto No. 14 in E-Flat Major for Piano and Orchestra, K. 449: III. Allegro ma non troppo
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Sonata No. 18 in D Major for Piano, K. 576: II. Adagio
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duration: PT6M12S
duration ms: 372066
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by artist: Wolfgang Amadeus Mozart
by artist: Carmen Piazzini
in album: Mozart: Piano Music for the Brain
  type: MusicAlbum
  date published: 2012-02-14
genre: classical
genre: classical-era
isrc code: SEWDL0719808
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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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: 2026-07-02T03:55:08Z
audio: Sonata No. 18 in D Major for Piano, K. 576: II. Adagio
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Concerto No. 11 in F Major for Piano and Orchestra, K. 413: I. Allegro
type: MusicRecording
duration: PT9M14S
duration ms: 554533
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Carmen Piazzini
by artist: Mikhail Gantvarg
by artist: The St. Petersburg Soloists
in album: Mozart: Piano Music for the Brain
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genre: classical
genre: classical-era
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf6e09b859fda02d28cbcb4bc1a8074a3397dd31376e6ed0ab4e962674b4cfa. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SEWDL0748307.
  date published: 2026-07-02T05:09:12Z
audio: Concerto No. 11 in F Major for Piano and Orchestra, K. 413: I. Allegro
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Concerto No. 24 in C Minor for Piano and Orchestra, K. 491: II. Larghetto
type: MusicRecording
duration: PT7M17S
duration ms: 437026
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Dubravka Tomšič
by artist: Anton Nanut
by artist: RTV Slovenia Symphony Orchestra
in album: Mozart: Piano Music for the Brain
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  date published: 2012-02-14
genre: classical
genre: classical-era
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additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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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
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec7a07355d84b1e4cc082a1e911c4dc2bdee756a02f7b9dc38000f1921fce1c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEWDL0795905.
  date published: 2026-07-02T03:55:08Z
audio: Concerto No. 24 in C Minor for Piano and Orchestra, K. 491: II. Larghetto
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Sonata No. 12 in F Major for Piano, K. 332: I. Allegro
type: MusicRecording
duration: PT7M15S
duration ms: 435000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Carmen Piazzini
in album: Mozart: Piano Music for the Brain
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  date published: 2012-02-14
genre: classical
genre: classical-era
isrc code: SEWDL0750204
additional property: CopyrightID
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
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf779c94f3298877b52237266d3efb1f7f0a4d6b81039d4d2b781932dcbe3297a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEWDL0750204.
  date published: 2026-07-02T03:55:08Z
audio: Sonata No. 12 in F Major for Piano, K. 332: I. Allegro
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Concerto No. 12 in A Major for Piano and Orchestra, K. 414: II. Andante
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duration: PT8M22S
duration ms: 502626
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Ratko Delorko
by artist: Vestischen Chamber Orchestra
in album: Mozart: Piano Music for the Brain
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genre: classical
genre: classical-era
isrc code: SEWDL0508705
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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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
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14031615c0c65fa2bd02e5b8345fa274dad1a1a3388ca0076092353e453943ab. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEWDL0508705.
  date published: 2026-07-02T03:55:08Z
audio: Concerto No. 12 in A Major for Piano and Orchestra, K. 414: II. Andante
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Concerto No. 7 in F Major for Three Pianos and Orchestra, K. 242, "Lodron": II. Adagio
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duration: PT8M1S
duration ms: 481360
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Carmen Piazzini
by artist: Mikhail Gantvarg
by artist: The St. Petersburg Soloists
in album: Mozart: Piano Music for the Brain
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  date published: 2012-02-14
genre: classical
genre: classical-era
isrc code: SEWDL0720402
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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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
  type: DigitalDocument
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  date published: 2026-07-02T03:55:08Z
audio: Concerto No. 7 in F Major for Three Pianos and Orchestra, K. 242, "Lodron": II. Adagio
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Sonata No. 14 in C Minor for Piano, K. 457: I. Molto allegro
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duration: PT6M25S
duration ms: 385693
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by artist: Wolfgang Amadeus Mozart
by artist: Carmen Piazzini
in album: Mozart: Piano Music for the Brain
  type: MusicAlbum
  date published: 2012-02-14
genre: classical
genre: classical-era
isrc code: SEWDL0708428
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Sonata No. 14 in C Minor for Piano, K. 457: I. Molto allegro
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Sonata in B-Flat Major for Piano Four-hands, K. 358: II. Adagio
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duration: PT7M45S
duration ms: 465173
explicit: false
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by artist: Karin Lechner
by artist: Sergio Tiempo
in album: Mozart: Piano Music for the Brain
  type: MusicAlbum
  date published: 2012-02-14
genre: classical
genre: classical-era
isrc code: SEWDL0722111
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Sonata in B-Flat Major for Piano Four-hands, K. 358: II. Adagio
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Rondo No. 2 in A Major for Piano and Orchestra, K. 386: Rondo
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duration: PT7M39S
duration ms: 459960
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by artist: Wolfgang Amadeus Mozart
by artist: Carmen Piazzini
by artist: Mikhail Gantvarg
by artist: The St. Petersburg Soloists
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genre: classical
genre: classical-era
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Rondo No. 2 in A Major for Piano and Orchestra, K. 386: Rondo
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Sonata No. 5 in G Major for Piano, K. 283: I. Allegro
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duration: PT4M3S
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by artist: Carmen Piazzini
in album: Mozart: Piano Music for the Brain
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genre: classical
genre: classical-era
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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: 2026-07-02T03:55:08Z
audio: Sonata No. 5 in G Major for Piano, K. 283: I. Allegro
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Piano Rainy Days
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date published: 2020-02-22
track: Summer Rain
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:55:08Z
  audio: Summer Rain
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track: Come Away with Me
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T12:53:06Z
  audio: Come Away with Me
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Relaxing with Beethoven
type: MusicAlbum
date published: 2020-11-02
track: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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  genre: classical
  genre: classical-piano
  genre: chamber-music
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998dfd12fb08df920da6c02f0bd4827b49ab6cad28efc09e4400e79479ed5c3d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SEWDL6018032.
    date published: 2026-07-06T06:56:49Z
  audio: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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track: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto
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  by artist: City of London Sinfonia
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  genre: classical
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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. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto
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track: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
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Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
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Symphony No. 2 in D Major, Op. 36: II. Larghetto
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Bagatelle in A Minor, WoO 59 "Für Elise"
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Violin Sonata No. 6 in A Major, Op. 30 No. 1: II. Adagio molto espressivo
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Piano Sonata No. 28, Op. 101: I. Etwas lebhaft und mit der innigsten Empfindung
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Romance No. 2 in F Major for Violin and Orchestra, Op. 50
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Cello Sonata No. 3 in A Major, Op. 69: I. Allegro ma non tanto
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Violin Sonata No. 1 in D Major, Op. 12: II. Tema con variazioni (Andante con moto)
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Mozart Piano Pieces
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Klassische Musik Mozart
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Study with Beethoven
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    date published: 2026-07-08T03:53:27Z
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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto
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Piano Cry
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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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    date published: 2026-07-08T08:56:20Z
  audio: The End of All Our Exploring (From "The Leftovers")
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    additional property: Speechiness
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Beethoven On the Piano
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date published: 2019-05-11
track: Bagatelle in A Minor, WoO 59 "Für Elise"
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  by artist: Henrik Måwe
  in album: Beethoven On the Piano
    type: MusicAlbum
    date published: 2019-05-11
  genre: classical
  genre: classical-piano
  genre: chamber-music
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  additional property: CopyrightID
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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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
    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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0bf8b8c5b530113570db39fde91fb23291d3910a375e42bf6bf89d8a5dc9e5d. 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/SEWDL6018035.
    date published: 2026-07-08T08:56:20Z
  audio: Bagatelle in A Minor, WoO 59 "Für Elise"
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Mode (Major/Minor)
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track: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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  by artist: Ludwig van Beethoven
  by artist: Finghin Collins
  in album: Beethoven On the Piano
    type: MusicAlbum
    date published: 2019-05-11
  genre: classical
  genre: classical-piano
  genre: chamber-music
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  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9baaa243819007bd8ee40f7c3c05d5fcb2298f558632582b81e149b7fbef93f1. 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/SEWDL9750030.
    date published: 2026-07-08T03:53:27Z
  audio: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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    additional property: Musical Key
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    additional property: Valence (Positivity)
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track: Piano Sonata No. 17 in D Minor, Op. 31 No . 2 "The Tempest": III. Allegretto
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  explicit: false
  by artist: Ludwig van Beethoven
  by artist: Herbert Waltl
  in album: Beethoven On the Piano
    type: MusicAlbum
    date published: 2019-05-11
  genre: classical
  genre: classical-piano
  genre: chamber-music
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  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Piano Sonata No. 17 in D Minor, Op. 31 No . 2 "The Tempest": III. Allegretto
track: Piano Sonata No. 1, Op. 2 No. 1: II. Adagio
track: Piano Sonata No. 2, Op. 2 No. 2: II. Largo appasionato
track: Piano Sonata No. 7, Op. 10 No. 3: III. Minuet

CopyrightChainExplorerURL
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OTSHash
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0742303

OTSTimestamp
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OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980d865550b7835f922b6e2aaf0edf6848a99c775b86fedd355ad82f9b03abee. 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/SEWDL0742303.
date published: 2026-07-08T03:20:19Z

Piano Sonata No. 17 in D Minor, Op. 31 No . 2 "The Tempest": III. Allegretto
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
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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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
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Piano Sonata No. 1, Op. 2 No. 1: II. Adagio
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duration: PT8M20S
duration ms: 500836
explicit: false
by artist: Ludwig van Beethoven
by artist: Axel Gillison
in album: Beethoven On the Piano
  type: MusicAlbum
  date published: 2019-05-11
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL6142645
additional property: CopyrightID
additional property: CopyrightStatus
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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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ff0cdfaee4c739852b68a4c7aa6eee5d1c8131c0c284f5d5dffb3e2b5edcc4. 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/SEWDL6142645.
  date published: 2026-07-08T03:20:19Z
audio: Piano Sonata No. 1, Op. 2 No. 1: II. Adagio
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  additional property: Tempo (BPM)
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Piano Sonata No. 2, Op. 2 No. 2: II. Largo appasionato
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duration: PT9M4S
duration ms: 544835
explicit: false
by artist: Ludwig van Beethoven
by artist: Axel Gillison
in album: Beethoven On the Piano
  type: MusicAlbum
  date published: 2019-05-11
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: CopyrightID
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additional property: CopyrightChainExplorerURL
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc0f1829ab84262b1e921bac79297fecf1593c86b64793cba7df905bdb9c406. 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/SEWDL6142646.
  date published: 2026-07-08T08:56:20Z
audio: Piano Sonata No. 2, Op. 2 No. 2: II. Largo appasionato
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  additional property: Tempo (BPM)
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Piano Sonata No. 7, Op. 10 No. 3: III. Minuet
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duration: PT4M38S
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explicit: false
by artist: Ludwig van Beethoven
by artist: Axel Gillison
in album: Beethoven On the Piano
  type: MusicAlbum
  date published: 2019-05-11
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: CopyrightID
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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: 2026-07-08T03:53:27Z
audio: Piano Sonata No. 7, Op. 10 No. 3: III. Minuet
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Acousticness
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date published: 2020-11-08
track: Für Elise, WoO 59
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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: 2026-07-08T03:22:41Z
  audio: Für Elise, WoO 59
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track: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b8a6b4d2842288501f54a67000d98ffc5c0a4e3041d69097f219f4b2330a6b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/SEWDL6018031.
    date published: 2026-07-07T18:39:05Z
  audio: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
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date published: 2020-10-13
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  genre: classical
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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
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b8a6b4d2842288501f54a67000d98ffc5c0a4e3041d69097f219f4b2330a6b. 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/SEWDL6018031.
    date published: 2026-07-08T03:22:41Z
  audio: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": II. Adagio cantabile
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track: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-08T03:39:04Z
  audio: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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track: Piano Sonata No. 28, Op. 101: I. Etwas lebhaft und mit der innigsten Empfindung
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  subject of: OpenTimestamps Proof of Existence
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track: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto

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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54fc3bb93d08f4ca1fe3b948d4501ae1e02968a8e49059f7f71cfae755adc243. 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/SEWDL6143106.
date published: 2026-07-08T03:20:19Z

Piano Sonata No. 28, Op. 101: I. Etwas lebhaft und mit der innigsten Empfindung
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additional property: Valence (Positivity)
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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto
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by artist: Cristina Ortiz
by artist: City of London Sinfonia
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genre: classical
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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: 2026-07-08T03:20:19Z
audio: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto
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Piano Hits
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date published: 2019-07-05
track: Lyric Pieces, Op. 54: IV. Notturno
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:55:08Z
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    date published: 2026-07-08T03:53:27Z
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track: Piano Concerto No. 20 in D Minor, K. 466: I. Allegro
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:39:04Z
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Sad Piano
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Mozart Piano Hits
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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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track: Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": III. Rondo
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    date published: 2026-07-08T03:22:41Z
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Tearjerkers: Mozart
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    date published: 2026-07-08T03:22:41Z
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Beethoven Piano Pieces
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