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album: Fuchs: The Complete Works for Cello & Piano
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  date published: 2017-05-19
album: La flute à l’école de Paris
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  date published: 2023-08-18
album: Hiller: Piano Quartet No. 3 in A Minor, Op. 133 & Piano Quintet in G Major, Op. 156
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  date published: 2022-07-01
album: Huber: Piano Quintet No. 1 in G Minor, Op. 111 & Piano Quintet No. 2 in G Major, Op. 125
  type: MusicAlbum
  date published: 2024-05-13
album: Radu Paladi: Concertos & Symphonic Suite "The Little Magic Flute"
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  date published: 2022-08-05
album: Berger: Konzertstück, Op. 43a / Symphony, Op. 71
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  date published: 2021
album: Labor: Piano Concertos for the Left Hand Nos. 1-3
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album: Schaeuble: Piano Concerto, Op. 50, Oboe Concertino, Op. 44 & Serenade, Op. 42
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album: Herz: Orchestral Works
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album: Constantinescu: Piano Concerto & Wedding in the Carpathians
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album: Leiviskä: Piano Concerto in D Minor, Op. 7 & Symphony No. 1 in B-Flat Major
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album: Frumerie: Clarinet Concerto, Op. 51, Piano Concertino, Op. 78, Musica per nove, Op. 75 & Suite for Small Orchestra, Op. 5b
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album: Balkan Discoveries
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album: Heinrich Hofmann - Complete Piano Chamber Music
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album: Frid: The Complete Works for Violin and Piano
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album: Johanna Senfter - Complete Works for Viola And Piano
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album: Karl Weigl: Orchestral Works
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album: Josef Labor: Clarinet Quintets & Trios
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album: Nápravník: Piano Quartet in A Minor, Op. 42 & Violin Sonata in G Major, Op. 52
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album: Viola à l’école de Paris
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album: Takács: Orchestral Works
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  track: Piano Quintet in F-Sharp Minor, Op. 30: II. Andante cantabile
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album: Seiber: Works
album: Papandopulo: Works for Piano & Strings
album: Le violoncelle à l'école de Paris
album: Schubert, Weinberg & Others: Double Bass Works
album: Labor: Chamber Works
album: Dubois: Piano Quintet in F Major & Piano Quartet in A Minor
album: Catoire: Chamber Works
album: Oscar Straus: Orchestral Works
album: Scharwenka: Chamber Music
album: Röntgen: Piano Concertos Nos. 3, 6 & 7
album: Labor: Piano Quintet in E Minor, Op. 3 & Piano Quartet in C Major, Op. 6
album: Reizenstein: Piano Concerto No. 2 & Orchestral Works
album: Frid: Symphony No. 3, Double Concerto & Inventions
album: Kahn: Works for Cello & Piano
album: Voyages Sonores
album: Kuula: Works for Violin & Piano
album: Gernsheim: Complete Cello Sonatas
album: Rudolf Moser: Overture to a Church concert Op. 41
album: Antal Doráti: Piano Concerto - Mátyás Seiber: Orchestral Suite from "The Invitation" - Renaissance Dance Suite
album: Gernsheim: Orchestral Works
album: Rössler: Sextet, Op. 16 & Piano Quintet, Op. 28
album: Vilma von Webenau
album: Mathilde Kralik von Meyerswalden: Piano Trio / Violin Sonata/ Nonet

Piano Concerto for the Left Hand No. 1: III. Var. 3
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Piano Concerto for the Left Hand No. 2: III. Finale
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Piano Concerto for the Left Hand No. 1: I. Introduktion - Thema
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Serenade for String Orchestra, Op. 46: Cavatina. Lento cantabile
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additional property: OTSVerifyInstructions
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additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Serenade for String Orchestra, Op. 46: Cavatina. Lento cantabile
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Piano Quintet in F-Sharp Minor, Op. 30: II. Andante cantabile
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duration: PT7M20S
duration ms: 440360
explicit: false
by artist: Carl Frühling
by artist: Daniel Giglberger
by artist: Nina Karmon
by artist: Roland Glassl
by artist: Floris Mijnders
by artist: Oliver Triendl
in album: Frühling: Piano Quintet in F-Sharp Minor, Op. 30 & Piano Quartet in D Major, Op. 35
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Piano Quintet in F-Sharp Minor, Op. 30: II. Andante cantabile
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Piano Quintet in F-Sharp Minor, Op. 30: IV. Finale
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duration: PT6M21S
duration ms: 381680
explicit: false
by artist: Carl Frühling
by artist: Daniel Giglberger
by artist: Nina Karmon
by artist: Roland Glassl
by artist: Floris Mijnders
by artist: Oliver Triendl
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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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f122cc9a364a2880b2fa316fa260bf63e2f74a2a18fd1b31d5c773dfdd897f8. 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/DEAD62106204.
  date published: 2026-07-08T03:53:27Z
audio: Piano Quintet in F-Sharp Minor, Op. 30: IV. Finale
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Piano Quintet in F-Sharp Minor, Op. 30: I. Allegro molto agitato ed appassionato
type: MusicRecording
duration: PT9M2S
duration ms: 542453
explicit: false
by artist: Carl Frühling
by artist: Daniel Giglberger
by artist: Nina Karmon
by artist: Roland Glassl
by artist: Floris Mijnders
by artist: Oliver Triendl
in album: Frühling: Piano Quintet in F-Sharp Minor, Op. 30 & Piano Quartet in D Major, Op. 35
  type: MusicAlbum
  date published: 2022-03-04
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533dc41d65db715119a4adc82897fe3f418f0bc3c7034960eaab5de0278b6892. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEAD62106201.
  date published: 2026-07-31T04:14:58Z
audio: Piano Quintet in F-Sharp Minor, Op. 30: I. Allegro molto agitato ed appassionato
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additional property: OTSBitcoinBlockVerifyURL
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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

Piano Quintet in F-Sharp Minor, Op. 30: III. Scherzo
type: MusicRecording
duration: PT6M38S
duration ms: 398160
explicit: false
by artist: Carl Frühling
by artist: Daniel Giglberger
by artist: Nina Karmon
by artist: Roland Glassl
by artist: Floris Mijnders
by artist: Oliver Triendl
in album: Frühling: Piano Quintet in F-Sharp Minor, Op. 30 & Piano Quartet in D Major, Op. 35
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  date published: 2022-03-04
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T02:19:15Z
audio: Piano Quintet in F-Sharp Minor, Op. 30: III. Scherzo
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isrc code: DEAD62106203
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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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

Piano Quartet in D Major, Op. 35: I. Allegro moderato
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duration: PT10M41S
duration ms: 641773
explicit: false
by artist: Carl Frühling
by artist: Daniel Giglberger
by artist: Roland Glassl
by artist: Floris Mijnders
by artist: Oliver Triendl
in album: Frühling: Piano Quintet in F-Sharp Minor, Op. 30 & Piano Quartet in D Major, Op. 35
  type: MusicAlbum
  date published: 2022-03-04
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15e8ff5e3803ef2303511e0c554530402265decfa86fead13d635c3d3ebf6d5. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/DEAD62106205.
  date published: 2026-07-31T20:22:46Z
audio: Piano Quartet in D Major, Op. 35: I. Allegro moderato
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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

Piano Quartet in D Major, Op. 35: II. Scherzo
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duration: PT5M46S
duration ms: 346653
explicit: false
by artist: Carl Frühling
by artist: Daniel Giglberger
by artist: Roland Glassl
by artist: Floris Mijnders
by artist: Oliver Triendl
in album: Frühling: Piano Quintet in F-Sharp Minor, Op. 30 & Piano Quartet in D Major, Op. 35
  type: MusicAlbum
  date published: 2022-03-04
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T17:29:52Z
audio: Piano Quartet in D Major, Op. 35: II. Scherzo
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Piano Quartet in D Major, Op. 35: III. Larghetto
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Piano Concerto in C Minor, Op. 16: I. Allegro
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Andante
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Violin Sonata in D Minor: Andante
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Seiber: Works
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Le violoncelle à l'école de Paris
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Schubert, Weinberg & Others: Double Bass Works
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Labor: Chamber Works
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Dubois: Piano Quintet in F Major & Piano Quartet in A Minor
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Catoire: Chamber Works
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Oscar Straus: Orchestral Works
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Scharwenka: Chamber Music
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Röntgen: Piano Concertos Nos. 3, 6 & 7
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Labor: Piano Quintet in E Minor, Op. 3 & Piano Quartet in C Major, Op. 6
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Reizenstein: Piano Concerto No. 2 & Orchestral Works
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Frid: Symphony No. 3, Double Concerto & Inventions
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Kahn: Works for Cello & Piano
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Voyages Sonores
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Kuula: Works for Violin & Piano
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Gernsheim: Complete Cello Sonatas
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Rudolf Moser: Overture to a Church concert Op. 41
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Antal Doráti: Piano Concerto - Mátyás Seiber: Orchestral Suite from "The Invitation" - Renaissance Dance Suite
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Gernsheim: Orchestral Works
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Rössler: Sextet, Op. 16 & Piano Quintet, Op. 28
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Vilma von Webenau
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