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description: Pauline Sachse (born 1980) is a German violist, chamber musician, and professor at the University of Music and Theatre Leipzig. Life Born in Hamburg, Sachse received violin lessons from 1988 and be
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album: Viola Galante
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track: Piano Quintet in A Minor, Op. 84: I. Moderato - Allegro
track: Violin Concerto No. 2 in E Major, BWV 1042: I. Allegro
track: Violin Concerto No. 2 in E Major, BWV 1042: II. Adagio
track: Violin Concerto No. 2 in E Major, BWV 1042: III. Allegro assai
track: Violin Concerto No. 1 in A Minor, BWV 1041: I. [Allegro moderato]
track: String Sextet No. 2 in G Major, Op. 36: I. Allegro non troppo
track: String Sextet No. 2 in G Major, Op. 36: II. Scherzo. Allegro non troppo
track: String Sextet No. 2 in G Major, Op. 36: III. Adagio
track: String Sextet No. 2 in G Major, Op. 36: IV. Poco allegro
track: Piano Quintet in A Minor, Op. 84: II. Adagio
track: Piano Quintet in A Minor, Op. 84: III. Andante - Allegro

Piano Quintet in A Minor, Op. 84: I. Moderato - Allegro
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Violin Concerto No. 2 in E Major, BWV 1042: I. Allegro
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Violin Concerto No. 2 in E Major, BWV 1042: II. Adagio
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Violin Concerto No. 2 in E Major, BWV 1042: III. Allegro assai
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Violin Concerto No. 1 in A Minor, BWV 1041: I. [Allegro moderato]
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String Sextet No. 2 in G Major, Op. 36: I. Allegro non troppo
type: MusicRecording
duration: PT14M38S
duration ms: 878186
explicit: false
by artist: Johannes Brahms
by artist: Julia-Maria Kretz
by artist: Isabelle Faust
by artist: Pauline Sachse
by artist: Stefan Fehlandt
by artist: Christoph Richter
by artist: Xenia Jankovic
in album: Brahms: Violin Concerto; String Sextet No. 2
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: german-romanticism
genre: late-romantic-era
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31978930358aa28af15f565c89929e1dcc7c780e60c992a4ed88a0539784bc04. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/FRZ141002040.
  date published: 2026-07-30T19:11:09Z
audio: String Sextet No. 2 in G Major, Op. 36: I. Allegro non troppo
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additional property: CopyrightID
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additional property: OTSHash
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

String Sextet No. 2 in G Major, Op. 36: II. Scherzo. Allegro non troppo
type: MusicRecording
duration: PT6M41S
duration ms: 401933
explicit: false
by artist: Johannes Brahms
by artist: Isabelle Faust
by artist: Julia-Maria Kretz
by artist: Stefan Fehlandt
by artist: Pauline Sachse
by artist: Christoph Richter
by artist: Xenia Jankovic
in album: Brahms: Violin Concerto; String Sextet No. 2
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: german-romanticism
genre: late-romantic-era
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5650a83d0dae3be6ae4048ea7098b8ff0e58b0cf93ffffea0a666647c09e5b8a. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/FRZ141002050.
  date published: 2026-07-31T13:50:38Z
audio: String Sextet No. 2 in G Major, Op. 36: II. Scherzo. Allegro non troppo
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isrc code: FRZ141002050
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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

String Sextet No. 2 in G Major, Op. 36: III. Adagio
type: MusicRecording
duration: PT8M18S
duration ms: 498653
explicit: false
by artist: Johannes Brahms
by artist: Isabelle Faust
by artist: Julia-Maria Kretz
by artist: Stefan Fehlandt
by artist: Pauline Sachse
by artist: Christoph Richter
by artist: Xenia Jankovic
in album: Brahms: Violin Concerto; String Sextet No. 2
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: german-romanticism
genre: late-romantic-era
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77cc95335c1762797ccec8adffcded9947e0f78e8d9c810377eadcd6af0b2c28. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FRZ141002060.
  date published: 2026-07-30T15:42:38Z
audio: String Sextet No. 2 in G Major, Op. 36: III. Adagio
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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

String Sextet No. 2 in G Major, Op. 36: IV. Poco allegro
type: MusicRecording
duration: PT8M4S
duration ms: 484373
explicit: false
by artist: Johannes Brahms
by artist: Isabelle Faust
by artist: Julia-Maria Kretz
by artist: Stefan Fehlandt
by artist: Pauline Sachse
by artist: Christoph Richter
by artist: Xenia Jankovic
in album: Brahms: Violin Concerto; String Sextet No. 2
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: german-romanticism
genre: late-romantic-era
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2319100a5ace84da8053eb1cea24515a705376ff9796e3f6431cecda65583899. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ141002070.
  date published: 2026-07-31T15:20:15Z
audio: String Sextet No. 2 in G Major, Op. 36: IV. Poco allegro
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  additional property: Danceability
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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 A Minor, Op. 84: II. Adagio
type: MusicRecording
duration: PT12M1S
duration ms: 721373
explicit: false
by artist: Edward Elgar
by artist: Marie-Elisabeth Hecker
by artist: Caroline Widmann
by artist: David McCarroll
by artist: Pauline Sachse
by artist: Martin Helmchen
in album: Elgar: Cello Concerto & Piano Quintet
  type: MusicAlbum
  date published: 2018-03-23
genre: classical
genre: late-romantic-era
genre: british-modern-classical
genre: victorian-britain
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d7d8e150bc05ecf5676452a097fcffd15a7da7d9ab07ba473d68cebd6bfb15. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/FR50X1628307.
  date published: 2026-07-29T12:41:21Z
audio: Piano Quintet in A Minor, Op. 84: II. Adagio
  type: AudioObject
  additional property: Tempo (BPM)
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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: Valence (Positivity)
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  additional property: Loudness (dB)
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isrc code: FR50X1628307
additional property: CopyrightID
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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 Quintet in A Minor, Op. 84: III. Andante - Allegro
type: MusicRecording
duration: PT10M43S
duration ms: 643253
explicit: false
by artist: Edward Elgar
by artist: Marie-Elisabeth Hecker
by artist: Caroline Widmann
by artist: David McCarroll
by artist: Pauline Sachse
by artist: Martin Helmchen
in album: Elgar: Cello Concerto & Piano Quintet
  type: MusicAlbum
  date published: 2018-03-23
genre: classical
genre: late-romantic-era
genre: british-modern-classical
genre: victorian-britain
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f93f3448b757b30ffcc9f402af86df12d3d06c0f4504edcb4306bf229d1c2d. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FR50X1628308.
  date published: 2026-07-31T05:17:02Z
audio: Piano Quintet in A Minor, Op. 84: III. Andante - Allegro
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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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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isrc code: FR50X1628308
additional property: CopyrightID
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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