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album: Schumann: Poetica
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album: Brahms: Opus 38 & 99 (Sonatas for Piano and Cello)
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Fünf Gesänge, Op. 105 No. 1: Wie Melodien zieht es mir
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Cello Sonata No. 1, Op. 38 in E Minor: I. Allegro non troppo
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Hungarian Dance No. 5 in F Minor
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Adagio & Allegro, Op. 70: I. Langsam, mit innigem Ausdruck
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Trio for Piano, Clarinet and Cello in B-Flat Major, Op. 11 "Gassenhauer": II. Adagio
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Trio for Piano, Clarinet and Cello in B-Flat Major, Op. 11 "Gassenhauer": I. Allegro con brio
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Trio for Piano, Clarinet and Cello in B-Flat Major, Op. 11 "Gassenhauer": III. Tema con variazioni
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Nonetto: I. Allegro
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Nonetto: III. Allegro con spirito
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Louis Vierne - Quintette pour piano, 2 violons, alto et violoncelle Op. 42: I - Poco lento
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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

Louis Vierne - Quintette pour piano, 2 violons, alto et violoncelle Op. 42: II - Larghetto sostenuto
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duration: PT12M8S
duration ms: 728533
explicit: false
by artist: Louis Vierne
by artist: Eric Le Sage
by artist: Daishin Kashimoto
by artist: Natalia Lomeiko
by artist: Yuri Zhislin
by artist: Claudio Bohórquez
in album: Concert de Chausson - Quintette de Vierne
  type: MusicAlbum
  date published: 2024-10-18
genre: french-romanticism
genre: classical-organ
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd9adaeb0b0a470bb0f8fd20946a6cf02a9b02086e5b890a6a03ba9981a89f5. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR07X2400142.
  date published: 2026-07-31T02:19:15Z
audio: Louis Vierne - Quintette pour piano, 2 violons, alto et violoncelle Op. 42: II - Larghetto sostenuto
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additional property: CopyrightID
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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

Louis Vierne - Quintette pour piano, 2 violons, alto et violoncelle Op. 42: III - Maestoso
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duration: PT9M27S
duration ms: 567853
explicit: false
by artist: Louis Vierne
by artist: Eric Le Sage
by artist: Daishin Kashimoto
by artist: Natalia Lomeiko
by artist: Yuri Zhislin
by artist: Claudio Bohórquez
in album: Concert de Chausson - Quintette de Vierne
  type: MusicAlbum
  date published: 2024-10-18
genre: french-romanticism
genre: classical-organ
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T00:26:26Z
audio: Louis Vierne - Quintette pour piano, 2 violons, alto et violoncelle Op. 42: III - Maestoso
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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

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 0x4deb090af51a43c2f4c5fdfeb3e51291a45236ba07ac7adc77f9f28c6cb5b5c9. 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/DEA340500296.
date published: 2026-07-08T03:53:27Z

Dvořák: Violin Sonatina in G Major, Op. 100, B. 183 "Indian Lament": I. Allegro risoluto (Live, 2004)
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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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Dvořák: Violin Sonatina in G Major, Op. 100, B. 183 "Indian Lament": II. Larghetto (Live, 2004)
type: MusicRecording
duration: PT4M5S
duration ms: 245506
explicit: false
by artist: Antonín Dvořák
by artist: Lars Vogt
by artist: Antje Weithaas
in album: Dvořák: Sonatine, Op. 100 - Tchaikovsky: Piano Trio, Op. 50
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  date published: 2005-05-20
genre: classical
genre: late-romantic-era
genre: czech-classical
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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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ffbaf44bdfa7966114aac487eaef7d6fa0935965774a1a658a09edaa28d1fc. 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/DEA340500297.
  date published: 2026-07-08T03:53:27Z
audio: Dvořák: Violin Sonatina in G Major, Op. 100, B. 183 "Indian Lament": II. Larghetto (Live, 2004)
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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  additional property: Speechiness
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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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Dvořák: Violin Sonatina in G Major, Op. 100, B. 183 "Indian Lament": III. Scherzo. Molto vivace (Live, 2004)
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duration: PT2M55S
duration ms: 175253
explicit: false
by artist: Antonín Dvořák
by artist: Lars Vogt
by artist: Antje Weithaas
in album: Dvořák: Sonatine, Op. 100 - Tchaikovsky: Piano Trio, Op. 50
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genre: classical
genre: late-romantic-era
genre: czech-classical
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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 0x93b6688c76559dcc27066ec4883a6b0bef33a5d2ad5e7e613d17f2b46ffb5d8a. 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/DEA340500298.
  date published: 2026-07-08T03:53:27Z
audio: Dvořák: Violin Sonatina in G Major, Op. 100, B. 183 "Indian Lament": III. Scherzo. Molto vivace (Live, 2004)
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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: Speechiness
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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Strauss: Don Juan, Till Eulenspiegel, Don Quixote
type: MusicAlbum
date published: 2004-03-02

Nino Rota: Chamber Music
type: MusicAlbum
date published: 2021-07-09
track: Valzer sul nome Bach: No. 1, Circus-Valzer
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  by artist: Eric Le Sage
  in album: Nino Rota: 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
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc776c7c4450d0786e3d66c691b1f2757e743105d0b3cb767fba44dea6a7e0b3e. 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/FR50X2074604.
    date published: 2026-07-08T03:53:27Z
  audio: Valzer sul nome Bach: No. 1, Circus-Valzer
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track: Piccola offerta musicale
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T08:56:20Z
  audio: Piccola offerta musicale
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