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  track: 15 Improvisations, FP 63: No. 1 in B minor
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  track: 15 Improvisations, FP 170: No. 13 in A Minor
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  track: Three Novelettes, FP 47/173: Novelette in C Major
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album: Patrick Castillo: The Quality of Mercy
album: Music@Menlo Live '11: Through Brahms, Vol. 2
album: Songs of Summer: Piano Solo, Vol. 2
album: 50 Ultimate Piano Classics
album: Music@Menlo Live, Russian Reflections, Vol. 1
album: Music@Menlo Live, Russian Reflections, Vol. 7
album: Spring Soiree: Classical Piano
album: Piano Solo: Romanze, Vol. 1
album: Lucille Chung: Liszt
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15 Improvisations, FP 170: No. 13 in A Minor
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15 Improvisations, FP 176: No. 15 in C Minor, "Hommage à Edith Piaf"
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  date published: 2026-07-02T03:55:08Z
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Three Novelettes, FP 47/173: Novelette in C Major
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Three Novelettes, FP 47/173: Novelette sur un thème de Manuel de Falla
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in album: Poulenc: Works for Piano Solo and Duo
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  date published: 2016-05-06
genre: classical
genre: early-modern-classical
genre: neoclassicism
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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
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T11:38:34Z
audio: Three Novelettes, FP 47/173: Novelette sur un thème de Manuel de Falla
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Sonata for Four Hands, FP 8: I. Prelude
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duration: PT2M1S
duration ms: 121480
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by artist: Lucille Chung
by artist: Alessio Bax
in album: Poulenc: Works for Piano Solo and Duo
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  date published: 2016-05-06
genre: classical
genre: early-modern-classical
genre: neoclassicism
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Sonata for Four Hands, FP 8: I. Prelude
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Waltz in E Major, Op. 39 No. 2
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duration: PT1M4S
duration ms: 64319
explicit: false
by artist: Johannes Brahms
by artist: Alessio Bax
by artist: Lucille Chung
in album: Lullabies for Mila
  type: MusicAlbum
  date published: 2016-01-08
genre: classical
genre: german-romanticism
genre: late-romantic-era
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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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: 2026-07-02T11:38:34Z
audio: Waltz in E Major, Op. 39 No. 2
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Instrumentalness
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Liveness
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Valence (Positivity)
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Loudness (dB)
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Key Name
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Mode Name
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15 Improvisations, FP 63: No. 3 in B minor
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duration: PT1M36S
duration ms: 96306
explicit: false
by artist: Francis Poulenc
by artist: Lucille Chung
in album: Poulenc: Works for Piano Solo and Duo
  type: MusicAlbum
  date published: 2016-05-06
genre: classical
genre: early-modern-classical
genre: neoclassicism
isrc code: GBLLH1645503
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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
  type: PropertyValue
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e3afb29aa4d840c27cdcdba94ef5daf637e223be5ab1c9c804a4c04c433f18. 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/GBLLH1645503.
  date published: 2026-07-08T03:53:27Z
audio: 15 Improvisations, FP 63: No. 3 in B minor
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15 Improvisations, FP 63: : No. 4 in A-Flat Major
type: MusicRecording
duration: PT1M30S
duration ms: 90200
explicit: false
by artist: Francis Poulenc
by artist: Lucille Chung
in album: Poulenc: Works for Piano Solo and Duo
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genre: classical
genre: early-modern-classical
genre: neoclassicism
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: 15 Improvisations, FP 63: : No. 4 in A-Flat Major
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Sonata for Four Hands, FP 8: III. Final
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duration: PT1M57S
duration ms: 117946
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by artist: Lucille Chung
by artist: Alessio Bax
in album: Poulenc: Works for Piano Solo and Duo
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genre: classical
genre: early-modern-classical
genre: neoclassicism
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additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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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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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2e07057389b4f74ad0bc034d7b130b553aa9aba641630b4dfecad1436f30dc. 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/GBLLH1645521.
  date published: 2026-07-08T03:20:19Z
audio: Sonata for Four Hands, FP 8: III. Final
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Concerto in D Minor for Two Pianos, FP 61: II. Larghetto
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duration: PT5M23S
duration ms: 323733
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by artist: Francis Poulenc
by artist: Lucille Chung
by artist: Alessio Bax
in album: Poulenc: Works for Piano Solo and Duo
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genre: classical
genre: early-modern-classical
genre: neoclassicism
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additional property: CopyrightID
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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
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Sonata No. 14 in C-Sharp Minor, Op. 27, No. 2 "Moonlight": II. Allegretto
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Violin Sonata No. 1 in G Minor, BWV 1001: Siciliana (Trans. Leopold Godowsky)
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Violin Sonata No. 2 in A Minor, BWV 1003: Andante (Trans. Alexander Siloti)
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Piano Concerto No. 27 in B-Flat Major, K. 595: II. Larghetto
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Stravinsky, Brahms & Piazzolla: Works for Piano-Four-Hands
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Prélude à l'après-midi d'un faune, L. 86 (Arr. for Four Hands by Maurice Ravel)
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La plus que lente, L. 121 (Arr. for Four Hands by Léon Roques)
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