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description: Baldassare Galuppi (18 October 17063 January 1785) was a Venetian composer, born on the island of Burano in the Venetian Republic. He belonged to a generation of composers, including Johann Adolph Has
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  track: Piano Sonata No. 9 in F Minor: I. Andante spiritoso
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    audio: Rondo in F Major, K. 494
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  track: Sonata No. 42 in D Minor (Arr. Ólafsson)
  track: Fantasia in D Minor, K. 397 (Fragment)
  track: Rondo in D Major, K. 485
  track: Sonata No. 55 in A Minor (Arr. Ólafsson)
  track: Piano Sonata in B Minor, Hob.XVI:32: I. Allegro moderato
  track: Piano Sonata in B Minor, Hob.XVI:32: II. Menuet
  track: Piano Sonata in B Minor, Hob.XVI:32: III. Finale. Presto
  track: Kleine Gigue in G Major, K. 574
  track: Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": I. Allegro
  track: Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": II. Andante
  track: Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": III. Rondo. Allegretto
  track: Adagio in E Flat (Arr. Ólafsson from String Quintet No. 3 in G Minor, K. 516)
  track: Piano Sonata No. 34 in C Minor: I. Larghetto
  track: Piano Sonata No. 14 in C Minor, K. 457: I. Molto allegro
  track: Piano Sonata No. 14 in C Minor, K. 457: II. Adagio
  track: Piano Sonata No. 14 in C Minor, K. 457: III. Allegro assai
  track: Adagio in B Minor, K. 540
  track: Ave verum corpus, K. 618 (Transcr. Liszt for Solo Piano)
album: Galuppi, Boccherini & Cambini: Quartetti per archi
album: Italian Flute Concertos: Vivaldi, Tartini, Sammartini, Pergolesi & Galuppi
album: Galuppi: Il mondo alla roversa (The World Turned Topsy-Turvey)
album: Galuppi Complete Concertos for Strings
album: Galuppi: Gustavo I, Re Di Svezia
album: Florilège de la flûte
album: Galuppi: Sonatas for harpsichord, vol. II
album: Galuppi Keyboard Project - Keyboard Sonatas, Vol. 3
album: Galuppi: 8 Keyboard Sonatas
album: Galuppi Keyboard Project - Keyboard Sonatas, Vol. 2
album: Galuppi: Colours of Venice (Keyboard Sonatas)
album: Galuppi: Harpsichord Sonatas
album: Galuppi Keyboard Project - Keyboard Sonatas, Vol. 1
album: Galuppi: 8 Sonatas for Harpsichord & Organ
album: Galuppi: Piano Sonatas
album: Galuppi: Jahel
album: Galuppi: L'amante di tutte (Live)
album: Galuppi: Complete Piano Sonatas, Vol. 4
album: Galuppi Sonate
album: Galuppi: Organ Sonatas
album: Galuppi: 12 Piano Sonatas
album: Galuppi: 6 Harpsichord Sonatas, Op. 1
album: Galuppi: Il mondo della luna (The World of the Moon)
album: Galuppi: Il mondo della luna
album: Galuppi: Il Filosofo di Campagna
album: Galuppi: Sonate
album: Galuppi: L'Oracolo Del Vaticano (The Sage of the Vatican)
album: Galuppi: Confitebur / Nunc Dimittis / Laudate Pueri
album: Galuppi: Caffe Di Campagna (Ii)
album: Galuppi, B.: Clemenza Di Tito (La) [Opera]
album: Galuppi: Gloria - Regina Coeli - Aire da Chiesa per soprano
album: Galuppi, B.: Complete Piano Sonatas, Vol. 3
album: Galuppi, B.: Complete Piano Sonatas, Vol. 2
album: Galuppi, B.: Complete Piano Sonatas, Vol. 1
album: Galuppi: 7 Concerti a 4
album: Galuppi: Passatempo al cembalo
album: Galuppi: Keyboard Sonatas, Vol. 3
album: Galuppi: Sei sonate a tre
album: Galuppi: Keyboard Sonatas, Vol. 1
album: Galuppi: Trio Sonatas
track: Passatempo al cembalo, Sonata No. 3 in C Minor: II. Allegro
track: Penelope / Act 2: "A questa bianca mano"
track: Concerto a 4 en ut mineur: III Andante

Piano Sonata No. 9 in F Minor: I. Andante spiritoso
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Piano Sonata No. 34 in C Minor: I. Larghetto
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Sonata No. 42 in D Minor (Arr. Ólafsson)
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  additional property: Time Signature
    type: PropertyValue
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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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Fantasia in D Minor, K. 397 (Fragment)
type: MusicRecording
duration: PT5M47S
duration ms: 347314
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Víkingur Ólafsson
in album: Mozart & Contemporaries
  type: MusicAlbum
  date published: 2021-09-03
genre: classical
genre: classical-era
isrc code: DEN962100640
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
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962100640
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0x752ae86e2ff2a70aec34ec78104869f257cfbc78e07ff6aa535549fd08f14178. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEN962100640.
  date published: 2026-06-13T13:32:09Z
audio: Fantasia in D Minor, K. 397 (Fragment)
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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
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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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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Rondo in D Major, K. 485
type: MusicRecording
duration: PT3M46S
duration ms: 226196
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Víkingur Ólafsson
in album: Mozart & Contemporaries
  type: MusicAlbum
  date published: 2021-09-03
genre: classical
genre: classical-era
isrc code: DEN962100650
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
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962100650
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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 0x7041ee772d2516e8f726f83472692a696b5aeed3bc8992168ee3d3656f82c36e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEN962100650.
  date published: 2026-06-13T15:41:10Z
audio: Rondo in D Major, K. 485
  type: AudioObject
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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
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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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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Sonata No. 55 in A Minor (Arr. Ólafsson)
type: MusicRecording
duration: PT2M44S
duration ms: 164442
explicit: false
by artist: Domenico Cimarosa
by artist: Víkingur Ólafsson
in album: Mozart & Contemporaries
  type: MusicAlbum
  date published: 2021-09-03
genre: classical
genre: classical-piano
genre: requiem
isrc code: DEN962100660
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
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962100660
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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 0xd7c5ad6eafe7b867a803ca7c7bbf90665b1f38a4f75fe6061034ad13f4eeb657. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEN962100660.
  date published: 2026-06-13T15:41:10Z
audio: Sonata No. 55 in A Minor (Arr. Ólafsson)
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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
    type: PropertyValue
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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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Piano Sonata in B Minor, Hob.XVI:32: I. Allegro moderato
type: MusicRecording
duration: PT3M3S
duration ms: 183877
explicit: false
by artist: Joseph Haydn
by artist: Víkingur Ólafsson
in album: Mozart & Contemporaries
  type: MusicAlbum
  date published: 2021-09-03
isrc code: DEN962100670
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
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962100670
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0xaa00dff3e8fa0aa0835a4ea792e9f261e742ddd1cb731ca6781bc697cee3f009. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEN962100670.
  date published: 2026-06-13T13:32:09Z
audio: Piano Sonata in B Minor, Hob.XVI:32: I. Allegro moderato
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.363
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Piano Sonata in B Minor, Hob.XVI:32: II. Menuet
type: MusicRecording
duration: PT2M40S
duration ms: 160833
explicit: false
by artist: Joseph Haydn
by artist: Víkingur Ólafsson
in album: Mozart & Contemporaries
  type: MusicAlbum
  date published: 2021-09-03
isrc code: DEN962100680
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T06:16:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4bcbe0cd4cf50f89d29b8fc450170f9f0bab34621a998e737ff492ee8d2954b7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962100680
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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 0x4bcbe0cd4cf50f89d29b8fc450170f9f0bab34621a998e737ff492ee8d2954b7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEN962100680.
  date published: 2026-06-13T15:41:10Z
audio: Piano Sonata in B Minor, Hob.XVI:32: II. Menuet
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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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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Piano Sonata in B Minor, Hob.XVI:32: III. Finale. Presto
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duration: PT2M9S
duration ms: 129427
explicit: false
by artist: Joseph Haydn
by artist: Víkingur Ólafsson
in album: Mozart & Contemporaries
  type: MusicAlbum
  date published: 2021-09-03
isrc code: DEN962100690
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T06:12:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xebc8314552d1b568fde2093babac881b998f3f49a86fcb063db60add48ad1dde
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962100690
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0xebc8314552d1b568fde2093babac881b998f3f49a86fcb063db60add48ad1dde. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEN962100690.
  date published: 2026-06-13T13:32:09Z
audio: Piano Sonata in B Minor, Hob.XVI:32: III. Finale. Presto
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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: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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Kleine Gigue in G Major, K. 574
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duration: PT1M40S
duration ms: 100422
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Víkingur Ólafsson
in album: Mozart & Contemporaries
  type: MusicAlbum
  date published: 2021-09-03
genre: classical
genre: classical-era
isrc code: DEN962100700
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd63c28b37e4cae8b79d917989c15165753bc5f28f030e66ede3e61fa7ce619f1
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962100700
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 0xd63c28b37e4cae8b79d917989c15165753bc5f28f030e66ede3e61fa7ce619f1. 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/DEN962100700.
  date published: 2026-07-02T03:30:09Z
audio: Kleine Gigue in G Major, K. 574
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": I. Allegro
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by artist: Víkingur Ólafsson
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popularity: 31
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genre: classical-era
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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: 2026-06-13T15:41:10Z
audio: Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": I. Allegro
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Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": II. Andante
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by artist: Víkingur Ólafsson
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popularity: 32
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": II. Andante
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Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": III. Rondo. Allegretto
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by artist: Víkingur Ólafsson
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genre: classical
genre: classical-era
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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: 2026-07-02T03:30:09Z
audio: Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": III. Rondo. Allegretto
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Adagio in E Flat (Arr. Ólafsson from String Quintet No. 3 in G Minor, K. 516)
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by artist: Víkingur Ólafsson
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Adagio in E Flat (Arr. Ólafsson from String Quintet No. 3 in G Minor, K. 516)
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Piano Sonata No. 14 in C Minor, K. 457: I. Molto allegro
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by artist: Víkingur Ólafsson
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popularity: 29
genre: classical
genre: classical-era
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Piano Sonata No. 14 in C Minor, K. 457: I. Molto allegro
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Piano Sonata No. 14 in C Minor, K. 457: II. Adagio
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by artist: Víkingur Ólafsson
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genre: classical
genre: classical-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: Piano Sonata No. 14 in C Minor, K. 457: II. Adagio
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Piano Sonata No. 14 in C Minor, K. 457: III. Allegro assai
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genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Piano Sonata No. 14 in C Minor, K. 457: III. Allegro assai
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Adagio in B Minor, K. 540
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Ave verum corpus, K. 618 (Transcr. Liszt for Solo Piano)
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Italian Flute Concertos: Vivaldi, Tartini, Sammartini, Pergolesi & Galuppi
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OpenTimestamps Proof of Existence
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Pergolesi: Flute Concerto in G Major, P. 33: II. Adagio (Also Attributed to Paganelli)
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Galuppi: Il mondo alla roversa (The World Turned Topsy-Turvey)
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Bach, JS: Suite in C Minor, BWV 997: II. Fugue (Arr. Veyron-Lacroix for Flute and Harpsichord)
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Leclair: Flute Concerto in C Major, Op. 7 No. 3: I. Allegro
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Galuppi: Sonatas for harpsichord, vol. II
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Galuppi Keyboard Project - Keyboard Sonatas, Vol. 3
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date published: 2024-08-20

Galuppi: 8 Keyboard Sonatas
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date published: 2023-10-11

Galuppi Keyboard Project - Keyboard Sonatas, Vol. 2
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date published: 2023-09-11

Galuppi: Colours of Venice (Keyboard Sonatas)
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date published: 2023-01-27

Galuppi: Harpsichord Sonatas
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date published: 2023-01-06

Galuppi Keyboard Project - Keyboard Sonatas, Vol. 1
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Galuppi: 8 Sonatas for Harpsichord & Organ
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Galuppi: L'amante di tutte (Live)
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Galuppi: Complete Piano Sonatas, Vol. 4
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Galuppi Sonate
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Galuppi: 12 Piano Sonatas
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Galuppi: 6 Harpsichord Sonatas, Op. 1
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Galuppi: Il mondo della luna (The World of the Moon)
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Galuppi: Il mondo della luna
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Galuppi: Il Filosofo di Campagna
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Galuppi: Sonate
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Galuppi: L'Oracolo Del Vaticano (The Sage of the Vatican)
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Galuppi: Confitebur / Nunc Dimittis / Laudate Pueri
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Galuppi: Caffe Di Campagna (Ii)
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Galuppi, B.: Clemenza Di Tito (La) [Opera]
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Galuppi: Gloria - Regina Coeli - Aire da Chiesa per soprano
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Galuppi, B.: Complete Piano Sonatas, Vol. 3
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Galuppi, B.: Complete Piano Sonatas, Vol. 2
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Galuppi, B.: Complete Piano Sonatas, Vol. 1
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Galuppi: 7 Concerti a 4
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Galuppi: Passatempo al cembalo
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Galuppi: Keyboard Sonatas, Vol. 3
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Galuppi: Sei sonate a tre
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Galuppi: Keyboard Sonatas, Vol. 1
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Galuppi: Trio Sonatas
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Concerto a 4 en ut mineur: III Andante
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by artist: Baldassare Galuppi
by artist: Akademie für Alte Musik Berlin
by artist: René Jacobs
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  date published: 2002
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