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description: Ilya Haimovich Grubert (, ; born 13 May 1954 in Riga) is a classical violinist and professor. Biography Ilya Grubert began his violin studies at the Emīls Dārziņš Music School. He later studied at t
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Flute and Harp Concerto in C Major, K. 299: III. Rondò. Allegro
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Flute Concerto No. 1 in G Major, K. 313: III. Rondò - Minuetto
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track: Piano Sonata in B-Flat Major, K. 333: II. Andante cantabile
track: Piano Sonata in B-Flat Major, K. 333: III. Allegretto grazioso
track: Flute Concerto No. 1 in G Major, K. 313: III. Rondò - Minuetto
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track: Piano Concerto No. 21 in C Major, K. 467: II. Andante
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track: Piano Concerto No. 19 in F Major, K. 459: III. Allegro assai
track: Flute Concerto No. 2 in D Major, K. 314: II. Andante ma non troppo
track: Symphony No. 41 in C Major, K. 551 "Jupiter": II. Andante cantabile
track: Divertimento No. 1 in E-Flat Major, K. 113: II. Andante - Live Recording

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Flute and Harp Concerto in C Major, K. 299: III. Rondò. Allegro
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Piano Sonata in B-Flat Major, K. 333: III. Allegretto grazioso
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subject of: OpenTimestamps Proof of Existence
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Flute Concerto No. 1 in G Major, K. 313: III. Rondò - Minuetto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:53:57Z
audio: Flute Concerto No. 1 in G Major, K. 313: III. Rondò - Minuetto
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Andante for Flute and Orchestra in C Major, K. 315
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-21T21:27:28Z
audio: Andante for Flute and Orchestra in C Major, K. 315
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Piano Concerto No. 21 in C Major, K. 467: II. Andante
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  date published: 2026-07-08T03:53:27Z
audio: Piano Concerto No. 21 in C Major, K. 467: II. Andante
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Piano Sonata No. 17 in B-Flat Major, K. 570: II. Adagio
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audio: Piano Sonata No. 17 in B-Flat Major, K. 570: II. Adagio
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Piano Concerto No. 19 in F Major, K. 459: III. Allegro assai
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  date published: 2026-07-07T14:04:01Z
audio: Piano Concerto No. 19 in F Major, K. 459: III. Allegro assai
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Flute Concerto No. 2 in D Major, K. 314: II. Andante ma non troppo
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subject of: OpenTimestamps Proof of Existence
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Symphony No. 41 in C Major, K. 551 "Jupiter": II. Andante cantabile
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Symphony No. 41 in C Major, K. 551 "Jupiter": II. Andante cantabile
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Divertimento No. 1 in E-Flat Major, K. 113: II. Andante - Live Recording
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Divertimento No. 1 in E-Flat Major, K. 113: II. Andante - Live Recording
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Classics of the Romantic Era
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track: Les contes d'Hoffmann, Act III: Belle nuit, ô nuit d'amour "Barcarolle" (Instrumental Version)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
  audio: Les contes d'Hoffmann, Act III: Belle nuit, ô nuit d'amour "Barcarolle" (Instrumental Version)
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track: Carmen Suite No. 2: II. Habanera
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
  audio: Carmen Suite No. 2: II. Habanera
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track: Suite bergamasque, L. 75: III. Clair de lune
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  subject of: OpenTimestamps Proof of Existence
  audio: Suite bergamasque, L. 75: III. Clair de lune
track: Ave Maria, CG 89a
track: Liebesträume, S. 541: No. 3, Oh lieb, so lang du lieben kannst

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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:22:41Z

Suite bergamasque, L. 75: III. Clair de lune
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Ave Maria, CG 89a
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subject of: OpenTimestamps Proof of Existence
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audio: Ave Maria, CG 89a
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Liebesträume, S. 541: No. 3, Oh lieb, so lang du lieben kannst
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Romantic Era Classics
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Classical Violin 100
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The Essentials: Works for Violin
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:22:41Z

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    date published: 2026-07-08T08:56:20Z
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    date published: 2026-07-08T03:53:27Z
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track: Nocturne in C Minor, Op. Posth.
track: Carmen Fantasy for Violin and Orchestra, Op. 25
track: Vocalise, Op. 34
track: Alt-Wiener Tanzweisen (Old Viennese Melodies): III. Schön Rosmarin (Lovely Rosemary)

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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:53:27Z

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Vocalise, Op. 34
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100 Most Relaxing Classical Music In The Universe
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Suite No. 3 In D Major BWV 1068: Air
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The Four Seasons, Concerto No. 4 In F Minor (L'inverno / Winter) RV. 297 (Op. 8, No. 4): II. Largo
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Piano Concerto In A Minor, Op. 16: II. Adagio
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Tales Of Hoffmann: Barcarolle
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Thais: Meditation
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Prelude To The Afternoon Of A Faun (Prelude A I'apres-Midi D'un Faune)
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Piano Sonata No. 14 In C-Sharp Minor Op 27, No. 2 "Moonlight": I. Adagio Sostenuto
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Songs Without Words, Op. 62: No. 6 in A Major: Molto allegro vivace "Fruhlinglied" (Spring Melody)
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Dance Of The Blessed Spirits
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Piano Concerto No. 21 In C K. 467: II. Andante
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Water Music Suite No. 1 In F Major, HV 348: V. Air
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Menuetto
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Well Tempered Klavier, Book I, No. 22 BWV 867
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Ave Maria
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The Four Seasons: Concerto No. 1 In E Major, Op. 8, RV 269, "Spring": I. Allegro (Danza Pastorale)
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Kinderszenen, Op. 15: No. 7. Traumerei
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subject of: OpenTimestamps Proof of Existence
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audio: Kinderszenen, Op. 15: No. 7. Traumerei
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Ballade No. 1 In G Minor, Op. 23
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by artist: Makiko Takeda
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subject of: OpenTimestamps Proof of Existence
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audio: Ballade No. 1 In G Minor, Op. 23
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Symphony No. 5 In C Minor, Op. 67 "Fate": II. Andante Con Moto
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-21T20:47:54Z
audio: Symphony No. 5 In C Minor, Op. 67 "Fate": II. Andante Con Moto
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Adagio in G Minor
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T14:50:41Z
audio: Adagio in G Minor
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Carnival Of The Animals: The Swan
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audio: Carnival Of The Animals: The Swan
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Valse Triste, Op 44
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  date published: 2026-07-08T03:53:27Z
audio: Valse Triste, Op 44
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Pavane For A Dead Princess
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Piano Concerto No. 2 In F Minor Op 21: II. Larghetto
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OTSHash
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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value: https://blockstream.info/api/block-height/956312

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0730504

OTSTimestamp
type: PropertyValue
value: 2026-07-02T05:09:12Z

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 0x137eeefd72aeb2a17c4c9e149b1f6b6f3084226b57ce2cce0f6b11f582faf9fd. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SEWDL0730504.
date published: 2026-07-02T05:09:12Z

Turandot, Act III: Nessun dorma
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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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Nocturnes, Op. 9: No. 2, Andante in E-Flat Major
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duration: PT4M53S
duration ms: 293160
explicit: false
by artist: Frédéric Chopin
by artist: Finghin Collins
in album: The 99 Most Essential Classics of the Romantic Era
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  date published: 2005-09-15
genre: classical
genre: early-romantic-era
genre: polish-classical
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL9750006
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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c38d5fa357f15b52b9ef5added3acb1892998329184799cf63a15d6a6806d95. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SEWDL9750006.
  date published: 2026-07-02T03:55:08Z
audio: Nocturnes, Op. 9: No. 2, Andante in E-Flat Major
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Symphony No. 5, Pt. 3: IV. Adagietto
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duration: PT11M0S
duration ms: 660706
explicit: false
by artist: Gustav Mahler
by artist: David Parry
by artist: London Philharmonic Orchestra
in album: The 99 Most Essential Classics of the Romantic Era
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  date published: 2005-09-15
genre: classical
genre: orchestra
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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
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL9750050
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
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 0xe7290a1b57429dfa1b557a1c583a3396c5d5f072a1052126f5b531cc56fdcfb9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SEWDL9750050.
  date published: 2026-07-02T05:09:12Z
audio: Symphony No. 5, Pt. 3: IV. Adagietto
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Carmen Suite No. 2: II. Habanera
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duration: PT2M12S
duration ms: 132533
explicit: false
by artist: Georges Bizet
by artist: David Parry
by artist: London Philharmonic Orchestra
in album: The 99 Most Essential Classics of the Romantic Era
  type: MusicAlbum
  date published: 2005-09-15
genre: classical
genre: opera
isrc code: SEWDL9750024
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
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL9750024
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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706709ae31ad4a967b3d5e38bed8d320c885e131fb5ddfc45718e9df08683f88. 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/SEWDL9750024.
  date published: 2026-06-13T15:41:10Z
audio: Carmen Suite No. 2: II. Habanera
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  additional property: Tempo (BPM)
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Romeo and Juliet, Fantasy Overture, Op. 64a
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duration: PT22M28S
duration ms: 1348186
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by artist: Pyotr Ilyich Tchaikovsky
by artist: Jansug Kakhidze
by artist: Tbilisi Symphony Orchestra
in album: The 99 Most Essential Classics of the Romantic Era
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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
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additional property: OTSVerificationAPI
  type: PropertyValue
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807a0a003e2e4e6898b84e3d23f0609dcc332ac78251ae73dd934438926fb276. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEB790301886.
  date published: 2026-07-02T05:09:12Z
audio: Romeo and Juliet, Fantasy Overture, Op. 64a
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Suite bergamasque, L. 75: III. Clair de lune
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duration: PT5M13S
duration ms: 313906
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by artist: Claude Debussy
by artist: Finghin Collins
in album: The 99 Most Essential Classics of the Romantic Era
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  date published: 2005-09-15
genre: classical
genre: impressionism
genre: post-romantic-era
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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
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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 0x37979c0bf811d5a336a04a17d7e142d18e0d2e17ce37e308745366f5877aa3b7. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T17:07:35Z), 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/SEWDL9750011.
  date published: 2026-07-21T17:07:35Z
audio: Suite bergamasque, L. 75: III. Clair de lune
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L'Arlesienne Suite No. 1, WD 40: I. Prelude
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duration: PT6M53S
duration ms: 413280
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by artist: David Parry
by artist: London Philharmonic Orchestra
in album: The 99 Most Essential Classics of the Romantic Era
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  date published: 2005-09-15
genre: classical
genre: opera
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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: OTSBitcoinBlock
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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: 2026-06-13T13:32:09Z
audio: L'Arlesienne Suite No. 1, WD 40: I. Prelude
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My Fatherland, JB 1:112 "Ma Vlast": II. Vltava (The Moldau River)
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by artist: David Parry
by artist: London Philharmonic Orchestra
in album: The 99 Most Essential Classics of the Romantic Era
  type: MusicAlbum
  date published: 2005-09-15
genre: classical
genre: late-romantic-era
genre: czech-classical
genre: early-modern-classical
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
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Les Préludes, S. 97
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Pavane pour une infante défunte, M. 19
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Ave Maria, CG 89a
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Kinderszenen, Op. 15: VII. Träumerei
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Radetzky March, Op. 228
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14 Romances, Op. 34: XIV. Vocalise
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Cello Concerto in E Minor, Op. 85: I. Adagio - Moderato
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subject of: OpenTimestamps Proof of Existence
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audio: Cello Concerto in E Minor, Op. 85: I. Adagio - Moderato
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Peer Gynt Suite No. 1, Op. 46: I. Morning Mood
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by artist: David Parry
by artist: London Philharmonic Orchestra
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subject of: OpenTimestamps Proof of Existence
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audio: Peer Gynt Suite No. 1, Op. 46: I. Morning Mood
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Peer Gynt Suite No. 1, Op. 46: IV. In the Hall of the Mountain King
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
audio: Peer Gynt Suite No. 1, Op. 46: IV. In the Hall of the Mountain King
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Peer Gynt, Op. 23, Act III: No. 13, Solveig's Song
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by artist: Ole Kristian Ruud
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by artist: Bergen Philharmonic Orchestra
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by artist: Kari Simonsen
by artist: Andrea Bræin Hovig
by artist: Bjorn Willberg Andersen
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by artist: Håkan Hagegård
by artist: Ingebjorg Kosmo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Peer Gynt, Op. 23, Act III: No. 13, Solveig's Song
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Slavonic Dances, Op. 72: No. 2, Dumka (Allegretto grazioso)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Slavonic Dances, Op. 72: No. 2, Dumka (Allegretto grazioso)
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Two Elegiac Melodies, Op. 34: II. The Last Spring
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T11:43:09Z
audio: Two Elegiac Melodies, Op. 34: II. The Last Spring
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Piano Concerto No. 1 in B-Flat Minor, Op. 23: I. Allegro non troppo e molto maestoso - Allegro con spirito
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T16:07:00Z
audio: Piano Concerto No. 1 in B-Flat Minor, Op. 23: I. Allegro non troppo e molto maestoso - Allegro con spirito
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Pavane, Op. 50
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subject of: OpenTimestamps Proof of Existence
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The Nutcracker, Op. 71, Act I: II. March
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subject of: OpenTimestamps Proof of Existence
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The Nutcracker, Op. 71, Act II: XIV. Waltz of the Flowers
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subject of: OpenTimestamps Proof of Existence
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audio: The Nutcracker, Op. 71, Act II: XIV. Waltz of the Flowers
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The Nutcracker, Op. 71, Act II: XIId. Trepak (Russian Dance)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: The Nutcracker, Op. 71, Act II: XIId. Trepak (Russian Dance)
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The Nutcracker, Op. 71, Act II: XIVc. Var. 2, Dance of the Sugar-Plum Fairy
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  date published: 2026-07-07T14:18:56Z
audio: The Nutcracker, Op. 71, Act II: XIVc. Var. 2, Dance of the Sugar-Plum Fairy
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5 Morceaux de fantasie, Op. 3: No. 2, Prélude in C-Sharp Minor "The Bells of Moscow"
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audio: 5 Morceaux de fantasie, Op. 3: No. 2, Prélude in C-Sharp Minor "The Bells of Moscow"
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21 Hungarian Dances, WoO 1: No. 5, Allegro in F-Sharp Minor
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Thaïs, Act II: Méditation
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subject of: OpenTimestamps Proof of Existence
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Die Walkürie, WWV 86b, Act III: Ride of the Valkyries
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subject of: OpenTimestamps Proof of Existence
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Messa da Requiem: II. Sequence, No. 1, Dies irae - Tuba mirum
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subject of: OpenTimestamps Proof of Existence
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3 Gymnopédies: I. Lent et douloureux
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subject of: OpenTimestamps Proof of Existence
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Symphony No. 9 in E Minor, Op. 95 "From the New World": II. Largo
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subject of: OpenTimestamps Proof of Existence
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Nabucco, Act III: Chorus of the Hebrew Slaves "Va pensiero, sull'ali dorate"
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subject of: OpenTimestamps Proof of Existence
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Sibelius - The Genius Of
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Sibelius - Masterpieces
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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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Calm Violin
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date published: 2021-12-03
track: Thaïs, Act II: Méditation
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  by artist: David Parry
  by artist: Pieter Schoeman
  by artist: London Philharmonic Orchestra
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    type: MusicAlbum
    date published: 2021-12-03
  genre: 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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    date published: 2026-07-08T08:56:20Z
  audio: Thaïs, Act II: Méditation
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    additional property: Danceability
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    additional property: Energy
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    additional property: Valence (Positivity)
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Mozart (8 Hours of the Greatest Mozart's Works)
type: MusicAlbum
date published: 2016-12-09
track: Piano Sonata No. 17 in B-Flat Major, K. 570: II. Adagio
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  by artist: Carlo Balzaretti
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  popularity: 3
  genre: classical
  genre: classical-era
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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 0x7eca998a9e2658eb6b7ad8e76e809d1000d9d61256293134e1701c310fececf3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITD541600070.
    date published: 2026-07-08T03:22:41Z
  audio: Piano Sonata No. 17 in B-Flat Major, K. 570: II. Adagio
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track: Lucio Silla, K. 135: Overture. I. Molto allegro
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  by artist: Wolfgang Amadeus Mozart
  by artist: Orchestra da Camera Fiorentina
  by artist: Giuseppe Lanzetta
  in album: Mozart (8 Hours of the Greatest Mozart's Works)
    type: MusicAlbum
    date published: 2016-12-09
  popularity: 8
  genre: classical
  genre: classical-era
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  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47bc2d765ad385b12f23f52365b44180c757acba31109a636b1bbc32be7ed741. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ITD541500042.
    date published: 2026-07-08T03:22:41Z
  audio: Lucio Silla, K. 135: Overture. I. Molto allegro
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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track: Lucio Silla, K. 135: Overture. III. Molto allegro
  type: MusicRecording
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  by artist: Wolfgang Amadeus Mozart
  by artist: Orchestra da Camera Fiorentina
  by artist: Giuseppe Lanzetta
  in album: Mozart (8 Hours of the Greatest Mozart's Works)
    type: MusicAlbum
    date published: 2016-12-09
  popularity: 4
  genre: classical
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Lucio Silla, K. 135: Overture. III. Molto allegro

CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0xded76f1e44418816360d369b7f8736416e6057e8faf27434c1e9a292310d9311

OTSHash
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITD541500044

OTSTimestamp
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value: 2026-07-08T03:20:19Z

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 0xded76f1e44418816360d369b7f8736416e6057e8faf27434c1e9a292310d9311. 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/ITD541500044.
date published: 2026-07-08T03:20:19Z

Lucio Silla, K. 135: Overture. III. Molto allegro
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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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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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Classical Colors - Red
type: MusicAlbum
date published: 2012-01-10
track: Nabucco, Act III: Chorus of the Hebrew Slaves "Va pensiero, sull'ali dorate"
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  duration: PT4M59S
  duration ms: 299253
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  by artist: Giuseppe Verdi
  by artist: London Philharmonic Choir
  by artist: The London Chorus
  by artist: David Parry
  by artist: London Philharmonic Orchestra
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    date published: 2012-01-10
  genre: classical
  genre: opera
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  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-07-06T07:16:32Z
  audio: Nabucco, Act III: Chorus of the Hebrew Slaves "Va pensiero, sull'ali dorate"
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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
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    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
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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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      value: 0.057
    additional property: Loudness (dB)
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The Best of Dmitry Yablonsky
type: MusicAlbum
date published: 2024-04-12
track: Gaytagi (Version for piano and orchestra)
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  by artist: Farhad Badalbeyli
  by artist: Royal Philharmonic Orchestra
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  additional property: OTSVerificationAPI
    type: PropertyValue
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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
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a92f390d4f6919d665a6722a8c4dc962f9abcbaf7abe74971c6c143fd2c5c97. 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/HKI191029807.
    date published: 2026-07-08T03:20:19Z
  audio: Gaytagi (Version for piano and orchestra)
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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: 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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Romantic Classical Music
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date published: 2019-04-12
track: Thaïs, Act II: Méditation
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  duration: PT5M1S
  duration ms: 301093
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  by artist: David Parry
  by artist: Pieter Schoeman
  by artist: London Philharmonic Orchestra
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  additional property: OTSVerifyInstructions
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track: Suite Bergamasque, L. 75: III. Clair de lune
track: Two Elegiac Melodies, Op. 34: II. Last Spring
track: Gnossiennes: I. Lent
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Gnossiennes: I. Lent
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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audio: Cavalleria Rusticana: Symphonic Intermezzo
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Cavatina
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by artist: Craig Ogden
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subject of: OpenTimestamps Proof of Existence
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Cello Concerto in E Minor, Op. 85: III. Adagio
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subject of: OpenTimestamps Proof of Existence
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audio: Cello Concerto in E Minor, Op. 85: III. Adagio
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Piano Concerto No. 21 in C Major, K. 467: II. Andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Piano Concerto No. 21 in C Major, K. 467: II. Andante
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The Four Seasons, Violin Concerto No. 4 in F Minor, RV 297 "Winter": II. Largo
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subject of: OpenTimestamps Proof of Existence
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audio: The Four Seasons, Violin Concerto No. 4 in F Minor, RV 297 "Winter": II. Largo
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Nocturnes, Op. 9: No. 2, Andante in E-Flat Major
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  date published: 2026-07-08T03:20:19Z
audio: Nocturnes, Op. 9: No. 2, Andante in E-Flat Major
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Concierto de Aranjuez: II. Adagio
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Liebesträume, S. 541: No. 3, Oh lieb, so lang du lieben kannst
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subject of: OpenTimestamps Proof of Existence
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Piano Concerto No. 21 in C Major, K. 467: III. Allegro vivace assai
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by artist: Giuseppe Lanzetta
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
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Piano Sonata No. 11 in A Major, K. 331: III. Alla turca
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:53:57Z
audio: Piano Sonata No. 11 in A Major, K. 331: III. Alla turca
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Symphony No. 36 in C Major, K. 425 "Linz": IV. Presto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T11:02:43Z
audio: Symphony No. 36 in C Major, K. 425 "Linz": IV. Presto
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La finta giardiniera, K. 196: Ouverture. Allegro molto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: La finta giardiniera, K. 196: Ouverture. Allegro molto
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Symphony No. 40 in G Minor, K. 550: I. Molto allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Symphony No. 40 in G Minor, K. 550: I. Molto allegro
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Symphony No. 40 in G Minor, K. 550: IV. Allegro assai
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  date published: 2026-07-02T05:09:12Z
audio: Symphony No. 40 in G Minor, K. 550: IV. Allegro assai
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Flute Concerto No. 2 in D Major, K. 314: II. Adagio non troppo
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subject of: OpenTimestamps Proof of Existence
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audio: Flute Concerto No. 2 in D Major, K. 314: II. Adagio non troppo
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Flute Concerto No. 2 in D Major, K. 314: III. Rondo. Allegretto
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subject of: OpenTimestamps Proof of Existence
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Andante for Flute and Orchestra in C Major, K. 315
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Andante for Flute and Orchestra in C Major, K. 315
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Symphony No. 41 in C Major, K. 551 "Jupiter": I. Allegro vivace
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Symphony No. 41 in C Major, K. 551 "Jupiter": I. Allegro vivace
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Symphony No. 41 in C Major, K. 551 "Jupiter": II. Andante cantabile
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  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 41 in C Major, K. 551 "Jupiter": II. Andante cantabile
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Lo sposo deluso, K. 430: Ouverture. Allegro - Andante - Allegro
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  date published: 2026-06-13T15:41:10Z
audio: Lo sposo deluso, K. 430: Ouverture. Allegro - Andante - Allegro
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Symphony No. 38 in D Major, K. 504 "Prague": III. Presto
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  date published: 2026-07-08T03:53:27Z
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Requiem in D Minor, K. 626: Introitus. Requiem
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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audio: Requiem in D Minor, K. 626: Introitus. Requiem
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Divertimento in D Major, K. 251: I. Allegro molto
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by artist: Orchestra da Camera Fiorentina
by artist: Giuseppe Lanzetta
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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Divertimento in D Major, K. 251: II. Minuetto
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by artist: Orchestra da Camera Fiorentina
by artist: Giuseppe Lanzetta
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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: Divertimento in D Major, K. 251: II. Minuetto
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Divertimento in D Major, K. 251: III. Andatino - Allegretto
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by artist: Orchestra da Camera Fiorentina
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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: Divertimento in D Major, K. 251: III. Andatino - Allegretto
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Divertimento in D Major, K. 251: IV. Minuetto con variazione
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Divertimento in D Major, K. 251: IV. Minuetto con variazione
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Divertimento in D Major, K. 251: V. Allegro assai
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Divertimento in D Major, K. 251: V. Allegro assai
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50 Essential Violin
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date published: 2009-01-01

Classical Violin
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date published: 2021-10-16

The 99 Most Essential Violin Masterpieces
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date published: 2012-11-09

Violin Classics
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    date published: 2026-07-02T11:38:34Z
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A Classical Valentine's Day - Romantic Classics
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