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album: 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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  track: Carmen Suite No. 2: II. Habanera
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  track: 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
album: The 50 Most Essential Pieces of Classical Music
album: Classical Music for Meditation and Yoga
album: Romantic Era Classics
album: The 50 Most Essential Romantic Classics
album: 111 Amazing Classical: Music of Love
album: The 99 Most Essential Pieces of Classical Music
album: 20th Century Classics
album: Yoga with Classical Music
album: Dark Classical Music
album: easy classical
album: The Dark Side of Classical Music
album: The 50 Darkest Pieces of Classical Music
album: Relaxing Classical Music for Work
album: Soft Classical Music for Relaxing
album: Bedtime Classical Music
album: Adagios 101
album: Top 100 Chill Out Classical Music
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Suite bergamasque, L. 75: III. Clair de lune
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Ave Maria, CG 89a
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Liebesträume, S. 541: No. 3, Oh lieb, so lang du lieben kannst
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The 50 Most Essential Pieces of Classical Music
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subject of: OpenTimestamps Proof of Existence
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Messiah, HWV 56, Pt. II: No. 44, Hallelujah
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Le Carnaval des Animaux, R. 125: XIII. Le Cygne
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Concierto de Aranjuez: II. Adagio
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Classical Music for Meditation and Yoga
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Romantic Era Classics
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The 50 Most Essential Romantic Classics
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111 Amazing Classical: Music of Love
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The 99 Most Essential Pieces of Classical Music
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OpenTimestamps Proof of Existence
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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21 Hungarian Dances, WoO 1: No. 5, Allegro in F-Sharp Minor
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Adagio in G Minor
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14 Romances, Op. 34: No. 14, Vocalise (Lentamente)
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Pavane, Op. 50
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20th Century Classics
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Pavane pour une infante défunte, M. 19
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Piano Concerto No. 21 in C Major, K. 467 "Elvira Madigan": II. Andante
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Kinderszenen, Op. 15: I. Von fremden Ländern und Menschen
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Kinderszenen, Op. 15: VII. Träumerei
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Nocturnes, Op. 9: No. 1, Larghetto in B-Flat Minor
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Nocturnes, Op. 9: No. 2, Andante in E-Flat Major
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Piano Sonata No. 17 in D Minor, Op. 31 No. 2 "The Tempest": II. Adagio
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Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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Dark Classical Music
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:20:19Z

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subject of: OpenTimestamps Proof of Existence
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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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Stabat Mater, RV 621: I. Stabat Mater dolorosa
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Swan Lake, Op. 20a: No. 1, Scène
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Carmina Burana, Fortuna Imperatrix Mundi: No. 1, O Fortuna
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Adagio in G Minor
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Romeo and Juliet, Op. 64ter: I. Montagues and Capulets
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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subject of: OpenTimestamps Proof of Existence
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audio: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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Symphony No. 40 in G Minor, K. 550: I. Allegro molto
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subject of: OpenTimestamps Proof of Existence
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Symphony No. 40 in G Minor, K. 550: IV. Finale, Allegro Assai
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Egmont, Op. 84: Overture in F Minor
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subject of: OpenTimestamps Proof of Existence
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audio: Egmont, Op. 84: Overture in F Minor
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Cello Sonata in D Minor, Op. 40: II. Allegro
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audio: Cello Sonata in D Minor, Op. 40: II. Allegro
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Messa da Requiem: IIa. Sequence, Dies irae - Tuba mirum
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  date published: 2026-07-08T03:20:19Z
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Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": III. Rondo (Allegro)
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Adagio for Strings, Op. 11
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subject of: OpenTimestamps Proof of Existence
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audio: Adagio for Strings, Op. 11
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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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Toccata and Fugue in D Minor, BWV 565
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subject of: OpenTimestamps Proof of Existence
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audio: Toccata and Fugue in D Minor, BWV 565
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Fantasy in F Minor, K. 608 "Organ Piece for a Clock"
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subject of: OpenTimestamps Proof of Existence
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audio: Fantasy in F Minor, K. 608 "Organ Piece for a Clock"
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Night on the Bald Mountain
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audio: Night on the Bald Mountain
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Pictures at an Exhibition: II. Gnomus
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Gnossiennes: I. Lent
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The Messiah, HWV 56, Pt. 1: No. 10, For Behold, Darkness Shall Cover the Earth
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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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348bb71da35c2e249f85764edda0e928ced4067d58ac6ded4b31d2b6b2f460ac. 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/SEWDL9750040.
date published: 2026-07-02T05:09:12Z

Peer Gynt Suite No. 1, Op. 46: In the Hall of the Mountain King
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 121.733
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.465
additional property: Energy
  type: PropertyValue
  value: 0.082
additional property: Speechiness
  type: PropertyValue
  value: 0.04
additional property: Acousticness
  type: PropertyValue
  value: 0.79
additional property: Instrumentalness
  type: PropertyValue
  value: 0.834
additional property: Liveness
  type: PropertyValue
  value: 0.151
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.141
additional property: Loudness (dB)
  type: PropertyValue
  value: -19.826
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

Morceaux de Fantasie, Op. 3: II. Prélude in C-Sharp Minor, "The Bells of Moscow": Lento
type: MusicRecording
duration: PT4M14S
duration ms: 254000
explicit: false
by artist: Sergei Rachmaninoff
by artist: Tomislav Bavnov
in album: The 50 Darkest Pieces of Classical Music
  type: MusicAlbum
  date published: 2020-10-30
genre: classical
genre: classical-piano
isrc code: SEWDL0705615
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T19:06:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf274526f3783e40587690ba60c5e0d070f026c67225975c00032478eb8ccd39b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0705615
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf274526f3783e40587690ba60c5e0d070f026c67225975c00032478eb8ccd39b. 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/SEWDL0705615.
  date published: 2026-07-02T05:09:12Z
audio: Morceaux de Fantasie, Op. 3: II. Prélude in C-Sharp Minor, "The Bells of Moscow": Lento
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.851
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.476
  additional property: Energy
    type: PropertyValue
    value: 0.08
  additional property: Speechiness
    type: PropertyValue
    value: 0.084
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.917
  additional property: Liveness
    type: PropertyValue
    value: 0.064
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.095
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.249
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

The Planets, Op. 32: Saturn, the Bringer of Old Age
type: MusicRecording
duration: PT9M22S
duration ms: 562538
explicit: false
by artist: Gustav Holst
by artist: Walter Susskind
by artist: St. Louis Symphony
in album: The 50 Darkest Pieces of Classical Music
  type: MusicAlbum
  date published: 2020-10-30
genre: classical
genre: orchestra
isrc code: USZDG0600643
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T20:49:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4845c404df5abf5173401b39c2430f1f9e6d55df9802d3f44640b0b2c1dd9ae7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZDG0600643
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0x4845c404df5abf5173401b39c2430f1f9e6d55df9802d3f44640b0b2c1dd9ae7. 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/USZDG0600643.
  date published: 2026-07-02T03:55:08Z
audio: The Planets, Op. 32: Saturn, the Bringer of Old Age
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.321
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.141
  additional property: Energy
    type: PropertyValue
    value: 0.01
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.925
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.914
  additional property: Liveness
    type: PropertyValue
    value: 0.086
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.031
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.703
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Requiem, K. 626: Dies Irae
type: MusicRecording
duration: PT1M37S
duration ms: 97603
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Johannes Somary
by artist: Amor Artis Orchestra
by artist: Amor Artis Chamber Choir
in album: The 50 Darkest Pieces of Classical Music
  type: MusicAlbum
  date published: 2020-10-30
genre: classical
genre: classical-era
isrc code: USZDG0700086
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T06:54:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd6af53e71b0a6d464c85ee49c194e051b8b1fc5bf38c89e5839bf77a56e3cfaf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZDG0700086
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
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 0xd6af53e71b0a6d464c85ee49c194e051b8b1fc5bf38c89e5839bf77a56e3cfaf. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USZDG0700086.
  date published: 2026-07-06T06:56:49Z
audio: Requiem, K. 626: Dies Irae
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.007
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.368
  additional property: Energy
    type: PropertyValue
    value: 0.702
  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
    value: 0.868
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.563
  additional property: Liveness
    type: PropertyValue
    value: 0.22
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.495
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.313
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Romeo and Juliet, Ballet Suite No. 2, Op. 64: I. Montagues and Capulets
type: MusicRecording
duration: PT5M22S
duration ms: 322376
explicit: false
by artist: Sergei Prokofiev
by artist: Stanisław Skrowaczewski
by artist: Minnesota Orchestra
in album: The 50 Darkest Pieces of Classical Music
  type: MusicAlbum
  date published: 2020-10-30
genre: classical
genre: orchestra
genre: neoclassical
isrc code: USZDG0601719
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T23:23:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x53b66a1fffb9f5a4fb70f5fb47229ca3bc98a8ceccf187bec33bd65955eb7cd0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZDG0601719
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
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 0x53b66a1fffb9f5a4fb70f5fb47229ca3bc98a8ceccf187bec33bd65955eb7cd0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USZDG0601719.
  date published: 2026-07-06T06:56:49Z
audio: Romeo and Juliet, Ballet Suite No. 2, Op. 64: I. Montagues and Capulets
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.436
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.244
  additional property: Energy
    type: PropertyValue
    value: 0.143
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.865
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.335
  additional property: Liveness
    type: PropertyValue
    value: 0.04
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.062
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.009
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Symphony No. 5 in C Minor, Op. 67, "Fate": Allegro con brio
type: MusicRecording
duration: PT7M28S
duration ms: 448186
explicit: false
by artist: Ludwig van Beethoven
by artist: David Parry
by artist: London Philharmonic Orchestra
in album: The 50 Darkest Pieces of Classical Music
  type: MusicAlbum
  date published: 2020-10-30
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL9750002
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T12:21:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa891ed71652dbf6da1e83cbdacb41a32ad6a25e50f59ec6dc1956e10bb88e92d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL9750002
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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 0xa891ed71652dbf6da1e83cbdacb41a32ad6a25e50f59ec6dc1956e10bb88e92d. 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/SEWDL9750002.
  date published: 2026-07-08T03:22:41Z
audio: Symphony No. 5 in C Minor, Op. 67, "Fate": Allegro con brio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.687
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.319
  additional property: Energy
    type: PropertyValue
    value: 0.315
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.98
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.916
  additional property: Liveness
    type: PropertyValue
    value: 0.129
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.165
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.499
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Piano Sonata No. 14 in C-Sharp Minor, Op. 27:2, "Moonlight Sonata": Adagio sostenuto
type: MusicRecording
duration: PT5M36S
duration ms: 336720
explicit: false
by artist: Ludwig van Beethoven
by artist: Finghin Collins
in album: The 50 Darkest Pieces of Classical Music
  type: MusicAlbum
  date published: 2020-10-30
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL9750030
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T15:13:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9baaa243819007bd8ee40f7c3c05d5fcb2298f558632582b81e149b7fbef93f1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957073
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL9750030
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05Z
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 0x9baaa243819007bd8ee40f7c3c05d5fcb2298f558632582b81e149b7fbef93f1. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/SEWDL9750030.
  date published: 2026-07-07T18:39:05Z
audio: Piano Sonata No. 14 in C-Sharp Minor, Op. 27:2, "Moonlight Sonata": Adagio sostenuto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 165.429
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.239
  additional property: Energy
    type: PropertyValue
    value: 0.03
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.995
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.905
  additional property: Liveness
    type: PropertyValue
    value: 0.098
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.104
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.55
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Carmina Burana: O Fortuna
type: MusicRecording
duration: PT2M42S
duration ms: 162773
explicit: false
by artist: Carl Orff
by artist: David Parry
by artist: London Philharmonic Orchestra
by artist: London Philharmonic Choir
in album: The 50 Darkest Pieces of Classical Music
  type: MusicAlbum
  date published: 2020-10-30
isrc code: SEWDL9750008
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T07:28:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf3748cfad3f74dd9ed4aa2f7356aaeb39b428223446f22fdbd26440035cbdaa4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL9750008
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Symphony No. 40 in G Minor, K. 550: Allegro molto
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Concerto in C Major for Sopranino Recorder, Strings and B.C, RV 443: II. Largo
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Music for Strings, Percussion and Celesta, Sz 106: III. Adagio
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Egmont, Op. 84: Overture in F Minor
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Sonata No. 2 in B-Flat Minor for Piano, Op. 35: III. Marche Funébre (Funeral March): Lento
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Concerto No. 10 in D Minor for Organ and Orchestra, HWV 309, Op. 7: I. Adagio
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Messa da Requiem: Dies irae - Tuba mirum
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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audio: Messa da Requiem: Dies irae - Tuba mirum
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Symphony No. 3 in E-Flat Major, Op. 55, "Eroica": II. Marcia funébre: Adagio assai
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by artist: Woldemar Nelsson
by artist: SWR Symphony Orchestra
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genre: classical-piano
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
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Sonata in D Minor for Cello and Piano, Op. 40: II. Allegro
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Sonata in D Minor for Cello and Piano, Op. 40: II. Allegro
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Adagio in G Minor for Strings and Organ, "Albinoni's Adagio"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Adagio in G Minor for Strings and Organ, "Albinoni's Adagio"
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Nuages Gris, S. 199
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Nuages Gris, S. 199
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The Valkyrie: Ride of the Valkyries
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T16:07:00Z
audio: The Valkyrie: Ride of the Valkyries
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Lemminkäinen Suite, Op. 22: The Swan of Tuonela: Andante molto sostenuto
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Adagio for Strings, Op. 11a
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subject of: OpenTimestamps Proof of Existence
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Toccata and Fugue in D Minor for Organ, BWV 565
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by artist: Klemens Schnorr
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subject of: OpenTimestamps Proof of Existence
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audio: Toccata and Fugue in D Minor for Organ, BWV 565
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Symphony No. 7 in A Major, Op. 92: II. Allegretto
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subject of: OpenTimestamps Proof of Existence
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audio: Symphony No. 7 in A Major, Op. 92: II. Allegretto
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Requiem, K. 626: Lacrimosa dies illa
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
audio: Requiem, K. 626: Lacrimosa dies illa
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The Planets, Op. 32: Neptune, the Mystic
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  date published: 2026-07-08T03:22:41Z
audio: The Planets, Op. 32: Neptune, the Mystic
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Relaxing Classical Music for Work
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  subject of: OpenTimestamps Proof of Existence
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track: Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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track: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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Cavatina
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Gnossiennes: I. Lent
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Nocturnes, Op. 9: No. 2, Andante in E-Flat Major
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Nocturnes, Op. 9: No. 2, Andante in E-Flat Major
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4 Piano Pieces, Op. 119: I. Intermezzo in B Minor (Adagio)
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by artist: Karin Lechner
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
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Peer Gynt Suite No. 1, Op. 46: I. Morning Mood
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Peer Gynt Suite No. 1, Op. 46: I. Morning Mood
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Violin Concerto in G Minor, BWV 1056R: II. Largo
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by artist: Emmy Verhey
by artist: Camerata Antonio Lucio
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popularity: 4
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Violin Concerto in G Minor, BWV 1056R: II. Largo
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Bagatelle in A Minor, WoO 59 "Für Elise"
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by artist: Henrik Måwe
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popularity: 4
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Bagatelle in A Minor, WoO 59 "Für Elise"
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Cavalleria Rusticana: Symphonic Intermezzo
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by artist: Heribert Beissel
by artist: Bonn Classical Philharmonic
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popularity: 4
genre: opera
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Cavalleria Rusticana: Symphonic Intermezzo
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River Flows in You
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by artist: Johannes Bornlöf
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popularity: 4
genre: neo-classical
genre: new-age-piano
genre: korean-instrumental
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: River Flows in You
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Violin Concerto No. 1 in A Minor, BWV 1041: I. Allegro
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Symphony No. 5 in E Minor, Op. 64: II. Andante cantabile, con alcuna licenza
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Piano Concerto No. 2 in C Minor, Op. 18: II. Adagio sostenuto
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Ancient Airs and Dances, Suite No. 2, P. 132: IV. Bergamasca (Bernardo Gianecelli)
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My Fatherland, JB 1:112 "Ma Vlast": II. Vltava
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Préludes, Book I, L. 117: VIII. La fille aux cheveux de lin
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Thaïs, Act II: Méditation
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The Gadfly Suite, Op. 97a: VIII. Romance
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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto
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Soft Classical Music for Relaxing
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Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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Piano Concerto No. 21 in C Major, K. 467 "Elvira Madigan": II. Andante
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Adagio in G Minor
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Cavatina
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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto
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Le carnaval des Animaux, R. 125: XIII. Le Cygne
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Nocturnes, Op. 9: No. 2, Andante in E-Flat Major
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14 Romances, Op. 34: No. 14, Vocalise (Lentamente, molto cantabile)
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River Flows In You
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Pavane pour une infante défunte, M. 19
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Peer Gynt Suite No. 2, Op. 55: IV. Solveigs Song
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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Thaïs, Act II: Méditation
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Gnossiennes: I. Lent
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The Gadfly Suite, Op. 97a: VIII. Romance
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Cavalleria Rusticana: Symphonic Intermezzo
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Bagatelle in A Minor, WoO 59 "Für Elise"
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Symphony No. 3, Op. 36 "Symphony of Sorrowful Songs": II. Lento e Largo - Tranquillissimo
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Symphony No. 9 in E Minor, Op. 95 "From the New World": II. Largo
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Pavane, Op. 50
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audio: Pavane, Op. 50
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Symphony No. 5, Pt. 3: IV. Adagietto
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Bedtime Classical Music
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track: Nocturnes, Op. 9: No. 2, Andante in E-Flat Major
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:53:27Z

Una Mattina
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Adagios 101
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track: 3 Gymnopédies: I. Lent et douloureux
track: Piano Concerto in A Minor, Op. 16: II. Adagio
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3 Gymnopédies: I. Lent et douloureux
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Piano Concerto in A Minor, Op. 16: II. Adagio
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track: Spiegel im Spiegel for Violin and Piano (1978)
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track: Orpheus and Eurydice: Dance of the Blessed Spirits

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Orpheus and Eurydice: Dance of the Blessed Spirits
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