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genre: classical piano
description: Abbey Henry Simon (January 8, 1920“Vera and Solomon[’s] . . . only child, born on January 8, 1920, was called Abbey Henry Simon.” From Inner Voices by Abbey Simon with Garnet Ungar, 2017 () p. 2.“I’m
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    subject of: OpenTimestamps Proof of Existence
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album: Piano Concerto No. 2 in C Minor, Op. 18 (2023 Remaster)
album: Rachmaninoff: Piano Concerto No. 2 in C minor, Op. 18 & Piano Concerto No. 3 in D minor, Op. 30 (2023 Remastered Version)
album: Chopin: Piano Concerto No. 1, Fantasy on Polish Airs & Andante spianato and Grande polonaise brillante (Remastered 2024)
album: Chopin: Complete Works for Piano & Orchestra
album: Chopin: Piano Concerto No. 2, Rondo à la Krakowiak & Variations on "Là ci darem la mano" (Remastered 2024)
album: Chopin: Piano Works
album: Red Edition - Ravel & Debussy: Concerto pour la main gauche, M. 82 & Fantaisie for Piano & Orchestra
album: Blue Edition - Debussy & Ravel: Prélude à l'après-midi d'un faune & Le roi Lear, L. 107
album: Blue Edition - Ravel & Debussy: Concerto pour la main gauche & La boîte à joujoux
album: Classical Selection - Ravel, Bizet: Carmen Suites Nos. 1 & 2
album: Perfect Chopin
album: Frédéric Chopin: Etudes, Nocturnes & Waltzes Performed by Abbey Simon
album: Chopin: The Perfect Playlist
album: Ravel : Piano Masterpieces Vol.2 Gaspard de la Nuit
album: Chopin: The Complete Waltzes, Etudes and Concertos
album: The Songs of Dream World: Chopin's Music as heard in Eternal Sonata
album: Chopin: Nocturnes and Concertos for Piano
album: Paganini Variations, Vol. 2
album: Chopin: Sonatas, Scherzos, Ballades, Impromptus, Berceuse & Barcarolle
album: Ravel: Complete Music for Solo Piano
album: Grieg: Concerto in A Minor / Rachmaninoff: Rhapsody on a Theme of Paganini
album: Chopin: Complete Études & Waltzes
album: Schumann: Carnaval, Op. 9 & Fantasie in C Major, Op. 17
album: Chopin: Complete Nocturnes
album: Rachmaninoff: Piano Concertos Nos. 1-4 & Rhapsody on a Theme of Paganini
album: Rachmaninoff: Piano Concertos Nos. 1 & 4 & Rhapsody on a Theme of Paganini, Op. 43 (Remastered 2023)
album: Brahms: Variations pour piano sur un thème de Paganini, Op. 35 & Variations et fugue pour piano sur un thème de Handel, Op. 24 (Mono Version)
album: Grieg: Piano Concerto in A Op. 16
album: Grieg: Concerto pour piano, Op. 16 (Mono Version)
track: Nocturnes, Op. 9
track: Rhapsody On a Theme By Paganini, Op. 43: Variation No. 18
track: Piano Concerto No. 1 in E Minor, Op. 11, II. Romance (Larghetto)
track: Ballade No. 1 in G Minor, Op. 23
track: Fantaisie-Impromptu in C-Sharp Minor, Op. 66
track: Ballade No. 2 in F Major, Op. 38

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  date published: 2026-07-31T17:29:52Z
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  audio: Piano Concerto No. 1 in E Minor, Op. 11: III. Rondo. Vivace - Remastered 2024
track: Fantasy on Polish Airs in A Major, Op. 13 - Remastered 2024
track: Andante spianato and Grande polonaise brillante in E-Flat Major, Op. 22 - Remastered 2024

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Piano Concerto No. 1 in E Minor, Op. 11: III. Rondo. Vivace - Remastered 2024
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Fantasy on Polish Airs in A Major, Op. 13 - Remastered 2024
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audio: Fantasy on Polish Airs in A Major, Op. 13 - Remastered 2024
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Andante spianato and Grande polonaise brillante in E-Flat Major, Op. 22 - Remastered 2024
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subject of: OpenTimestamps Proof of Existence
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Chopin: Complete Works for Piano & Orchestra
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Chopin: Piano Concerto No. 2, Rondo à la Krakowiak & Variations on "Là ci darem la mano" (Remastered 2024)
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Chopin: Piano Works
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date published: 2016-11-04

Red Edition - Ravel & Debussy: Concerto pour la main gauche, M. 82 & Fantaisie for Piano & Orchestra
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Blue Edition - Debussy & Ravel: Prélude à l'après-midi d'un faune & Le roi Lear, L. 107
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Blue Edition - Ravel & Debussy: Concerto pour la main gauche & La boîte à joujoux
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Classical Selection - Ravel, Bizet: Carmen Suites Nos. 1 & 2
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Perfect Chopin
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Frédéric Chopin: Etudes, Nocturnes & Waltzes Performed by Abbey Simon
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Chopin: The Perfect Playlist
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date published: 2014-09-06

Ravel : Piano Masterpieces Vol.2 Gaspard de la Nuit
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Chopin: The Complete Waltzes, Etudes and Concertos
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The Songs of Dream World: Chopin's Music as heard in Eternal Sonata
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track: Waltz in E-flat Major, Op. 18, "Grand Valse Brilliante"
track: Nocturnes, Op. 9: No. 2 in E-Flat Major
track: 12 Études, Op. 10: No. 3 in E Major, "Tristesse": Lento ma non troppo

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date published: 2026-07-31T13:26:30Z

Fantaisie Impromptu in C-Sharp Major, Op. 66: Allegro agitato
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Waltz in E-flat Major, Op. 18, "Grand Valse Brilliante"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T18:48:12Z
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Nocturnes, Op. 9: No. 2 in E-Flat Major
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subject of: OpenTimestamps Proof of Existence
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audio: Nocturnes, Op. 9: No. 2 in E-Flat Major
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12 Études, Op. 10: No. 3 in E Major, "Tristesse": Lento ma non troppo
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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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Chopin: Nocturnes and Concertos for Piano
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Paganini Variations, Vol. 2
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    date published: 2026-07-31T18:48:12Z
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Chopin: Sonatas, Scherzos, Ballades, Impromptus, Berceuse & Barcarolle
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZGD0100019
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1941c79e5438e17dc216191cf02d3e4764c584bcdf895bcd266d138ad169ea. 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/USZGD0100019.
    date published: 2026-07-08T03:20:19Z
  audio: Piano Sonata No. 2 in B-Flat Minor, Op. 35 "Funeral March": III. Marche funèbre. Lento
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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      value: 0.992
    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)
      type: PropertyValue
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    additional property: Key Name
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      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Ballade No. 1 in G Minor, Op. 23
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  duration: PT9M23S
  duration ms: 563746
  explicit: false
  by artist: Frédéric Chopin
  by artist: Abbey Simon
  in album: Chopin: Sonatas, Scherzos, Ballades, Impromptus, Berceuse & Barcarolle
    type: MusicAlbum
    date published: 2001-01-01
  popularity: 1
  genre: classical
  genre: early-romantic-era
  genre: polish-classical
  isrc code: USZGD0100034
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T20:00:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc2524c314b40859e8af9dba3f830d93d674f3f8c567d275992bfdd47a51f53cb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960459
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960459
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZGD0100034
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T20:22:46Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2524c314b40859e8af9dba3f830d93d674f3f8c567d275992bfdd47a51f53cb. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USZGD0100034.
    date published: 2026-07-31T20:22:46Z
  audio: Ballade No. 1 in G Minor, Op. 23
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
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      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.326
    additional property: Energy
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      value: 0.082
    additional property: Speechiness
      type: PropertyValue
      value: 0.048
    additional property: Acousticness
      type: PropertyValue
      value: 0.985
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.895
    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.057
    additional property: Loudness (dB)
      type: PropertyValue
      value: -27.241
    additional property: Key Name
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Ravel: Complete Music for Solo Piano
type: MusicAlbum
date published: 2000-01-01

Grieg: Concerto in A Minor / Rachmaninoff: Rhapsody on a Theme of Paganini
type: MusicAlbum
date published: 2000-01-01

Chopin: Complete Études & Waltzes
type: MusicAlbum
date published: 1996-01-01

Schumann: Carnaval, Op. 9 & Fantasie in C Major, Op. 17
type: MusicAlbum
date published: 1995-01-01

Chopin: Complete Nocturnes
type: MusicAlbum
date published: 1995-01-01
track: Nocturnes, Op. 9: No. 1 in B-Flat Minor
  type: MusicRecording
  duration: PT5M37S
  duration ms: 337173
  explicit: false
  by artist: Frédéric Chopin
  by artist: Abbey Simon
  in album: Chopin: Complete Nocturnes
    type: MusicAlbum
    date published: 1995-01-01
  popularity: 1
  genre: classical
  genre: early-romantic-era
  genre: polish-classical
  isrc code: USZGD9500400
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-08-01T03:22:36+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5d883cf3d41583875db925fa559e219c00909d300986ae9f5a329bd9036f43f8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960503
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960503
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZGD9500400
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-08-01T03:41:24Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d883cf3d41583875db925fa559e219c00909d300986ae9f5a329bd9036f43f8. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/USZGD9500400.
    date published: 2026-08-01T03:41:24Z
  audio: Nocturnes, Op. 9: No. 1 in B-Flat Minor
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 96.383
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
      value: 0.19
    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
      value: 0.985
    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
      type: PropertyValue
      value: 0.105
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.039
    additional property: Loudness (dB)
      type: PropertyValue
      value: -35.931
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Nocturnes, Op. 9: No. 2 in E-Flat Major
  type: MusicRecording
  duration: PT4M44S
  duration ms: 284000
  explicit: false
  by artist: Frédéric Chopin
  by artist: Abbey Simon
  in album: Chopin: Complete Nocturnes
    type: MusicAlbum
    date published: 1995-01-01
  popularity: 14
  genre: classical
  genre: early-romantic-era
  genre: polish-classical
  isrc code: USZGD9500401
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-22T15:59:58+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3d52abe8175a2221770f490f59cd8c9870ebc8b207a04e72dcd8acb7c94821c9
  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/USZGD9500401
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d52abe8175a2221770f490f59cd8c9870ebc8b207a04e72dcd8acb7c94821c9. 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/USZGD9500401.
    date published: 2026-07-02T03:55:08Z
  audio: Nocturnes, Op. 9: No. 2 in E-Flat Major
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 135.276
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
      value: 0.363
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
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    additional property: Loudness (dB)
      type: PropertyValue
      value: -35.027
    additional property: Key Name
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      value: Bb
    additional property: Mode Name
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track: Nocturnes, Op. 48: No. 1 in C Minor
  type: MusicRecording
  duration: PT5M52S
  duration ms: 352000
  explicit: false
  by artist: Frédéric Chopin
  by artist: Abbey Simon
  in album: Chopin: Complete Nocturnes
    type: MusicAlbum
    date published: 1995-01-01
  popularity: 2
  genre: classical
  genre: early-romantic-era
  genre: polish-classical
  isrc code: USZGD9500412
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Nocturnes, Op. 48: No. 1 in C Minor
track: Nocturnes, Op. 55: No. 1 in F Minor
track: Nocturnes, Op. 27: No. 2 in D-Flat Major
track: Nocturne in E Minor, Op. 72 No. 1
track: Nocturne in C Minor, B. 108

CopyrightRegisteredAt
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value: 2026-07-31T05:26:00+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xad725a5c06d23dbf63f7c1a6b1aa21da55d291e9ddb78bf623d397acf879a5cc

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 960354

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960354

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZGD9500412

OTSTimestamp
type: PropertyValue
value: 2026-07-31T05:48:18Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad725a5c06d23dbf63f7c1a6b1aa21da55d291e9ddb78bf623d397acf879a5cc. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/USZGD9500412.
date published: 2026-07-31T05:48:18Z

Nocturnes, Op. 48: No. 1 in C Minor
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 140.945
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: 0.346
additional property: Energy
  type: PropertyValue
  value: 0.045
additional property: Speechiness
  type: PropertyValue
  value: 0.04
additional property: Acousticness
  type: PropertyValue
  value: 0.993
additional property: Instrumentalness
  type: PropertyValue
  value: 0.889
additional property: Liveness
  type: PropertyValue
  value: 0.09
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.046
additional property: Loudness (dB)
  type: PropertyValue
  value: -29.383
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
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Nocturnes, Op. 55: No. 1 in F Minor
type: MusicRecording
duration: PT4M50S
duration ms: 290000
explicit: false
by artist: Frédéric Chopin
by artist: Abbey Simon
in album: Chopin: Complete Nocturnes
  type: MusicAlbum
  date published: 1995-01-01
popularity: 5
genre: classical
genre: early-romantic-era
genre: polish-classical
isrc code: USZGD9500414
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T10:05:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfce36e09e3ab6a7e191e434e017bd1bee13340aa8a98dc309167be31a6cedac8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957064
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957064
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZGD9500414
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T16:43:08Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce36e09e3ab6a7e191e434e017bd1bee13340aa8a98dc309167be31a6cedac8. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/USZGD9500414.
  date published: 2026-07-07T16:43:08Z
audio: Nocturnes, Op. 55: No. 1 in F Minor
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.584
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.255
  additional property: Energy
    type: PropertyValue
    value: 0.027
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.894
  additional property: Liveness
    type: PropertyValue
    value: 0.065
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.105
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.45
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Nocturnes, Op. 27: No. 2 in D-Flat Major
type: MusicRecording
duration: PT5M36S
duration ms: 336000
explicit: false
by artist: Frédéric Chopin
by artist: Abbey Simon
in album: Chopin: Complete Nocturnes
  type: MusicAlbum
  date published: 1995-01-01
popularity: 9
genre: classical
genre: early-romantic-era
genre: polish-classical
isrc code: USZGD9500407
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T16:04:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa1abec8b5a75e8df8fac6dfa2930b09f02c47e3010f522d14d8f9fa577d13327
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/USZGD9500407
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1abec8b5a75e8df8fac6dfa2930b09f02c47e3010f522d14d8f9fa577d13327. 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/USZGD9500407.
  date published: 2026-07-02T03:55:08Z
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Nocturne in E Minor, Op. 72 No. 1
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Nocturne in C Minor, B. 108
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Rachmaninoff: Piano Concertos Nos. 1-4 & Rhapsody on a Theme of Paganini
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Brahms: Variations pour piano sur un thème de Paganini, Op. 35 & Variations et fugue pour piano sur un thème de Handel, Op. 24 (Mono Version)
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Grieg: Piano Concerto in A Op. 16
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Nocturnes, Op. 9
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Rhapsody On a Theme By Paganini, Op. 43: Variation No. 18
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Piano Concerto No. 1 in E Minor, Op. 11, II. Romance (Larghetto)
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18be8f70ec6e89feb23dcf71c55d5f39b58bdd835b7141a1e6919b93086e4d4. 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/USZDG0601176.
  date published: 2026-07-08T03:20:19Z
audio: Piano Concerto No. 1 in E Minor, Op. 11, II. Romance (Larghetto)
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Ballade No. 1 in G Minor, Op. 23
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duration: PT2M59S
duration ms: 179908
explicit: false
by artist: Frédéric Chopin
by artist: Abbey Simon
in album: Best of Chopin
  type: MusicAlbum
  date published: 2019-06-27
popularity: 3
genre: classical
genre: early-romantic-era
genre: polish-classical
isrc code: USZDG0700351
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZDG0700351
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e10f8e4a4af071913bdfbc5ee64cf1766e3aa7037643dc59e9045b75934b554. 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/USZDG0700351.
  date published: 2026-07-08T03:20:19Z
audio: Ballade No. 1 in G Minor, Op. 23
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  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.384
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
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  additional property: Liveness
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Fantaisie-Impromptu in C-Sharp Minor, Op. 66
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duration: PT5M1S
duration ms: 301495
explicit: false
by artist: Frédéric Chopin
by artist: Abbey Simon
in album: Best of Chopin
  type: MusicAlbum
  date published: 2019-06-27
popularity: 3
genre: classical
genre: early-romantic-era
genre: polish-classical
isrc code: USZDG0602776
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZDG0602776
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c86d3769d9444c4d8f0c9634af3eccefd2f174a3cc5784e86b219cf6524a23f. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USZDG0602776.
  date published: 2026-07-31T20:22:46Z
audio: Fantaisie-Impromptu in C-Sharp Minor, Op. 66
  type: AudioObject
  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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    value: 1
  additional property: Time Signature
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  additional property: Danceability
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  additional property: Acousticness
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Ballade No. 2 in F Major, Op. 38
type: MusicRecording
duration: PT2M7S
duration ms: 127550
explicit: false
by artist: Frédéric Chopin
by artist: Abbey Simon
in album: Best of Chopin
  type: MusicAlbum
  date published: 2019-06-27
popularity: 2
genre: classical
genre: early-romantic-era
genre: polish-classical
isrc code: USZDG0700357
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960485
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZDG0700357
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1677d0749a68d626c67408b08c6a9fc80d9a637c35213e6da3ab119e59b00d. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/USZDG0700357.
  date published: 2026-08-01T00:10:46Z
audio: Ballade No. 2 in F Major, Op. 38
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.489
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.392
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.267
  additional property: Loudness (dB)
    type: PropertyValue
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    type: PropertyValue
    value: Major