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genre: classical piano
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subject of: OpenTimestamps Proof of Existence
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album: Sleep Classical Music
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album: Classical Music Meditation
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album: Рахманинов: Лучшая классическая музыка
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album: Ambient Study Music
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-02T03:30:09Z
    audio: Turn the Volume Down and Sleep
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  track: Aria (From Goldberg Variations, BWV 988)
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    subject of: OpenTimestamps Proof of Existence
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  track: Sonnet in C Major
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album: Sleep Piano Music
album: Mozart: Classical Piano Music
album: Most Beautiful Piano Pieces
album: The Best
album: Beethoven: Famous Classical Music
album: Mozart: Famous Classical Music
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album: Mozart: Piano
album: Детская музыка
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album: Bryukhno, Nazaykinskaya, Soukhovetski, Karmanov: New Piano Music
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album: Chopin: Piano
album: 肖邦：钢琴曲
album: 贝多芬: 钢琴曲
album: Scriabin: Preludes, Etudes & Poèmes
album: Bryukhno, Satie, Grieg, Beethoven, Mozart, Bach, Schumann, Debussy: Peaceful Piano Music
album: Tchaikovsky: Children's Album, Op. 39
album: Mozart, Brahms, Bach, Debussy, Satie, Bryukhno, Beethoven: Classical Lullabies
album: Luminescence
album: Bach, Beethoven, Brahms, Bryukhno, Debussy, Glinka, Krylatov, Massenet, Mozart, Satie: Baby Sleep Music
track: Peer Gynt Suite No. 1, Op. 46: I. Morning Mood (Arr. for 2 Pianos)
track: Herz und Mund und Tat und Leben, BWV 147: X. Chorale. Jesu, Joy of Man's Desiring (Arr. for Piano by Myra Hess)
track: Adagio in G Minor for Strings and Organ "Albinoni's Adagio" (Arr. for Violin and Piano)
track: Suite Bergamasque, L. 75: Clair de Lune
track: 14 Romances, Op. 34: No. 14, Vocalise (Arr. for Piano by Vyacheslav Gryaznov)
track: Thaïs: Meditation (Arr. for Violin and Piano)
track: Orphée et Eurydice, Wq. 41: Mélodie (Transcr. for Violin and Piano by Fritz Kreisler)
track: Melody in A Minor (From "The High Pass")
track: Goldberg Variations, BWV 988: Aria
track: Bagatelle No. 25 in A Minor, WoO 59 "Für Elise"

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Hope
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Hope
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Peace
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:16:32Z
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Sonnet in C Major
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
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Prelude B Minor
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7342189903e93d0c69db2ff85de9f4088ceff84c87c4440d6e3cb6a102e0649. 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/EEUV32200022.
  date published: 2026-07-02T03:55:08Z
audio: Prelude B Minor
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  additional property: Valence (Positivity)
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Sleep Piano Music
type: MusicAlbum
date published: 2024-06-06

Mozart: Classical Piano Music
type: MusicAlbum
date published: 2024-06-01

Most Beautiful Piano Pieces
type: MusicAlbum
date published: 2024-02-26

The Best
type: MusicAlbum
date published: 2023-12-01

Beethoven: Famous Classical Music
type: MusicAlbum
date published: 2023-11-15

Mozart: Famous Classical Music
type: MusicAlbum
date published: 2023-11-14

Mozart: Piano Classical Music
type: MusicAlbum
date published: 2023-10-09

Mozart: Piano Masterworks
type: MusicAlbum
date published: 2023-09-12

Mozart: Piano Music
type: MusicAlbum
date published: 2023-09-05

Tchaikovsky: Piano Music
type: MusicAlbum
date published: 2023-08-25

Beethoven Piano Music
type: MusicAlbum
date published: 2023-08-25

Bach: Piano Music
type: MusicAlbum
date published: 2023-08-25

Tchaikovsky: Piano Classical Music
type: MusicAlbum
date published: 2023-08-23

Piano Music Masterpieces
type: MusicAlbum
date published: 2023-08-01

Calm Piano
type: MusicAlbum
date published: 2023-06-06
track: Variations on an Original Theme, Op. 36 "Enigma": Var. IX. Adagio "Nimrod" (Version for Piano)
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  by artist: Katya Kramer-Lapin
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    type: MusicAlbum
    date published: 2023-06-06
  genre: classical
  genre: late-romantic-era
  genre: british-modern-classical
  genre: victorian-britain
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf491992f89426d5a1f6b25f442af5adf65767d471eef54f7e043f49791ce66b. 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/EEUV32300078.
    date published: 2026-07-02T03:55:08Z
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    additional property: Time Signature
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Valence (Positivity)
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track: Herz und Mund und Tat und Leben, BWV 147: X. Chorale. Jesu, Joy of Man's Desiring (Arr. for Piano by Myra Hess)
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  by artist: Johann Sebastian Bach
  by artist: Katya Kramer-Lapin
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    type: MusicAlbum
    date published: 2023-06-06
  genre: classical
  genre: classical-piano
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:53:27Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158d223ebc3d00d17feb0106a5deda1ed311fc22e84c8539f8e3eeedf8031704. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/EEUV32300079.
    date published: 2026-07-08T03:53:27Z
  audio: Herz und Mund und Tat und Leben, BWV 147: X. Chorale. Jesu, Joy of Man's Desiring (Arr. for Piano by Myra Hess)
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Beethoven: Classical Music
type: MusicAlbum
date published: 2023-05-23

Bach: Piano
type: MusicAlbum
date published: 2023-05-17

Bach: Classical Piano Masterworks
type: MusicAlbum
date published: 2023-05-12
track: Herz und Mund und Tat und Leben, BWV 147: X. Chorale. Jesu, Joy of Man's Desiring (Arr. for Piano by Myra Hess)
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  by artist: Johann Sebastian Bach
  by artist: Katya Kramer-Lapin
  in album: Bach: Classical Piano Masterworks
    type: MusicAlbum
    date published: 2023-05-12
  genre: classical
  genre: classical-piano
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-02T11:38:34Z
  audio: Herz und Mund und Tat und Leben, BWV 147: X. Chorale. Jesu, Joy of Man's Desiring (Arr. for Piano by Myra Hess)
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Tchaikovsky: Classical Piano Masterworks
type: MusicAlbum
date published: 2023-05-11

Mozart: Classical Piano Masterworks
type: MusicAlbum
date published: 2023-05-10

Beethoven: Piano Classical Music
type: MusicAlbum
date published: 2023-05-08

Beethoven: Piano
type: MusicAlbum
date published: 2023-03-14

Mozart: Piano
type: MusicAlbum
date published: 2023-03-03
track: Piano Sonata No. 16 in C Major, K. 545 "Sonata semplice": I. Allegro
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-06T01:25:57Z
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track: Piano Sonata No. 11 in A Major, K. 331/300i: I. Andante grazioso
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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
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  subject of: OpenTimestamps Proof of Existence
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track: Variations on "Ah, vous dirai-je maman", K.265: Var. VII
track: Variations on "Ah, vous dirai-je maman", K.265: Var. IX
track: Sonata No. 10 in C Major, K. 330: I. Allegro moderato
track: Fantasia in D Minor, KV 397

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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
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value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

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

Variations on "Ah, vous dirai-je maman", K.265: Theme "Twinkle, Twinkle, Little Star"
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Key Name
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Variations on "Ah, vous dirai-je maman", K.265: Var. VII
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duration ms: 42322
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by artist: Wolfgang Amadeus Mozart
by artist: Alexander Siloti
by artist: Katya Kramer-Lapin
in album: Mozart: Piano
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genre: classical
genre: classical-era
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff4888bec7d29ad2ec1fd5594f54af073722f14886b72b886b14e4c2921a8b5. 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/EEUV32300022.
  date published: 2026-07-08T03:20:19Z
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Variations on "Ah, vous dirai-je maman", K.265: Var. IX
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duration: PT0M52S
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by artist: Wolfgang Amadeus Mozart
by artist: Alexander Siloti
by artist: Katya Kramer-Lapin
in album: Mozart: Piano
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genre: classical
genre: classical-era
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce6b83ce8399843b1a133c60d2a8dcdfc324e377fbcf64c24d174118adfc63e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/EEUV32300024.
  date published: 2026-07-08T03:53:27Z
audio: Variations on "Ah, vous dirai-je maman", K.265: Var. IX
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Sonata No. 10 in C Major, K. 330: I. Allegro moderato
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by artist: Vladislav Mikhalchuk
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genre: classical
genre: classical-era
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a20c6ba3cefb0db5b2d8845c619a2477d1785c03d849b3a32065ae15ae9539. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/RUB971400014.
  date published: 2026-07-02T11:38:34Z
audio: Sonata No. 10 in C Major, K. 330: I. Allegro moderato
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Fantasia in D Minor, KV 397
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duration ms: 334602
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by artist: Wolfgang Amadeus Mozart
by artist: Mikhail Mordvinov
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genre: classical-era
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additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a577a07ddd20d13d0d1e625a6a4894d75a0fc68a6df6f19f80184f841d0ece. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUB011000003.
  date published: 2026-07-08T03:53:27Z
audio: Fantasia in D Minor, KV 397
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Детская музыка
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track: Турецкий марш (Третья часть из Сонаты для фортепиано № 11 ля минор, K.331/300i)
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    date published: 2023-02-24
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c636a9aee86de3c994006a88a1329799e49ecd045fcbaa059bda10b9c1ace0. 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/EEUV32200024.
    date published: 2026-07-06T06:56:49Z
  audio: Турецкий марш (Третья часть из Сонаты для фортепиано № 11 ля минор, K.331/300i)
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    additional property: Danceability
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track: Полонез Огинского
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  by artist: Alex Tor
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:30:09Z
  audio: Полонез Огинского
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track: К Элизе
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  by artist: Katya Kramer-Lapin
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  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: EEUV32200021
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  subject of: OpenTimestamps Proof of Existence
  audio: К Элизе
track: Шутка (Из Оркестровой сюиты №2 си минор, BWV 1067)

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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf049ea4ef88000166916f8734f0cb557edf575e6867d44afbdb0fb0d7d4aa2. 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/EEUV32200021.
date published: 2026-07-02T03:55:08Z

К Элизе
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 95.09
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.34
additional property: Energy
  type: PropertyValue
  value: 0.095
additional property: Speechiness
  type: PropertyValue
  value: 0.058
additional property: Acousticness
  type: PropertyValue
  value: 0.994
additional property: Instrumentalness
  type: PropertyValue
  value: 0.9
additional property: Liveness
  type: PropertyValue
  value: 0.071
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.16
additional property: Loudness (dB)
  type: PropertyValue
  value: -28.638
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Minor

Шутка (Из Оркестровой сюиты №2 си минор, BWV 1067)
type: MusicRecording
duration: PT1M24S
duration ms: 84872
explicit: false
by artist: Johann Sebastian Bach
by artist: Alex Tor
in album: Детская музыка
  type: MusicAlbum
  date published: 2023-02-24
genre: classical
genre: classical-piano
isrc code: RUB361900002
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T09:44:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x28dd2906613928d1acc0a2c45f3aa82dedca50fb8ce2b6c5c7969a647a5950b5
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/RUB361900002
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 0x28dd2906613928d1acc0a2c45f3aa82dedca50fb8ce2b6c5c7969a647a5950b5. 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/RUB361900002.
  date published: 2026-07-02T03:55:08Z
audio: Шутка (Из Оркестровой сюиты №2 си минор, BWV 1067)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.374
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.536
  additional property: Energy
    type: PropertyValue
    value: 0.064
  additional property: Speechiness
    type: PropertyValue
    value: 0.064
  additional property: Acousticness
    type: PropertyValue
    value: 0.729
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.216
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.806
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.748
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Rachmaninoff: Piano
type: MusicAlbum
date published: 2023-02-13

Bryukhno, Nazaykinskaya, Soukhovetski, Karmanov: New Piano Music
type: MusicAlbum
date published: 2023-02-07
track: Emily
  type: MusicRecording
  duration: PT3M0S
  duration ms: 180221
  explicit: false
  by artist: Polina Nazaykinskaya
  by artist: Katya Kramer-Lapin
  in album: Bryukhno, Nazaykinskaya, Soukhovetski, Karmanov: New Piano Music
    type: MusicAlbum
    date published: 2023-02-07
  isrc code: UK6822200777
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-22T05:51:06+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x968f1202e07b8dab6a59dd7cf016471ae80292bc6d8f55ca83cfd0694c23b87f
  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/UK6822200777
  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 0x968f1202e07b8dab6a59dd7cf016471ae80292bc6d8f55ca83cfd0694c23b87f. 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/UK6822200777.
    date published: 2026-07-02T05:09:12Z
  audio: Emily
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 160.158
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.308
    additional property: Energy
      type: PropertyValue
      value: 0.258
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.994
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.919
    additional property: Liveness
      type: PropertyValue
      value: 0.088
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.087
    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.55
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Romance in E-Flat Major (Version for Piano)
  type: MusicRecording
  duration: PT3M9S
  duration ms: 189991
  explicit: false
  by artist: Sergey Bryukhno
  by artist: Katya Kramer-Lapin
  in album: Bryukhno, Nazaykinskaya, Soukhovetski, Karmanov: New Piano Music
    type: MusicAlbum
    date published: 2023-02-07
  isrc code: EEUV32200027
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-21T07:10:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x09ab656c65087a68f4b51ab9914e634bd4d992077777c84de917a2a63f306d6f
  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/EEUV32200027
  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 0x09ab656c65087a68f4b51ab9914e634bd4d992077777c84de917a2a63f306d6f. 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/EEUV32200027.
    date published: 2026-07-02T03:55:08Z
  audio: Romance in E-Flat Major (Version for Piano)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 90.715
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.268
    additional property: Energy
      type: PropertyValue
      value: 0.009
    additional property: Speechiness
      type: PropertyValue
      value: 0.049
    additional property: Acousticness
      type: PropertyValue
      value: 0.995
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.948
    additional property: Liveness
      type: PropertyValue
      value: 0.07
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.278
    additional property: Loudness (dB)
      type: PropertyValue
      value: -37.828
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major

Tchaikovsky: Piano
type: MusicAlbum
date published: 2023-02-03

Chopin: Piano
type: MusicAlbum
date published: 2023-01-23

肖邦：钢琴曲
type: MusicAlbum
date published: 2022-12-15

贝多芬: 钢琴曲
type: MusicAlbum
date published: 2022-11-21

Scriabin: Preludes, Etudes & Poèmes
type: MusicAlbum
date published: 2022-10-03

Bryukhno, Satie, Grieg, Beethoven, Mozart, Bach, Schumann, Debussy: Peaceful Piano Music
type: MusicAlbum
date published: 2022-09-16

Tchaikovsky: Children's Album, Op. 39
type: MusicAlbum
date published: 2022-07-08
track: Children's Album, Op. 39: No. 3, Playing Hobby-Horses
  type: MusicRecording
  duration: PT0M38S
  duration ms: 38132
  explicit: false
  by artist: Pyotr Ilyich Tchaikovsky
  by artist: Katya Kramer-Lapin
  in album: Tchaikovsky: Children's Album, Op. 39
    type: MusicAlbum
    date published: 2022-07-08
  isrc code: UK6822200748
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T19:49:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7773661f519e93b0766f7c543adc9f60c3c311d084d8abc5b65e09f4caa9efca
  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/UK6822200748
  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 0x7773661f519e93b0766f7c543adc9f60c3c311d084d8abc5b65e09f4caa9efca. 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/UK6822200748.
    date published: 2026-07-08T03:22:41Z
  audio: Children's Album, Op. 39: No. 3, Playing Hobby-Horses
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 134.816
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.686
    additional property: Energy
      type: PropertyValue
      value: 0.355
    additional property: Speechiness
      type: PropertyValue
      value: 0.057
    additional property: Acousticness
      type: PropertyValue
      value: 0.995
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.934
    additional property: Liveness
      type: PropertyValue
      value: 0.117
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.921
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.35
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Children's Album, Op. 39: No. 9, The New Doll
  type: MusicRecording
  duration: PT0M31S
  duration ms: 31374
  explicit: false
  by artist: Pyotr Ilyich Tchaikovsky
  by artist: Katya Kramer-Lapin
  in album: Tchaikovsky: Children's Album, Op. 39
    type: MusicAlbum
    date published: 2022-07-08
  isrc code: UK6822200754
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T22:35:07+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8fa4d9c209c72946fdb61a3dd502db722f49ca078e7f5bb365ec4e923128906f
  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/UK6822200754
  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 0x8fa4d9c209c72946fdb61a3dd502db722f49ca078e7f5bb365ec4e923128906f. 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/UK6822200754.
    date published: 2026-07-08T03:22:41Z
  audio: Children's Album, Op. 39: No. 9, The New Doll
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 111.866
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.364
    additional property: Energy
      type: PropertyValue
      value: 0.273
    additional property: Speechiness
      type: PropertyValue
      value: 0.07
    additional property: Acousticness
      type: PropertyValue
      value: 0.996
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.944
    additional property: Liveness
      type: PropertyValue
      value: 0.116
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.377
    additional property: Loudness (dB)
      type: PropertyValue
      value: -26.984
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Children's Album, Op. 39: No. 11, Russian Song
  type: MusicRecording
  duration: PT0M35S
  duration ms: 35533
  explicit: false
  by artist: Pyotr Ilyich Tchaikovsky
  by artist: Katya Kramer-Lapin
  in album: Tchaikovsky: Children's Album, Op. 39
    type: MusicAlbum
    date published: 2022-07-08
  isrc code: UK6822200756
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T21:23:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x779e66e50bbc0f1cc8365b605e96d068ce4b9e9b0ef70212b68f9c914728539b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Children's Album, Op. 39: No. 11, Russian Song
track: Children's Album, Op. 39: No. 13, Kamarinskaya
track: Children's Album, Op. 39: No. 14, Polka
track: Children's Album, Op. 39: No. 15, Italian Song
track: Children's Album, Op. 39: No. 17, German Song
track: Children's Album, Op. 39: No. 18, Neapolitan Song
track: Children's Album, Op. 39: No. 19, Nanny's Story
track: Children's Album, Op. 39: No. 21, Sweet Dreams
track: Children's Album, Op. 39: No. 24, In Church

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK6822200756

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

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779e66e50bbc0f1cc8365b605e96d068ce4b9e9b0ef70212b68f9c914728539b. 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/UK6822200756.
date published: 2026-07-08T03:20:19Z

Children's Album, Op. 39: No. 11, Russian Song
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 127.72
additional property: Musical Key
  type: PropertyValue
  value: 5
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.6
additional property: Energy
  type: PropertyValue
  value: 0.157
additional property: Speechiness
  type: PropertyValue
  value: 0.071
additional property: Acousticness
  type: PropertyValue
  value: 0.996
additional property: Instrumentalness
  type: PropertyValue
  value: 0.965
additional property: Liveness
  type: PropertyValue
  value: 0.129
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.694
additional property: Loudness (dB)
  type: PropertyValue
  value: -24.255
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Major

Children's Album, Op. 39: No. 13, Kamarinskaya
type: MusicRecording
duration: PT0M34S
duration ms: 34624
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Katya Kramer-Lapin
in album: Tchaikovsky: Children's Album, Op. 39
  type: MusicAlbum
  date published: 2022-07-08
isrc code: UK6822200758
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:00:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xad7d3aebace5077e7f16d0b85a656df973f15df784aca40f6ccbecf8558f3d45
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
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/UK6822200758
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7d3aebace5077e7f16d0b85a656df973f15df784aca40f6ccbecf8558f3d45. 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/UK6822200758.
  date published: 2026-07-08T03:20:19Z
audio: Children's Album, Op. 39: No. 13, Kamarinskaya
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 174.39
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.489
  additional property: Energy
    type: PropertyValue
    value: 0.32
  additional property: Speechiness
    type: PropertyValue
    value: 0.137
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.803
  additional property: Liveness
    type: PropertyValue
    value: 0.169
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.538
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.194
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Children's Album, Op. 39: No. 14, Polka
type: MusicRecording
duration: PT0M51S
duration ms: 51054
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Katya Kramer-Lapin
in album: Tchaikovsky: Children's Album, Op. 39
  type: MusicAlbum
  date published: 2022-07-08
isrc code: UK6822200759
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:14:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0e61f644ef51d018aeade1008223d15e54331c0fa084aad952b99764b821a3ee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK6822200759
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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 0x0e61f644ef51d018aeade1008223d15e54331c0fa084aad952b99764b821a3ee. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK6822200759.
  date published: 2026-07-08T03:53:27Z
audio: Children's Album, Op. 39: No. 14, Polka
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 188.231
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.583
  additional property: Energy
    type: PropertyValue
    value: 0.106
  additional property: Speechiness
    type: PropertyValue
    value: 0.119
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.955
  additional property: Liveness
    type: PropertyValue
    value: 0.095
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.945
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.451
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Children's Album, Op. 39: No. 15, Italian Song
type: MusicRecording
duration: PT0M48S
duration ms: 48838
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Katya Kramer-Lapin
in album: Tchaikovsky: Children's Album, Op. 39
  type: MusicAlbum
  date published: 2022-07-08
isrc code: UK6822200760
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:14:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcd2506eb1658270c691b579c63c39a3c3fc99486ef033aa5449baf16316db4b6
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/UK6822200760
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 0xcd2506eb1658270c691b579c63c39a3c3fc99486ef033aa5449baf16316db4b6. 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/UK6822200760.
  date published: 2026-07-08T03:22:41Z
audio: Children's Album, Op. 39: No. 15, Italian Song
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 187.457
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.388
  additional property: Energy
    type: PropertyValue
    value: 0.066
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.996
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.953
  additional property: Liveness
    type: PropertyValue
    value: 0.086
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.823
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.45
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Children's Album, Op. 39: No. 17, German Song
type: MusicRecording
duration: PT1M0S
duration ms: 60036
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Katya Kramer-Lapin
in album: Tchaikovsky: Children's Album, Op. 39
  type: MusicAlbum
  date published: 2022-07-08
isrc code: UK6822200762
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:31:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2259906f34057d9963169509fc819a73c421b230607505f772a681953ee7ab43
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK6822200762
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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 0x2259906f34057d9963169509fc819a73c421b230607505f772a681953ee7ab43. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK6822200762.
  date published: 2026-07-08T03:53:27Z
audio: Children's Album, Op. 39: No. 17, German Song
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.875
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.58
  additional property: Energy
    type: PropertyValue
    value: 0.097
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.996
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.933
  additional property: Liveness
    type: PropertyValue
    value: 0.118
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.708
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.788
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Children's Album, Op. 39: No. 18, Neapolitan Song
type: MusicRecording
duration: PT1M2S
duration ms: 62631
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Katya Kramer-Lapin
in album: Tchaikovsky: Children's Album, Op. 39
  type: MusicAlbum
  date published: 2022-07-08
isrc code: UK6822200763
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:42:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9aa8ffd0b7652dfb590c011abe60fa87487aabf9f70a76f885351a73c7940573
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/UK6822200763
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 0x9aa8ffd0b7652dfb590c011abe60fa87487aabf9f70a76f885351a73c7940573. 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/UK6822200763.
  date published: 2026-07-08T03:22:41Z
audio: Children's Album, Op. 39: No. 18, Neapolitan Song
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.153
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.527
  additional property: Energy
    type: PropertyValue
    value: 0.153
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.996
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.936
  additional property: Liveness
    type: PropertyValue
    value: 0.125
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.948
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.462
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Children's Album, Op. 39: No. 19, Nanny's Story
type: MusicRecording
duration: PT1M10S
duration ms: 70062
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Katya Kramer-Lapin
in album: Tchaikovsky: Children's Album, Op. 39
  type: MusicAlbum
  date published: 2022-07-08
isrc code: UK6822200764
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T10:33:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe4c06f3f4d2c132b969c98eae7fd75605a424d16a59e613da10986b825d3ec4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957075
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957075
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK6822200764
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:50:38Z
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 0xfe4c06f3f4d2c132b969c98eae7fd75605a424d16a59e613da10986b825d3ec4. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/UK6822200764.
  date published: 2026-07-07T18:50:38Z
audio: Children's Album, Op. 39: No. 19, Nanny's Story
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.01
  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: 0.745
  additional property: Energy
    type: PropertyValue
    value: 0.054
  additional property: Speechiness
    type: PropertyValue
    value: 0.23
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.942
  additional property: Liveness
    type: PropertyValue
    value: 0.08
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.248
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.022
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Children's Album, Op. 39: No. 21, Sweet Dreams
type: MusicRecording
duration: PT2M4S
duration ms: 124502
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Katya Kramer-Lapin
in album: Tchaikovsky: Children's Album, Op. 39
  type: MusicAlbum
  date published: 2022-07-08
isrc code: UK6822200766
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T10:14:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc683ab416457c6a5bdda558ac1c7caae5ef0d2360d9f532609f03fa5a0701072
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957075
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957075
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK6822200766
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:50:38Z
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 0xc683ab416457c6a5bdda558ac1c7caae5ef0d2360d9f532609f03fa5a0701072. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/UK6822200766.
  date published: 2026-07-07T18:50:38Z
audio: Children's Album, Op. 39: No. 21, Sweet Dreams
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 162.704
  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: 0.313
  additional property: Energy
    type: PropertyValue
    value: 0.015
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.995
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.92
  additional property: Liveness
    type: PropertyValue
    value: 0.098
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.202
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.056
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Children's Album, Op. 39: No. 24, In Church
type: MusicRecording
duration: PT2M5S
duration ms: 125957
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Katya Kramer-Lapin
in album: Tchaikovsky: Children's Album, Op. 39
  type: MusicAlbum
  date published: 2022-07-08
isrc code: UK6822200769
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: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Children's Album, Op. 39: No. 24, In Church
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Mozart, Brahms, Bach, Debussy, Satie, Bryukhno, Beethoven: Classical Lullabies
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date published: 2022-06-21

Luminescence
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track: 14 Romances, Op. 34: No. 14, Vocalise (Arr. for Piano by Vyacheslav Gryaznov)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T17:25:41Z
  audio: 14 Romances, Op. 34: No. 14, Vocalise (Arr. for Piano by Vyacheslav Gryaznov)
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Bach, Beethoven, Brahms, Bryukhno, Debussy, Glinka, Krylatov, Massenet, Mozart, Satie: Baby Sleep Music
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track: Lullaby, K. 350
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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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Peer Gynt Suite No. 1, Op. 46: I. Morning Mood (Arr. for 2 Pianos)
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duration ms: 219455
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by artist: Vyacheslav Gryaznov
by artist: Katya Kramer-Lapin
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Peer Gynt Suite No. 1, Op. 46: I. Morning Mood (Arr. for 2 Pianos)
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Herz und Mund und Tat und Leben, BWV 147: X. Chorale. Jesu, Joy of Man's Desiring (Arr. for Piano by Myra Hess)
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by artist: Katya Kramer-Lapin
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Herz und Mund und Tat und Leben, BWV 147: X. Chorale. Jesu, Joy of Man's Desiring (Arr. for Piano by Myra Hess)
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Peer Gynt Suite No. 1, Op. 46: I. Morning Mood (Arr. for 2 Pianos)
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by artist: Vyacheslav Gryaznov
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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: Peer Gynt Suite No. 1, Op. 46: I. Morning Mood (Arr. for 2 Pianos)
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Adagio in G Minor for Strings and Organ "Albinoni's Adagio" (Arr. for Violin and Piano)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Adagio in G Minor for Strings and Organ "Albinoni's Adagio" (Arr. for Violin and Piano)
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Suite Bergamasque, L. 75: Clair de Lune
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Suite Bergamasque, L. 75: Clair de Lune
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14 Romances, Op. 34: No. 14, Vocalise (Arr. for Piano by Vyacheslav Gryaznov)
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by artist: Katya Kramer-Lapin
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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audio: 14 Romances, Op. 34: No. 14, Vocalise (Arr. for Piano by Vyacheslav Gryaznov)
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Thaïs: Meditation (Arr. for Violin and Piano)
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by artist: Katya Kramer-Lapin
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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: Thaïs: Meditation (Arr. for Violin and Piano)
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Orphée et Eurydice, Wq. 41: Mélodie (Transcr. for Violin and Piano by Fritz Kreisler)
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by artist: Katya Kramer-Lapin
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Orphée et Eurydice, Wq. 41: Mélodie (Transcr. for Violin and Piano by Fritz Kreisler)
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Melody in A Minor (From "The High Pass")
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Melody in A Minor (From "The High Pass")
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Goldberg Variations, BWV 988: Aria
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subject of: OpenTimestamps Proof of Existence
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audio: Goldberg Variations, BWV 988: Aria
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Bagatelle No. 25 in A Minor, WoO 59 "Für Elise"
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audio: Bagatelle No. 25 in A Minor, WoO 59 "Für Elise"
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    type: PropertyValue
    value: 0.896
  additional property: Liveness
    type: PropertyValue
    value: 0.071
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.16
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.638
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor