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Variations on "I Got Rhythm" - Remastered 2023
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audio: Variations on "I Got Rhythm" - Remastered 2023
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Rhapsody in Blue - Remastered 2023
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Piano Concerto in F Major: I. Allegro - Remastered 2023
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Piano Concerto in F Major: II. Adagio - Andante con moto - Remastered 2023
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Piano Concerto in F Major: III. Allegro agitato - Remastered 2023
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additional property: OTSVerifyInstructions
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The Typewriter
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by artist: Leonard Slatkin
by artist: St. Louis Symphony
in album: Ich mag keine Klassik, aber das gefällt mir! - Für Kinder
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popularity: 25
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additional property: OTSVerifyInstructions
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  date published: 2026-06-13T13:32:09Z
audio: The Typewriter
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Rhapsody On a Theme By Paganini, Op. 43: Variation No. 18
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by artist: St. Louis Symphony
by artist: Leonard Slatkin
by artist: Abbey Simon
in album: Uplifting Classical - Music to energize your mood
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popularity: 4
genre: classical
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  date published: 2026-07-08T03:53:27Z
audio: Rhapsody On a Theme By Paganini, Op. 43: Variation No. 18
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The Nutcracker, Op. 71, TH 14: Act II: No. 14, Pas de deux. Variation II, Dance of the Sugar-Plum Fairy
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by artist: Leonard Slatkin
by artist: Barbara Liberman
by artist: St. Louis Symphony
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T03:22:41Z
audio: The Nutcracker, Op. 71, TH 14: Act II: No. 14, Pas de deux. Variation II, Dance of the Sugar-Plum Fairy
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Gayaneh Suite No. 3
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by artist: St. Louis Symphony
by artist: Leonard Slatkin
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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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additional property: ProofProfileEvidenceStatus
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  date published: 2026-07-08T08:56:20Z
audio: Gayaneh Suite No. 3
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3 Gymnopédies: No. 1 in D Major
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by artist: St. Louis Symphony
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  date published: 2026-07-22T12:33:25Z
audio: 3 Gymnopédies: No. 1 in D Major
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The Nutcracker, Op. 71, TH 14: Act I: The Nutcracker, Op. 71, Act I, No. 2 March
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audio: The Nutcracker, Op. 71, TH 14: Act I: The Nutcracker, Op. 71, Act I, No. 2 March
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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 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

Eugene Onegin: Polonaise
type: MusicRecording
duration: PT4M49S
duration ms: 289760
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Leonard Slatkin
by artist: St. Louis Symphony
in album: Ich mag keine Klassik, aber das gefällt mir!, Vol. 5
  type: MusicAlbum
  date published: 2016-11-04
popularity: 2
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c06514d26a560d4c27b54c07c00b147a3ee6da111e08c917bc8be10c8829ad. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USBC19606238.
  date published: 2026-08-01T03:13:03Z
audio: Eugene Onegin: Polonaise
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.249
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.406
  additional property: Energy
    type: PropertyValue
    value: 0.146
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.949
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.951
  additional property: Liveness
    type: PropertyValue
    value: 0.064
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.258
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.529
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USBC19606238
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960500
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-08-01T03:13:03+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19606238
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960500
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T03:13:03+00:00
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