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genre: classical
genre: classical piano
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album: Schubert: Wanderfantasie - Klaviersonaten
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album: Mozart: Piano Concertos Nos. 11 - 13
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album: Green Edition - Chopin: Polonaise, Op. Posth. Nos. 11, 13, 15 & Mazurkas, Op. 6, 7, 17
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album: Green Edition - Chopin: Mazurkas, Op. 6, 7, 17 & Polonaise, Op. 71 Nos. 1 - 3
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album: The Brahms Project: Viola Sonatas & Songs
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album: Blue Edition - Chopin: "Heroic Polonaise" & Piano Concerto No. 2, Op. 21
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Fröhlicher Landmann - Album für die Jugend
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Suite Bergamasque, L. 75, III. Clair de Lune
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a03c796867985d21db5923c77e9888678e8cb9004f7716a9bdab1797142a0f8. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USZGD2000004.
  date published: 2026-08-01T01:44:32Z
audio: Papillons, Op. 2: No. 10 in C Major. Vivo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.562
  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: 0.406
  additional property: Energy
    type: PropertyValue
    value: 0.032
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.924
  additional property: Liveness
    type: PropertyValue
    value: 0.106
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.209
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.045
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major