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description: Denis Viktorovich Kozhukhin (; born in Gorky, 2 July 1986) is a Russian pianist who was awarded third prize in the 2006 Leeds International Piano Competition. He was also awarded first prize in the 20
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track: Songs Without Words, Book 2, Op. 30: No. 6 in F-Sharp Minor, MWV U 110 "Venetianisches Gondellied"
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track: Piano Concerto in G Major, M. 83: II. Adagio assai
track: Lyrical Pieces, Op. 12: No. 1, Arietta
track: Lyrical Pieces, Op. 12: No. 2, Waltz
track: Lyrical Pieces, Op. 12: No. 4, Elves' dance

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Piano Concerto in G Major, M. 83: II. Adagio assai
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Lyrical Pieces, Op. 12: No. 1, Arietta
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subject of: OpenTimestamps Proof of Existence
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Lyrical Pieces, Op. 12: No. 2, Waltz
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Lyrical Pieces, Op. 12: No. 4, Elves' dance
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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 0x706450c0d0349d0b0fcc2cb0d314baf2adc6d2fd32c759f360acb39fff966f87. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421901615 — a six-check JSON result.
  date published: 2026-07-07T16:07:00Z
audio: Lyrical Pieces, Op. 12: No. 4, Elves' dance
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.97
  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: 0.503
  additional property: Energy
    type: PropertyValue
    value: 0.063
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.903
  additional property: Liveness
    type: PropertyValue
    value: 0.09
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.867
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.654
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major