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description: Klaus Mäkelä (; born 17 January 1996) is a Finnish conductor and cellist. He is the chief conductor of the Oslo Philharmonic, and music director of the Orchestre de Paris. Mäkelä is also chief cond
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track: Petrushka, K12 (1947 Version): II. Petrushka's Room
track: Petrushka, K12 (1947 Version): IIIa. The Moor's Room – IIIb. Dance of the Ballerina
track: Violin Concerto in D Minor, Op. 47: I. Allegro moderato
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Petrushka, K12 (1947 Version): II. Petrushka's Room
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subject of: OpenTimestamps Proof of Existence
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Petrushka, K12 (1947 Version): IIIa. The Moor's Room – IIIb. Dance of the Ballerina
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subject of: OpenTimestamps Proof of Existence
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Violin Concerto in D Minor, Op. 47: I. Allegro moderato
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
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Violin Concerto in D Minor, Op. 47: II. Adagio di molto
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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 0xe5fc5b9c83a792d798d0322cd4c076168156255b6e636dcf449cf1ef349a2f5e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBBBC2400110.
  date published: 2026-06-13T13:32:09Z
audio: Violin Concerto in D Minor, Op. 47: II. Adagio di molto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.123
  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: 0.103
  additional property: Energy
    type: PropertyValue
    value: 0.132
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.958
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.739
  additional property: Liveness
    type: PropertyValue
    value: 0.154
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.034
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.715
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major