Whirlpool Productions
type: MusicGroup
description: Whirlpool Productions is a German house music project formed in 1991 from Cologne, consisting of musicians and producers Eric D. Clark, Justus Köhncke and Hans Nieswandt. Musical career Whirlpool Pro
track: From Disco To Disco
  type: MusicRecording
  duration: PT5M56S
  duration ms: 356346
  explicit: false
  by artist: Whirlpool Productions
  in album: Nova 40 ans de Grand Mix
    type: MusicAlbum
    date published: 2023-11-24
  isrc code: DED579605120
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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    value: 2026-06-13T12:47:07Z
  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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa482d2632f8533beb2e4c215577bf9e7584bf237c7ff783a6932f391cb597d9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DED579605120 — a six-check JSON result.
    date published: 2026-06-13T12:47:07Z
  audio: From Disco To Disco
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 123.877
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.863
    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
      value: 0.058
    additional property: Acousticness
      type: PropertyValue
      value: 0.288
    additional property: Instrumentalness
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      value: 0.058
    additional property: Liveness
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    additional property: Valence (Positivity)
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      value: 0.961
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.077
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major