Igor Butman
type: MusicGroup
genre: hard bop
description: Igor Mikhailovich Butman (; born 27 October 1961) is a Russian jazz saxophonist born in Leningrad, Soviet Union (now St. Petersburg, Russia) in 1961. Butman holds dual citizenship for both the United
popularity: 8
followers: 1716
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-20T10:56:20Z
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album: Falling Out
  type: MusicAlbum
  date published: 1993
album: Magic Land
  type: MusicAlbum
  date published: 2007-03-01
album: Magic Land
  type: MusicAlbum
  date published: 2007-11-05
album: Nostalgie
  type: MusicAlbum
  date published: 2009
album: Golden Sunray
  type: MusicAlbum
  date published: 2016-04-04
album: Winter Fairytale
  type: MusicAlbum
  date published: 2016-12-26
album: Only Now
  type: MusicAlbum
  date published: 2021-12-10
album: Images. Mussorgsky and Borodin
  type: MusicAlbum
  date published: 2024-12-03
track: Once In A While
  type: MusicRecording
  duration: PT2M13S
  duration ms: 133413
  explicit: false
  by artist: Rich Perry
  by artist: Larry Schneider
  by artist: Igor Butman
  by artist: Andy LaVerne Steve LaSpina
  by artist: Billy Drummond
  in album: Jam Session Vol. 12
    type: MusicAlbum
    date published: 2004
  genre: big-band
  isrc code: DKARS0402005
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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
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    date published: 2026-07-02T03:55:08Z
  audio: Once In A While
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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      value: 5
    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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      value: Eb
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