Sofia Soloists Chamber Ensemble
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genre: neoclassical
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album: Maurice Ravel - Ottorino Respighi: Selected Works
  type: MusicAlbum
  date published: 1981-01-10
album: Dmitri Shostakovich: Chamber Symphony, Op. 110a - Arthur Honegger: Symphony No. 2 for trumpet and strings
  type: MusicAlbum
  date published: 1981-02-16
album: Sofia Soloists: Bulgarian Composers
  type: MusicAlbum
  date published: 2002
album: Tellemann, Britten, Schubert & Mahler
  type: MusicAlbum
  date published: 2004
track: Concerto for Piano, Strings and Continuo No. 1 in D Minor, BWV 1052: II. Adagio
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  by artist: Johann Sebastian Bach
  by artist: Sofia Soloists Chamber Ensemble
  by artist: Dora Milanova
  by artist: Vassil Kazandjiev
  in album: Catnap Classics: For Peaceful Sleep, Naps & Dreams
    type: MusicAlbum
    date published: 2015-08-18
  genre: classical
  genre: classical-piano
  genre: early-music
  genre: baroque
  genre: chamber-music
  genre: concerto
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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: 2026-07-08T03:20:19Z
  audio: Concerto for Piano, Strings and Continuo No. 1 in D Minor, BWV 1052: II. Adagio
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