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album: Concertos pour clarinette By Mozart, Weber, & Rossini
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  date published: 2009-10-01
track: Concerto pour clarinette, alto et orchestre, Op. 88: II. Allegro moderato
track: Romance pour alto et orchestre, Op. 85: Andante con moto
track: Concerto pour clarinette, alto et orchestre, Op. 88: I. Andante con moto

Concerto pour clarinette, alto et orchestre, Op. 88: II. Allegro moderato
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by artist: Arnaud Thorette
by artist: Johan Farjot
by artist: Orchestra Philharmonique de Liège Wallonie Bruxelles
by artist: Pascal Rophé
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  date published: 2026-07-08T03:20:19Z
audio: Concerto pour clarinette, alto et orchestre, Op. 88: II. Allegro moderato
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Romance pour alto et orchestre, Op. 85: Andante con moto
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  date published: 2026-07-08T08:56:20Z
audio: Romance pour alto et orchestre, Op. 85: Andante con moto
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Concerto pour clarinette, alto et orchestre, Op. 88: I. Andante con moto
type: MusicRecording
duration: PT7M0S
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by artist: Max Bruch
by artist: Jean-Luc Votano
by artist: Arnaud Thorette
by artist: Johan Farjot
by artist: Orchestra Philharmonique de Liège Wallonie Bruxelles
by artist: Pascal Rophé
in album: Bruch: Œuvres pour clarinette et alto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T19:53:57Z
audio: Concerto pour clarinette, alto et orchestre, Op. 88: I. Andante con moto
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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