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type: MusicGroup
genre: classical
popularity: 33
followers: 172
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 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. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin 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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album: VIVALDI: Oboe Concertos, Vol. 2
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  date published: 1993-12-08
album: Vivaldi For Inspiration
  type: MusicAlbum
  date published: 2022-01-14
album: Vivaldi For Study
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  date published: 2021-12-24
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    by artist: Takako Nishizaki
    by artist: Capella Istropolitana
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      date published: 2021-12-24
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    genre: early-music
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    additional property: OTSTimestamp
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    additional property: OTSVerifyInstructions
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-31T23:51:35Z
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  track: Cello Concerto in C Minor, Rv 401: Ii. Adagio
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    by artist: City of London Sinfonia
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    genre: classical
    genre: early-music
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-31T00:26:26Z
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album: Relaxing Vivaldi
album: Mosonyi, M.: Piano Trio / Grand Nocturne
album: Great Baroque Masterpieces
album: Vivaldi: Oboe Concertos, Vol. 1
album: A Guided Tour of the Baroque Era, Vol. 4
album: Outstanding Oboe
album: Truscott: Chamber Music
album: Donizetti: Double Concerto / Flute Concertino / Clarinet Concertino
album: Liebesleid - Classical Favourites for Relaxing and Dreaming
album: Kosa, G.: In Praise of Creation / Mocking / A Refutation of Transitoriness / Afterlife / Happy Nonsense (Home Concert)

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Relaxing Vivaldi
type: MusicAlbum
date published: 2021-10-15
track: Concerto for 2 Oboes in C Major, RV 534: II. Largo
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  by artist: Stefan Schilli
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  by artist: Judit Kiss-Domonkos
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    date published: 2021-10-15
  popularity: 1
  genre: classical
  genre: early-music
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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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    date published: 2026-07-08T03:20:19Z
  audio: Concerto for 2 Oboes in C Major, RV 534: II. Largo
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Mosonyi, M.: Piano Trio / Grand Nocturne
type: MusicAlbum
date published: 1999-04-26

Great Baroque Masterpieces
type: MusicAlbum
date published: 2012-04-24

Vivaldi: Oboe Concertos, Vol. 1
type: MusicAlbum
date published: 2001-07-03

A Guided Tour of the Baroque Era, Vol. 4
type: MusicAlbum
date published: 2013-07-09

Outstanding Oboe
type: MusicAlbum
date published: 2019-03-08

Truscott: Chamber Music
type: MusicAlbum
date published: 1994-12-05

Donizetti: Double Concerto / Flute Concertino / Clarinet Concertino
type: MusicAlbum
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track: Sinfonia a soli instrumenti di fiato in G Minor: Andante (recon. B. Pauler)
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  by artist: Pal Bakor
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  by artist: Camerata De Budapest
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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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    date published: 2026-07-30T22:27:30Z
  audio: Sinfonia a soli instrumenti di fiato in G Minor: Andante (recon. B. Pauler)
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track: Flute Sonata (Concertino) in C Minor: Largo - Allegro (orch. W. Hoffmann)
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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
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    date published: 2026-07-08T03:20:19Z
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  subject of: OpenTimestamps Proof of Existence
  audio: Oboe Sonata in F Major (arr. W. Hoffmann): I. Andante
track: Oboe Sonata in F Major (arr. W. Hoffmann): II. Allegro
track: Concerto for Violin and Cello in D Minor (recon. J. Wojciechowski): I. Allegro ma non troppo
track: Concerto for Violin and Cello in D Minor (recon. J. Wojciechowski): II. Andante
track: Concerto for Violin and Cello in D Minor (recon. J. Wojciechowski): III. Rondo (Allegro moderato)
track: Cor Anglais Concertino in G Major: Andante con variazioni
track: Clarinet Concerto in B-Flat Major (reconstructed R. Meylan): I. Andante sostenuto
track: Clarinet Concerto in B-Flat Major (reconstructed R. Meylan): II. Allegretto

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Oboe Sonata in F Major (arr. W. Hoffmann): I. Andante
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Oboe Sonata in F Major (arr. W. Hoffmann): II. Allegro
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  date published: 2026-07-31T20:42:35Z
audio: Oboe Sonata in F Major (arr. W. Hoffmann): II. Allegro
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Concerto for Violin and Cello in D Minor (recon. J. Wojciechowski): I. Allegro ma non troppo
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Concerto for Violin and Cello in D Minor (recon. J. Wojciechowski): II. Andante
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Concerto for Violin and Cello in D Minor (recon. J. Wojciechowski): III. Rondo (Allegro moderato)
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subject of: OpenTimestamps Proof of Existence
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audio: Concerto for Violin and Cello in D Minor (recon. J. Wojciechowski): III. Rondo (Allegro moderato)
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Cor Anglais Concertino in G Major: Andante con variazioni
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
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Clarinet Concerto in B-Flat Major (reconstructed R. Meylan): I. Andante sostenuto
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Clarinet Concerto in B-Flat Major (reconstructed R. Meylan): II. Allegretto
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by artist: Gaetano Donizetti
by artist: Raymond Meylan
by artist: Béla Kovács
by artist: Camerata De Budapest
by artist: Laszlo Kovacs
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Liebesleid - Classical Favourites for Relaxing and Dreaming
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date published: 1998-06-18

Kosa, G.: In Praise of Creation / Mocking / A Refutation of Transitoriness / Afterlife / Happy Nonsense (Home Concert)
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date published: 2014-07-15