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followers: 20
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additional property: OTSVerifyInstructions
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track: Sonata for Violoncello and Basso continuo, RV 42: I. Preludio. Largo
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  by artist: Antonio Vivaldi
  by artist: Sol Gabetta
  by artist: Andrés Gabetta
  by artist: Giorgio Paronuzzi
  by artist: Eduardo Egüez
  by artist: Martin Zeller
  in album: Il Progetto Vivaldi 2
    type: MusicAlbum
    date published: 2011-09-19
  popularity: 16
  genre: classical
  genre: early-music
  genre: baroque
  genre: concerto
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:30:09Z
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track: Sonata for Violoncello and Basso continuo, RV 42: III. Sarabanda. Largo
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  by artist: Giorgio Paronuzzi
  by artist: Eduardo Egüez
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  in album: Il Progetto Vivaldi 2
    type: MusicAlbum
    date published: 2011-09-19
  popularity: 16
  genre: classical
  genre: early-music
  genre: baroque
  genre: concerto
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    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: 2026-07-02T03:30:09Z
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track: Arpeggione Sonata in A Minor, D. 821: I. Allegro moderato
track: Arpeggione Sonata in A Minor, D. 821: II. Adagio

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Arpeggione Sonata in A Minor, D. 821: I. Allegro moderato
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duration: PT12M42S
duration ms: 762733
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by artist: Franz Schubert
by artist: Martin Zeller
by artist: Giorgio Paronuzzi
in album: Arpeggione - A Forgotten Instrument
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  date published: 2024-07-05
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dfe34ea716619aede22f986d1d3439378436787bb36e3e66e8afb5ca961aaf. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/CHE272402667 — a six-check JSON result.
  date published: 2026-07-31T08:26:41Z
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Arpeggione Sonata in A Minor, D. 821: II. Adagio
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duration: PT3M30S
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by artist: Giorgio Paronuzzi
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genre: classical
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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: 2026-07-31T18:48:12Z
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