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album: Vivaldi and Albrechtsberger: Concertos for Guitar and Recorder
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      date published: 2026-07-02T03:55:08Z
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      date published: 2026-07-05T05:55:59Z
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track: Concerto for Guitar, Strings and B.c. in D Major: I. Allegro
track: Concerto for Guitar, Strings and B.c. in D Major: III. Allegro
track: Concerto for Guitar, Strings and B.c. in C Major: I. Allegro
track: Concerto for Guitar, Strings and B.c. in D Major: II. Largo

Concerto for Guitar, Strings and B.c. in D Major: I. Allegro
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duration ms: 131840
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by artist: Annette Struck-Vrangos
by artist: Boris Björn Bagger
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  date published: 2009-01-01
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  date published: 2026-07-08T03:53:27Z
audio: Concerto for Guitar, Strings and B.c. in D Major: I. Allegro
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Concerto for Guitar, Strings and B.c. in D Major: III. Allegro
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duration: PT3M39S
duration ms: 219640
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by artist: Sinfonie Orchester Des Sudwestfunks Baden-Baden
by artist: Annette Struck-Vrangos
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in album: Vivaldi: Concerto for Guitar in D and in C - Concerto for Mandolin in E Major and RV 425
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  date published: 2009-01-01
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  date published: 2026-07-08T03:20:19Z
audio: Concerto for Guitar, Strings and B.c. in D Major: III. Allegro
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Concerto for Guitar, Strings and B.c. in C Major: I. Allegro
type: MusicRecording
duration: PT3M5S
duration ms: 185773
explicit: false
by artist: Antonio Vivaldi
by artist: Annette Struck-Vrangos
by artist: Milan Zelenka
by artist: Jozef Zsapka
by artist: Dagmar Zsapkova
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T08:56:20Z
audio: Concerto for Guitar, Strings and B.c. in C Major: I. Allegro
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Concerto for Guitar, Strings and B.c. in D Major: II. Largo
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duration: PT5M28S
duration ms: 328826
explicit: false
by artist: Antonio Vivaldi
by artist: Klaus Arp
by artist: Sinfonie Orchester Des Sudwestfunks Baden-Baden
by artist: Annette Struck-Vrangos
by artist: Boris Björn Bagger
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  date published: 2009-01-01
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T05:15:54Z
audio: Concerto for Guitar, Strings and B.c. in D Major: II. Largo
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  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.954
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.827
  additional property: Liveness
    type: PropertyValue
    value: 0.113
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.104
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.566
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USSJ10812919
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960209
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T05:15:54+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSJ10812919
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960209
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960209
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T05:15:54+00:00
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

Loudness (dB)
type: PropertyValue
value: -15.05

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major