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album: Stamic, Voříšek: Symphonies by Old Czech Masters
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track: 12 Concerti grossi con una pastorale, Op. 8, No. 7 in D Minor: I. Allegro
track: 12 Concerti grossi con una pastorale, Op. 8, No. 7 in D Minor: IV. Allegro
track: La stravaganza, Op. 4, No. 3 in G Major, RV 301 in G Major: I. Allegro
track: La stravaganza, Op. 4, No. 3 in G Major, RV 301 in G Major: III. Allegro
track: La stravaganza, Op. 4, No. 2 in E Minor, RV 279 in E Minor: I. Allegro
track: 12 Concerti grossi con una pastorale, Op. 8, No. 7 in D Minor: II. Adagio con affetto & III. Allegro - Adagio
track: 12 Concerti a cinque, Op. 9, No. 10 in F Major: I. Allegro
track: 12 Concerti a cinque, Op. 9, No. 10 in F Major: II. Adagio
track: 12 Concerti a cinque, Op. 9, No. 10 in F Major: III. Allegro
track: Violin Concerto in B-Flat Major: I. Allegro
track: Violin Concerto in B-Flat Major: II. Largo
track: Violin Concerto in B-Flat Major: III. Allegro
track: La stravaganza, Op. 4, No. 2 in E Minor, RV 279 in E Minor: II. Largo

12 Concerti grossi con una pastorale, Op. 8, No. 7 in D Minor: I. Allegro
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12 Concerti grossi con una pastorale, Op. 8, No. 7 in D Minor: IV. Allegro
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  date published: 2026-07-08T03:22:41Z
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La stravaganza, Op. 4, No. 3 in G Major, RV 301 in G Major: I. Allegro
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  date published: 2026-07-08T08:56:20Z
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La stravaganza, Op. 4, No. 3 in G Major, RV 301 in G Major: III. Allegro
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  date published: 2026-07-08T08:56:20Z
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La stravaganza, Op. 4, No. 2 in E Minor, RV 279 in E Minor: I. Allegro
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12 Concerti grossi con una pastorale, Op. 8, No. 7 in D Minor: II. Adagio con affetto & III. Allegro - Adagio
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by artist: Ivan Zenaty
by artist: František Xaver Thuri
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  date published: 2026-08-01T03:50:58Z
audio: 12 Concerti grossi con una pastorale, Op. 8, No. 7 in D Minor: II. Adagio con affetto & III. Allegro - Adagio
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additional property: OTSVerifyInstructions
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12 Concerti a cinque, Op. 9, No. 10 in F Major: I. Allegro
type: MusicRecording
duration: PT4M5S
duration ms: 245906
explicit: false
by artist: Tomaso Albinoni
by artist: Ostrava Janáček Chamber Orchestra
by artist: Ivan Zenaty
by artist: František Xaver Thuri
in album: Albioni, Torelli, Pergolesi, Vivaldi: Italian Baroque Violin Concertos
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genre: classical
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  date published: 2026-07-31T19:53:13Z
audio: 12 Concerti a cinque, Op. 9, No. 10 in F Major: I. Allegro
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additional property: OTSVerifyInstructions
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12 Concerti a cinque, Op. 9, No. 10 in F Major: II. Adagio
type: MusicRecording
duration: PT4M36S
duration ms: 276560
explicit: false
by artist: Tomaso Albinoni
by artist: Ostrava Janáček Chamber Orchestra
by artist: Ivan Zenaty
by artist: František Xaver Thuri
in album: Albioni, Torelli, Pergolesi, Vivaldi: Italian Baroque Violin Concertos
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genre: classical
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T00:26:26Z
audio: 12 Concerti a cinque, Op. 9, No. 10 in F Major: II. Adagio
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additional property: OTSVerifyInstructions
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12 Concerti a cinque, Op. 9, No. 10 in F Major: III. Allegro
type: MusicRecording
duration: PT3M39S
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explicit: false
by artist: Tomaso Albinoni
by artist: Ostrava Janáček Chamber Orchestra
by artist: Ivan Zenaty
by artist: František Xaver Thuri
in album: Albioni, Torelli, Pergolesi, Vivaldi: Italian Baroque Violin Concertos
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genre: classical
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:20:15Z
audio: 12 Concerti a cinque, Op. 9, No. 10 in F Major: III. Allegro
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Violin Concerto in B-Flat Major: I. Allegro
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duration: PT5M20S
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by artist: Ostrava Janáček Chamber Orchestra
by artist: Ivan Zenaty
by artist: František Xaver Thuri
in album: Albioni, Torelli, Pergolesi, Vivaldi: Italian Baroque Violin Concertos
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genre: classical
genre: choral
genre: requiem
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T03:15:04Z
audio: Violin Concerto in B-Flat Major: I. Allegro
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additional property: OTSVerifyInstructions
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Violin Concerto in B-Flat Major: II. Largo
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duration: PT5M19S
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explicit: false
by artist: Giovanni Battista Pergolesi
by artist: Ostrava Janáček Chamber Orchestra
by artist: Ivan Zenaty
by artist: František Xaver Thuri
in album: Albioni, Torelli, Pergolesi, Vivaldi: Italian Baroque Violin Concertos
  type: MusicAlbum
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genre: classical
genre: choral
genre: requiem
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T20:22:46Z
audio: Violin Concerto in B-Flat Major: II. Largo
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additional property: OTSVerifyInstructions
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Violin Concerto in B-Flat Major: III. Allegro
type: MusicRecording
duration: PT3M54S
duration ms: 234333
explicit: false
by artist: Giovanni Battista Pergolesi
by artist: Ostrava Janáček Chamber Orchestra
by artist: Ivan Zenaty
by artist: František Xaver Thuri
in album: Albioni, Torelli, Pergolesi, Vivaldi: Italian Baroque Violin Concertos
  type: MusicAlbum
  date published: 1993-01-01
genre: classical
genre: choral
genre: requiem
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T16:07:24Z
audio: Violin Concerto in B-Flat Major: III. Allegro
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T16:07:24+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160301516
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960429
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960429
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T16:07:24+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

La stravaganza, Op. 4, No. 2 in E Minor, RV 279 in E Minor: II. Largo
type: MusicRecording
duration: PT3M13S
duration ms: 193106
explicit: false
by artist: Antonio Vivaldi
by artist: Ostrava Janáček Chamber Orchestra
by artist: Ivan Zenaty
by artist: František Xaver Thuri
in album: Albioni, Torelli, Pergolesi, Vivaldi: Italian Baroque Violin Concertos
  type: MusicAlbum
  date published: 1993-01-01
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d83f8baa5f15ce145fb889b46fd1529c0b9679c3d8edf4b036618d518693e1. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160301526.
  date published: 2026-07-30T10:42:33Z
audio: La stravaganza, Op. 4, No. 2 in E Minor, RV 279 in E Minor: II. Largo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.9
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.154
  additional property: Energy
    type: PropertyValue
    value: 0.074
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.896
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.812
  additional property: Liveness
    type: PropertyValue
    value: 0.317
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.069
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.616
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: CZA160301526
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: 960247
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T10:42:33+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA160301526
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960247
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960247
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T10:42:33+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