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subject of: OpenTimestamps Proof of Existence
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track: Violin Concerto No. 1 in E Major "Spring", RV 269: I. Allegro (with Sonnet)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:55:08Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-06T06:56:49Z
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track: Violin Concerto No. 1 in E Major "Spring", RV 269: III. Allegro (with Sonnet)
track: Violin Concerto No. 2 in G Minor "Summer", RV 315: I. Allegro ma non molto (with Sonnet)
track: Violin Concerto No. 2 in G Minor "Summer", RV 315: II. Adagio (with Sonnet)
track: Violin Concerto No. 2 in G Minor "Summer", RV 315: III. Presto (with Sonnet)
track: Violin Concerto No. 3 in F Major "Autumn", RV 293: I. Allegro (with Sonnet)
track: Violin Concerto No. 3 in F Major "Autumn", RV 293: II. Adagio molto (with Sonnet)
track: Violin Concerto No. 3 in F Major "Autumn", RV 293: III. Allegro (with Sonnet)
track: Violin Concerto No. 4 in F Minor "Winter", RV 297: I. Allegro non molto (with Sonnet)
track: Violin Concerto No. 4 in F Minor "Winter", RV 297: II. Largo (with Sonnet)
track: Violin Concerto No. 4 in F Minor "Winter", RV 297: III. Allegro (with Sonnet)
track: Concerto for Violin and Cello in F Major "Il Proteo o sia il mondo al rovescio", RV 544: I. Allegro
track: Concerto for Violin and Cello in F Major "Il Proteo o sia il mondo al rovescio", RV 544: II. Largo
track: Concerto for Violin and Cello in F Major "Il Proteo o sia il mondo al rovescio", RV 544: III. Allegro
track: Violin Concerto in E-Flat Major "La Tempesta di mare", RV 253: I. Presto
track: Violin Concerto in E-Flat Major "La Tempesta di mare", RV 253: II. Largo
track: Violin Concerto in E-Flat Major "La Tempesta di mare", RV 253: III. Presto
track: Concerto for 4 Violins Op. 3, No. 10 in B Minor, RV 580: I. Allegro
track: Concerto for 4 Violins Op. 3, No. 10 in B Minor, RV 580: II. Largo - Larghetto - Adagio - Largo

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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T11:07:37Z
audio: Violin Concerto No. 1 in E Major "Spring", RV 269: III. Allegro (with Sonnet)
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Violin Concerto No. 2 in G Minor "Summer", RV 315: I. Allegro ma non molto (with Sonnet)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T21:51:49Z
audio: Violin Concerto No. 2 in G Minor "Summer", RV 315: I. Allegro ma non molto (with Sonnet)
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Violin Concerto No. 2 in G Minor "Summer", RV 315: II. Adagio (with Sonnet)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T21:09:47Z
audio: Violin Concerto No. 2 in G Minor "Summer", RV 315: II. Adagio (with Sonnet)
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Violin Concerto No. 2 in G Minor "Summer", RV 315: III. Presto (with Sonnet)
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by artist: Jordi Savall
by artist: Alfia Bakieva
by artist: Les Musiciennes du Concert des Nations
in album: Vivaldi: The Four Seasons
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genre: early-music
genre: baroque
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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: 2026-07-07T14:18:56Z
audio: Violin Concerto No. 2 in G Minor "Summer", RV 315: III. Presto (with Sonnet)
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Violin Concerto No. 3 in F Major "Autumn", RV 293: I. Allegro (with Sonnet)
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by artist: Jordi Savall
by artist: Alfia Bakieva
by artist: Les Musiciennes du Concert des Nations
in album: Vivaldi: The Four Seasons
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genre: classical
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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: 2026-07-30T07:28:30Z
audio: Violin Concerto No. 3 in F Major "Autumn", RV 293: I. Allegro (with Sonnet)
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Violin Concerto No. 3 in F Major "Autumn", RV 293: II. Adagio molto (with Sonnet)
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by artist: Antonio Vivaldi
by artist: Jordi Savall
by artist: Alfia Bakieva
by artist: Les Musiciennes du Concert des Nations
in album: Vivaldi: The Four Seasons
  type: MusicAlbum
  date published: 2024-05-10
genre: classical
genre: early-music
genre: baroque
genre: concerto
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additional property: OTSTimestamp
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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: 2026-07-30T06:39:12Z
audio: Violin Concerto No. 3 in F Major "Autumn", RV 293: II. Adagio molto (with Sonnet)
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Violin Concerto No. 3 in F Major "Autumn", RV 293: III. Allegro (with Sonnet)
type: MusicRecording
duration: PT3M15S
duration ms: 195933
explicit: false
by artist: Antonio Vivaldi
by artist: Jordi Savall
by artist: Alfia Bakieva
by artist: Les Musiciennes du Concert des Nations
in album: Vivaldi: The Four Seasons
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  date published: 2024-05-10
genre: classical
genre: early-music
genre: baroque
genre: concerto
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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: 2026-07-30T16:01:17Z
audio: Violin Concerto No. 3 in F Major "Autumn", RV 293: III. Allegro (with Sonnet)
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Violin Concerto No. 4 in F Minor "Winter", RV 297: I. Allegro non molto (with Sonnet)
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duration: PT3M36S
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by artist: Antonio Vivaldi
by artist: Jordi Savall
by artist: Alfia Bakieva
by artist: Les Musiciennes du Concert des Nations
in album: Vivaldi: The Four Seasons
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genre: classical
genre: early-music
genre: baroque
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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: 2026-07-07T14:41:13Z
audio: Violin Concerto No. 4 in F Minor "Winter", RV 297: I. Allegro non molto (with Sonnet)
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Violin Concerto No. 4 in F Minor "Winter", RV 297: II. Largo (with Sonnet)
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duration: PT1M54S
duration ms: 114453
explicit: false
by artist: Antonio Vivaldi
by artist: Jordi Savall
by artist: Alfia Bakieva
by artist: Les Musiciennes du Concert des Nations
in album: Vivaldi: The Four Seasons
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  date published: 2024-05-10
genre: classical
genre: early-music
genre: baroque
genre: concerto
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823d9a7eaa5a844ec9022ab84fc53b590932eaa7e8d632306a3d6f3103198b18. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CH4212400040.
  date published: 2026-07-08T03:20:19Z
audio: Violin Concerto No. 4 in F Minor "Winter", RV 297: II. Largo (with Sonnet)
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Violin Concerto No. 4 in F Minor "Winter", RV 297: III. Allegro (with Sonnet)
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by artist: Antonio Vivaldi
by artist: Jordi Savall
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by artist: Les Musiciennes du Concert des Nations
in album: Vivaldi: The Four Seasons
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genre: classical
genre: early-music
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additional property: OTSVerificationAPI
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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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Concerto for Violin and Cello in F Major "Il Proteo o sia il mondo al rovescio", RV 544: I. Allegro
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Concerto for Violin and Cello in F Major "Il Proteo o sia il mondo al rovescio", RV 544: II. Largo
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Concerto for Violin and Cello in F Major "Il Proteo o sia il mondo al rovescio", RV 544: III. Allegro
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Violin Concerto in E-Flat Major "La Tempesta di mare", RV 253: I. Presto
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Violin Concerto in E-Flat Major "La Tempesta di mare", RV 253: II. Largo
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Violin Concerto in E-Flat Major "La Tempesta di mare", RV 253: III. Presto
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Concerto for 4 Violins Op. 3, No. 10 in B Minor, RV 580: I. Allegro
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Concerto for 4 Violins Op. 3, No. 10 in B Minor, RV 580: II. Largo - Larghetto - Adagio - Largo
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