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album: Favourite Oboe Concertos
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track: Oboe Concerto in G Major, TWV 51:2: I. Andante
track: Concerto a cinque in D Minor for Solo Oboe and Strings, Op. 9 No. 2: II. Adagio
track: Oboe Concerto in C Major, RV 449: II. Largo
track: Oboe Concerto in G Minor, HWV 287: III. Sarabande. Largo
track: Concerto in B-Flat, Wq. 164: II. Largo E Mesto, Con Sordini
track: Concerto for Oboe d'amore in A Major, TWV 51:2: I. Siciliano
track: Oboe Concerto in F Major, BWV 1053: II. Siciliano
track: Concerto à 5 in C Major for Oboe and Strings, Op. 9 No. 5: II. Adagio
track: Sonata à Oboe, Violoncello e Basso in G Minor: III. Adagio
track: Oboe Concerto in F Major, RV 456 "Harmonia Mundi": I. Largo
track: Sonata in G Minor for Two Oboes, Bassoon and Basso Continuo: III. Largo
track: Concerto in C Minor: II. Adagio
track: Concerto for Oboe d'amore in A Major, TWV 51:2: III. Largo
track: Concerto for Oboe d'amore in A Major, BWV 1055: II. Larghetto
track: Sonata da camera in B-Flat Major: I. Adagio
track: Oboe Concerto in C Major, RV 450: II. Larghetto
track: Oboe Concerto in E-Flat Major, TWV 51:S1: II. Largo
track: Concerto-Pasticcio in D Major: I. Larghetto
track: Sonata à Oboe Solo e Basso Continuo in C Minor: II. Non tanto adagio

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Oboe Concerto in G Major, TWV 51:2: I. Andante
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duration: PT2M56S
duration ms: 176453
explicit: false
by artist: Georg Philipp Telemann
by artist: St. Christopher Chamber Orchestra
by artist: Donatas Katkus
by artist: Andrius Puskunigis
in album: Peaceful Oboe: The Baroque Collection
  type: MusicAlbum
  date published: 2023-06-28
popularity: 3
isrc code: NLY331603485
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additional property: OTSBitcoinBlockVerifyURL
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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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a35225ca90482f8662083806ae419efaed417ccd5b0cd687158aaec7ce4a2dc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331603485 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Oboe Concerto in G Major, TWV 51:2: I. Andante
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Concerto a cinque in D Minor for Solo Oboe and Strings, Op. 9 No. 2: II. Adagio
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duration: PT4M13S
duration ms: 253560
explicit: false
by artist: Tomaso Albinoni
by artist: Stefan Schilli
by artist: Stuttgart Chamber Orchestra
by artist: Nicol Matt
in album: Peaceful Oboe: The Baroque Collection
  type: MusicAlbum
  date published: 2023-06-28
popularity: 3
genre: classical
isrc code: NLN580565173
additional property: CopyrightID
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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 0x7de5456ebc1bac4e2cb03c4284cc8ab3b49b9659d140dc0c4f10ac548a285c35. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NLN580565173 — a six-check JSON result.
  date published: 2026-07-31T02:19:15Z
audio: Concerto a cinque in D Minor for Solo Oboe and Strings, Op. 9 No. 2: II. Adagio
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Oboe Concerto in C Major, RV 449: II. Largo
type: MusicRecording
duration: PT2M52S
duration ms: 172973
explicit: false
by artist: Antonio Vivaldi
by artist: Pier-Luigi Fabretti
by artist: L'Arte dell' Arco
by artist: Federico Guglielmo
in album: Peaceful Oboe: The Baroque Collection
  type: MusicAlbum
  date published: 2023-06-28
popularity: 3
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLY331401920
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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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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  date published: 2026-07-31T17:29:52Z
audio: Oboe Concerto in C Major, RV 449: II. Largo
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Oboe Concerto in G Minor, HWV 287: III. Sarabande. Largo
type: MusicRecording
duration: PT2M11S
duration ms: 131333
explicit: false
by artist: George Frideric Handel
by artist: Klaipėda Chamber Orchestra
by artist: Andrius Puskunigis
by artist: Vincent Bernhardt
by artist: Mindaugas Bačkus
in album: Peaceful Oboe: The Baroque Collection
  type: MusicAlbum
  date published: 2023-06-28
popularity: 2
genre: classical
genre: opera
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
genre: choral
isrc code: NLY332103398
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f80c617766a6876265f7707e94554f2ac8e9354882273c73bd8e98957a793b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY332103398 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Oboe Concerto in G Minor, HWV 287: III. Sarabande. Largo
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Concerto in B-Flat, Wq. 164: II. Largo E Mesto, Con Sordini
type: MusicRecording
duration: PT7M34S
duration ms: 454906
explicit: false
by artist: Carl Philipp Emanuel Bach
by artist: Musica Poetica
in album: Peaceful Oboe: The Baroque Collection
  type: MusicAlbum
  date published: 2023-06-28
popularity: 2
isrc code: NLY331208351
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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 0xe08d8a765ed4618d2f3b7f1a939f655e2f8d5f495a499e2baa3f7cb050e098d9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331208351 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Concerto in B-Flat, Wq. 164: II. Largo E Mesto, Con Sordini
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  additional property: Valence (Positivity)
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Concerto for Oboe d'amore in A Major, TWV 51:2: I. Siciliano
type: MusicRecording
duration: PT3M0S
duration ms: 180240
explicit: false
by artist: Georg Philipp Telemann
by artist: St. Christopher Chamber Orchestra
by artist: Donatas Katkus
by artist: Andrius Puskunigis
in album: Peaceful Oboe: The Baroque Collection
  type: MusicAlbum
  date published: 2023-06-28
popularity: 2
isrc code: NLY331603493
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e821b30d54d4612fbb2a7cc08e2fbe47e084acca90b1debdf34a38345d7226. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/NLY331603493 — a six-check JSON result.
  date published: 2026-07-31T05:48:18Z
audio: Concerto for Oboe d'amore in A Major, TWV 51:2: I. Siciliano
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Oboe Concerto in F Major, BWV 1053: II. Siciliano
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duration: PT4M53S
duration ms: 293920
explicit: false
by artist: Johann Sebastian Bach
by artist: St. Christopher Chamber Orchestra
by artist: Donatas Katkus
by artist: Andrius Puskunigis
in album: Peaceful Oboe: The Baroque Collection
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  date published: 2023-06-28
popularity: 2
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
isrc code: NLY331404289
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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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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Concerto à 5 in C Major for Oboe and Strings, Op. 9 No. 5: II. Adagio
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  date published: 2026-07-31T15:27:29Z
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Sonata à Oboe, Violoncello e Basso in G Minor: III. Adagio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
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Oboe Concerto in F Major, RV 456 "Harmonia Mundi": I. Largo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Sonata in G Minor for Two Oboes, Bassoon and Basso Continuo: III. Largo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Concerto in C Minor: II. Adagio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T12:24:41Z
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Concerto for Oboe d'amore in A Major, TWV 51:2: III. Largo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Concerto for Oboe d'amore in A Major, BWV 1055: II. Larghetto
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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: 2026-07-31T15:20:15Z
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Sonata da camera in B-Flat Major: I. Adagio
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by artist: Berlin Friday Academy
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popularity: 2
genre: classical-era
genre: galante-era
genre: baroque
genre: german-baroque
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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: 2026-07-08T03:20:19Z
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Oboe Concerto in C Major, RV 450: II. Larghetto
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duration: PT3M8S
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by artist: Pier-Luigi Fabretti
by artist: L'Arte dell' Arco
by artist: Federico Guglielmo
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popularity: 1
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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:20:15Z
audio: Oboe Concerto in C Major, RV 450: II. Larghetto
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Oboe Concerto in E-Flat Major, TWV 51:S1: II. Largo
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by artist: St. Christopher Chamber Orchestra
by artist: Donatas Katkus
by artist: Andrius Puskunigis
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popularity: 1
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Concerto-Pasticcio in D Major: I. Larghetto
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duration: PT2M33S
duration ms: 153848
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by artist: George Frideric Handel
by artist: Klaipėda Chamber Orchestra
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by artist: Vincent Bernhardt
by artist: Mindaugas Bačkus
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popularity: 1
genre: classical
genre: opera
genre: early-music
genre: baroque
genre: english-baroque
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genre: choral
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T13:50:38Z
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Sonata à Oboe Solo e Basso Continuo in C Minor: II. Non tanto adagio
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by artist: Ensemble Cordia
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popularity: 1
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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: 2026-07-31T12:24:41Z
audio: Sonata à Oboe Solo e Basso Continuo in C Minor: II. Non tanto adagio
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Favourite Oboe Concertos
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date published: 2023-04-21

Vivaldi: Violin Concertos, Op. 11 & 12
type: MusicAlbum
date published: 2016-11-04
track: Violin Concerto No. 5 in C Minor, RV 202: I. Allegro non molto
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T15:41:10Z
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track: Violin Concerto No. 4 in G Major, RV 308: I. Allegro
track: Violin Concerto No. 4 in G Major, RV 308: II. Largo cantabile
track: Violin Concerto No. 4 in G Major, RV 308: III. Allegro
track: Violin Concerto No. 2 in E Minor, RV 277 "il favorito": I. Allegro
track: Violin Concerto No. 2 in E Minor, RV 277 "il favorito": II. Andante
track: Violin Concerto No. 2 in E Minor, RV 277 "il favorito": III. Allegro
track: Violin Concerto No. 3 in A Major, RV 336: I. Allegro
track: Violin Concerto No. 3 in A Major, RV 336: II. Aria andante
track: Violin Concerto No. 3 in A Major, RV 336: III. Allegro
track: Violin Concerto No. 1 in D Major, RV 207: I. Allegro
track: Violin Concerto No. 1 in D Major, RV 207: II. Largo
track: Violin Concerto No. 1 in D Major, RV 207: III. Allegro
track: Oboe Concerto No. 6 in G Minor, RV 460: I. Allegro non tanto
track: Oboe Concerto No. 6 in G Minor, RV 460: II. Largo
track: Oboe Concerto No. 6 in G Minor, RV 460: III. Allegro non molto
track: Violin Concerto No. 5 in B-Flat Major, RV 379: I. Allegro
track: Violin Concerto No. 5 in B-Flat Major, RV 379: II. Largo
track: Violin Concerto No. 5 in B-Flat Major, RV 379: III. Allegro
track: Violin Concerto No. 1 in G Minor, RV 317: I. Allegro
track: Violin Concerto No. 1 in G Minor, RV 317: II. Largo
track: Violin Concerto No. 1 in G Minor, RV 317: III. Allegro
track: Violin Concerto No. 4 in C Major, RV 173: I. Largo spiccato, allegro
track: Violin Concerto No. 4 in C Major, RV 173: II. Largo
track: Violin Concerto No. 4 in C Major, RV 173: III. Allegro
track: Violin Concerto No. 2 in D Minor, RV 244: I. Allegro
track: Violin Concerto No. 2 in D Minor, RV 244: II. Larghetto
track: Violin Concerto No. 2 in D Minor, RV 244: III. Allegro
track: Violin Concerto No. 6 in B-Flat Major, RV 361: I. Allegro
track: Violin Concerto No. 6 in B-Flat Major, RV 361: II. Largo
track: Violin Concerto No. 6 in B-Flat Major, RV 361: III. Allegro
track: Concerto for Strings No. 3 in D Major, RV 124: I. Allegro
track: Concerto for Strings No. 3 in D Major, RV 124: II. Grave
track: Concerto for Strings No. 3 in D Major, RV 124: III. Allegro

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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: 2026-07-30T07:48:45Z
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Violin Concerto No. 2 in E Minor, RV 277 "il favorito": II. Andante
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duration ms: 260573
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by artist: L'Arte dell' Arco
by artist: Federico Guglielmo
by artist: Pier-Luigi Fabretti
in album: Vivaldi: Violin Concertos, Op. 11 & 12
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  date published: 2016-11-04
popularity: 3
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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T16:54:37Z
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Violin Concerto No. 2 in E Minor, RV 277 "il favorito": III. Allegro
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duration: PT4M24S
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by artist: Antonio Vivaldi
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by artist: Federico Guglielmo
by artist: Pier-Luigi Fabretti
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popularity: 3
genre: classical
genre: early-music
genre: baroque
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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: 2026-07-08T03:20:19Z
audio: Violin Concerto No. 2 in E Minor, RV 277 "il favorito": III. Allegro
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Violin Concerto No. 3 in A Major, RV 336: I. Allegro
type: MusicRecording
duration: PT4M6S
duration ms: 246800
explicit: false
by artist: Antonio Vivaldi
by artist: L'Arte dell' Arco
by artist: Federico Guglielmo
by artist: Pier-Luigi Fabretti
in album: Vivaldi: Violin Concertos, Op. 11 & 12
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  date published: 2016-11-04
popularity: 8
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLY331500855
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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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  date published: 2026-07-02T03:55:08Z
audio: Violin Concerto No. 3 in A Major, RV 336: I. Allegro
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Violin Concerto No. 3 in A Major, RV 336: II. Aria andante
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duration: PT2M34S
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by artist: Antonio Vivaldi
by artist: L'Arte dell' Arco
by artist: Federico Guglielmo
by artist: Pier-Luigi Fabretti
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popularity: 3
genre: classical
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: 2026-07-30T09:57:33Z
audio: Violin Concerto No. 3 in A Major, RV 336: II. Aria andante
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Violin Concerto No. 3 in A Major, RV 336: III. Allegro
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by artist: Federico Guglielmo
by artist: Pier-Luigi Fabretti
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popularity: 2
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: 2026-07-08T03:20:19Z
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Violin Concerto No. 1 in D Major, RV 207: I. Allegro
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by artist: Pier-Luigi Fabretti
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popularity: 3
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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T19:35:34Z
audio: Violin Concerto No. 1 in D Major, RV 207: I. Allegro
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Violin Concerto No. 1 in D Major, RV 207: II. Largo
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Violin Concerto No. 1 in D Major, RV 207: III. Allegro
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Oboe Concerto No. 6 in G Minor, RV 460: I. Allegro non tanto
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  date published: 2026-07-08T03:20:19Z
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Oboe Concerto No. 6 in G Minor, RV 460: II. Largo
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Oboe Concerto No. 6 in G Minor, RV 460: III. Allegro non molto
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Violin Concerto No. 5 in B-Flat Major, RV 379: I. Allegro
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Violin Concerto No. 5 in B-Flat Major, RV 379: II. Largo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Violin Concerto No. 5 in B-Flat Major, RV 379: III. Allegro
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by artist: Pier-Luigi Fabretti
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T15:42:38Z
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Violin Concerto No. 1 in G Minor, RV 317: I. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Violin Concerto No. 1 in G Minor, RV 317: II. Largo
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by artist: Pier-Luigi Fabretti
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T14:28:24Z
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Violin Concerto No. 1 in G Minor, RV 317: III. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T11:13:28Z
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Violin Concerto No. 4 in C Major, RV 173: I. Largo spiccato, allegro
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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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Violin Concerto No. 4 in C Major, RV 173: II. Largo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Violin Concerto No. 4 in C Major, RV 173: III. Allegro
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Violin Concerto No. 2 in D Minor, RV 244: I. Allegro
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  date published: 2026-07-08T03:20:19Z
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Violin Concerto No. 2 in D Minor, RV 244: II. Larghetto
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  date published: 2026-07-30T09:37:10Z
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Violin Concerto No. 2 in D Minor, RV 244: III. Allegro
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  date published: 2026-07-30T06:57:05Z
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Violin Concerto No. 6 in B-Flat Major, RV 361: I. Allegro
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Violin Concerto No. 6 in B-Flat Major, RV 361: II. Largo
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Violin Concerto No. 6 in B-Flat Major, RV 361: III. Allegro
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Concerto for Strings No. 3 in D Major, RV 124: I. Allegro
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Concerto for Strings No. 3 in D Major, RV 124: II. Grave
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  date published: 2026-07-08T03:20:19Z
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Concerto for Strings No. 3 in D Major, RV 124: III. Allegro
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  date published: 2026-07-08T03:20:19Z
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track: Violin Concerto in F Major, RV 294a: I. Allegro
track: Violin Concerto in F Major, RV 294a: II. Grave
track: Violin Concerto in F Major, RV 294a: III. Allegro
track: Violin Concerto in A Minor, RV 354: I. Allegro
track: Violin Concerto in A Minor, RV 354: II. Adagio
track: Violin Concerto in A Minor, RV 354: III. Allegro
track: Violin Concerto in C Major, RV 188: I. Allegro
track: Violin Concerto in C Major, RV 188: II. Largo
track: Violin Concerto in C Major, RV 188: III. Allegro
track: Violin Concerto in G Minor, RV 326: I. Allegro
track: Violin Concerto in G Minor, RV 326: II. Grave
track: Violin Concerto in G Minor, RV 326: III. Presto
track: Violin Concerto in B-Fflat Major, RV 374: I. Allegro
track: Violin Concerto in B-Fflat Major, RV 374: II. Largo
track: Violin Concerto in B-Fflat Major, RV 374: III. Allegro
track: Violin Concerto in D Major, RV 214: I. Allegro
track: Violin Concerto in D Major, RV 214: II. Grave assai
track: Violin Concerto in D Major, RV 214: III. Allegro
track: Violin Concerto in G Major, RV 299: I. Allegro
track: Violin Concerto in G Major, RV 299: II. Largo cantabile
track: Violin Concerto in G Major, RV 299: III. Allegro
track: Violin Concerto in B-Flat Major, RV 373: I. Allegro
track: Violin Concerto in B-Flat Major, RV 373: II. Grave spiccato
track: Violin Concerto in B-Flat Major, RV 373: III. Alla breve
track: Violin Concerto in F Major, RV 285a: I. Allegro
track: Violin Concerto in F Major, RV 285a: II. Grave
track: Violin Concerto in F Major, RV 285a: III. Allegro
track: Oboe Concerto in B-Flat Major, RV 465: I. Allegro

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OTSBitcoinBlock
type: PropertyValue
value: 960207

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960207

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331501048

OTSTimestamp
type: PropertyValue
value: 2026-07-30T04:47:22Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e5fea86f6df84583075108ef08c5b3c6e5e2584ef7bb82f4ee333259af095d. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/NLY331501048 — a six-check JSON result.
date published: 2026-07-30T04:47:22Z

Violin Concerto in D Major, RV 208a: III. Allegro
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 165.227
additional property: Musical Key
  type: PropertyValue
  value: 8
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.419
additional property: Energy
  type: PropertyValue
  value: 0.338
additional property: Speechiness
  type: PropertyValue
  value: 0.047
additional property: Acousticness
  type: PropertyValue
  value: 0.855
additional property: Instrumentalness
  type: PropertyValue
  value: 0.787
additional property: Liveness
  type: PropertyValue
  value: 0.094
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.603
additional property: Loudness (dB)
  type: PropertyValue
  value: -17.938
additional property: Key Name
  type: PropertyValue
  value: Ab
additional property: Mode Name
  type: PropertyValue
  value: Major

Violin Concerto in F Major, RV 294a: I. Allegro
type: MusicRecording
duration: PT3M3S
duration ms: 183156
explicit: false
by artist: Antonio Vivaldi
by artist: L'Arte dell' Arco
by artist: Pier-Luigi Fabretti
by artist: Federico Guglielmo
in album: Vivaldi: 12 Concertos, Op. 7
  type: MusicAlbum
  date published: 2015-09-04
popularity: 16
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLY331501049
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T09:45:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7be58dd136192b12bbe7d96b7b00c3d8d17408ec4d037ced7f75101be41bc042
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331501049
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be58dd136192b12bbe7d96b7b00c3d8d17408ec4d037ced7f75101be41bc042. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NLY331501049 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
audio: Violin Concerto in F Major, RV 294a: I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 146.157
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.514
  additional property: Energy
    type: PropertyValue
    value: 0.189
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.859
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.531
  additional property: Liveness
    type: PropertyValue
    value: 0.12
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.302
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.392
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Violin Concerto in F Major, RV 294a: II. Grave
type: MusicRecording
duration: PT1M32S
duration ms: 92192
explicit: false
by artist: Antonio Vivaldi
by artist: L'Arte dell' Arco
by artist: Pier-Luigi Fabretti
by artist: Federico Guglielmo
in album: Vivaldi: 12 Concertos, Op. 7
  type: MusicAlbum
  date published: 2015-09-04
popularity: 7
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLY331501050
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T15:40:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x712cc36822985ffe76f8a2ce369c0fe9a892ded184782218b5707e16b387dbbb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960273
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960273
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331501050
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T15:42:38Z
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712cc36822985ffe76f8a2ce369c0fe9a892ded184782218b5707e16b387dbbb. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/NLY331501050 — a six-check JSON result.
  date published: 2026-07-30T15:42:38Z
audio: Violin Concerto in F Major, RV 294a: II. Grave
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.255
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.198
  additional property: Energy
    type: PropertyValue
    value: 0.075
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.773
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.104
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.116
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.958
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Violin Concerto in F Major, RV 294a: III. Allegro
type: MusicRecording
duration: PT3M7S
duration ms: 187226
explicit: false
by artist: Antonio Vivaldi
by artist: L'Arte dell' Arco
by artist: Pier-Luigi Fabretti
by artist: Federico Guglielmo
in album: Vivaldi: 12 Concertos, Op. 7
  type: MusicAlbum
  date published: 2015-09-04
popularity: 7
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLY331501051
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T15:31:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x532a8fb4becd912e57f23bd6844b1fc942d20d29348ae6a7e2f49b9e544e4ffa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960273
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960273
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331501051
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T15:42:38Z
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532a8fb4becd912e57f23bd6844b1fc942d20d29348ae6a7e2f49b9e544e4ffa. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/NLY331501051 — a six-check JSON result.
  date published: 2026-07-30T15:42:38Z
audio: Violin Concerto in F Major, RV 294a: III. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.255
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.545
  additional property: Energy
    type: PropertyValue
    value: 0.293
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.833
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.841
  additional property: Liveness
    type: PropertyValue
    value: 0.261
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.815
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.658
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Violin Concerto in A Minor, RV 354: I. Allegro
type: MusicRecording
duration: PT2M53S
duration ms: 173407
explicit: false
by artist: Antonio Vivaldi
by artist: L'Arte dell' Arco
by artist: Pier-Luigi Fabretti
by artist: Federico Guglielmo
in album: Vivaldi: 12 Concertos, Op. 7
  type: MusicAlbum
  date published: 2015-09-04
popularity: 8
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLY331501052
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T21:35:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x62232ae19dc2a55cebdd9a98a8d7cb88722f5b2708af204a002ab4a0a5dcfdc6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960150
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960150
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331501052
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T21:51:49Z
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62232ae19dc2a55cebdd9a98a8d7cb88722f5b2708af204a002ab4a0a5dcfdc6. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/NLY331501052 — a six-check JSON result.
  date published: 2026-07-29T21:51:49Z
audio: Violin Concerto in A Minor, RV 354: I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.07
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.546
  additional property: Energy
    type: PropertyValue
    value: 0.3
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.813
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.306
  additional property: Liveness
    type: PropertyValue
    value: 0.066
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.377
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.23
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Violin Concerto in A Minor, RV 354: II. Adagio
type: MusicRecording
duration: PT2M46S
duration ms: 166968
explicit: false
by artist: Antonio Vivaldi
by artist: L'Arte dell' Arco
by artist: Pier-Luigi Fabretti
by artist: Federico Guglielmo
in album: Vivaldi: 12 Concertos, Op. 7
  type: MusicAlbum
  date published: 2015-09-04
popularity: 8
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLY331501053
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T04:26:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7b526c7b00f65d8dfd70eaf207e314b2a4d09586eda50c66f683b965d6a2f2a9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960207
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960207
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331501053
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T04:47:22Z
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b526c7b00f65d8dfd70eaf207e314b2a4d09586eda50c66f683b965d6a2f2a9. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/NLY331501053 — a six-check JSON result.
  date published: 2026-07-30T04:47:22Z
audio: Violin Concerto in A Minor, RV 354: II. Adagio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.503
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.133
  additional property: Energy
    type: PropertyValue
    value: 0.084
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.736
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.063
  additional property: Liveness
    type: PropertyValue
    value: 0.23
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.11
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.469
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Violin Concerto in A Minor, RV 354: III. Allegro
type: MusicRecording
duration: PT3M3S
duration ms: 183184
explicit: false
by artist: Antonio Vivaldi
by artist: L'Arte dell' Arco
by artist: Pier-Luigi Fabretti
by artist: Federico Guglielmo
in album: Vivaldi: 12 Concertos, Op. 7
  type: MusicAlbum
  date published: 2015-09-04
popularity: 8
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLY331501054
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:17:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x39c872e0289ff827d20701f546e21045c9492021bae27e5b53b6b249756317ff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331501054
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c872e0289ff827d20701f546e21045c9492021bae27e5b53b6b249756317ff. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331501054 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Violin Concerto in A Minor, RV 354: III. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 152.662
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.516
  additional property: Energy
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Violin Concerto in C Major, RV 188: I. Allegro
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duration ms: 193279
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by artist: L'Arte dell' Arco
by artist: Pier-Luigi Fabretti
by artist: Federico Guglielmo
in album: Vivaldi: 12 Concertos, Op. 7
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  date published: 2015-09-04
popularity: 8
genre: classical
genre: early-music
genre: baroque
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T19:35:34Z
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Violin Concerto in C Major, RV 188: II. Largo
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duration: PT2M6S
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by artist: L'Arte dell' Arco
by artist: Pier-Luigi Fabretti
by artist: Federico Guglielmo
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popularity: 8
genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T19:35:34Z
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Violin Concerto in C Major, RV 188: III. Allegro
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duration: PT2M8S
duration ms: 128807
explicit: false
by artist: Antonio Vivaldi
by artist: L'Arte dell' Arco
by artist: Pier-Luigi Fabretti
by artist: Federico Guglielmo
in album: Vivaldi: 12 Concertos, Op. 7
  type: MusicAlbum
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popularity: 8
genre: classical
genre: early-music
genre: baroque
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Violin Concerto in G Minor, RV 326: I. Allegro
type: MusicRecording
duration: PT2M48S
duration ms: 168043
explicit: false
by artist: Antonio Vivaldi
by artist: L'Arte dell' Arco
by artist: Pier-Luigi Fabretti
by artist: Federico Guglielmo
in album: Vivaldi: 12 Concertos, Op. 7
  type: MusicAlbum
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popularity: 8
genre: classical
genre: early-music
genre: baroque
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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: 2026-07-29T13:21:01Z
audio: Violin Concerto in G Minor, RV 326: I. Allegro
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Violin Concerto in G Minor, RV 326: II. Grave
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duration: PT2M0S
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explicit: false
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by artist: Pier-Luigi Fabretti
by artist: Federico Guglielmo
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popularity: 8
genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T21:09:47Z
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Violin Concerto in G Minor, RV 326: III. Presto
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popularity: 8
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T19:35:34Z
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Violin Concerto in B-Fflat Major, RV 374: I. Allegro
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popularity: 8
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41e8e73c0931d9a52b1b47f684a3af0c15e3f20ea90ed1123ad5fed3f25be77. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/NLY331501061 — a six-check JSON result.
  date published: 2026-07-29T23:39:29Z
audio: Violin Concerto in B-Fflat Major, RV 374: I. Allegro
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  additional property: Valence (Positivity)
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Violin Concerto in B-Fflat Major, RV 374: II. Largo
type: MusicRecording
duration: PT2M0S
duration ms: 120139
explicit: false
by artist: Antonio Vivaldi
by artist: L'Arte dell' Arco
by artist: Pier-Luigi Fabretti
by artist: Federico Guglielmo
in album: Vivaldi: 12 Concertos, Op. 7
  type: MusicAlbum
  date published: 2015-09-04
popularity: 8
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLY331501062
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331501062
additional property: OTSTimestamp
  type: PropertyValue
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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 0x8195befa73297fec3cc7c961ff57a888d5c78918f147d4230dbfb84f08e35309. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/NLY331501062 — a six-check JSON result.
  date published: 2026-07-29T23:20:38Z
audio: Violin Concerto in B-Fflat Major, RV 374: II. Largo
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Violin Concerto in B-Fflat Major, RV 374: III. Allegro
type: MusicRecording
duration: PT2M34S
duration ms: 154634
explicit: false
by artist: Antonio Vivaldi
by artist: L'Arte dell' Arco
by artist: Pier-Luigi Fabretti
by artist: Federico Guglielmo
in album: Vivaldi: 12 Concertos, Op. 7
  type: MusicAlbum
  date published: 2015-09-04
popularity: 7
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLY331501063
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331501063
additional property: OTSTimestamp
  type: PropertyValue
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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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf9b464011a8186c59ff2e884a545daf786277e7c9d5835a58f2e164bd9596c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331501063 — a six-check JSON result.
  date published: 2026-07-30T10:42:33Z
audio: Violin Concerto in B-Fflat Major, RV 374: III. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Violin Concerto in D Major, RV 214: I. Allegro
type: MusicRecording
duration: PT2M33S
duration ms: 153388
explicit: false
by artist: Antonio Vivaldi
by artist: L'Arte dell' Arco
by artist: Pier-Luigi Fabretti
by artist: Federico Guglielmo
in album: Vivaldi: 12 Concertos, Op. 7
  type: MusicAlbum
  date published: 2015-09-04
popularity: 7
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLY331501064
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-06T20:38:32+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x0accfbf3c3e6ec95266957c9a7e0438add2bf7b2aa412eccdd391fa2ef6793c0
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331501064
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0accfbf3c3e6ec95266957c9a7e0438add2bf7b2aa412eccdd391fa2ef6793c0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331501064 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Violin Concerto in D Major, RV 214: I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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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: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
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Violin Concerto in D Major, RV 214: II. Grave assai
type: MusicRecording
duration: PT2M3S
duration ms: 123848
explicit: false
by artist: Antonio Vivaldi
by artist: L'Arte dell' Arco
by artist: Pier-Luigi Fabretti
by artist: Federico Guglielmo
in album: Vivaldi: 12 Concertos, Op. 7
  type: MusicAlbum
  date published: 2015-09-04
popularity: 7
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLY331501065
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960183
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331501065
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T01:10:20Z
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534414ddab630f18cbd135b9e9a113d37c9171c329894aef3777bf119d35d6b0. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/NLY331501065 — a six-check JSON result.
  date published: 2026-07-30T01:10:20Z
audio: Violin Concerto in D Major, RV 214: II. Grave assai
  type: AudioObject
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  additional property: Mode (Major/Minor)
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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: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
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Violin Concerto in D Major, RV 214: III. Allegro
type: MusicRecording
duration: PT2M17S
duration ms: 137985
explicit: false
by artist: Antonio Vivaldi
by artist: L'Arte dell' Arco
by artist: Pier-Luigi Fabretti
by artist: Federico Guglielmo
in album: Vivaldi: 12 Concertos, Op. 7
  type: MusicAlbum
  date published: 2015-09-04
popularity: 7
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLY331501066
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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  value: 2026-07-30T00:36:43+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960181
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331501066
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T00:53:20Z
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2caa789841edbe43ce863e1a0a06feb21c9d6c4f63f6c00d38f39ccdfecf9296. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/NLY331501066 — a six-check JSON result.
  date published: 2026-07-30T00:53:20Z
audio: Violin Concerto in D Major, RV 214: III. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
    type: PropertyValue
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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: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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Violin Concerto in G Major, RV 299: I. Allegro
type: MusicRecording
duration: PT2M1S
duration ms: 121703
explicit: false
by artist: Antonio Vivaldi
by artist: L'Arte dell' Arco
by artist: Pier-Luigi Fabretti
by artist: Federico Guglielmo
in album: Vivaldi: 12 Concertos, Op. 7
  type: MusicAlbum
  date published: 2015-09-04
popularity: 9
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLY331501067
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T21:44:20+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331501067
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a169e5d831ecabbcd6932d373d4aad02f8208dfe6156b988d49d58069cddee0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331501067 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Violin Concerto in G Major, RV 299: I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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Violin Concerto in G Major, RV 299: II. Largo cantabile
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by artist: L'Arte dell' Arco
by artist: Pier-Luigi Fabretti
by artist: Federico Guglielmo
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  date published: 2015-09-04
popularity: 8
genre: classical
genre: early-music
genre: baroque
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T03:35:13Z
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Violin Concerto in G Major, RV 299: III. Allegro
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duration: PT1M57S
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by artist: L'Arte dell' Arco
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by artist: Federico Guglielmo
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popularity: 8
genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T07:28:30Z
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Violin Concerto in B-Flat Major, RV 373: I. Allegro
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by artist: Antonio Vivaldi
by artist: L'Arte dell' Arco
by artist: Pier-Luigi Fabretti
by artist: Federico Guglielmo
in album: Vivaldi: 12 Concertos, Op. 7
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popularity: 7
genre: classical
genre: early-music
genre: baroque
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Violin Concerto in B-Flat Major, RV 373: II. Grave spiccato
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duration: PT2M34S
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by artist: Antonio Vivaldi
by artist: L'Arte dell' Arco
by artist: Pier-Luigi Fabretti
by artist: Federico Guglielmo
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popularity: 7
genre: classical
genre: early-music
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T17:23:26Z
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Violin Concerto in B-Flat Major, RV 373: III. Alla breve
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popularity: 7
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T05:15:54Z
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Violin Concerto in F Major, RV 285a: I. Allegro
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T23:39:29Z
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Violin Concerto in F Major, RV 285a: II. Grave
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popularity: 7
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Violin Concerto in F Major, RV 285a: III. Allegro
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Oboe Concerto in B-Flat Major, RV 465: I. Allegro
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Cello Concertos
type: MusicAlbum
date published: 2018-11-30

Baroque Violin Concertos
type: MusicAlbum
date published: 2023-09-15