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subject of: OpenTimestamps Proof of Existence
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track: Fantasia on a Theme by Thomas Tallis
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    date published: 2026-06-13T12:47:07Z
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track: Five Variants of "Dives and Lazarus"
track: Concerto in D Minor for 2 Oboes, Strings & Continuo, RV 535 - Ed. Hogwood: 2. Largo
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    date published: 2026-06-13T17:25:41Z
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track: Bassoon Concerto in A Minor, RV 498 - Ed. Christopher Hogwood: 1. Allegro (ma molto moderato)
track: Flute Concerto in C Minor, RV 441: 2. Largo
track: Concerto in D Minor for 2 Oboes, Strings & Continuo, RV 535 - Ed. Hogwood: 3. Allegro molto
track: Concerto grosso in C, HWV 318 "Alexander's Feast": 1. Allegro
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track: Concerto in F Major for 2 Oboes, Bassoon, 2 Horns & Violin, RV 574: 2. Grave
track: Concerto in F Major for 2 Oboes, 2 Horns & Violin, RV 569: 2. Grave
track: Bassoon Concerto in A Minor, RV 498 - Ed. Christopher Hogwood: 3. Allegro
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track: Concerto in D Minor for 2 Oboes, Strings & Continuo, RV 535 - Ed. Hogwood: 1. Largo - Allegro
track: Concerto grosso in C, HWV 318 "Alexander's Feast": 3. Allegro - Adagio
track: Concerto grosso in C, HWV 318 "Alexander's Feast": 4. Andante non presto

Five Variants of "Dives and Lazarus"
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  date published: 2026-06-13T12:47:07Z
audio: Five Variants of "Dives and Lazarus"
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Bassoon Concerto in A Minor, RV 498 - Ed. Christopher Hogwood: 1. Allegro (ma molto moderato)
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  date published: 2026-07-02T03:55:08Z
audio: Bassoon Concerto in A Minor, RV 498 - Ed. Christopher Hogwood: 1. Allegro (ma molto moderato)
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Flute Concerto in C Minor, RV 441: 2. Largo
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Concerto in D Minor for 2 Oboes, Strings & Continuo, RV 535 - Ed. Hogwood: 3. Allegro molto
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T03:53:27Z
audio: Concerto in D Minor for 2 Oboes, Strings & Continuo, RV 535 - Ed. Hogwood: 3. Allegro molto
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Concerto grosso in C, HWV 318 "Alexander's Feast": 1. Allegro
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duration: PT3M31S
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by artist: George Frideric Handel
by artist: Kenneth Sillito
by artist: Neil Black
by artist: John Tunnell
by artist: Kenneth Heath
by artist: James Brown
by artist: Leslie Pearson
by artist: John Constable
by artist: English Chamber Orchestra
by artist: Raymond Leppard
in album: Handel: Oboe Concertos Nos.1-3/Concerto Grosso "Alexander's Feast" etc.
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  date published: 1971-01-01
popularity: 2
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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  date published: 2026-07-08T03:53:27Z
audio: Concerto grosso in C, HWV 318 "Alexander's Feast": 1. Allegro
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Bassoon Concerto in A Minor, RV 498 - Ed.Christopher Hogwood: 2. Larghetto
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duration: PT3M52S
duration ms: 232333
explicit: false
by artist: Antonio Vivaldi
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by artist: Christopher Hogwood
by artist: Colin Tilney
by artist: Kenneth Heath
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Vivaldi: The Four Seasons etc
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popularity: 5
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T19:35:34Z
audio: Bassoon Concerto in A Minor, RV 498 - Ed.Christopher Hogwood: 2. Larghetto
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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

Concerto in F Major for 2 Oboes, Bassoon, 2 Horns & Violin, RV 574: 2. Grave
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duration: PT3M18S
duration ms: 198253
explicit: false
by artist: Antonio Vivaldi
by artist: Neil Black
by artist: Celia Nicklin
by artist: Martin Gatt
by artist: Timothy Brown
by artist: Robin Davis
by artist: Iona Brown
by artist: Christopher Hogwood
by artist: Colin Tilney
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
by artist: Kenneth Heath
in album: Vivaldi Adagios
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popularity: 4
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:20:15Z
audio: Concerto in F Major for 2 Oboes, Bassoon, 2 Horns & Violin, RV 574: 2. Grave
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additional property: OTSVerifyInstructions
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Concerto in F Major for 2 Oboes, 2 Horns & Violin, RV 569: 2. Grave
type: MusicRecording
duration: PT3M21S
duration ms: 201200
explicit: false
by artist: Antonio Vivaldi
by artist: Neil Black
by artist: Celia Nicklin
by artist: Martin Gatt
by artist: Timothy Brown
by artist: Robin Davis
by artist: Iona Brown
by artist: Christopher Hogwood
by artist: Colin Tilney
by artist: Kenneth Heath
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Vivaldi Adagios
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popularity: 4
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T14:44:50Z
audio: Concerto in F Major for 2 Oboes, 2 Horns & Violin, RV 569: 2. Grave
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additional property: OTSVerifyInstructions
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Bassoon Concerto in A Minor, RV 498 - Ed. Christopher Hogwood: 3. Allegro
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duration: PT3M9S
duration ms: 189000
explicit: false
by artist: Antonio Vivaldi
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by artist: Christopher Hogwood
by artist: Colin Tilney
by artist: Kenneth Heath
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Vivaldi: The Four Seasons etc
  type: MusicAlbum
  date published: 2000-01-01
popularity: 4
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T08:30:10Z
audio: Bassoon Concerto in A Minor, RV 498 - Ed. Christopher Hogwood: 3. Allegro
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additional property: OTSVerifyInstructions
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Concerto grosso in C, HWV 318 "Alexander's Feast": 2. Largo - Adagio
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duration: PT2M5S
duration ms: 125000
explicit: false
by artist: George Frideric Handel
by artist: Kenneth Sillito
by artist: Neil Black
by artist: John Tunnell
by artist: Kenneth Heath
by artist: James Brown
by artist: Leslie Pearson
by artist: John Constable
by artist: English Chamber Orchestra
by artist: Raymond Leppard
in album: Handel: Oboe Concertos Nos.1-3/Concerto Grosso "Alexander's Feast" etc.
  type: MusicAlbum
  date published: 1971-01-01
popularity: 3
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T00:26:26Z
audio: Concerto grosso in C, HWV 318 "Alexander's Feast": 2. Largo - Adagio
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  additional property: Time Signature
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  additional property: Danceability
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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

Concerto in D Minor for 2 Oboes, Strings & Continuo, RV 535 - Ed. Hogwood: 1. Largo - Allegro
type: MusicRecording
duration: PT3M39S
duration ms: 219266
explicit: false
by artist: Antonio Vivaldi
by artist: Celia Nicklin
by artist: Neil Black
by artist: Christopher Hogwood
by artist: Colin Tilney
by artist: Kenneth Heath
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Vivaldi: The Four Seasons etc
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  date published: 2000-01-01
popularity: 3
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee649d668ddb351da17bf8ffe67204c47fd003f6d4aaeadb26a5eb2cb94bcd4e. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077610491.
  date published: 2026-07-30T09:57:33Z
audio: Concerto in D Minor for 2 Oboes, Strings & Continuo, RV 535 - Ed. Hogwood: 1. Largo - Allegro
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additional property: OTSVerifyInstructions
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Concerto grosso in C, HWV 318 "Alexander's Feast": 3. Allegro - Adagio
type: MusicRecording
duration: PT3M28S
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explicit: false
by artist: George Frideric Handel
by artist: Kenneth Sillito
by artist: Neil Black
by artist: John Tunnell
by artist: Kenneth Heath
by artist: James Brown
by artist: Leslie Pearson
by artist: John Constable
by artist: English Chamber Orchestra
by artist: Raymond Leppard
in album: Handel: Oboe Concertos Nos.1-3/Concerto Grosso "Alexander's Feast" etc.
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popularity: 2
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
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  date published: 2026-07-31T15:20:15Z
audio: Concerto grosso in C, HWV 318 "Alexander's Feast": 3. Allegro - Adagio
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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Concerto grosso in C, HWV 318 "Alexander's Feast": 4. Andante non presto
type: MusicRecording
duration: PT3M32S
duration ms: 212000
explicit: false
by artist: George Frideric Handel
by artist: Kenneth Sillito
by artist: Neil Black
by artist: John Tunnell
by artist: Kenneth Heath
by artist: James Brown
by artist: Leslie Pearson
by artist: John Constable
by artist: English Chamber Orchestra
by artist: Raymond Leppard
in album: Handel: Oboe Concertos Nos.1-3/Concerto Grosso "Alexander's Feast" etc.
  type: MusicAlbum
  date published: 1971-01-01
popularity: 2
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc12c7537e641a443e30ba061eb607bc43ea01939d54467b7295ec883f2d27b. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507100311.
  date published: 2026-07-31T20:22:46Z
audio: Concerto grosso in C, HWV 318 "Alexander's Feast": 4. Andante non presto
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Acousticness
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Instrumentalness
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Liveness
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Valence (Positivity)
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Loudness (dB)
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Key Name
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Mode Name
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Concerto in D Minor for 2 Oboes, Strings & Continuo, RV 535 - Ed. Hogwood: 2. Largo
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duration: PT2M33S
duration ms: 153466
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by artist: Antonio Vivaldi
by artist: Celia Nicklin
by artist: Neil Black
by artist: Christopher Hogwood
by artist: Colin Tilney
by artist: Kenneth Heath
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Vivaldi Adagios
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popularity: 7
isrc code: GBF077610492
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Concerto in D Minor for 2 Oboes, Strings & Continuo, RV 535 - Ed. Hogwood: 2. Largo
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Fantasia on a Theme by Thomas Tallis
type: MusicRecording
duration: PT15M11S
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by artist: Ralph Vaughan Williams
by artist: Iona Brown
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by artist: Stephen Shingles
by artist: Kenneth Heath
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by artist: Sir Neville Marriner
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popularity: 1
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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: 2026-07-08T03:53:27Z
audio: Fantasia on a Theme by Thomas Tallis
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