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type: MusicGroup
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genre: classical
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subject of: OpenTimestamps Proof of Existence
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album: Boccherini: La musica notturna delle strade di Madrid
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  date published: 2011-08-23
  track: String Quintet No. 60 in C Major, Op. 30 No. 6, G. 324 "La musica notturna delle strade di Madrid": I. Il campane quando suonano l'Ave Maria
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    subject of: OpenTimestamps Proof of Existence
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  track: String Quintet No. 60 in C Major, Op. 30 No. 6, G. 324 "La musica notturna delle strade di Madrid": V. "Los manolos" Modo di suono, e canto
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    subject of: OpenTimestamps Proof of Existence
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  track: String Quintet in E Major, Op. 11 No. 5, G. 275: I. Amoroso
  track: String Quintet in E Major, Op. 11 No. 5, G. 275: II. Allegro con spirito
  track: String Quintet in E Major, Op. 11 No. 5, G. 275: III. Minuetto - Trio
  track: String Quintet in E Major, Op. 11 No. 5, G. 275: IV. Andante
  track: String Quartet in G Minor, Op. 32 No.5, G. 205: I. Allegro comodo
  track: String Quartet in G Minor, Op. 32 No.5, G. 205: II. Andantino
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  track: Guitar Quintet No. 6 in D Major, G. 448: I. Pastorale (Arr. from 1st mvt of String Quintet in D major, Op. 10, No. 6, G. 270)
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  track: Guitar Quintet No. 6 in D Major, G. 448: III. Grave assai - IV. Fandango (Arr. from 1st & 2nd mvts of String Quintet in D Major Op. 40 No. 2, G. 341
album: J.S. Bach: The Art of Fugue
album: Mozart: String Quartets dedicated to Joseph Haydn K. 421, 458 'Hunt', 464
album: Beethoven: The Complete String Quartets, Vol. III "Apotheosis"
album: Beethoven: Revelations, 3
album: Beethoven: Revelations, 2
album: Beethoven : Revelations, 1
album: Beethoven: Inventions 3
album: Beethoven: Inventions 2
album: Beethoven: Inventions 1
album: Mozart: String Quartets Nos. 14, 16 & 19 (dedicated to Joseph Haydn)
album: Haydn: Die sieben letzten Worte unseres Erlösers am Kreuze (The Seven Last Words of Christ on the Cross)
album: Schubert: String Quartets D.87 & D.887
album: Bartók, Kurtág, Ligeti: Metamorphosis
album: Haydn: String Quartets, Op. 33 "Russian"
album: Brahms: The String Quartet & Piano Quintet, Op. 34
album: 20th century String Quartets
album: Arriaga: String Quartets
album: Lauba-Morphing
album: J.S. Bach: The Art of Fugue: Contrapunctus I, a 4
album: Mozart: String Quartet, K. 465 "Dissonance"
album: Shostakovich: Complete String Quartets, Vol. 3, Nos. 13-15
album: Shostakovich: Complete String Quartets, Vol. 2, Nos. 6-12
album: Shostakovich: Complete String Quartets, Vol. 1, Nos. 1-5
album: Haydn: String Quartets, Op.33
album: Mozart: Early String Quartets & Divertimenti K.136, 137 & 138
album: Shostakovich: String Quartet No. 15 in E-Flat Minor, Op. 144: IV. Nocturne. Adagio
album: Shostakovich: String Quartet No. 8 in C Minor, Op. 110: II. Allegro molto
album: Shostakovich: String Quartet No. 3 in F Major, Op. 73: III. Allegro non troppo
track: String Quintet No. 60 in C Major, G. 324 "La musica notturna delle strade di Madrid": V. "Los manolos" Modo di suono, e canto
track: String Quintet in E Major, Op. 11 No. 5, G. 275: III. Minuetto - Trio
track: String Quintet in E Major, G. 275: III. Minuetto - Trio
track: String Quintet No. 60 in C Major, G. 324 "La musica notturna delle strade di Madrid": I. Il campane quando suonano l'Ave Maria
track: String Quintet No. 60 in C Major, G. 324 "La musica notturna delle strade di Madrid": VII. Ritirata - Maestoso
track: String Quintet No. 60 in C Major, G. 324 "La musica notturna delle strade di Madrid": IV. Il rosario: Largo assai - Allegro
track: Guitar Quintet No. 6 in D Major, G. 448: III. Grave assai - IV. Fandango (Arr. from 1st & 2nd mvts of String Quintet in D Major Op. 40 No. 2, G. 341)
track: The Seven Last Words of Christ, Hob.XX:2: Sonata II "Fürwahr, ich sag' es dir" (Grave e cantabile)
track: String Quintet in E Major, G. 275: I. Amoroso
track: String Quintet in E Major, G. 275: II. Allegro con spirito
track: String Quintet in E Major, G. 275: IV. Andante
track: String Quartet No. 1 in D Minor: I. Allegro
track: String Quartet No. 1 in D Minor: II. Adagio con espressione
track: String Quartet No. 1 in D Minor: III. Menuetto - Allegro
track: String Quartet No. 1 in D Minor: IV. Adagio - Allegretto
track: String Quartet No. 2 in A Major: I. Allegro con brio
track: String Quartet No. 2 in A Major: II. Andante con variazioni
track: String Quartet No. 2 in A Major: III. Menuetto: Scherzo
track: String Quartet No. 2 in A Major: IV. Andante ma non troppo - Allegro
track: String Quartet No. 3 in E-Flat Major: I. Allegro

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OpenTimestamps Proof of Existence
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String Quintet in E Major, Op. 11 No. 5, G. 275: I. Amoroso
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  value: https://artists.proofprofile.net/proofs/track/6qRXBghjyy72QNSdvJ5yse.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6qRXBghjyy72QNSdvJ5yse
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb634ee479ba48f42151ff0b6f0ab1c7f93f55b6b26ca937cb0f03526b9495c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6qRXBghjyy72QNSdvJ5yse.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6qRXBghjyy72QNSdvJ5yse.
  date published: 2026-07-02T16:51:38Z
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String Quintet in E Major, Op. 11 No. 5, G. 275: II. Allegro con spirito
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duration ms: 437413
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by artist: Luigi Boccherini
by artist: Eckart Runge
by artist: Cuarteto Casals
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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
  type: PropertyValue
  value: https://blockstream.info/api/block/956375
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7fHvONQjy3wm2pTOrsZ1qR.json
additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc619219b0287aed48d9493af68bfc2caaac36be939c91c5eb193567ffc0499. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7fHvONQjy3wm2pTOrsZ1qR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7fHvONQjy3wm2pTOrsZ1qR.
  date published: 2026-07-02T16:51:38Z
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String Quintet in E Major, Op. 11 No. 5, G. 275: III. Minuetto - Trio
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by artist: Luigi Boccherini
by artist: Eckart Runge
by artist: Cuarteto Casals
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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: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4EZmZOHBnQxDjP0toykJ2I.json
additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006da42629dbae6234416866c242865f4783aa502debf83f3d1cef7cc8112764. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4EZmZOHBnQxDjP0toykJ2I.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4EZmZOHBnQxDjP0toykJ2I.
  date published: 2026-06-13T13:32:09Z
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String Quintet in E Major, Op. 11 No. 5, G. 275: IV. Andante
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duration ms: 376133
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by artist: Luigi Boccherini
by artist: Eckart Runge
by artist: Cuarteto Casals
in album: Boccherini: La musica notturna delle strade di Madrid
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isrc code: FRZ141020080
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
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956894
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5rEUeowgwoIHK3RvuaoEFg.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c50245a31022c8427fc845163c6982bc71f43b1af4a11d03100d7e310cf6b1. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5rEUeowgwoIHK3RvuaoEFg.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5rEUeowgwoIHK3RvuaoEFg.
  date published: 2026-07-06T07:53:57Z
  text: {"copyright_id":"0xf0c50245a31022c8427fc845163c6982bc71f43b1af4a11d03100d7e310cf6b1","isrc":"FRZ141020080","name":"String Quintet in E Major, Op. 11 No. 5, G. 275: IV. Andante","registered_at":"2026-06-19T13:50:12Z","spotify_id":"5rEUeowgwoIHK3RvuaoEFg","type":"track"}

String Quartet in G Minor, Op. 32 No.5, G. 205: I. Allegro comodo
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duration: PT5M59S
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by artist: Luigi Boccherini
by artist: Cuarteto Casals
in album: Boccherini: La musica notturna delle strade di Madrid
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isrc code: FRZ141020090
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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String Quartet in G Minor, Op. 32 No.5, G. 205: II. Andantino
type: MusicRecording
duration: PT3M10S
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explicit: false
by artist: Luigi Boccherini
by artist: Cuarteto Casals
in album: Boccherini: La musica notturna delle strade di Madrid
  type: MusicAlbum
  date published: 2011-08-23
isrc code: FRZ141020100
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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  value: 2026-06-20T08:01:51+00:00
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: OTSRecordURL
  type: PropertyValue
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db93c927cad95379bfa28ce69d015224675410120f9636cb21a308bf57dfd44. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2K0JRxl9ZbGhqIORTBZIHw.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2K0JRxl9ZbGhqIORTBZIHw.
  date published: 2026-07-06T07:53:57Z
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String Quartet in G Minor, Op. 32 No.5, G. 205: III. Menuetto con moto - Trio
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duration: PT4M6S
duration ms: 246253
explicit: false
by artist: Luigi Boccherini
by artist: Cuarteto Casals
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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: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6898f50fb42283a7d858031a4dd3c245fc6c3461c22451a01e335cf9b5cd790e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/73mF52tnEE8NB3KCazYqPq.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/73mF52tnEE8NB3KCazYqPq.
  date published: 2026-07-08T03:20:19Z
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String Quartet in G Minor, Op. 32 No.5, G. 205: IV. Allegro giusto
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duration: PT4M17S
duration ms: 257359
explicit: false
by artist: Luigi Boccherini
by artist: Cuarteto Casals
in album: Boccherini: La musica notturna delle strade di Madrid
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additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1850eb03a4f72655caf77484a1f861c958cf1ac6d58a398894e02359a97e477b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6fW51hcnAJfpR55UM5jcB4.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6fW51hcnAJfpR55UM5jcB4.
  date published: 2026-07-06T07:16:32Z
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Guitar Quintet No. 6 in D Major, G. 448: I. Pastorale (Arr. from 1st mvt of String Quintet in D major, Op. 10, No. 6, G. 270)
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duration: PT5M25S
duration ms: 325306
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by artist: Luigi Boccherini
by artist: Carles Trepat
by artist: Cuarteto Casals
in album: Boccherini: La musica notturna delle strade di Madrid
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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Guitar Quintet No. 6 in D Major, G. 448: III. Grave assai - IV. Fandango (Arr. from 1st & 2nd mvts of String Quintet in D Major Op. 40 No. 2, G. 341
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track: String Quartet No. 11 in F Minor, Op. 95 "Serioso": II. Allegretto ma non troppo
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track: String Quartet No. 13 in B-Flat Major, Op. 130: II. Presto
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track: String Quartet No. 5 in A Major, Op. 18 No. 5: III. Andante cantabile con variazioni
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track: String Quartet No. 11 in F Minor, Op. 95 "Serioso": III. Allegro assai vivace ma serioso - Trio
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track: String Quartet No. 5 in A Major, Op. 18 No. 5: IV. Allegro
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track: String Quartet No. 11 in F Minor, Op. 95 "Serioso": IV. Larghetto espressivo - Allegretto agitato
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track: String Quartet No. 6 in B-Flat Major, Op. 18 No. 6: I. Allegro con brio
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track: String Quartet No. 14 in C-Sharp Minor, Op. 131: I. Adagio ma non troppo e molto espressivo
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track: String Quartet No. 13 in B-Flat Major, Op. 130: V. Cavatina. Adagio molto espressivo
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track: String Quartet No. 6 in B-Flat Major, Op. 18 No. 6: II. Adagio ma non troppo
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track: String Quartet No. 14 in C-Sharp Minor, Op. 131: II. Allegro molto vivace
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track: Grosse Fuge in B-Flat Major, Op. 133: Overtura. Allegro - Allegro - Fuga
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track: String Quartet No. 6 in B-Flat Major, Op. 18 No. 6: III. Scherzo. Allegro. Trio
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track: String Quartet No. 14 in C-Sharp Minor, Op. 131: III. Allegro moderato - Adagio
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String Quartet No. 13 in B-Flat Major, Op. 130: Finale. Allegro [Alternative finale]
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String Quartet No. 14 in C-Sharp Minor, Op. 131: IV. Andante ma non troppo e molto cantabile
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String Quartet No. 14 in C-Sharp Minor, Op. 131: VI. Adagio quasi un poco andante
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String Quartet No. 14 in C-Sharp Minor, Op. 131: VII. Allegro
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Beethoven: Revelations, 3
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track: String Quartet No. 15 in A Minor, Op. 132: I. Assai sostenuto - Allegro
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track: String Quartet No. 15 in A Minor, Op. 132: II. Allegro ma non tanto
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track: String Quartet No. 15 in A Minor, Op. 132: III. Molto adagio
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track: String Quartet No. 15 in A Minor, Op. 132: IV. Alla Marcia. Assai vivace
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track: String Quartet No. 15 in A Minor, Op. 132: V. Allegro appassionato - Presto
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Beethoven: Revelations, 2
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track: String Quartet No. 8 in E Minor, Op. 59, No. 2: II. Molto adagio. Si tratta questo pezzo con molto di sentimento
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track: String Quartet No. 8 in E Minor, Op. 59, No. 2: III. Allegretto - Maggiore, Thème russe
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track: String Quartet No. 8 in E Minor, Op. 59, No. 2: IV. Finale. Presto
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track: String Quartet No. 9 in C Major, Op. 59, No. 3: I. Introduzione. Andante con moto - Allegro vivace
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Beethoven : Revelations, 1
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track: String Quartet No. 2 in G Major, Op. 18, No. 2: IV. Allegro molto, quasi presto
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track: String Quartet No. 10 in E-Flat Major, Op. 74: I. Poco adagio - Allegro
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track: String Quartet No. 10 in E-Flat Major, Op. 74: II. Adagio ma non troppo
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track: String Quartet No. 10 in E-Flat Major, Op. 74: III. Presto - Più presto quasi prestissimo
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track: String Quartet No. 10 in E-Flat Major, Op. 74: IV. Allegretto con variazioni
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Beethoven: Inventions 3
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track: String Quartet No. 12 in E-Flat Major, Op. 127: II. Adagio ma non troppo e molto cantabile
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track: String Quartet No. 12 in E-Flat Major, Op. 127: III. Scherzo vivace. Trio
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track: String Quartet No. 12 in E-Flat Major, Op. 127: IV. Finale. Allegro
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track: String Quartet No. 16 in F Major, Op. 135: I. Allegretto
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track: String Quartet No. 16 in F Major, Op. 135: II. Vivace
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track: String Quartet No. 16 in F Major, Op. 135: IV. Grave, ma non troppo tratto. Allegro
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Beethoven: Inventions 2
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track: Piano Sonata No. 9 in F Major, Op. 14, No. 1: III. Allegro (arranged for string quartet)
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track: String Quartet No. 7 in F Major, Op. 59, No. 1: I. Allegro
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track: String Quartet No. 7 in F Major, Op. 59, No. 1: III. Adagio molto e mesto
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track: String Quartet No. 7 in F Major, Op. 59, No. 1: IV. Thème russe. Allegro
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Beethoven: Inventions 1
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Bartók, Kurtág, Ligeti: Metamorphosis
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Twelve Microludes for string quartet, Op. 13 "Hommage à András Mihály": XI.
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12 Microludes for string quartet, Op. 13 "Hommage à András Mihály": XII. Leggiero, con moto, non dolce
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Haydn: String Quartets, Op. 33 "Russian"
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String Quartet in D major, Hob.III:42: II. Andante
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String Quartet in C major, Hob.III:39 "The Bird": III. Adagio
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String Quartet in D major, Hob.III:42: III. Scherzo (Allegro)
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String Quartet in C major, Hob.III:39 "The Bird": IV. Rondo (Presto)
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String Quartet in D major, Hob.III:42: III. Finale (Allegretto)
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Brahms: The String Quartet & Piano Quintet, Op. 34
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track: Piano Quintet in F Minor, Op.34: III. Scherzo. Allegro
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20th century String Quartets
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track: Quatuor à cordes en sol mineur op. 10: I. Animé et très decidé
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  by artist: Maurice Ravel
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track: Quatuor à cordes en sol mineur op. 10: II. Assez vif et bien rythmé
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track: Cuarteto para cuerda: II. Assez vif- très rythmé (Cuarteto para cuerda)
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track: Quatuor à cordes en sol mineur op. 10: III. Andantino, doucement expressif
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track: Cuarteto para cuerda: III. Très lent
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track: Quatuor à cordes en sol mineur op. 10: IV. Très moderé -Très mouvementé et avec passion
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track: Quatuor à cordes nº 2 op. 15: I. Sehr Mäbig - Heftig und leidenschaflich. II. Moderato - Andante mosso - Alegretto
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track: Vistes al mar: I. La Ginesta (Poema de Joan Maragall)
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track: Vistes al mar: III. A les llunyanies (Poema de Joan Maragall)
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track: Quatuor à cordes nº 2 op. 15: IV. Andante - Mit energischer Entschlossenheit
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track: Vistes al mar: IV. Lento
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track: Vistes al mar: V. La mar estava alagre aquest migdia (Poema de Joan Maragall)
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track: Quatuor à cordes nº 2 op. 15: VI. Langsam - Andante
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Toldrà Eduard
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Cuarteto Casals
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20th century String Quartets
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date published: 1970-01-01

Oración del torero
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Arriaga: String Quartets
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track: String Quartet No. 1 in D Minor: IV. Adagio - Allegretto
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Lauba-Morphing
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track: Brasil sem fim - Pour Piano
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track: Kwintus - Pour Violon Solo
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track: Stan - Pour Saxophone Baryton
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J.S. Bach: The Art of Fugue: Contrapunctus I, a 4
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Mozart: String Quartet, K. 465 "Dissonance"
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Shostakovich: Complete String Quartets, Vol. 3, Nos. 13-15
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Shostakovich: Complete String Quartets, Vol. 2, Nos. 6-12
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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track: String Quintet No. 60 in C Major, G. 324 "La musica notturna delle strade di Madrid": V. "Los manolos" Modo di suono, e canto
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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track: String Quintet No. 60 in C Major, G. 324 "La musica notturna delle strade di Madrid": VII. Ritirata - Maestoso
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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track: String Quintet in E Major, G. 275: I. Amoroso
track: String Quintet in E Major, G. 275: II. Allegro con spirito
track: String Quintet in E Major, G. 275: III. Minuetto - Trio
track: String Quintet in E Major, G. 275: IV. Andante
track: String Quartet No. 47 in G Minor, G. 205: I. Allegro comodo
track: String Quartet No. 47 in G Minor, G. 205: II. Andantino
track: String Quartet No. 47 in G Minor, G. 205: III. Menuetto con moto - Trio
track: String Quartet No. 47 in G Minor, G. 205: IV. Allegro giusto
track: Guitar Quintet No. 6 in D Major, G. 448: I. Pastorale (Arr. from 1st mvt of String Quintet in D major, Op. 10, No. 6, G. 270)
track: Guitar Quintet No. 6 in D Major, G. 448: II. Allegro maestoso (Arr. from 2nd mvt of String Quintet in D Major, Op. 10 No. 6, G. 270)
track: Guitar Quintet No. 6 in D Major, G. 448: III. Grave assai - IV. Fandango (Arr. from 1st & 2nd mvts of String Quintet in D Major Op. 40 No. 2, G. 341)

String Quintet in E Major, G. 275: I. Amoroso
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by artist: Cuarteto Casals
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb634ee479ba48f42151ff0b6f0ab1c7f93f55b6b26ca937cb0f03526b9495c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2bKwprBlSi5a5T4HmKML2g.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2bKwprBlSi5a5T4HmKML2g.
  date published: 2026-07-02T03:30:09Z
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String Quintet in E Major, G. 275: II. Allegro con spirito
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by artist: Cuarteto Casals
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
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String Quintet in E Major, G. 275: III. Minuetto - Trio
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by artist: Cuarteto Casals
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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String Quintet in E Major, G. 275: IV. Andante
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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String Quartet No. 47 in G Minor, G. 205: I. Allegro comodo
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by artist: Cuarteto Casals
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
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String Quartet No. 47 in G Minor, G. 205: II. Andantino
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by artist: Luigi Boccherini
by artist: Cuarteto Casals
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db93c927cad95379bfa28ce69d015224675410120f9636cb21a308bf57dfd44. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5cCM2X4d9V1WPwTO57EV5d.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5cCM2X4d9V1WPwTO57EV5d.
  date published: 2026-07-02T03:30:09Z
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String Quartet No. 47 in G Minor, G. 205: III. Menuetto con moto - Trio
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by artist: Cuarteto Casals
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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String Quartet No. 47 in G Minor, G. 205: IV. Allegro giusto
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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Guitar Quintet No. 6 in D Major, G. 448: I. Pastorale (Arr. from 1st mvt of String Quintet in D major, Op. 10, No. 6, G. 270)
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7775edce12378281294c21126bda8dc0f6cfe74b5c93d536568a09c6369fd484. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1Bs6b2WkoCKm3mSqCRmoXt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1Bs6b2WkoCKm3mSqCRmoXt.
  date published: 2026-07-02T05:09:12Z
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Guitar Quintet No. 6 in D Major, G. 448: II. Allegro maestoso (Arr. from 2nd mvt of String Quintet in D Major, Op. 10 No. 6, G. 270)
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by artist: Cuarteto Casals
by artist: Carles Trepat
by artist: Daniel Tummer
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
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Guitar Quintet No. 6 in D Major, G. 448: III. Grave assai - IV. Fandango (Arr. from 1st & 2nd mvts of String Quintet in D Major Op. 40 No. 2, G. 341)
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d2e757420a1026d42b0f352bed4889fbbaeb99f6a4d048420360206b108f36. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4KfqgQOVx3hZMAZtgRutAy.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4KfqgQOVx3hZMAZtgRutAy.
  date published: 2026-06-13T17:25:41Z
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Haydn: String Quartets, Op.33
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track: String Quartet in B minor, Hob.III:37: String Quartet in B minor, Hob.III:37: I. Allegro moderato
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track: String Quartet in E-Flat major, Hob.III:38: String Quartet in E-Flat major, Hob.III:38: I. Allegro moderato cantabile
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String Quartet in C major, Hob.III:39 "The Bird": String Quartet in C major, Hob.III:39 "The Bird": III. Adagio
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String Quartet in D major, Hob.III:42: String Quartet in D major, Hob.III:42: III. Scherzo (Allegro)
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String Quartet in C major, Hob.III:39 "The Bird": String Quartet in C major, Hob.III:39 "The Bird": IV. Rondo (Presto)
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String Quartet in D major, Hob.III:42: String Quartet in D major, Hob.III:42: III. Finale (Allegretto)
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Mozart: Early String Quartets & Divertimenti K.136, 137 & 138
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track: String Quartet No. 3 in G Major, K. 156/134b: I. Presto
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track: String Quartet No. 9 in A Major, K. 169: I. Molto allegro
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track: String Quartet No. 1 in G Major, K. 80: II. Allegro
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track: String Quartet No. 3 in G Major, K. 156/134b: II. Adagio
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track: String Quartet No. 9 in A Major, K. 169: II. Andante
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track: String Quartet No. 1 in G Major, K. 80: III. Minuetto
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track: String Quartet No. 3 in G Major, K. 156/134b: III. Tempo di menuetto
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track: String Quartet No. 1 in G Major, K. 80: IV. Rondeau. Allegro
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track: String Quartet No. 4 in C Major, K. 157: I. Allegro
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track: Divertimento in D Major, K. 136/125a: I. Allegro
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track: String Quartet No. 4 in C Major, K. 157: II. Andante
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track: String Quartet No. 10 in C Major, K. 170: I. Thema. Andante
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track: String Quartet No. 4 in C Major, K. 157: III. Presto
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track: String Quartet No. 10 in C Major, K. 170: II. Menuetto
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track: String Quartet No. 5 in F Major, K. 158: I. Allegro
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track: String Quartet No. 10 in C Major, K. 170: III. Un poco Adagio
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String Quartet No. 10 in C Major, K. 170: III. Un poco Adagio
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Divertimento in B-Flat Major, K. 137/125b: I. Andante
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String Quartet No. 5 in F Major, K. 158: II. Andante un poco allegretto
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String Quartet No. 10 in C Major, K. 170: IV. Rondeaux. Allegro
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Divertimento in B-Flat Major, K. 137/125b: II. Allegro di molto
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String Quartet No. 5 in F Major, K. 158: III. Tempo di minuetto
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String Quartet No. 11 in E-Flat Major, K. 171: I. Adagio - Allegro Assai - Adagio
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Divertimento in B-Flat Major, K. 137/125b: III. Allegro assai
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String Quartet No. 6 in B-Flat Major, K. 159: I. Andante
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String Quartet No. 11 in E-Flat Major, K. 171: II. Menuetto
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Divertimento in F Major, K. 138/125c: I. Allegro
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String Quartet No. 6 in B-Flat Major, K. 159: II. Allegro
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String Quartet No. 11 in E-Flat Major, K. 171: III. Andante
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String Quartet No. 6 in B-Flat Major, K. 159: III. Rondo. Allegro grazioso
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String Quartet No. 11 in E-Flat Major, K. 171: IV. Allegro assai
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Divertimento in F Major, K. 138/125c: III. Presto
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String Quartet No. 7 in E-Flat Major, K. 160/159a: I. Allegro
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String Quartet No. 12 in B-Flat Major, K. 172: I. Allegro spiritoso
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String Quartet No. 2 in D Major, K. 155/134a: I. Allegro
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String Quartet No. 7 in E-Flat Major, K. 160/159a: II. Un Poco adagio
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String Quartet No. 12 in B-Flat Major, K. 172: III. Menuetto
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String Quartet No. 2 in D Major, K. 155/134a: III. Molto allegro
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String Quartet No. 8 in F Major, K. 168: I. Allegro
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String Quartet No. 8 in F Major, K. 168: III. Menuetto
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String Quartet No. 8 in F Major, K. 168: IV. Allegro
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Shostakovich: String Quartet No. 15 in E-Flat Minor, Op. 144: IV. Nocturne. Adagio
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Shostakovich: String Quartet No. 8 in C Minor, Op. 110: II. Allegro molto
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Shostakovich: String Quartet No. 3 in F Major, Op. 73: III. Allegro non troppo
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String Quintet No. 60 in C Major, G. 324 "La musica notturna delle strade di Madrid": V. "Los manolos" Modo di suono, e canto
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String Quintet in E Major, Op. 11 No. 5, G. 275: III. Minuetto - Trio
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String Quintet No. 60 in C Major, G. 324 "La musica notturna delle strade di Madrid": I. Il campane quando suonano l'Ave Maria
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String Quintet No. 60 in C Major, G. 324 "La musica notturna delle strade di Madrid": VII. Ritirata - Maestoso
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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String Quintet No. 60 in C Major, G. 324 "La musica notturna delle strade di Madrid": IV. Il rosario: Largo assai - Allegro
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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Guitar Quintet No. 6 in D Major, G. 448: III. Grave assai - IV. Fandango (Arr. from 1st & 2nd mvts of String Quintet in D Major Op. 40 No. 2, G. 341)
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subject of: OpenTimestamps Proof of Existence
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The Seven Last Words of Christ, Hob.XX:2: Sonata II "Fürwahr, ich sag' es dir" (Grave e cantabile)
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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String Quintet in E Major, G. 275: I. Amoroso
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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String Quintet in E Major, G. 275: II. Allegro con spirito
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subject of: OpenTimestamps Proof of Existence
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String Quintet in E Major, G. 275: IV. Andante
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subject of: OpenTimestamps Proof of Existence
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String Quartet No. 1 in D Minor: I. Allegro
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  date published: 1970-01-01
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String Quartet No. 1 in D Minor: II. Adagio con espressione
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String Quartet No. 1 in D Minor: III. Menuetto - Allegro
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  type: MusicAlbum
  date published: 1970-01-01
isrc code: ES5190338030

String Quartet No. 1 in D Minor: IV. Adagio - Allegretto
type: MusicRecording
duration: PT7M21S
duration ms: 441733
explicit: false
by artist: Juan Crisóstomo Arriaga
by artist: Cuarteto Casals
in album: Arriaga: String Quartets
  type: MusicAlbum
  date published: 1970-01-01
isrc code: ES5190338040

String Quartet No. 2 in A Major: I. Allegro con brio
type: MusicRecording
duration: PT5M51S
duration ms: 351866
explicit: false
by artist: Juan Crisóstomo Arriaga
by artist: Cuarteto Casals
in album: Arriaga: String Quartets
  type: MusicAlbum
  date published: 1970-01-01
isrc code: ES5190338050

String Quartet No. 2 in A Major: II. Andante con variazioni
type: MusicRecording
duration: PT6M53S
duration ms: 413600
explicit: false
by artist: Juan Crisóstomo Arriaga
by artist: Cuarteto Casals
in album: Arriaga: String Quartets
  type: MusicAlbum
  date published: 1970-01-01
isrc code: ES5190338060

String Quartet No. 2 in A Major: III. Menuetto: Scherzo
type: MusicRecording
duration: PT2M54S
duration ms: 174933
explicit: false
by artist: Juan Crisóstomo Arriaga
by artist: Cuarteto Casals
in album: Arriaga: String Quartets
  type: MusicAlbum
  date published: 1970-01-01
isrc code: ES5190338070

String Quartet No. 2 in A Major: IV. Andante ma non troppo - Allegro
type: MusicRecording
duration: PT4M44S
duration ms: 284933
explicit: false
by artist: Juan Crisóstomo Arriaga
by artist: Cuarteto Casals
in album: Arriaga: String Quartets
  type: MusicAlbum
  date published: 1970-01-01
isrc code: ES5190338080

String Quartet No. 3 in E-Flat Major: I. Allegro
type: MusicRecording
duration: PT5M46S
duration ms: 346400
explicit: false
by artist: Juan Crisóstomo Arriaga
by artist: Cuarteto Casals
in album: Arriaga: String Quartets
  type: MusicAlbum
  date published: 1970-01-01
isrc code: ES5190338090