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genre: classical
description: Felix Ayo Losada (1 July 1933 – 24 September 2023) was a Spanish-born Italian violinist. He was a founder of the Italian ensemble I Musici and of the Quartetto Beethoven di Roma. He played in major co
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  track: Brandenburg Concerto No. 1 in F Major, BWV 1046: III. Allegro
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  track: Brandenburg Concerto No. 1 in F Major, BWV 1046: IV. Menuetto
  track: Brandenburg Concerto No. 5 in D Major, BWV 1050: I. Allegro
  track: Brandenburg Concerto No. 2 in F Major, BWV 1047: I. Allegro
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  track: Brandenburg Concerto No. 2 in F Major, BWV 1047: III. Allegro assai
  track: Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: I. Allegro
  track: Brandenburg Concerto No. 3 in G Major, BWV 1048: I. Allegro
  track: Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio
  track: Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: III. Allegro
  track: Brandenburg Concerto No. 3 in G Major, BWV 1048: III. Allegro
album: Pergolesi: Chamber Music for Strings
album: Vivaldi: Concerti Da Camera
album: Cinque concerti festivi
album: Vivaldi: The Four Seasons by Felix Ayo
album: A Vivaldi Recital
album: Vivaldi: Violin Concertos
album: Vivaldi: The Four Seasons & L'amoroso (2017 Digital Remaster)
album: Antonio Lucio Vivaldi: Las Cuatro Estaciones
album: Classical Christmas
album: Viotti: Violin Sonatas (Complete), Vol. 3
album: Viotti: Violin Sonatas (Complete), Vol. 2
album: Vivaldi: Concertos pour violon "Il sospetto", "L'inquietudine", "L'amoroso" & "Il riposo" (Stereo Version)
album: Mendelssohn, Felix: Violin Concerto in D Minor / Concerto for Violin and Piano
album: Albinoni: The Complete Concertos/Adagio for Organ & Strings
album: Vivaldi: 12 Concerti Op.8
album: Albinoni: 6 Concerti from Op. 9
album: Handel: Concerto grosso, Op. 6 No. 4 - Bach: Concerto pour piano No. 5 - Haydn: Concerto pour violon, Hob. VIIa:1 (Stereo Version)
album: Handel: Concerto grosso, Op. 6 No. 4 - Bach: Concerto pour piano No. 5 - Haydn: Concerto pour violon, Hob. VIIa:1 (Mono Version)
album: Vivaldi Edition Vol.2 - Op.7-12
album: "Ayo - El Violín Barroco"

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  date published: 2026-07-08T03:20:19Z
audio: Brandenburg Concerto No. 1 in F Major, BWV 1046: III. Allegro
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Brandenburg Concerto No. 4 in G Major, BWV 1049: III. Presto
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duration: PT5M49S
duration ms: 349720
explicit: false
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by artist: Heinz Holliger
by artist: Severino Gazzelloni
by artist: Maurice André
by artist: Felix Ayo
by artist: Frans Brüggen
by artist: I Musici
in album: J.S. Bach: Brandenburg Concertos
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  date published: 2020-03-06
popularity: 4
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
genre: concerto
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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
audio: Brandenburg Concerto No. 4 in G Major, BWV 1049: III. Presto
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Brandenburg Concerto No. 1 in F Major, BWV 1046: IV. Menuetto
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duration: PT8M2S
duration ms: 482440
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by artist: Johann Sebastian Bach
by artist: Heinz Holliger
by artist: Severino Gazzelloni
by artist: Maurice André
by artist: Felix Ayo
by artist: Frans Brüggen
by artist: I Musici
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  date published: 2020-03-06
popularity: 5
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T17:23:26Z
audio: Brandenburg Concerto No. 1 in F Major, BWV 1046: IV. Menuetto
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Brandenburg Concerto No. 5 in D Major, BWV 1050: I. Allegro
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duration: PT11M31S
duration ms: 691040
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by artist: Johann Sebastian Bach
by artist: Heinz Holliger
by artist: Severino Gazzelloni
by artist: Maurice André
by artist: Felix Ayo
by artist: Frans Brüggen
by artist: I Musici
in album: J.S. Bach: Brandenburg Concertos
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  date published: 2020-03-06
popularity: 4
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T09:25:34Z
audio: Brandenburg Concerto No. 5 in D Major, BWV 1050: I. Allegro
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Brandenburg Concerto No. 2 in F Major, BWV 1047: I. Allegro
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duration ms: 323560
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by artist: Johann Sebastian Bach
by artist: Heinz Holliger
by artist: Severino Gazzelloni
by artist: Maurice André
by artist: Felix Ayo
by artist: Frans Brüggen
by artist: I Musici
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popularity: 5
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: 2026-07-08T03:20:19Z
audio: Brandenburg Concerto No. 2 in F Major, BWV 1047: I. Allegro
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Brandenburg Concerto No. 5 in D Major, BWV 1050: II. Affettuoso
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duration ms: 336226
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by artist: Heinz Holliger
by artist: Severino Gazzelloni
by artist: Maurice André
by artist: Felix Ayo
by artist: Frans Brüggen
by artist: I Musici
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  date published: 2020-03-06
popularity: 3
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
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isrc code: ITCC51104588
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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: Brandenburg Concerto No. 5 in D Major, BWV 1050: II. Affettuoso
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Brandenburg Concerto No. 2 in F Major, BWV 1047: II. Andante
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duration ms: 271960
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by artist: Heinz Holliger
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by artist: Felix Ayo
by artist: Frans Brüggen
by artist: I Musici
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popularity: 4
genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T05:17:02Z
audio: Brandenburg Concerto No. 2 in F Major, BWV 1047: II. Andante
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Brandenburg Concerto No. 5 in D Major, BWV 1050: III. Allegro
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by artist: Heinz Holliger
by artist: Severino Gazzelloni
by artist: Maurice André
by artist: Felix Ayo
by artist: Frans Brüggen
by artist: I Musici
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  date published: 2020-03-06
popularity: 4
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: 2026-07-31T15:20:15Z
audio: Brandenburg Concerto No. 5 in D Major, BWV 1050: III. Allegro
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Brandenburg Concerto No. 2 in F Major, BWV 1047: III. Allegro assai
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by artist: Heinz Holliger
by artist: Severino Gazzelloni
by artist: Maurice André
by artist: Felix Ayo
by artist: Frans Brüggen
by artist: I Musici
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genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T02:19:15Z
audio: Brandenburg Concerto No. 2 in F Major, BWV 1047: III. Allegro assai
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Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: I. Allegro
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by artist: Heinz Holliger
by artist: Severino Gazzelloni
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by artist: Felix Ayo
by artist: Frans Brüggen
by artist: I Musici
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popularity: 3
genre: classical
genre: classical-piano
genre: early-music
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genre: chamber-music
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:20:15Z
audio: Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: I. Allegro
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Brandenburg Concerto No. 3 in G Major, BWV 1048: I. Allegro
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duration ms: 370853
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by artist: Heinz Holliger
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by artist: Felix Ayo
by artist: Frans Brüggen
by artist: I Musici
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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: 2026-07-08T03:20:19Z
audio: Brandenburg Concerto No. 3 in G Major, BWV 1048: I. Allegro
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Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio
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by artist: Felix Ayo
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by artist: I Musici
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popularity: 3
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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
audio: Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio
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Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: III. Allegro
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by artist: Felix Ayo
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by artist: I Musici
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popularity: 4
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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: Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: III. Allegro
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Brandenburg Concerto No. 3 in G Major, BWV 1048: III. Allegro
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51104583
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T09:25:34Z
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 0xb9b2b65d0ec8280ee4a1d28590e2bafa5dd5f8b61ae241a0c512f6e9e1947bb5. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/ITCC51104583.
  date published: 2026-07-31T09:25:34Z
audio: Brandenburg Concerto No. 3 in G Major, BWV 1048: III. Allegro
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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    value: 7
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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    value: 0.602
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
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    value: 0.897
  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
    value: 0.179
  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Pergolesi: Chamber Music for Strings
type: MusicAlbum
date published: 2022-05-06
track: Concertino for Strings No. 1 in G Major: I. Grave - II. Allegro
  type: MusicRecording
  duration: PT6M16S
  duration ms: 376317
  explicit: false
  by artist: Giovanni Battista Pergolesi
  by artist: Felix Ayo
  by artist: I Musici
  in album: Pergolesi: Chamber Music for Strings
    type: MusicAlbum
    date published: 2022-05-06
  popularity: 2
  genre: classical
  genre: choral
  genre: requiem
  isrc code: DEL112200307
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T05:31:01+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6cce4989b1cbb29f25179fd54f874be9d91eeafc39268ce693a596c9148246e6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEL112200307
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  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 0x6cce4989b1cbb29f25179fd54f874be9d91eeafc39268ce693a596c9148246e6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEL112200307.
    date published: 2026-07-08T03:22:41Z
  audio: Concertino for Strings No. 1 in G Major: I. Grave - II. Allegro
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 126.719
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.335
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.929
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.521
    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.152
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.747
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Concertino for Strings No. 1 in G Major: III. Grave
  type: MusicRecording
  duration: PT6M18S
  duration ms: 378037
  explicit: false
  by artist: Giovanni Battista Pergolesi
  by artist: Felix Ayo
  by artist: I Musici
  in album: Pergolesi: Chamber Music for Strings
    type: MusicAlbum
    date published: 2022-05-06
  popularity: 2
  genre: classical
  genre: choral
  genre: requiem
  isrc code: DEL112200308
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-08-01T01:18:35+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x16769f0ff4ca891337b7d0a328b4a31de69066695a056b8460ca0da2c136c527
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960494
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEL112200308
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-08-01T01:44:32Z
  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 0x16769f0ff4ca891337b7d0a328b4a31de69066695a056b8460ca0da2c136c527. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/DEL112200308.
    date published: 2026-08-01T01:44:32Z
  audio: Concertino for Strings No. 1 in G Major: III. Grave
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 169.346
    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.079
    additional property: Energy
      type: PropertyValue
      value: 0.265
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.658
    additional property: Instrumentalness
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.04
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.38
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Concertino for Strings No. 1 in G Major: IV. Allegro
  type: MusicRecording
  duration: PT2M5S
  duration ms: 125345
  explicit: false
  by artist: Giovanni Battista Pergolesi
  by artist: Felix Ayo
  by artist: I Musici
  in album: Pergolesi: Chamber Music for Strings
    type: MusicAlbum
    date published: 2022-05-06
  popularity: 2
  genre: classical
  genre: choral
  genre: requiem
  isrc code: DEL112200309
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Concertino for Strings No. 1 in G Major: IV. Allegro
track: Concertino for Strings No. 2 in G Major: I. Largo - II. Non presto
track: Concertino for Strings No. 2 in G Major: III. Andante affettuoso
track: Concertino for Strings No. 2 in G Major: IV. Allegro

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-31T14:53:33+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x4f5fac13526c40df5cda2895c02b4deb4ba1811d4be79bf70efa7ecf44acd7fd

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 960418

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960418

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEL112200309

OTSTimestamp
type: PropertyValue
value: 2026-07-31T15:20:15Z

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 0x4f5fac13526c40df5cda2895c02b4deb4ba1811d4be79bf70efa7ecf44acd7fd. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEL112200309.
date published: 2026-07-31T15:20:15Z

Concertino for Strings No. 1 in G Major: IV. Allegro
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 95.064
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.52
additional property: Energy
  type: PropertyValue
  value: 0.33
additional property: Speechiness
  type: PropertyValue
  value: 0.061
additional property: Acousticness
  type: PropertyValue
  value: 0.965
additional property: Instrumentalness
  type: PropertyValue
  value: 0.734
additional property: Liveness
  type: PropertyValue
  value: 0.184
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.765
additional property: Loudness (dB)
  type: PropertyValue
  value: -15.282
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

Concertino for Strings No. 2 in G Major: I. Largo - II. Non presto
type: MusicRecording
duration: PT5M22S
duration ms: 322439
explicit: false
by artist: Giovanni Battista Pergolesi
by artist: Felix Ayo
by artist: I Musici
in album: Pergolesi: Chamber Music for Strings
  type: MusicAlbum
  date published: 2022-05-06
popularity: 2
genre: classical
genre: choral
genre: requiem
isrc code: DEL112200310
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T23:04:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x993b9c43c143fc5aacae356dcd0186c88b3dacc8cc2fb80cd0bb00a6c5ad5a71
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960478
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960478
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEL112200310
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:30:38Z
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 0x993b9c43c143fc5aacae356dcd0186c88b3dacc8cc2fb80cd0bb00a6c5ad5a71. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEL112200310.
  date published: 2026-07-31T23:30:38Z
audio: Concertino for Strings No. 2 in G Major: I. Largo - II. Non presto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.949
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.259
  additional property: Energy
    type: PropertyValue
    value: 0.27
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.568
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.697
  additional property: Liveness
    type: PropertyValue
    value: 0.135
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.239
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.985
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Concertino for Strings No. 2 in G Major: III. Andante affettuoso
type: MusicRecording
duration: PT4M12S
duration ms: 252496
explicit: false
by artist: Giovanni Battista Pergolesi
by artist: Felix Ayo
by artist: I Musici
in album: Pergolesi: Chamber Music for Strings
  type: MusicAlbum
  date published: 2022-05-06
popularity: 1
genre: classical
genre: choral
genre: requiem
isrc code: DEL112200311
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T18:47:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c2a746f5115667a44491032396ecad90c1716db3842b3b95852b43f13cc476f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEL112200311
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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 0x4c2a746f5115667a44491032396ecad90c1716db3842b3b95852b43f13cc476f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEL112200311.
  date published: 2026-07-08T03:22:41Z
audio: Concertino for Strings No. 2 in G Major: III. Andante affettuoso
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.569
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.164
  additional property: Energy
    type: PropertyValue
    value: 0.371
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.706
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.841
  additional property: Liveness
    type: PropertyValue
    value: 0.097
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.152
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.247
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

Concertino for Strings No. 2 in G Major: IV. Allegro
type: MusicRecording
duration: PT1M56S
duration ms: 116519
explicit: false
by artist: Giovanni Battista Pergolesi
by artist: Felix Ayo
by artist: I Musici
in album: Pergolesi: Chamber Music for Strings
  type: MusicAlbum
  date published: 2022-05-06
popularity: 2
genre: classical
genre: choral
genre: requiem
isrc code: DEL112200312
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T10:38:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8a54896994c72cbdddd7893792a72606e63bff8dfd3b0365b90a228da5f8a0ad
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEL112200312
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
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 0x8a54896994c72cbdddd7893792a72606e63bff8dfd3b0365b90a228da5f8a0ad. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEL112200312.
  date published: 2026-07-31T12:24:41Z
audio: Concertino for Strings No. 2 in G Major: IV. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.701
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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Vivaldi: Concerti Da Camera
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date published: 2012-01-01

Cinque concerti festivi
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date published: 2022-12-02

Vivaldi: The Four Seasons by Felix Ayo
type: MusicAlbum
date published: 2022-05-03
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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: 2026-07-31T02:19:15Z
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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: 2026-07-31T15:20:15Z
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  subject of: OpenTimestamps Proof of Existence
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track: Concerto No. 2 « Summer » RV 315 in G minor - I. Allegro non molto - Remastered 2022, Version 1959
track: Concerto No. 2 « Summer » RV 315 in G minor - II. Adagio, Presto - Remastered 2022, Version 1959
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track: Concerto No. 3 « Autumn » RV 293 in F Major - I. Allegro: Ballo e canto de’ Villanelli - Remastered 2022, Version 1959
track: Concerto No. 4 « Winter » RV 297 in F minor - I. Allegro non molto - Remastered 2022, Version 1959
track: Concerto No. 4 « Winter » RV 297 in F minor - II. Largo - Remastered 2022, Version 1959

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OTSVerificationAPI
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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
type: DigitalDocument
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date published: 2026-07-31T02:19:15Z

Concerto No. 1 « Spring » RV 269 in E Major - III. Allegro: Danza pastorale - Remastered 2022, Version 1959
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Concerto No. 2 « Summer » RV 315 in G minor - I. Allegro non molto - Remastered 2022, Version 1959
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by artist: Felix Ayo
by artist: I Musici
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:59:18Z
audio: Concerto No. 2 « Summer » RV 315 in G minor - I. Allegro non molto - Remastered 2022, Version 1959
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by artist: Felix Ayo
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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: 2026-07-31T17:29:52Z
audio: Concerto No. 2 « Summer » RV 315 in G minor - II. Adagio, Presto - Remastered 2022, Version 1959
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genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Concerto No. 2 « Summer » RV 315 in G minor - III. Presto: Tempo impetuoso d’Estate - Remastered 2022, Version 1959
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Concerto No. 3 « Autumn » RV 293 in F Major - I. Allegro: Ballo e canto de’ Villanelli - Remastered 2022, Version 1959
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Concerto No. 4 « Winter » RV 297 in F minor - I. Allegro non molto - Remastered 2022, Version 1959
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Concerto No. 4 « Winter » RV 297 in F minor - II. Largo - Remastered 2022, Version 1959
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A Vivaldi Recital
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Vivaldi: Violin Concertos
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Vivaldi: The Four Seasons & L'amoroso (2017 Digital Remaster)
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Antonio Lucio Vivaldi: Las Cuatro Estaciones
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Classical Christmas
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Viotti: Violin Sonatas (Complete), Vol. 3
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Viotti: Violin Sonatas (Complete), Vol. 2
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Vivaldi: Concertos pour violon "Il sospetto", "L'inquietudine", "L'amoroso" & "Il riposo" (Stereo Version)
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Mendelssohn, Felix: Violin Concerto in D Minor / Concerto for Violin and Piano
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Albinoni: The Complete Concertos/Adagio for Organ & Strings
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track: Concerto a 5 in B flat, Op. 9, No. 1 for Violin, Strings, and Continuo - Rev. Giegling: 2. Adagio
track: Concerto a 5 in D, Op. 9, No. 7 for Violin, Strings, and Continuo - Rev. Giegling: 3. Allegro
track: Concerto a 5 in B flat, Op. 9, No. 1 for Violin, Strings, and Continuo - Rev. Giegling: 3. Allegro
track: Oboe Concerto in G Minor, Op. 9 No. 8: I. Allegro
track: Oboe Concerto in D Minor, Op. 9 No. 2: I. Allegro e non presto
track: Oboe Concerto in G Minor, Op. 9 No. 8: II. Adagio
track: Oboe Concerto in D Minor, Op. 9 No. 2: II. Adagio
track: Oboe Concerto in G Minor, Op. 9 No. 8: III. Allegro
track: Oboe Concerto in D Minor, Op. 9 No. 2: III. Allegro
track: Concerto for 2 Oboes in C Major, Op. 9 No. 9: I. Allegro
track: Concerto for 2 Oboes in F Major, Op. 9 No. 3: I. Allegro
track: Concerto for 2 Oboes in C Major, Op. 9 No. 9: II. Adagio, non troppo
track: Concerto for 2 Oboes in F Major, Op. 9 No. 3: II. Adagio
track: Concerto for 2 Oboes in C Major, Op. 9 No. 9: III. Allegro
track: Concerto for 2 Oboes in F Major, Op. 9 No. 3: III. Allegro
track: Concerto a 5 in F, Op. 9, No. 10 for Violin, Strings, and Continuo - Rev. Giegling: 1. Allegro
track: Concerto a 5 in A ,Op. 9, No. 4 for Violin, Strings, and Continuo - Rev. Giegling: 1. Allegro
track: Concerto a 5 in A ,Op. 9, No. 4 for Violin, Strings, and Continuo - Rev. Giegling: 2. Adagio
track: Concerto a 5 in F, Op. 9, No. 10 for Violin, Strings, and Continuo - Rev. Giegling: 2. Adagio
track: Concerto a 5 in A ,Op. 9, No. 4 for Violin, Strings, and Continuo - Rev. Giegling: 3. Allegro
track: Concerto a 5 in F, Op. 9, No. 10 for Violin, Strings, and Continuo - Rev. Giegling: 3. Allegro
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track: Concerto a 5 in B-Flat Major, Op. 9, No. 11 for Oboe, Strings, and Continuo: 1. Allegro
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track: Concerto a 5 in B-Flat Major, Op. 9, No. 11 for Oboe, Strings, and Continuo: 3. Allegro
track: Concerto a 5 in G, Op. 9, No. 6 for 2 Oboes, Strings, and Continuo - Rev. Giegling: 1. Allegro
track: Concerto a 5 in D, Op. 9, No. 12 for 2 Oboes, Strings,and Continuo - Rev. Giegling: 1. Allegro
track: Concerto a 5 in G, Op. 9, No. 6 for 2 Oboes, Strings, and Continuo - Rev. Giegling: 2. Adagio
track: Concerto a 5 in D, Op. 9, No. 12 for 2 Oboes, Strings,and Continuo - Rev. Giegling: 2. Adagio
track: Concerto a 5 in G, Op. 9, No. 6 for 2 Oboes, Strings, and Continuo - Rev. Giegling: 3. Allegro
track: Concerto a 5 in D, Op. 9, No. 12 for 2 Oboes, Strings,and Continuo - Rev. Giegling: 3. Allegro
track: Adagio for Strings and Organ in G minor

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date published: 2026-07-31T08:26:41Z

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Concerto a 5 in B flat, Op. 9, No. 1 for Violin, Strings, and Continuo - Rev. Giegling: 2. Adagio
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Concerto a 5 in D, Op. 9, No. 7 for Violin, Strings, and Continuo - Rev. Giegling: 3. Allegro
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Concerto a 5 in B flat, Op. 9, No. 1 for Violin, Strings, and Continuo - Rev. Giegling: 3. Allegro
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Oboe Concerto in G Minor, Op. 9 No. 8: I. Allegro
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  date published: 2026-07-08T03:20:19Z
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Oboe Concerto in D Minor, Op. 9 No. 2: I. Allegro e non presto
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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 G Minor, Op. 9 No. 8: II. Adagio
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  date published: 2026-07-30T07:48:45Z
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Oboe Concerto in D Minor, Op. 9 No. 2: II. Adagio
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Oboe Concerto in G Minor, Op. 9 No. 8: III. Allegro
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  date published: 2026-07-08T03:20:19Z
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Oboe Concerto in D Minor, Op. 9 No. 2: III. Allegro
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Concerto for 2 Oboes in C Major, Op. 9 No. 9: I. Allegro
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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: 2026-07-31T06:42:11Z
audio: Concerto for 2 Oboes in C Major, Op. 9 No. 9: I. Allegro
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Concerto for 2 Oboes in F Major, Op. 9 No. 3: I. Allegro
type: MusicRecording
duration: PT4M54S
duration ms: 294000
explicit: false
by artist: Tomaso Albinoni
by artist: Heinz Holliger
by artist: Maurice Bourgue
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: The Complete Concertos/Adagio for Organ & Strings
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genre: classical
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Concerto for 2 Oboes in F Major, Op. 9 No. 3: I. Allegro
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Concerto for 2 Oboes in C Major, Op. 9 No. 9: II. Adagio, non troppo
type: MusicRecording
duration: PT3M16S
duration ms: 196000
explicit: false
by artist: Tomaso Albinoni
by artist: Heinz Holliger
by artist: Maurice Bourgue
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: The Complete Concertos/Adagio for Organ & Strings
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genre: classical
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Concerto for 2 Oboes in C Major, Op. 9 No. 9: II. Adagio, non troppo
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Concerto for 2 Oboes in F Major, Op. 9 No. 3: II. Adagio
type: MusicRecording
duration: PT3M8S
duration ms: 188000
explicit: false
by artist: Tomaso Albinoni
by artist: Heinz Holliger
by artist: Maurice Bourgue
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: The Complete Concertos/Adagio for Organ & Strings
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genre: classical
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
audio: Concerto for 2 Oboes in F Major, Op. 9 No. 3: II. Adagio
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Concerto for 2 Oboes in C Major, Op. 9 No. 9: III. Allegro
type: MusicRecording
duration: PT3M37S
duration ms: 217000
explicit: false
by artist: Tomaso Albinoni
by artist: Heinz Holliger
by artist: Maurice Bourgue
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: The Complete Concertos/Adagio for Organ & Strings
  type: MusicAlbum
  date published: 1997-01-01
genre: classical
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T18:23:33Z
audio: Concerto for 2 Oboes in C Major, Op. 9 No. 9: III. Allegro
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Concerto for 2 Oboes in F Major, Op. 9 No. 3: III. Allegro
type: MusicRecording
duration: PT3M48S
duration ms: 228000
explicit: false
by artist: Tomaso Albinoni
by artist: Heinz Holliger
by artist: Maurice Bourgue
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: The Complete Concertos/Adagio for Organ & Strings
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genre: classical
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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
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  date published: 2026-07-08T03:20:19Z
audio: Concerto for 2 Oboes in F Major, Op. 9 No. 3: III. Allegro
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Concerto a 5 in F, Op. 9, No. 10 for Violin, Strings, and Continuo - Rev. Giegling: 1. Allegro
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duration: PT3M39S
duration ms: 219000
explicit: false
by artist: Tomaso Albinoni
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by artist: Maria Teresa Garatti
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genre: classical
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T16:33:26Z
audio: Concerto a 5 in F, Op. 9, No. 10 for Violin, Strings, and Continuo - Rev. Giegling: 1. Allegro
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Concerto a 5 in A ,Op. 9, No. 4 for Violin, Strings, and Continuo - Rev. Giegling: 1. Allegro
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by artist: Felix Ayo
by artist: I Musici
by artist: Maria Teresa Garatti
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
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Concerto a 5 in A ,Op. 9, No. 4 for Violin, Strings, and Continuo - Rev. Giegling: 2. Adagio
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by artist: I Musici
by artist: Maria Teresa Garatti
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T14:18:56Z
audio: Concerto a 5 in A ,Op. 9, No. 4 for Violin, Strings, and Continuo - Rev. Giegling: 2. Adagio
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Concerto a 5 in F, Op. 9, No. 10 for Violin, Strings, and Continuo - Rev. Giegling: 2. Adagio
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duration: PT4M5S
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explicit: false
by artist: Tomaso Albinoni
by artist: Felix Ayo
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: The Complete Concertos/Adagio for Organ & Strings
  type: MusicAlbum
  date published: 1997-01-01
genre: classical
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T19:11:09Z
audio: Concerto a 5 in F, Op. 9, No. 10 for Violin, Strings, and Continuo - Rev. Giegling: 2. Adagio
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Concerto a 5 in A ,Op. 9, No. 4 for Violin, Strings, and Continuo - Rev. Giegling: 3. Allegro
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by artist: Felix Ayo
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: The Complete Concertos/Adagio for Organ & Strings
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genre: classical
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Concerto a 5 in A ,Op. 9, No. 4 for Violin, Strings, and Continuo - Rev. Giegling: 3. Allegro
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Concerto a 5 in F, Op. 9, No. 10 for Violin, Strings, and Continuo - Rev. Giegling: 3. Allegro
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by artist: Tomaso Albinoni
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by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: The Complete Concertos/Adagio for Organ & Strings
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genre: classical
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:39:04Z
audio: Concerto a 5 in F, Op. 9, No. 10 for Violin, Strings, and Continuo - Rev. Giegling: 3. Allegro
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Concerto a 5 in C Major, Op. 9, No. 5 for Oboe, Strings, and Continuo: 1. Allegro
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explicit: false
by artist: Tomaso Albinoni
by artist: Heinz Holliger
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: The Complete Concertos/Adagio for Organ & Strings
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genre: classical
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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
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  date published: 2026-07-30T14:36:16Z
audio: Concerto a 5 in C Major, Op. 9, No. 5 for Oboe, Strings, and Continuo: 1. Allegro
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Concerto a 5 in B-Flat Major, Op. 9, No. 11 for Oboe, Strings, and Continuo: 1. Allegro
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duration: PT4M26S
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explicit: false
by artist: Tomaso Albinoni
by artist: Heinz Holliger
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: The Complete Concertos/Adagio for Organ & Strings
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genre: classical
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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 a 5 in C Major, Op. 9, No. 5 for Oboe, Strings, and Continuo: 2. Adagio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T08:26:41Z
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Concerto a 5 in B-Flat Major, Op. 9, No. 11 for Oboe, Strings, and Continuo: 2. Adagio
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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 a 5 in C Major, Op. 9, No. 5 for Oboe, Strings, and Continuo: 3. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T22:27:30Z
audio: Concerto a 5 in C Major, Op. 9, No. 5 for Oboe, Strings, and Continuo: 3. Allegro
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Concerto a 5 in B-Flat Major, Op. 9, No. 11 for Oboe, Strings, and Continuo: 3. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T13:04:34Z
audio: Concerto a 5 in B-Flat Major, Op. 9, No. 11 for Oboe, Strings, and Continuo: 3. Allegro
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Concerto a 5 in G, Op. 9, No. 6 for 2 Oboes, Strings, and Continuo - Rev. Giegling: 1. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Concerto a 5 in G, Op. 9, No. 6 for 2 Oboes, Strings, and Continuo - Rev. Giegling: 1. Allegro
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Concerto a 5 in D, Op. 9, No. 12 for 2 Oboes, Strings,and Continuo - Rev. Giegling: 1. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T13:04:34Z
audio: Concerto a 5 in D, Op. 9, No. 12 for 2 Oboes, Strings,and Continuo - Rev. Giegling: 1. Allegro
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Concerto a 5 in G, Op. 9, No. 6 for 2 Oboes, Strings, and Continuo - Rev. Giegling: 2. Adagio
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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/NLA506700347
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 0x7101ec6c6d551e6c0779411da77a8839f3e02581f5d3463102e05610b5bb5bfd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506700347.
  date published: 2026-07-08T03:20:19Z
audio: Concerto a 5 in G, Op. 9, No. 6 for 2 Oboes, Strings, and Continuo - Rev. Giegling: 2. Adagio
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  additional property: Valence (Positivity)
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Concerto a 5 in D, Op. 9, No. 12 for 2 Oboes, Strings,and Continuo - Rev. Giegling: 2. Adagio
type: MusicRecording
duration: PT2M47S
duration ms: 167000
explicit: false
by artist: Tomaso Albinoni
by artist: Heinz Holliger
by artist: Maurice Bourgue
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: The Complete Concertos/Adagio for Organ & Strings
  type: MusicAlbum
  date published: 1997-01-01
genre: classical
isrc code: NLA506700122
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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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
  value: https://blockstream.info/api/block-height/960473
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506700122
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T22:27:44Z
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 0xcf056a39ae109e2b7a31bdca31473a4af80fba828667c2d8f4da0ebb2da6582a. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NLA506700122.
  date published: 2026-07-31T22:27:44Z
audio: Concerto a 5 in D, Op. 9, No. 12 for 2 Oboes, Strings,and Continuo - Rev. Giegling: 2. Adagio
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Concerto a 5 in G, Op. 9, No. 6 for 2 Oboes, Strings, and Continuo - Rev. Giegling: 3. Allegro
type: MusicRecording
duration: PT3M7S
duration ms: 187000
explicit: false
by artist: Tomaso Albinoni
by artist: Heinz Holliger
by artist: Maurice Bourgue
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: The Complete Concertos/Adagio for Organ & Strings
  type: MusicAlbum
  date published: 1997-01-01
genre: classical
isrc code: NLA506700348
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/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506700348
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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  date published: 2026-07-08T03:20:19Z
audio: Concerto a 5 in G, Op. 9, No. 6 for 2 Oboes, Strings, and Continuo - Rev. Giegling: 3. Allegro
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Concerto a 5 in D, Op. 9, No. 12 for 2 Oboes, Strings,and Continuo - Rev. Giegling: 3. Allegro
type: MusicRecording
duration: PT1M30S
duration ms: 90000
explicit: false
by artist: Tomaso Albinoni
by artist: Heinz Holliger
by artist: Maurice Bourgue
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: The Complete Concertos/Adagio for Organ & Strings
  type: MusicAlbum
  date published: 1997-01-01
genre: classical
isrc code: NLA506700123
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/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506700123
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 0xa355e2200dfccd8cfd3a07680dea55cbdc00146ba2c7436c5f781c29ef0ba78c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506700123.
  date published: 2026-07-08T03:20:19Z
audio: Concerto a 5 in D, Op. 9, No. 12 for 2 Oboes, Strings,and Continuo - Rev. Giegling: 3. 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
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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
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
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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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  additional property: Mode Name
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Adagio for Strings and Organ in G minor
type: MusicRecording
duration: PT6M58S
duration ms: 418000
explicit: false
by artist: Remo Giazotto
by artist: Maria Teresa Garatti
by artist: I Musici
in album: Albinoni: The Complete Concertos/Adagio for Organ & Strings
  type: MusicAlbum
  date published: 1997-01-01
genre: classical
isrc code: NLA506000138
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T03:03:38+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x101b2fc32ec70dbeb9d8e44e137c95ac455b4eed4eb6cce4cf12da0127385946
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506000138
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0x101b2fc32ec70dbeb9d8e44e137c95ac455b4eed4eb6cce4cf12da0127385946. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLA506000138.
  date published: 2026-06-13T13:32:09Z
audio: Adagio for Strings and Organ in G minor
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.224
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.165
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.917
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.856
  additional property: Liveness
    type: PropertyValue
    value: 0.146
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.035
  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Vivaldi: 12 Concerti Op.8
type: MusicAlbum
date published: 1990-01-01
track: Concerto for Violin and Strings in D minor , Op. 8/7 , RV 242: 1. Allegro
  type: MusicRecording
  duration: PT3M8S
  duration ms: 188000
  explicit: false
  by artist: Antonio Vivaldi
  by artist: Felix Ayo
  by artist: I Musici
  in album: Vivaldi: 12 Concerti Op.8
    type: MusicAlbum
    date published: 1990-01-01
  genre: classical
  genre: early-music
  genre: baroque
  genre: concerto
  isrc code: NLA506100269
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T08:24:26+00:00
  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x8e444eff87b0997502018872df9efa2dd71f6e2081b418abd5c1eab80ed37e9d
  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/NLA506100269
  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 0x8e444eff87b0997502018872df9efa2dd71f6e2081b418abd5c1eab80ed37e9d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506100269.
    date published: 2026-07-08T03:20:19Z
  audio: Concerto for Violin and Strings in D minor , Op. 8/7 , RV 242: 1. 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
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    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
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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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track: Violin Concerto in E Major, Op. 8, No. 1, RV 269 "La primavera": II. Largo
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  duration: PT2M58S
  duration ms: 178000
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  by artist: Felix Ayo
  by artist: I Musici
  in album: Vivaldi: 12 Concerti Op.8
    type: MusicAlbum
    date published: 1990-01-01
  genre: classical
  genre: early-music
  genre: baroque
  genre: concerto
  isrc code: NLA505900173
  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA505900173
  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
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    date published: 2026-07-08T03:20:19Z
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  subject of: OpenTimestamps Proof of Existence
  audio: Violin Concerto in G Minor, Op. 8, No. 2, RV 315 "L'estate": I. Allegro non molto - Allegro
track: Violin Concerto in G Minor, Op. 8, No. 2, RV 315 "L'estate": III. Presto. Tempo impetuoso d'estate
track: Concerto for Violin and Strings in F minor, Op. 8, No. 4, RV 297 "L'inverno": 1. Allegro non molto
track: Concerto for Violin and Strings in B flat , Op. 8/10 , RV 362 "La caccia": 2. Adagio
track: Concerto for Violin and Strings in E flat, Op. 8/5 , RV 253 "La tempesta di mare": 1. (Allegro e) presto
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date published: 2026-07-08T03:22:41Z

Violin Concerto in G Minor, Op. 8, No. 2, RV 315 "L'estate": I. Allegro non molto - Allegro
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Violin Concerto in G Minor, Op. 8, No. 2, RV 315 "L'estate": III. Presto. Tempo impetuoso d'estate
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Violin Concerto in G Minor, Op. 8, No. 2, RV 315 "L'estate": III. Presto. Tempo impetuoso d'estate
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Concerto for Violin and Strings in F minor, Op. 8, No. 4, RV 297 "L'inverno": 1. Allegro non molto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Concerto for Violin and Strings in F minor, Op. 8, No. 4, RV 297 "L'inverno": 1. Allegro non molto
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Concerto for Violin and Strings in B flat , Op. 8/10 , RV 362 "La caccia": 2. Adagio
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by artist: Felix Ayo
by artist: I Musici
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Concerto for Violin and Strings in B flat , Op. 8/10 , RV 362 "La caccia": 2. Adagio
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Concerto for Violin and Strings in E flat, Op. 8/5 , RV 253 "La tempesta di mare": 1. (Allegro e) presto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Concerto for Violin and Strings in E flat, Op. 8/5 , RV 253 "La tempesta di mare": 1. (Allegro e) presto
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Concerto for Violin and Strings in E flat, Op. 8/5 , RV 253 "La tempesta di mare": 2. Largo
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:59:18Z
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    date published: 2026-07-08T03:20:19Z
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track: Concerto a 5 in D, Op. 9, No. 7 for Violin, Strings, and Continuo - Rev. Giegling: 3. Allegro
track: Concerto a 5 in F, Op. 9, No. 10 for Violin, Strings, and Continuo - Rev. Giegling: 1. Allegro
track: Concerto a 5 in F, Op. 9, No. 10 for Violin, Strings, and Continuo - Rev. Giegling: 2. Adagio
track: Concerto a 5 in F, Op. 9, No. 10 for Violin, Strings, and Continuo - Rev. Giegling: 3. Allegro
track: Concerto a 5 in D, Op. 9, No. 12 for 2 Oboes, Strings,and Continuo - Rev. Giegling: 1. Allegro
track: Concerto a 5 in D, Op. 9, No. 12 for 2 Oboes, Strings,and Continuo - Rev. Giegling: 2. Adagio
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Concerto a 5 in A ,Op. 9, No. 4 for Violin, Strings, and Continuo - Rev. Giegling: 1. Allegro
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Concerto a 5 in A ,Op. 9, No. 4 for Violin, Strings, and Continuo - Rev. Giegling: 2. Adagio
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Concerto a 5 in A ,Op. 9, No. 4 for Violin, Strings, and Continuo - Rev. Giegling: 3. Allegro
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Concerto a 5 in G, Op. 9, No. 6 for 2 Oboes, Strings, and Continuo - Rev. Giegling: 1. Allegro
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duration: PT3M47S
duration ms: 227000
explicit: false
by artist: Tomaso Albinoni
by artist: Heinz Holliger
by artist: Maurice Bourgue
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: 6 Concerti from Op. 9
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  date published: 1968-01-01
genre: classical
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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: 2026-07-08T03:20:19Z
audio: Concerto a 5 in G, Op. 9, No. 6 for 2 Oboes, Strings, and Continuo - Rev. Giegling: 1. Allegro
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Concerto a 5 in G, Op. 9, No. 6 for 2 Oboes, Strings, and Continuo - Rev. Giegling: 2. Adagio
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duration: PT3M16S
duration ms: 196000
explicit: false
by artist: Tomaso Albinoni
by artist: Heinz Holliger
by artist: Maurice Bourgue
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: 6 Concerti from Op. 9
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  date published: 1968-01-01
genre: classical
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Concerto a 5 in G, Op. 9, No. 6 for 2 Oboes, Strings, and Continuo - Rev. Giegling: 2. Adagio
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Concerto a 5 in G, Op. 9, No. 6 for 2 Oboes, Strings, and Continuo - Rev. Giegling: 3. Allegro
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duration: PT3M10S
duration ms: 190000
explicit: false
by artist: Tomaso Albinoni
by artist: Heinz Holliger
by artist: Maurice Bourgue
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: 6 Concerti from Op. 9
  type: MusicAlbum
  date published: 1968-01-01
genre: classical
isrc code: NLA506700348
additional property: CopyrightID
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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
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  date published: 2026-07-08T03:20:19Z
audio: Concerto a 5 in G, Op. 9, No. 6 for 2 Oboes, Strings, and Continuo - Rev. Giegling: 3. Allegro
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Concerto a 5 in D, Op. 9, No. 7 for Violin, Strings, and Continuo - Rev. Giegling: 1. Allegro
type: MusicRecording
duration: PT3M44S
duration ms: 224000
explicit: false
by artist: Tomaso Albinoni
by artist: Felix Ayo
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: 6 Concerti from Op. 9
  type: MusicAlbum
  date published: 1968-01-01
genre: classical
isrc code: NLA506700349
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efbde0a111795eb699f57a67a191f60e57ca98ecb2d14fbca894251d188f39b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506700349.
  date published: 2026-07-31T15:20:15Z
audio: Concerto a 5 in D, Op. 9, No. 7 for Violin, Strings, and Continuo - Rev. Giegling: 1. Allegro
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Concerto a 5 in D, Op. 9, No. 7 for Violin, Strings, and Continuo - Rev. Giegling: 3. Allegro
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duration: PT3M4S
duration ms: 184000
explicit: false
by artist: Tomaso Albinoni
by artist: Felix Ayo
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: 6 Concerti from Op. 9
  type: MusicAlbum
  date published: 1968-01-01
genre: classical
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additional property: OTSBitcoinBlockVerifyURL
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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
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  date published: 2026-07-08T03:20:19Z
audio: Concerto a 5 in D, Op. 9, No. 7 for Violin, Strings, and Continuo - Rev. Giegling: 3. Allegro
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Concerto a 5 in F, Op. 9, No. 10 for Violin, Strings, and Continuo - Rev. Giegling: 1. Allegro
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duration: PT3M44S
duration ms: 224000
explicit: false
by artist: Tomaso Albinoni
by artist: Felix Ayo
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: 6 Concerti from Op. 9
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genre: classical
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additional property: CopyrightID
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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
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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 0x1527c85597a93ae622cfcf6e37d6566570b53ea51aac17678ced8fac6cab3099. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/NLA506700118.
  date published: 2026-07-31T23:51:35Z
audio: Concerto a 5 in F, Op. 9, No. 10 for Violin, Strings, and Continuo - Rev. Giegling: 1. Allegro
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Concerto a 5 in F, Op. 9, No. 10 for Violin, Strings, and Continuo - Rev. Giegling: 2. Adagio
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by artist: Felix Ayo
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: 6 Concerti from Op. 9
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genre: classical
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T19:35:34Z
audio: Concerto a 5 in F, Op. 9, No. 10 for Violin, Strings, and Continuo - Rev. Giegling: 2. Adagio
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Concerto a 5 in F, Op. 9, No. 10 for Violin, Strings, and Continuo - Rev. Giegling: 3. Allegro
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duration: PT3M35S
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by artist: Tomaso Albinoni
by artist: Felix Ayo
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: 6 Concerti from Op. 9
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  date published: 1968-01-01
genre: classical
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Concerto a 5 in F, Op. 9, No. 10 for Violin, Strings, and Continuo - Rev. Giegling: 3. Allegro
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Concerto a 5 in D, Op. 9, No. 12 for 2 Oboes, Strings,and Continuo - Rev. Giegling: 1. Allegro
type: MusicRecording
duration: PT3M16S
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explicit: false
by artist: Tomaso Albinoni
by artist: Heinz Holliger
by artist: Maurice Bourgue
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: 6 Concerti from Op. 9
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genre: classical
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:20:15Z
audio: Concerto a 5 in D, Op. 9, No. 12 for 2 Oboes, Strings,and Continuo - Rev. Giegling: 1. Allegro
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Concerto a 5 in D, Op. 9, No. 12 for 2 Oboes, Strings,and Continuo - Rev. Giegling: 2. Adagio
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duration: PT2M48S
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explicit: false
by artist: Tomaso Albinoni
by artist: Heinz Holliger
by artist: Maurice Bourgue
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: 6 Concerti from Op. 9
  type: MusicAlbum
  date published: 1968-01-01
genre: classical
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T13:09:35Z
audio: Concerto a 5 in D, Op. 9, No. 12 for 2 Oboes, Strings,and Continuo - Rev. Giegling: 2. Adagio
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Concerto a 5 in D, Op. 9, No. 12 for 2 Oboes, Strings,and Continuo - Rev. Giegling: 3. Allegro
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explicit: false
by artist: Tomaso Albinoni
by artist: Heinz Holliger
by artist: Maurice Bourgue
by artist: I Musici
by artist: Maria Teresa Garatti
in album: Albinoni: 6 Concerti from Op. 9
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genre: classical
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Concerto a 5 in D, Op. 9, No. 12 for 2 Oboes, Strings,and Continuo - Rev. Giegling: 3. Allegro
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Handel: Concerto grosso, Op. 6 No. 4 - Bach: Concerto pour piano No. 5 - Haydn: Concerto pour violon, Hob. VIIa:1 (Stereo Version)
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date published: 1963-01-01

Handel: Concerto grosso, Op. 6 No. 4 - Bach: Concerto pour piano No. 5 - Haydn: Concerto pour violon, Hob. VIIa:1 (Mono Version)
type: MusicAlbum
date published: 1963-01-01

Vivaldi Edition Vol.2 - Op.7-12
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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track: Concerto for Oboe and Strings in B flat , Op. 7/1 , RV 465: 2. Adagio
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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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track: Concerto for Violin and Strings in C , Op. 7/2 , RV 188: 1. Allegro
track: Concerto for Violin and Strings in G , Op. 7/8 , RV 299: 1. Allegro assai
track: Concerto for Violin and Strings in C , Op. 7/2 , RV 188: 2. Largo
track: Concerto for Violin and Strings in G , Op. 7/8 , RV 299: 2. Largo, cantabile
track: Concerto for Violin and Strings in C , Op. 7/2 , RV 188: 3. Allegro
track: Concerto for Violin and Strings in G , Op. 7/8 , RV 299: 3. Allegro
track: Concerto for Violin and Strings in G minor , Op. 7/3 , RV 326: 1. Allegro
track: Concerto for Violin and Strings in G minor , Op. 7/3 , RV 326: 2. Grave
track: Concerto for Violin and Strings in G minor , Op. 7/3 , RV 326: 3. Presto
track: Concerto for Violin and Strings in A minor , Op. 7/4 , RV 354: 1. Allegro
track: Concerto for Violin and Strings in F minor, Op. 8, No. 4, RV 297 "L'inverno": 1. Allegro non molto
track: Concerto for Violin and Strings in A minor , Op. 7/4 , RV 354: 2. Adagio
track: Concerto for Violin and Strings in A minor , Op. 7/4 , RV 354: 3. Allegro
track: Concerto for Violin and Strings in F , Op. 7/5 , RV 285a: 1. Allegro
track: Concerto for Violin and Strings in D , Op. 7/11 , RV 208a: 1. Allegro
track: Concerto for Violin and Strings in B flat , Op. 7/6 , RV 374: 2. Largo
track: Concerto for Violin and Strings in B flat , Op. 7/6 , RV 374: 3. Allegro

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Concerto for Violin and Strings in C , Op. 7/2 , RV 188: 1. Allegro
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Concerto for Violin and Strings in G , Op. 7/8 , RV 299: 1. Allegro assai
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  date published: 2026-07-08T03:20:19Z
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Concerto for Violin and Strings in C , Op. 7/2 , RV 188: 2. Largo
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Concerto for Violin and Strings in G , Op. 7/8 , RV 299: 2. Largo, cantabile
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  date published: 2026-07-08T03:20:19Z
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Concerto for Violin and Strings in C , Op. 7/2 , RV 188: 3. Allegro
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  date published: 2026-07-29T21:09:47Z
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Concerto for Violin and Strings in G , Op. 7/8 , RV 299: 3. Allegro
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  date published: 2026-08-01T00:40:43Z
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Concerto for Violin and Strings in G minor , Op. 7/3 , RV 326: 1. 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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Concerto for Violin and Strings in G minor , Op. 7/3 , RV 326: 2. Grave
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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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Concerto for Violin and Strings in G minor , Op. 7/3 , RV 326: 3. Presto
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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 Violin and Strings in A minor , Op. 7/4 , RV 354: 1. Allegro
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Concerto for Violin and Strings in F minor, Op. 8, No. 4, RV 297 "L'inverno": 1. Allegro non molto
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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 for Violin and Strings in A minor , Op. 7/4 , RV 354: 2. Adagio
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subject of: OpenTimestamps Proof of Existence
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Concerto for Violin and Strings in A minor , Op. 7/4 , RV 354: 3. Allegro
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Concerto for Violin and Strings in F , Op. 7/5 , RV 285a: 1. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T23:30:38Z
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Concerto for Violin and Strings in D , Op. 7/11 , RV 208a: 1. Allegro
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  date published: 2026-07-31T12:24:41Z
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Concerto for Violin and Strings in B flat , Op. 7/6 , RV 374: 2. Largo
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  date published: 2026-07-31T19:53:13Z
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Concerto for Violin and Strings in B flat , Op. 7/6 , RV 374: 3. Allegro
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  date published: 2026-08-01T00:15:43Z
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  audio: Concerto grosso in F, Op. 6, No. 9 - Rev. Vittorio Negri (1923 - ): 3. Corrente: Vivace
track: Concerto grosso in F, Op. 6, No. 9 - Rev. Vittorio Negri (1923 - ): 4. Gavotta: Allegro
track: Concerto grosso in F, Op. 6, No. 9 - Rev. Vittorio Negri (1923 - ): 5. Adagio
track: Concerto grosso in F, Op. 6, No. 9 - Rev. Vittorio Negri (1923 - ): 6. Minuetto: Vivace
track: 12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 9 in B flat major: 1. Allegro
track: 12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 9 in B flat major: 2. Largo e spiccato
track: 12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 9 in B flat major: 3. Allegro
track: 12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 10 in G major, RV300: 1. Allegro molto
track: 12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 10 in G major, RV300: 2. Largo cantabile
track: 12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 10 in G major, RV300: 3. Allegro
track: 12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 11 in C minor, RV198a: 1. Allegro
track: 12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 11 in C minor, RV198a: 2. Adagio
track: 12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 11 in C minor, RV198a: 3. Allegro
track: Concerto grosso in D, Op. 6, No. 1 - Rev. Vittorio Negri (1923- ): 1 Largo - Allegro
track: Concerto grosso in D, Op. 6, No. 1 - Rev. Vittorio Negri (1923- ): 2. Largo - Allegro
track: Concerto grosso in D, Op. 6, No. 1 - Rev. Vittorio Negri (1923- ): 3. Largo
track: Concerto grosso in D, Op. 6, No. 1 - Rev. Vittorio Negri (1923- ): 4. Largo
track: Concerto grosso in D, Op. 6, No. 1 - Rev. Vittorio Negri (1923- ): 5. Allegro
track: Concerto grosso in F, Op. 6, No. 2 - Rev. Vittorio Negri (1923- ): 1. Vivace - Allegro - Adagio - Vivace - Allegro - Largo andante
track: Concerto grosso in F, Op. 6, No. 2 - Rev. Vittorio Negri (1923- ): 2. Allegro
track: Concerto grosso in F, Op. 6, No. 2 - Rev. Vittorio Negri (1923- ): 3. Grave - Andante largo
track: Concerto grosso in F, Op. 6, No. 2 - Rev. Vittorio Negri (1923- ): 4. Allegro
track: Concerto grosso in C, Op. 6, No. 10 - Rev. by Vittorio Negri (1923 - ): 1. Preludio (Andante largo)
track: Concerto grosso in C, Op. 6, No. 10 - Rev. by Vittorio Negri (1923 - ): 2. Allemanda (Allegro)
track: Concerto grosso in C, Op. 6, No. 10 - Rev. by Vittorio Negri (1923 - ): 3. Adagio
track: Concerto grosso in C, Op. 6, No. 10 - Rev. by Vittorio Negri (1923 - ): 4. Corrente (Vivace)
track: Concerto grosso in C, Op. 6, No. 10 - Rev. by Vittorio Negri (1923 - ): 5. Allegro
track: Concerto grosso in C, Op. 6, No. 10 - Rev. by Vittorio Negri (1923 - ): 6. Minuetto (Vivace)
track: Concerto a 5 in B flat, Op. 9, No. 1 for Violin, Strings, and Continuo - Rev. Giegling: 1. Allegro
track: Concerto a 5 in B flat, Op. 9, No. 1 for Violin, Strings, and Continuo - Rev. Giegling: 2. Adagio
track: Concerto a 5 in B flat, Op. 9, No. 1 for Violin, Strings, and Continuo - Rev. Giegling: 3. Allegro
track: Concerto a 5 in A ,Op. 9, No. 4 for Violin, Strings, and Continuo - Rev. Giegling: 1. Allegro
track: Concerto a 5 in A ,Op. 9, No. 4 for Violin, Strings, and Continuo - Rev. Giegling: 2. Adagio

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Concerto grosso in F, Op. 6, No. 9 - Rev. Vittorio Negri (1923 - ): 3. Corrente: Vivace
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Concerto grosso in F, Op. 6, No. 9 - Rev. Vittorio Negri (1923 - ): 5. Adagio
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Concerto grosso in F, Op. 6, No. 9 - Rev. Vittorio Negri (1923 - ): 6. Minuetto: Vivace
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12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 9 in B flat major: 1. Allegro
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: 12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 9 in B flat major: 1. Allegro
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12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 9 in B flat major: 2. Largo e spiccato
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by artist: Felix Ayo
by artist: Anna Maria Cotogni
by artist: Enzo Altobelli
by artist: Maria Teresa Garatti
by artist: I Musici
in album: "Ayo - El Violín Barroco"
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  date published: 2025-06-12
genre: classical
genre: early-music
genre: baroque
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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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: 2026-07-02T03:30:09Z
audio: 12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 9 in B flat major: 2. Largo e spiccato
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12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 9 in B flat major: 3. Allegro
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explicit: false
by artist: Antonio Vivaldi
by artist: Felix Ayo
by artist: Anna Maria Cotogni
by artist: Enzo Altobelli
by artist: Maria Teresa Garatti
by artist: I Musici
in album: "Ayo - El Violín Barroco"
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  date published: 2025-06-12
genre: classical
genre: early-music
genre: baroque
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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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: 2026-07-02T03:30:09Z
audio: 12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 9 in B flat major: 3. Allegro
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12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 10 in G major, RV300: 1. Allegro molto
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duration: PT3M55S
duration ms: 235000
explicit: false
by artist: Antonio Vivaldi
by artist: Felix Ayo
by artist: Enzo Altobelli
by artist: Maria Teresa Garatti
by artist: I Musici
in album: "Ayo - El Violín Barroco"
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  date published: 2025-06-12
genre: classical
genre: early-music
genre: baroque
genre: concerto
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additional property: CopyrightID
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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
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  date published: 2026-07-02T03:30:09Z
audio: 12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 10 in G major, RV300: 1. Allegro molto
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12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 10 in G major, RV300: 2. Largo cantabile
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duration: PT2M53S
duration ms: 173000
explicit: false
by artist: Antonio Vivaldi
by artist: Felix Ayo
by artist: Enzo Altobelli
by artist: Maria Teresa Garatti
by artist: I Musici
in album: "Ayo - El Violín Barroco"
  type: MusicAlbum
  date published: 2025-06-12
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLA506400369
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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
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  date published: 2026-07-02T03:55:08Z
audio: 12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 10 in G major, RV300: 2. Largo cantabile
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12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 10 in G major, RV300: 3. Allegro
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duration: PT3M12S
duration ms: 192000
explicit: false
by artist: Antonio Vivaldi
by artist: Felix Ayo
by artist: Enzo Altobelli
by artist: Maria Teresa Garatti
by artist: I Musici
in album: "Ayo - El Violín Barroco"
  type: MusicAlbum
  date published: 2025-06-12
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLA506400370
additional property: CopyrightID
additional property: CopyrightStatus
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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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  date published: 2026-07-02T03:55:08Z
audio: 12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 10 in G major, RV300: 3. Allegro
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12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 11 in C minor, RV198a: 1. Allegro
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by artist: Antonio Vivaldi
by artist: Felix Ayo
by artist: Enzo Altobelli
by artist: Maria Teresa Garatti
by artist: I Musici
in album: "Ayo - El Violín Barroco"
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  date published: 2025-06-12
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: NLA506400371
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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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12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 11 in C minor, RV198a: 2. Adagio
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12 Violin Concertos, Op. 9 - "La cetra" / Concerto No. 11 in C minor, RV198a: 3. Allegro
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Concerto grosso in D, Op. 6, No. 1 - Rev. Vittorio Negri (1923- ): 1 Largo - Allegro
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  date published: 2026-07-02T03:55:08Z
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Concerto grosso in D, Op. 6, No. 1 - Rev. Vittorio Negri (1923- ): 2. Largo - Allegro
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Concerto grosso in D, Op. 6, No. 1 - Rev. Vittorio Negri (1923- ): 3. Largo
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Concerto grosso in D, Op. 6, No. 1 - Rev. Vittorio Negri (1923- ): 4. Largo
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Concerto grosso in D, Op. 6, No. 1 - Rev. Vittorio Negri (1923- ): 5. Allegro
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duration: PT2M6S
duration ms: 126240
explicit: false
by artist: Arcangelo Corelli
by artist: Felix Ayo
by artist: Arnaldo Apostoli
by artist: Enzo Altobelli
by artist: Maria Teresa Garatti
by artist: Guy Bovet
by artist: I Musici
in album: "Ayo - El Violín Barroco"
  type: MusicAlbum
  date published: 2025-06-12
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: concerto
isrc code: NLA506600493
additional property: CopyrightID
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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
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe788c07acfac72b0e2cf82164680f175c4a6231f9e2bd6c15e1228396a0bb5b5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506600493.
  date published: 2026-07-02T03:55:08Z
audio: Concerto grosso in D, Op. 6, No. 1 - Rev. Vittorio Negri (1923- ): 5. Allegro
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Concerto grosso in F, Op. 6, No. 2 - Rev. Vittorio Negri (1923- ): 1. Vivace - Allegro - Adagio - Vivace - Allegro - Largo andante
type: MusicRecording
duration: PT4M29S
duration ms: 269000
explicit: false
by artist: Arcangelo Corelli
by artist: Felix Ayo
by artist: Arnaldo Apostoli
by artist: Enzo Altobelli
by artist: Maria Teresa Garatti
by artist: Guy Bovet
by artist: I Musici
in album: "Ayo - El Violín Barroco"
  type: MusicAlbum
  date published: 2025-06-12
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: concerto
isrc code: NLA506600494
additional property: CopyrightID
additional property: CopyrightStatus
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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: 2026-07-02T03:55:08Z
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0134b0f076f2161664ac82ed373cb74c8ff565c1d9788727ba1555ab44dd208. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506600494.
  date published: 2026-07-02T03:55:08Z
audio: Concerto grosso in F, Op. 6, No. 2 - Rev. Vittorio Negri (1923- ): 1. Vivace - Allegro - Adagio - Vivace - Allegro - Largo andante
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Concerto grosso in F, Op. 6, No. 2 - Rev. Vittorio Negri (1923- ): 2. Allegro
type: MusicRecording
duration: PT1M52S
duration ms: 112000
explicit: false
by artist: Arcangelo Corelli
by artist: Felix Ayo
by artist: Arnaldo Apostoli
by artist: Enzo Altobelli
by artist: Maria Teresa Garatti
by artist: Guy Bovet
by artist: I Musici
in album: "Ayo - El Violín Barroco"
  type: MusicAlbum
  date published: 2025-06-12
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: concerto
isrc code: NLA506600495
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: 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/NLA506600495
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683750dc505b07783d7f1ce6958b7515251f1b6c19a10d2dfb18d83c7776ad72. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506600495.
  date published: 2026-07-02T03:55:08Z
audio: Concerto grosso in F, Op. 6, No. 2 - Rev. Vittorio Negri (1923- ): 2. Allegro
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Concerto grosso in F, Op. 6, No. 2 - Rev. Vittorio Negri (1923- ): 3. Grave - Andante largo
type: MusicRecording
duration: PT1M58S
duration ms: 118106
explicit: false
by artist: Arcangelo Corelli
by artist: Felix Ayo
by artist: Arnaldo Apostoli
by artist: Enzo Altobelli
by artist: Maria Teresa Garatti
by artist: Guy Bovet
by artist: I Musici
in album: "Ayo - El Violín Barroco"
  type: MusicAlbum
  date published: 2025-06-12
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: concerto
isrc code: NLA506600496
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-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506600496
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18dfaa13f30ffba510850213059ae4fac3990a37e8382abc41d18ac1a3c2b806. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506600496.
  date published: 2026-07-02T03:55:08Z
audio: Concerto grosso in F, Op. 6, No. 2 - Rev. Vittorio Negri (1923- ): 3. Grave - Andante largo
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Concerto grosso in F, Op. 6, No. 2 - Rev. Vittorio Negri (1923- ): 4. Allegro
type: MusicRecording
duration: PT2M11S
duration ms: 131893
explicit: false
by artist: Arcangelo Corelli
by artist: Felix Ayo
by artist: Arnaldo Apostoli
by artist: Enzo Altobelli
by artist: Maria Teresa Garatti
by artist: Guy Bovet
by artist: I Musici
in album: "Ayo - El Violín Barroco"
  type: MusicAlbum
  date published: 2025-06-12
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: concerto
isrc code: NLA506600497
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: 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
  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 0x1e52ad17ea5ed2a06ce3b1ce077ad874cba7823efd01e34f7f5be51f7f6f5b45. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506600497.
  date published: 2026-07-02T03:55:08Z
audio: Concerto grosso in F, Op. 6, No. 2 - Rev. Vittorio Negri (1923- ): 4. Allegro
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Concerto grosso in C, Op. 6, No. 10 - Rev. by Vittorio Negri (1923 - ): 1. Preludio (Andante largo)
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duration: PT2M36S
duration ms: 156000
explicit: false
by artist: Arcangelo Corelli
by artist: Felix Ayo
by artist: Arnaldo Apostoli
by artist: Enzo Altobelli
by artist: Maria Teresa Garatti
by artist: Marijke Smit Sibinga
by artist: I Musici
in album: "Ayo - El Violín Barroco"
  type: MusicAlbum
  date published: 2025-06-12
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: concerto
isrc code: NLA506600535
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/NLA506600535
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 0x34d989b65fc4dc441ff0ac64549685aff5b3909c66f35ab95748b4e710642895. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506600535.
  date published: 2026-07-02T03:55:08Z
audio: Concerto grosso in C, Op. 6, No. 10 - Rev. by Vittorio Negri (1923 - ): 1. Preludio (Andante largo)
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Concerto grosso in C, Op. 6, No. 10 - Rev. by Vittorio Negri (1923 - ): 2. Allemanda (Allegro)
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duration: PT3M0S
duration ms: 180000
explicit: false
by artist: Arcangelo Corelli
by artist: Felix Ayo
by artist: Arnaldo Apostoli
by artist: Enzo Altobelli
by artist: Maria Teresa Garatti
by artist: Marijke Smit Sibinga
by artist: I Musici
in album: "Ayo - El Violín Barroco"
  type: MusicAlbum
  date published: 2025-06-12
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: concerto
isrc code: NLA506600536
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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: Concerto grosso in C, Op. 6, No. 10 - Rev. by Vittorio Negri (1923 - ): 2. Allemanda (Allegro)
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Concerto grosso in C, Op. 6, No. 10 - Rev. by Vittorio Negri (1923 - ): 3. Adagio
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duration: PT1M15S
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by artist: Arcangelo Corelli
by artist: Felix Ayo
by artist: Arnaldo Apostoli
by artist: Enzo Altobelli
by artist: Maria Teresa Garatti
by artist: Marijke Smit Sibinga
by artist: I Musici
in album: "Ayo - El Violín Barroco"
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genre: early-music
genre: baroque
genre: italian-baroque
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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: Concerto grosso in C, Op. 6, No. 10 - Rev. by Vittorio Negri (1923 - ): 3. Adagio
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Concerto grosso in C, Op. 6, No. 10 - Rev. by Vittorio Negri (1923 - ): 4. Corrente (Vivace)
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by artist: Arcangelo Corelli
by artist: Felix Ayo
by artist: Arnaldo Apostoli
by artist: Enzo Altobelli
by artist: Maria Teresa Garatti
by artist: Marijke Smit Sibinga
by artist: I Musici
in album: "Ayo - El Violín Barroco"
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  date published: 2025-06-12
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Concerto grosso in C, Op. 6, No. 10 - Rev. by Vittorio Negri (1923 - ): 4. Corrente (Vivace)
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Concerto grosso in C, Op. 6, No. 10 - Rev. by Vittorio Negri (1923 - ): 5. Allegro
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by artist: Arcangelo Corelli
by artist: Felix Ayo
by artist: Arnaldo Apostoli
by artist: Enzo Altobelli
by artist: Maria Teresa Garatti
by artist: Marijke Smit Sibinga
by artist: I Musici
in album: "Ayo - El Violín Barroco"
  type: MusicAlbum
  date published: 2025-06-12
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: concerto
isrc code: NLA506600539
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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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  date published: 2026-07-02T03:55:08Z
audio: Concerto grosso in C, Op. 6, No. 10 - Rev. by Vittorio Negri (1923 - ): 5. Allegro
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Concerto grosso in C, Op. 6, No. 10 - Rev. by Vittorio Negri (1923 - ): 6. Minuetto (Vivace)
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by artist: Arcangelo Corelli
by artist: Felix Ayo
by artist: Arnaldo Apostoli
by artist: Enzo Altobelli
by artist: Maria Teresa Garatti
by artist: Marijke Smit Sibinga
by artist: I Musici
in album: "Ayo - El Violín Barroco"
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  date published: 2025-06-12
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Concerto grosso in C, Op. 6, No. 10 - Rev. by Vittorio Negri (1923 - ): 6. Minuetto (Vivace)
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Concerto a 5 in B flat, Op. 9, No. 1 for Violin, Strings, and Continuo - Rev. Giegling: 1. Allegro
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by artist: Maria Teresa Garatti
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genre: classical
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96068ab246dea5858010d8e11180ac4fce865e2506b7769b79223b60594a4d2a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506700034.
  date published: 2026-07-02T03:55:08Z
audio: Concerto a 5 in B flat, Op. 9, No. 1 for Violin, Strings, and Continuo - Rev. Giegling: 1. Allegro
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Concerto a 5 in B flat, Op. 9, No. 1 for Violin, Strings, and Continuo - Rev. Giegling: 2. Adagio
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  date published: 2026-07-02T16:51:38Z
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Concerto a 5 in B flat, Op. 9, No. 1 for Violin, Strings, and Continuo - Rev. Giegling: 3. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
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Concerto a 5 in A ,Op. 9, No. 4 for Violin, Strings, and Continuo - Rev. Giegling: 1. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T16:51:38Z
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Concerto a 5 in A ,Op. 9, No. 4 for Violin, Strings, and Continuo - Rev. Giegling: 2. Adagio
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