Ugo Orlandi
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description: Ugo Orlandi (born in Brescia, 1958) is a musicologist, a specialist in the history of music, a university professor and internationally renowned mandolinist virtuoso. Among worldwide musicians, profes
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subject of: OpenTimestamps Proof of Existence
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  date published: 2020-11-14
album: Ostern mit Klassik
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    subject of: OpenTimestamps Proof of Existence
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  track: Zadok the Priest, HWV 258: Zadok the Priest
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    subject of: OpenTimestamps Proof of Existence
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  track: Cantata No. 51, BWV. 51: Aria, Jauchzet Gott in allen Landen!
  track: Wir danken dir, Gott, wir danken dir, BWV 29: I. Sinfonia
  track: Goldberg Variations, BWV 988: Aria
  track: Flute Sonata in E-Flat Major, BWV 1031: II. Siciliano
  track: Concerto for 2 Mandolins in G Major, RV 532: I. Allegro
album: Study with Vivaldi
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album: Raffaele Calace: Le Opere Per Quartetto E Orchestra A Plettro
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album: Vivaldi: Classical Favourites
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album: Vivaldi - Saturday Evening
album: Vivaldi - Wednesday Evening
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track: Vivaldi: Concerto for Two Mandolins in G Major, RV 532: II. Andante

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Cantata No. 51, BWV. 51: Aria, Jauchzet Gott in allen Landen!
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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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Wir danken dir, Gott, wir danken dir, BWV 29: I. Sinfonia
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subject of: OpenTimestamps Proof of Existence
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Goldberg Variations, BWV 988: Aria
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T13:50:38Z
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Flute Sonata in E-Flat Major, BWV 1031: II. Siciliano
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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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  date published: 2026-07-30T00:16:15Z
audio: Flute Sonata in E-Flat Major, BWV 1031: II. Siciliano
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Concerto for 2 Mandolins in G Major, RV 532: I. Allegro
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duration: PT4M0S
duration ms: 240866
explicit: false
by artist: Antonio Vivaldi
by artist: Giovanni Scaramuzzino
by artist: Sonia Maurer
by artist: Fabio Biondi
by artist: Europa Galante
in album: Ostern mit Klassik
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  date published: 2020-04-08
popularity: 14
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: GBAYC0103446
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e7495d20a6513854de0eb39391eac041aa7c0a28a7633c3c5771251cb346a6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0103446 — a six-check JSON result.
  date published: 2026-07-02T03:30:09Z
audio: Concerto for 2 Mandolins in G Major, RV 532: I. Allegro
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Study with Vivaldi
type: MusicAlbum
date published: 2020-09-18
track: The Four Seasons, Violin Concerto No. 3 in F Major, RV 293 "Autumn": II. Adagio molto
  type: MusicRecording
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  explicit: false
  by artist: Antonio Vivaldi
  by artist: Arthur Davison
  by artist: Kenneth Sillito
  by artist: Virtuosi Of England
  in album: Study with Vivaldi
    type: MusicAlbum
    date published: 2020-09-18
  genre: classical
  genre: early-music
  genre: baroque
  genre: concerto
  isrc code: GBAYD7200053
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYD7200053
  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca46f98c2a509d642fd9fe485a57ff202ac8c1444fed24e0a71ec3b33a7b71d4. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T14:10:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYD7200053 — a six-check JSON result.
    date published: 2026-07-22T14:10:55Z
  audio: The Four Seasons, Violin Concerto No. 3 in F Major, RV 293 "Autumn": II. Adagio molto
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track: Sonata in D Minor, Op. 1 No. 12 'La Follia': I. Adagio
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  by artist: Giovanni Antonini
  by artist: Il Giardino Armonico
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    type: MusicAlbum
    date published: 2020-09-18
  genre: classical
  genre: early-music
  genre: baroque
  genre: concerto
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809177064
  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf00034300e43fe3b617d6fec7acf0e4ba2250618637b5af3d7370ac608bb30. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809177064 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
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    additional property: Danceability
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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The Italian Masters - A Complete Selection
type: MusicAlbum
date published: 2022-03-05

Raffaele Calace: Le Opere Per Quartetto E Orchestra A Plettro
type: MusicAlbum
date published: 1997-01-01

Serenata Veneziana with Mandolin
type: MusicAlbum
date published: 1999-01-01
track: Barcarola per mandolino
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    value: https://blockstream.info/api/block-height/960456
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITE011710548
  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc88ba31a0a02f11ef202f1c3cc001788620f737bad2c2b6da73b0b50c827da. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITE011710548 — a six-check JSON result.
    date published: 2026-07-31T19:53:57Z
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Valence (Positivity)
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Mandolin & Japan: Incontro Casuale
type: MusicAlbum
date published: 1999-01-01

Rapsodia Napoletana
type: MusicAlbum
date published: 2004-01-01

Vivaldi : Concerti per Mandolini
type: MusicAlbum
date published: 1984
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  duration: PT4M9S
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  by artist: Antonio Vivaldi
  by artist: Claudio Scimone
  by artist: Ugo Orlandi
  by artist: Dorina Frati
  by artist: I Soliste Veneti
  by artist: I Solisti Veneti
  in album: Vivaldi : Concerti per Mandolini
    type: MusicAlbum
    date published: 1984
  popularity: 5
  genre: classical
  genre: early-music
  genre: baroque
  genre: concerto
  isrc code: FRZ208306001
  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightChainExplorerURL
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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/FRZ208306001
  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8c7aa01d6e346d0c85c8c6af1050eb66b73f05f0b8341a35bdfe974e3570bc. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ208306001 — a six-check JSON result.
    date published: 2026-07-29T13:21:01Z
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    additional property: Mode (Major/Minor)
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  by artist: Antonio Vivaldi
  by artist: Claudio Scimone
  by artist: Ugo Orlandi
  by artist: Dorina Frati
  by artist: I Soliste Veneti
  by artist: I Solisti Veneti
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    date published: 1984
  popularity: 5
  genre: classical
  genre: early-music
  genre: baroque
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-30T08:30:10Z
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  by artist: Claudio Scimone
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  by artist: I Solisti Veneti
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  subject of: OpenTimestamps Proof of Existence
  audio: Vivaldi: Concerto for Two Mandolins in G Major, RV 532: III. Allegro
track: Vivaldi: Mandolin Concerto in C Major, RV 425: I. Allegro
track: Vivaldi: Mandolin Concerto in C Major, RV 425: II. Largo
track: Vivaldi: Mandolin Concerto in C Major, RV 425: III. Allegro
track: Vivaldi: Concerto for Two Violins in tromba marina in C Major, RV 558: I. Allegro molto
track: Vivaldi: Concerto for Two Violins in tromba marina in C Major, RV 558: II. Andante molto
track: Vivaldi: Concerto for Two Violins in tromba marina in C Major, RV 558: III. Allegro
track: Vivaldi: Mandolin Concerto in D Major, RV 93: I. Allegro
track: Vivaldi: Mandolin Concerto in D Major, RV 93: II. Largo
track: Vivaldi: Mandolin Concerto in D Major, RV 93: III. Allegro

I Soliste Veneti
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Vivaldi : Concerti per Mandolini
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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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
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date published: 2026-07-30T09:37:10Z

Vivaldi: Concerto for Two Mandolins in G Major, RV 532: III. Allegro
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Vivaldi: Mandolin Concerto in C Major, RV 425: I. Allegro
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duration: PT2M56S
duration ms: 176600
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by artist: Antonio Vivaldi
by artist: Claudio Scimone
by artist: I Solisti Veneti
in album: Vivaldi : Concerti per Mandolini
  type: MusicAlbum
  date published: 1984
popularity: 5
genre: classical
genre: early-music
genre: baroque
genre: concerto
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additional property: CopyrightID
additional property: CopyrightStatus
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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/FRZ208306101
additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f9e6cee8df579783a8ae1237d72ff9a163bd4e8eff7bf7b18a002732ec7aec. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ208306101 — a six-check JSON result.
  date published: 2026-07-29T13:21:01Z
audio: Vivaldi: Mandolin Concerto in C Major, RV 425: I. Allegro
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Vivaldi: Mandolin Concerto in C Major, RV 425: II. Largo
type: MusicRecording
duration: PT3M30S
duration ms: 210973
explicit: false
by artist: Antonio Vivaldi
by artist: Claudio Scimone
by artist: I Solisti Veneti
in album: Vivaldi : Concerti per Mandolini
  type: MusicAlbum
  date published: 1984
popularity: 5
genre: classical
genre: early-music
genre: baroque
genre: concerto
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
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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: 2026-07-29T19:35:34Z
audio: Vivaldi: Mandolin Concerto in C Major, RV 425: II. Largo
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Vivaldi: Mandolin Concerto in C Major, RV 425: III. Allegro
type: MusicRecording
duration: PT1M59S
duration ms: 119693
explicit: false
by artist: Antonio Vivaldi
by artist: Claudio Scimone
by artist: I Solisti Veneti
in album: Vivaldi : Concerti per Mandolini
  type: MusicAlbum
  date published: 1984
popularity: 4
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: FRZ208306103
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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: 2026-07-08T03:20:19Z
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Vivaldi: Concerto for Two Violins in tromba marina in C Major, RV 558: I. Allegro molto
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by artist: Antonio Vivaldi
by artist: Claudio Scimone
by artist: I Solisti Veneti
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popularity: 5
genre: classical
genre: early-music
genre: baroque
genre: concerto
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additional property: CopyrightID
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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: 2026-07-07T08:25:35Z
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Vivaldi: Concerto for Two Violins in tromba marina in C Major, RV 558: II. Andante molto
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duration: PT3M0S
duration ms: 180426
explicit: false
by artist: Antonio Vivaldi
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by artist: Claudio Scimone
by artist: I Solisti Veneti
in album: Vivaldi : Concerti per Mandolini
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popularity: 3
genre: classical
genre: early-music
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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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Vivaldi: Concerto for Two Violins in tromba marina in C Major, RV 558: III. Allegro
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  date published: 2026-07-30T15:42:38Z
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Vivaldi: Mandolin Concerto in D Major, RV 93: I. Allegro
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by artist: I Solisti Veneti
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T15:42:38Z
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Vivaldi: Mandolin Concerto in D Major, RV 93: II. Largo
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  date published: 2026-07-08T03:20:19Z
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Vivaldi: Mandolin Concerto in D Major, RV 93: III. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T02:19:15Z
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Work - Vivaldi
type: MusicAlbum
date published: 2021-01-19

Sleeping - Vivaldi
type: MusicAlbum
date published: 2021-01-23

On the Wings of Love
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    date published: 2026-07-08T03:20:19Z
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40 Most Beautiful Relaxing Classics
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Schumann: Kinderszenen, Op. 15: No. 1, Von fremden Ländern und Menschen
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by artist: Cyprien Katsaris
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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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Copland : Quiet City
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by artist: Hugh Wolff
by artist: Gary Bordner
by artist: Thomas Tempel
by artist: Saint Paul Chamber Orchestra
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T17:23:26Z
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Brahms: Symphony No. 2 in D Major, Op. 73: II. Adagio non troppo
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by artist: Kurt Masur
by artist: New York Philharmonic
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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
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Beethoven: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T16:01:17Z
audio: Beethoven: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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Schumann: Albumblätter, Op. 124: No. 16, Schlummerlied
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T06:58:00Z
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Shostakovich: Piano Concerto No. 2 in F Major, Op. 102: II. Andante
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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
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Mozart: Serenade for Winds No. 11 in E-Flat Major, K. 375: III. Adagio
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed0f3807592ec3c02bffc8ee03267e118b3e24d924a16b8f7692f7ac8dd02a0. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800115446 — a six-check JSON result.
  date published: 2026-07-30T06:57:05Z
audio: Mozart: Serenade for Winds No. 11 in E-Flat Major, K. 375: III. Adagio
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 97.684
  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
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  additional property: Energy
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    value: 0.021
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.842
  additional property: Liveness
    type: PropertyValue
    value: 0.094
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.072
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.829
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Haydn: String Quartet in C Major, Op. 76 No. 3, Hob. III:77 "Emperor": II. Poco adagio, cantabile
type: MusicRecording
duration: PT6M35S
duration ms: 395280
explicit: false
by artist: Joseph Haydn
by artist: Eder Quartet
in album: 40 Most Beautiful Relaxing Classics
  type: MusicAlbum
  date published: 2011-09-12
isrc code: DEA800115406
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T22:55:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x48f44d88b13b468f9eb932f3bc200a90ec2762cb75714782f492386c5c0125ac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960163
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960163
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800115406
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T23:20:38Z
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 0x48f44d88b13b468f9eb932f3bc200a90ec2762cb75714782f492386c5c0125ac. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800115406 — a six-check JSON result.
  date published: 2026-07-29T23:20:38Z
audio: Haydn: String Quartet in C Major, Op. 76 No. 3, Hob. III:77 "Emperor": II. Poco adagio, cantabile
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 93.761
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.873
  additional property: Liveness
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  additional property: Valence (Positivity)
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    value: 0.117
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.788
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
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Prokofiev: Symphony No. 1 in D Major, Op. 25 "Classical": II. Larghetto
type: MusicRecording
duration: PT3M56S
duration ms: 236373
explicit: false
by artist: Sergei Prokofiev
by artist: Hugh Wolff
by artist: Saint Paul Chamber Orchestra
in album: 40 Most Beautiful Relaxing Classics
  type: MusicAlbum
  date published: 2011-09-12
genre: classical
genre: orchestra
genre: neoclassical
isrc code: DEA800115434
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:59:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9f9c606dd656f095039921aa73efbacdbbf1d7fc735f8a4d50abddf469a2ebc0
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/DEA800115434
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 0x9f9c606dd656f095039921aa73efbacdbbf1d7fc735f8a4d50abddf469a2ebc0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800115434 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Prokofiev: Symphony No. 1 in D Major, Op. 25 "Classical": II. Larghetto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.015
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.33
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.925
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.657
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.061
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.126
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Rossini: String Sonata No. 5 in E-Flat Major: II. Andante
type: MusicRecording
duration: PT3M38S
duration ms: 218666
explicit: false
by artist: Gioachino Rossini
by artist: János Rolla
by artist: Franz Liszt Chamber Orchestra
in album: 40 Most Beautiful Relaxing Classics
  type: MusicAlbum
  date published: 2011-09-12
genre: classical
genre: opera
isrc code: DEA800115420
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:44:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x52ff15021daeb210bb91200c1a613c481bfef55f580f0a683c39d7d977661778
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/DEA800115420
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 0x52ff15021daeb210bb91200c1a613c481bfef55f580f0a683c39d7d977661778. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800115420 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Rossini: String Sonata No. 5 in E-Flat Major: II. Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 148.342
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.236
  additional property: Energy
    type: PropertyValue
    value: 0.026
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.912
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.679
  additional property: Liveness
    type: PropertyValue
    value: 0.119
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.056
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.018
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mendelssohn: A Midsummer Night's Dream, Op. 61, MWV M13: Nocturne
type: MusicRecording
duration: PT5M38S
duration ms: 338333
explicit: false
by artist: Felix Mendelssohn
by artist: Kurt Masur
by artist: Gewandhausorchester
in album: 40 Most Beautiful Relaxing Classics
  type: MusicAlbum
  date published: 2011-09-12
genre: classical
genre: early-romantic-era
genre: german-romanticism
genre: classical-piano
genre: choral
genre: chamber-music
isrc code: DEA809105510
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T13:20:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9936c61e606a601e83b1cb2e82548b1e775b393246c77d67cd5fce8bc3ea4f25
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/DEA809105510
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 0x9936c61e606a601e83b1cb2e82548b1e775b393246c77d67cd5fce8bc3ea4f25. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809105510 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Mendelssohn: A Midsummer Night's Dream, Op. 61, MWV M13: Nocturne
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 97.933
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.082
  additional property: Energy
    type: PropertyValue
    value: 0.021
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.883
  additional property: Liveness
    type: PropertyValue
    value: 0.106
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.701
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Piano Concerto No. 23 in A Major, K. 488: II. Andante
type: MusicRecording
duration: PT6M27S
duration ms: 387480
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Nikolaus Harnoncourt
by artist: Friedrich Gulda
by artist: Royal Concertgebouw Orchestra
in album: 40 Most Beautiful Relaxing Classics
  type: MusicAlbum
  date published: 2011-09-12
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DEA808400101
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8b697e8c0060112106ab170576bc054ebd0509936c5428f19b7376c1ec68ad3d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960284
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960284
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA808400101
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T17:23:26Z
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 0x8b697e8c0060112106ab170576bc054ebd0509936c5428f19b7376c1ec68ad3d. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA808400101 — a six-check JSON result.
  date published: 2026-07-30T17:23:26Z
audio: Mozart: Piano Concerto No. 23 in A Major, K. 488: II. Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.186
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.244
  additional property: Energy
    type: PropertyValue
    value: 0.025
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.943
  additional property: Liveness
    type: PropertyValue
    value: 0.12
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.047
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.184
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
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Grieg: Holberg Suite, Op. 40: II. Sarabande
type: MusicRecording
duration: PT3M48S
duration ms: 228933
explicit: false
by artist: Edvard Grieg
by artist: Ernő Sebestyén
by artist: Philharmonische Virtuosen Berlin
in album: 40 Most Beautiful Relaxing Classics
  type: MusicAlbum
  date published: 2011-09-12
genre: classical
genre: classical-piano
genre: late-romantic-era
genre: norwegian-classical
genre: orchestral
isrc code: DEA800115486
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T10:52:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa31a22d76bad7e5b7e7bb5bf6ee871be9929be7930c79127002e74e9f5ce9082
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
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/DEA800115486
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 0xa31a22d76bad7e5b7e7bb5bf6ee871be9929be7930c79127002e74e9f5ce9082. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800115486 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: Grieg: Holberg Suite, Op. 40: II. Sarabande
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 169.432
  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: 0.079
  additional property: Energy
    type: PropertyValue
    value: 0.037
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.892
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.655
  additional property: Liveness
    type: PropertyValue
    value: 0.305
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.072
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.999
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
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Brahms: Violin Concerto in D Major, Op. 77: II. Adagio
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by artist: Thomas Zehetmair
by artist: Christoph von Dohnányi
by artist: The Cleveland Orchestra
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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
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Beethoven: Piano Trio No. 4 in B-Flat Major, Op. 11 "Gassenhauer": II. Adagio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T16:07:24Z
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Rachmaninov: Piano Concerto No. 2 in C Minor, Op. 18: II. Adagio sostenuto (Excerpt)
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by artist: Maxim Shostakovich
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T04:47:22Z
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Borodin: String Quartet No. 2 in D Major: III. Notturno. Andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T19:53:13Z
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Ravel: Boléro, M. 81 (Excerpt)
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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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Khachaturian: Suite from Spartacus No. 2: I. Adagio of Spartacus and Phrygia (Excerpt)
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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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Ravel: Suite No. 2 from Daphnis et Chloé, M. 57: I. Lever du jour
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subject of: OpenTimestamps Proof of Existence
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Chopin: 24 Preludes, Op. 28: No. 4 in E Minor
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Paisiello: Mandolin Concerto in E-Flat Major: I. Allegro maestoso
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Albinoni: Oboe Concerto in D Minor, Op. 9 No. 2: II. Adagio
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Bach, JS: Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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Rachmaninov: Symphony No. 2 in E Minor, Op. 27: III. Adagio
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Bizet: Carmen, WD 31: Prelude to Act 3
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Saint-Saëns: Le carnaval des animaux, R 125: XIII. Le cygne
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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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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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Mozart: Serenade for Winds No. 10 in B-Flat Major, K. 361 "Gran partita": III. Adagio
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by artist: Wind Soloists of the Chamber Orchestra of Europe
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T12:24:41Z
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Vivaldi: Classical Favourites
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date published: 2021-02-10

Study - Vivaldi
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date published: 2021-01-25

Vivaldi - Sunday Evening
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date published: 2021-01-17

Vivaldi - Monday Evening
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date published: 2021-01-18

Vivaldi - Saturday Evening
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date published: 2021-01-16

Vivaldi - Wednesday Evening
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date published: 2021-01-20

Vivaldi - Tuesday Evening
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date published: 2021-01-26

Vivaldi - Friday Evening
type: MusicAlbum
date published: 2021-01-22

Vivaldi: Concerto for Two Mandolins in G Major, RV 532: II. Andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T14:53:07Z
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