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  track: Vivaldi: Mandolin Concerto in C Major, RV 425: I. Allegro
  track: Vivaldi: Cello Sonata No. 4 in B-Flat Major, Op. 14, RV 45: I. Largo
  track: Vivaldi: Cello Concerto in G Minor, RV 416: III. Allegro
  track: Vivaldi: Orlando furioso, RV 728, Act 3: "Poveri affetti miei siete innocenti" (Angelica)
  track: Vivaldi: Violin Concerto in F Major, RV 286 "Per la Solennità di San Lorenzo": III. Allegro non troppo
  track: Vivaldi: La cetra, Violin Concerto in A Minor, Op. 9 No. 5, RV 358: II. Allegro
  track: Vivaldi: Gloria in D Major, RV 589: I. Gloria in excelsis Deo
  track: Vivaldi: The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": I. Allegro non molto
  track: Vivaldi: The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": II. Adagio
  track: Vivaldi: The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": III. Presto
  track: Vivaldi: Trio Sonata in D Minor, Op. 1 No. 12, RV 63 "La follia"
  track: Vivaldi: Concerto for Two Mandolins in G Major, RV 532: II. Andante
  track: Vivaldi: Flute Concerto in D Major, RV 429: II. Largo
  track: Vivaldi: L'Olimpiade, RV 725: "Mentre dormi amor fomenti" (Licida)
  track: Vivaldi: Filiae Mestae Jerusalem, RV 638: "Sileant Zephyri"
  track: Vivaldi: Piccolo Concerto in C Major, RV 443: II. Largo
  track: Vivaldi: Cello Concerto in B Minor, RV 424: II. Largo
  track: Vivaldi / Arr. Balsom for Trumpet: L'estro armonico, Violin Concerto in A Minor, Op. 3 No. 6, RV 356: III. Presto
  track: Vivaldi: La stravaganza, Violin Concerto in E Minor, Op. 4 No. 2, RV 279: I. Allegro
  track: Vivaldi: The Four Seasons, Violin Concerto in F Major, Op. 8 No. 3, RV 293 "Autumn": I. Allegro
  track: Vivaldi: The Four Seasons, Violin Concerto in F Major, Op. 8 No. 3, RV 293 "Autumn": II. Adagio molto
  track: Vivaldi: The Four Seasons, Violin Concerto in F Major, Op. 8 No. 3, RV 293 "Autumn": III. Allegro "La caccia"
  track: Vivaldi: Concerto for Two Cellos in G Minor, RV 531: II. Largo
  track: Vivaldi: Il Giustino, RV 717, Act 1: "Vedrò con mio diletto" (Anastasio)
  track: Vivaldi: L'estro armonico, Concerto pour 2 violons en la mineur, Op. 3 No. 8, RV 522: I. Allegro
  track: Vivaldi: Flute Concerto in D Major, Op. 10 No. 3, RV 428 "Il gardellino": III. Allegro
  track: Vivaldi: Stabat Mater, RV 621: I. Stabat Mater dolorosa
  track: Vivaldi: Ercole sul Termodonte, RV 710: "Onde chiare che sussurrate" (Ippolita)
  track: Vivaldi: Giustino, RV 717, Act 2: "Per noi soave e bella" (Arianna)
  track: Vivaldi: Concerto for Two Trumpets in C Major, RV 537: II. Largo
  track: Vivaldi: Flute Concerto in G Minor, Op. 10 No. 2, RV 439 "La notte": IV. Allegro
  track: Vivaldi: Guitar Concerto in D Major, RV 93: II. Largo
  track: Vivaldi: L'estro armonico, Concerto for Four Violins in E Minor, Op. 3 No. 4, RV 550: III. Adagio
  track: Vivaldi: Magnificat in G Minor, RV 611: I. Magnificat
  track: Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": I. Allegro
  track: Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": II. Largo e pianissimo sempre
  track: Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": III. Allegro
album: Essential Vivaldi
album: The Complete Musical Heritage Society Recordings: Aaron Copland
album: Brahms: Piano Quintet - Horn Trio
album: Dance of the Blessed Spirits
album: 100 Best Violin
album: Mahler: Das Lied von der Erde (The Song of the Earth)
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album: Haydn: Morning, Noon & Evening
album: Handel: With Valour Abounding
album: Bach: Brandenburg Concertos
album: Music of Andre Previn
album: Archaeopteryx
album: New York Concert Singers: The Mask
album: Chamber Music of Eric Ewazen
album: Chamber Music of Paul Hindemith
album: Mozart: Divertimenti Nos. 7-15
album: Copland: Appalachian Spring, Nonet, Two Pieces for String Quartet
album: Vivaldi: The Four Seasons
album: The Very Best of Kyung-Wha Chung
album: Classical Music for Work
album: Bach: Wedding Gifts
album: "Adagietto" - Smooth Music to Relax

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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f61644bf51af914828d81565ad913395c9f0657e80ca08d35e817dd071c090. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRZ206415901.
  date published: 2026-07-08T03:53:27Z
audio: Vivaldi: Cello Sonata No. 4 in B-Flat Major, Op. 14, RV 45: I. Largo
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
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Vivaldi: Cello Concerto in G Minor, RV 416: III. Allegro
type: MusicRecording
duration: PT2M39S
duration ms: 159360
explicit: false
by artist: Antonio Vivaldi
by artist: Sonatori de la Gioiosa Marca
in album: Vivaldi: Masterpieces
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  date published: 2024-01-18
popularity: 16
isrc code: FRZ200100627
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: 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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273aab12e7acc0ad528c0bc4c5bbc8097fe2edcdc79b2c569c64c831e2122027. 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/FRZ200100627.
  date published: 2026-07-02T03:55:08Z
audio: Vivaldi: Cello Concerto in G Minor, RV 416: III. Allegro
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Vivaldi: Orlando furioso, RV 728, Act 3: "Poveri affetti miei siete innocenti" (Angelica)
type: MusicRecording
duration: PT2M5S
duration ms: 125333
explicit: false
by artist: Antonio Vivaldi
by artist: Victoria de los Ángeles
by artist: Claudio Scimone
by artist: I Solisti Veneti
in album: Vivaldi: Masterpieces
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  date published: 2024-01-18
popularity: 7
isrc code: FRZ202300063
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/FRZ202300063
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1351bd810d3d4d769473a3243a65575cb7092809bb3aa4fc52721e1bce191c96. 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/FRZ202300063.
  date published: 2026-07-08T03:22:41Z
audio: Vivaldi: Orlando furioso, RV 728, Act 3: "Poveri affetti miei siete innocenti" (Angelica)
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  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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Vivaldi: Violin Concerto in F Major, RV 286 "Per la Solennità di San Lorenzo": III. Allegro non troppo
type: MusicRecording
duration: PT5M4S
duration ms: 304466
explicit: false
by artist: Antonio Vivaldi
by artist: Claudio Scimone
by artist: Piero Toso
by artist: I Solisti Veneti
in album: Vivaldi: Masterpieces
  type: MusicAlbum
  date published: 2024-01-18
popularity: 7
isrc code: FRZ207503303
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f50d3bf0d564d6de042773745888ed0148f2c5e78be9dceb7b9e1b0df96056. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ207503303.
  date published: 2026-07-07T09:18:01Z
audio: Vivaldi: Violin Concerto in F Major, RV 286 "Per la Solennità di San Lorenzo": III. Allegro non troppo
  type: AudioObject
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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Vivaldi: La cetra, Violin Concerto in A Minor, Op. 9 No. 5, RV 358: II. Allegro
type: MusicRecording
duration: PT3M1S
duration ms: 181066
explicit: false
by artist: Antonio Vivaldi
by artist: Claudio Scimone
by artist: Juan Carlos Rybin
by artist: I Solisti Veneti
in album: Vivaldi: Masterpieces
  type: MusicAlbum
  date published: 2024-01-18
popularity: 7
isrc code: FRZ207650026
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
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53319f070c063fb6379ce47440c6b2a557de8725fa16218d5779e09a73393e4e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRZ207650026.
  date published: 2026-07-08T03:53:27Z
audio: Vivaldi: La cetra, Violin Concerto in A Minor, Op. 9 No. 5, RV 358: II. Allegro
  type: AudioObject
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Vivaldi: Gloria in D Major, RV 589: I. Gloria in excelsis Deo
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duration: PT2M27S
duration ms: 147320
explicit: false
by artist: Antonio Vivaldi
by artist: Choir of King's College, Cambridge
by artist: Academy of Ancient Music
by artist: Stephen Cleobury
in album: Vivaldi: Masterpieces
  type: MusicAlbum
  date published: 2024-01-18
popularity: 8
isrc code: GBAYC0102838
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
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496c4e6e8c3f6ed66e5fe4eeeae4fb438b6ffa8331e2b5f74374d8ff6f915ed1. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0102838.
  date published: 2026-07-07T18:39:05Z
audio: Vivaldi: Gloria in D Major, RV 589: I. Gloria in excelsis Deo
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Vivaldi: The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": I. Allegro non molto
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duration: PT5M27S
duration ms: 327626
explicit: false
by artist: Antonio Vivaldi
by artist: Kyung Wha Chung
by artist: St. Luke's Chamber Ensemble
in album: Vivaldi: Masterpieces
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  date published: 2024-01-18
popularity: 7
isrc code: GBAYC0003585
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f1f5355867800d272e2b7b9e005f1a2be2a05ac7e675b083b2b13bab0b1c07. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/GBAYC0003585.
  date published: 2026-07-07T14:18:56Z
audio: Vivaldi: The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": I. Allegro non molto
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Vivaldi: The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": II. Adagio
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duration: PT2M17S
duration ms: 137666
explicit: false
by artist: Antonio Vivaldi
by artist: Kyung Wha Chung
by artist: St. Luke's Chamber Ensemble
in album: Vivaldi: Masterpieces
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popularity: 6
isrc code: GBAYC0003586
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1ed4d2ddf01e20e389f4db3ee4747ba3ff9e21945e13c523a6fdcdd7f3e278. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBAYC0003586.
  date published: 2026-07-08T03:53:27Z
audio: Vivaldi: The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": II. Adagio
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  additional property: Valence (Positivity)
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Vivaldi: The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": III. Presto
type: MusicRecording
duration: PT2M49S
duration ms: 169906
explicit: false
by artist: Antonio Vivaldi
by artist: Kyung Wha Chung
by artist: St. Luke's Chamber Ensemble
in album: Vivaldi: Masterpieces
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  date published: 2024-01-18
popularity: 12
isrc code: GBAYC0003587
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1989cd100a0b2b622f8f3f8206441f0df2f4ec57cca89b901619751ec8dc49a3. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/GBAYC0003587.
  date published: 2026-07-07T13:52:39Z
audio: Vivaldi: The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": III. Presto
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Vivaldi: Trio Sonata in D Minor, Op. 1 No. 12, RV 63 "La follia"
type: MusicRecording
duration: PT9M30S
duration ms: 570223
explicit: false
by artist: Antonio Vivaldi
by artist: Il Giardino Armonico
in album: Vivaldi: Masterpieces
  type: MusicAlbum
  date published: 2024-01-18
popularity: 12
isrc code: DEA809177064
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
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809177064
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
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 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/DEA809177064.
  date published: 2026-07-02T03:55:08Z
audio: Vivaldi: Trio Sonata in D Minor, Op. 1 No. 12, RV 63 "La follia"
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  additional property: Musical Key
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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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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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Vivaldi: Concerto for Two Mandolins in G Major, RV 532: II. Andante
type: MusicRecording
duration: PT2M49S
duration ms: 169826
explicit: false
by artist: Antonio Vivaldi
by artist: Europa Galante
by artist: Fabio Biondi
by artist: Giovanni Scaramuzzino
by artist: Sonia Maurer
in album: Vivaldi: Masterpieces
  type: MusicAlbum
  date published: 2024-01-18
popularity: 6
isrc code: GBAYC0103447
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc63c27811d983d6ac5a55fc25321c41bf6c6bb228f51ae64e0e9d558a1565a3. 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/GBAYC0103447.
  date published: 2026-07-08T03:22:41Z
audio: Vivaldi: Concerto for Two Mandolins in G Major, RV 532: II. Andante
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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Vivaldi: Flute Concerto in D Major, RV 429: II. Largo
type: MusicRecording
duration: PT1M49S
duration ms: 109120
explicit: false
by artist: Antonio Vivaldi
by artist: Emmanuel Pahud
by artist: Australian Chamber Orchestra
by artist: Richard Tognetti
in album: Vivaldi: Masterpieces
  type: MusicAlbum
  date published: 2024-01-18
popularity: 5
isrc code: GBAYC0501785
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1903d08701a0fe7462adb4d5331b5c4c7c1be530352daf305c232ae9d510408c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBAYC0501785.
  date published: 2026-07-08T03:53:27Z
audio: Vivaldi: Flute Concerto in D Major, RV 429: II. Largo
  type: AudioObject
  additional property: Tempo (BPM)
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Vivaldi: L'Olimpiade, RV 725: "Mentre dormi amor fomenti" (Licida)
type: MusicRecording
duration: PT7M43S
duration ms: 463200
explicit: false
by artist: Antonio Vivaldi
by artist: Philippe Jaroussky
by artist: Ensemble Matheus
by artist: Jean-Christophe Spinosi
in album: Vivaldi: Masterpieces
  type: MusicAlbum
  date published: 2024-01-18
popularity: 6
isrc code: GBAYC0601629
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7361c0347e7acc6bbe4eacb9355e95c8bbc67a970750a90222a9417c01808546. 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/GBAYC0601629.
  date published: 2026-07-08T03:20:19Z
audio: Vivaldi: L'Olimpiade, RV 725: "Mentre dormi amor fomenti" (Licida)
  type: AudioObject
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Acousticness
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Vivaldi: Filiae Mestae Jerusalem, RV 638: "Sileant Zephyri"
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duration: PT6M26S
duration ms: 386653
explicit: false
by artist: Antonio Vivaldi
by artist: Philippe Jaroussky
in album: Vivaldi: Masterpieces
  type: MusicAlbum
  date published: 2024-01-18
popularity: 7
isrc code: GBAYC1402095
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791430661c553abb91858bc2303e30ada87a4ab1231cac8b30b4a9329ea6f89a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBAYC1402095.
  date published: 2026-07-08T03:53:27Z
audio: Vivaldi: Filiae Mestae Jerusalem, RV 638: "Sileant Zephyri"
  type: AudioObject
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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
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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Vivaldi: Piccolo Concerto in C Major, RV 443: II. Largo
type: MusicRecording
duration: PT3M0S
duration ms: 180653
explicit: false
by artist: Antonio Vivaldi
by artist: Jean-Pierre Rampal
by artist: I Solisti Veneti
by artist: Claudio Scimone
in album: Vivaldi: Masterpieces
  type: MusicAlbum
  date published: 2024-01-18
popularity: 5
isrc code: GBAYC1500340
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-03T08:19:51+00:00
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Vivaldi: Piccolo Concerto in C Major, RV 443: II. Largo
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Vivaldi: Cello Concerto in B Minor, RV 424: II. Largo
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by artist: Han-Na Chang
by artist: Christopher Warren-Green
by artist: London 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: 2026-07-08T03:53:27Z
audio: Vivaldi: Cello Concerto in B Minor, RV 424: II. Largo
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Vivaldi / Arr. Balsom for Trumpet: L'estro armonico, Violin Concerto in A Minor, Op. 3 No. 6, RV 356: III. Presto
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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: Vivaldi / Arr. Balsom for Trumpet: L'estro armonico, Violin Concerto in A Minor, Op. 3 No. 6, RV 356: III. Presto
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Vivaldi: La stravaganza, Violin Concerto in E Minor, Op. 4 No. 2, RV 279: I. Allegro
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by artist: Fabio Biondi
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Vivaldi: La stravaganza, Violin Concerto in E Minor, Op. 4 No. 2, RV 279: I. Allegro
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Vivaldi: The Four Seasons, Violin Concerto in F Major, Op. 8 No. 3, RV 293 "Autumn": I. Allegro
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by artist: Orpheus Chamber Orchestra
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Vivaldi: The Four Seasons, Violin Concerto in F Major, Op. 8 No. 3, RV 293 "Autumn": I. Allegro
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Vivaldi: The Four Seasons, Violin Concerto in F Major, Op. 8 No. 3, RV 293 "Autumn": II. Adagio molto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Vivaldi: The Four Seasons, Violin Concerto in F Major, Op. 8 No. 3, RV 293 "Autumn": II. Adagio molto
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Vivaldi: The Four Seasons, Violin Concerto in F Major, Op. 8 No. 3, RV 293 "Autumn": III. Allegro "La caccia"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Vivaldi: The Four Seasons, Violin Concerto in F Major, Op. 8 No. 3, RV 293 "Autumn": III. Allegro "La caccia"
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Vivaldi: Concerto for Two Cellos in G Minor, RV 531: II. Largo
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by artist: Il Giardino Armonico
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Vivaldi: Concerto for Two Cellos in G Minor, RV 531: II. Largo
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Vivaldi: Il Giustino, RV 717, Act 1: "Vedrò con mio diletto" (Anastasio)
type: MusicRecording
duration: PT5M37S
duration ms: 337600
explicit: false
by artist: Antonio Vivaldi
by artist: Jakub Józef Orliński
by artist: Maxim Emelyanychev
by artist: Il Pomo D'oro
in album: Vivaldi: Masterpieces
  type: MusicAlbum
  date published: 2024-01-18
popularity: 32
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541b131ae4ad6a22903fff0487cd03466d36b30186623dd162509349603fd3ee. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBAYC1800489.
  date published: 2026-06-13T17:25:41Z
audio: Vivaldi: Il Giustino, RV 717, Act 1: "Vedrò con mio diletto" (Anastasio)
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Vivaldi: L'estro armonico, Concerto pour 2 violons en la mineur, Op. 3 No. 8, RV 522: I. Allegro
type: MusicRecording
duration: PT3M9S
duration ms: 189173
explicit: false
by artist: Antonio Vivaldi
by artist: Camille Berthollet
by artist: Julie Berthollet
by artist: Benjamin Levy
by artist: String ensemble of the Orchestre National du Capitole de Toulouse
in album: Vivaldi: Masterpieces
  type: MusicAlbum
  date published: 2024-01-18
popularity: 13
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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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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6933e9aa94011186bd62968938e8a905ee26d65f197230fc4bfbb1275eb6704d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBAYC1902491.
  date published: 2026-07-02T11:38:34Z
audio: Vivaldi: L'estro armonico, Concerto pour 2 violons en la mineur, Op. 3 No. 8, RV 522: I. Allegro
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Vivaldi: Flute Concerto in D Major, Op. 10 No. 3, RV 428 "Il gardellino": III. Allegro
type: MusicRecording
duration: PT2M52S
duration ms: 172746
explicit: false
by artist: Antonio Vivaldi
by artist: Emmanuel Pahud
by artist: Australian Chamber Orchestra
by artist: Richard Tognetti
in album: Vivaldi: Masterpieces
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popularity: 4
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe3440afe64275e712f002a374cc97478959271c76e3ac99232c745a73b096a. 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/GBAYC0501766.
  date published: 2026-07-08T03:20:19Z
audio: Vivaldi: Flute Concerto in D Major, Op. 10 No. 3, RV 428 "Il gardellino": III. Allegro
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Vivaldi: Stabat Mater, RV 621: I. Stabat Mater dolorosa
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duration: PT2M54S
duration ms: 174893
explicit: false
by artist: Antonio Vivaldi
by artist: Jakub Józef Orliński
by artist: Capella Cracoviensis
by artist: Jan Tomasz Adamus
in album: Vivaldi: Masterpieces
  type: MusicAlbum
  date published: 2024-01-18
popularity: 5
isrc code: GBAYC2003324
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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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b0a3afb5ff6fe1decbabc97b5c5ba54ecd64747220e4416b4e0b8a9d429140. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GBAYC2003324.
  date published: 2026-07-07T14:50:41Z
audio: Vivaldi: Stabat Mater, RV 621: I. Stabat Mater dolorosa
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Vivaldi: Ercole sul Termodonte, RV 710: "Onde chiare che sussurrate" (Ippolita)
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duration: PT7M5S
duration ms: 425533
explicit: false
by artist: Antonio Vivaldi
by artist: Lea Desandre
by artist: Jupiter
by artist: Thomas Dunford
in album: Vivaldi: Masterpieces
  type: MusicAlbum
  date published: 2024-01-18
popularity: 4
isrc code: GBAYC2003400
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb30154ebc876b3d753094a07389a5872ee9b38d00257299f1fe268c7aed09c3. 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/GBAYC2003400.
  date published: 2026-07-08T03:20:19Z
audio: Vivaldi: Ercole sul Termodonte, RV 710: "Onde chiare che sussurrate" (Ippolita)
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Vivaldi: Giustino, RV 717, Act 2: "Per noi soave e bella" (Arianna)
type: MusicRecording
duration: PT4M55S
duration ms: 295826
explicit: false
by artist: Antonio Vivaldi
by artist: Bruno de Sá
by artist: Francesco Corti
by artist: Il Pomo D'oro
in album: Vivaldi: Masterpieces
  type: MusicAlbum
  date published: 2024-01-18
popularity: 6
isrc code: GBAYC2101482
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T14:41:13Z
audio: Vivaldi: Giustino, RV 717, Act 2: "Per noi soave e bella" (Arianna)
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Vivaldi: Concerto for Two Trumpets in C Major, RV 537: II. Largo
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by artist: Antonio Vivaldi
by artist: Sir Neville Marriner
by artist: Bernard Soustrot
by artist: Maurice André
by artist: Academy of St. Martin in the Fields
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popularity: 3
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Vivaldi: Concerto for Two Trumpets in C Major, RV 537: II. Largo
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Vivaldi: Flute Concerto in G Minor, Op. 10 No. 2, RV 439 "La notte": IV. Allegro
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duration: PT1M0S
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by artist: Andrew Parrott
by artist: Taverner Players
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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: Vivaldi: Flute Concerto in G Minor, Op. 10 No. 2, RV 439 "La notte": IV. Allegro
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Vivaldi: Guitar Concerto in D Major, RV 93: II. Largo
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duration: PT4M32S
duration ms: 272760
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by artist: Christopher Parkening
by artist: Iona Brown
by artist: Academy of St. Martin in the Fields
in album: Vivaldi: Masterpieces
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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: 2026-07-08T03:22:41Z
audio: Vivaldi: Guitar Concerto in D Major, RV 93: II. Largo
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Vivaldi: L'estro armonico, Concerto for Four Violins in E Minor, Op. 3 No. 4, RV 550: III. Adagio
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duration: PT0M40S
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explicit: false
by artist: Antonio Vivaldi
by artist: Renato Fasano
by artist: Angelo Stefanato
by artist: Franco Gulli
by artist: I virtuosi di Roma
by artist: Mario Benvenuti
by artist: Renato Ruotolo
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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: Vivaldi: L'estro armonico, Concerto for Four Violins in E Minor, Op. 3 No. 4, RV 550: III. Adagio
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Vivaldi: Magnificat in G Minor, RV 611: I. Magnificat
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duration ms: 86066
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by artist: Riccardo Muti
by artist: New Philharmonia Chorus
by artist: New Philharmonia Orchestra
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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: 2026-07-08T03:53:27Z
audio: Vivaldi: Magnificat in G Minor, RV 611: I. Magnificat
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Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": I. Allegro
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by artist: Fabio Biondi
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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: Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": I. Allegro
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Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": II. Largo e pianissimo sempre
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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
audio: Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": II. Largo e pianissimo sempre
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track: Vivaldi: Flute Concerto in D Major, Op. 10 No. 3, RV 428 "Il gardellino": II. Cantabile
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track: Vivaldi: Flute Concerto in G Minor, Op. 10 No. 2, RV 439 "La notte": V. Largo. Il Sonno
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track: Vivaldi: Piccolo Concerto in C Major, RV 443: I. Allegro

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Vivaldi: Mandolin Concerto in C Major, RV 425: II. Largo
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Vivaldi: Flute Concerto in G Minor, Op. 10 No. 2, RV 439 "La notte": V. Largo. Il Sonno
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Vivaldi: Concerto for Two Trumpets in C Major, RV 537: II. Largo
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Vivaldi: Piccolo Concerto in C Major, RV 443: I. Allegro
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The Complete Musical Heritage Society Recordings: Aaron Copland
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Brahms: Piano Quintet - Horn Trio
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Dance of the Blessed Spirits
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Gluck: Orfeo ed Euridice, Wq. 30, Act 2: Dance of the Blessed Spirits
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subject of: OpenTimestamps Proof of Existence
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Popper: Dance of the Elves, Op. 39
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subject of: OpenTimestamps Proof of Existence
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Barrios Mangoré: La catedral: III. Allegro solemne
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subject of: OpenTimestamps Proof of Existence
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Falla: The Three-Cornered Hat, Pt. 2: The Miller's Dance
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audio: Falla: The Three-Cornered Hat, Pt. 2: The Miller's Dance
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Falla: The Three-Cornered Hat, Pt. 2: Dance of the Neighbours
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Gluck: Melodie from Orfeo ed Euridice
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audio: Gluck: Melodie from Orfeo ed Euridice
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Handel / Orch. Hale: Keyboard Suite No. 4 in D Minor, HWV 437: III. Sarabande
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Kreisler: 3 Alt-Wiener Tanzweisen: No. 2, Liebesleid
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subject of: OpenTimestamps Proof of Existence
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Piazzolla: Oblivion (Orch. Zimmerman)
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subject of: OpenTimestamps Proof of Existence
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Grieg: Suite No. 1 from Peer Gynt, Op. 46: III. Anitra's Dance
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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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Prokofiev: 10 Pieces from Romeo & Juliet, Op. 75: No. 6, Montagues and Capulets
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subject of: OpenTimestamps Proof of Existence
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audio: Prokofiev: 10 Pieces from Romeo & Juliet, Op. 75: No. 6, Montagues and Capulets
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Debussy: Rêverie, CD 76, L. 68
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audio: Debussy: Rêverie, CD 76, L. 68
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Chopin: Nocturne No. 20 in C-Sharp Minor, Op. Posth.
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Grieg: Suite No. 1 from Peer Gynt, Op. 46: I. Morning Mood
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Piazzolla: Libertango (Arr. Milone for Trumpet and Orchestra)
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Piazzolla: Libertango (Arr. Milone for Trumpet and Orchestra)
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Bernstein: Symphonic Dances from West Side Story: No. 2, Somewhere
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by artist: Leonard Bernstein
by artist: Paavo Järvi
by artist: City Of Birmingham Symphony Orchestra
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Bernstein: Symphonic Dances from West Side Story: No. 2, Somewhere
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Kreisler / Arr. Rachmaninov: 3 Alt-Wiener Tanzweisen: No. 2, Liebesleid
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by artist: Aurélien Pontier
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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: 2026-07-08T03:22:41Z
audio: Kreisler / Arr. Rachmaninov: 3 Alt-Wiener Tanzweisen: No. 2, Liebesleid
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Liszt: Grandes études de Paganini, S. 141: No. 3, La campanella
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by artist: Yoav Levanon
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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: Liszt: Grandes études de Paganini, S. 141: No. 3, La campanella
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Chopin: Prelude in C-Sharp Minor, Op. 45
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by artist: Yoav Levanon
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Chopin: Prelude in C-Sharp Minor, Op. 45
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Pachelbel: Canon and Gigue in D Major: Canon
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by artist: Sir Neville Marriner
by artist: Academy of St. Martin in the Fields
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Pachelbel: Canon and Gigue in D Major: Canon
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Debussy: Suite bergamasque, CD 82, L. 75: III. Clair de lune
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by artist: Monique Haas
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Debussy: Suite bergamasque, CD 82, L. 75: III. Clair de lune
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Prokofiev: Romeo and Juliet, Op. 64, Act 1: Dance of the Knights
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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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100 Best Violin
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Mahler: Das Lied von der Erde (The Song of the Earth)
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track: Kreisler: 3 Old Viennese Dances: No. 3, Schön Rosmarin
track: Kreisler: Caprice viennois, Op. 2
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track: Vivaldi: The Four Seasons, Violin Concerto in F Major, Op. 8 No. 3, RV 293 "Autumn": III. Allegro "La caccia"
track: Bach, JS: Sonata for Solo Violin No. 1 in G Minor, BWV 1001: I. Adagio
track: Bach, JS: Sonata for Solo Violin No. 1 in G Minor, BWV 1001: II. Fuga
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Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": I. Allegro
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Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": II. Largo e pianissimo sempre
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Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": III. Allegro
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Vivaldi: The Four Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": I. Allegro non molto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Beethoven: Piano Trio No. 4 in B-Flat Major, Op. 11 "Gassenhauer": I. Allegro con brio
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Beethoven: Piano Trio No. 4 in B-Flat Major, Op. 11 "Gassenhauer": II. Adagio
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
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Beethoven: Piano Trio No. 4 in B-Flat Major, Op. 11 "Gassenhauer": III. Allegretto
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Beethoven: Piano Trio No. 4 in B-Flat Major, Op. 11 "Gassenhauer": III. Allegretto
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Fauré: Berceuse, Op. 16
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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: Fauré: Berceuse, Op. 16
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Franck: Mass, Op. 12, FWV 61: Panis angelicus (Arr. Kenner for Violin and Piano)
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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: Franck: Mass, Op. 12, FWV 61: Panis angelicus (Arr. Kenner for Violin and Piano)
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Schubert: Ave Maria, Op. 52 No. 6, D. 839 (Arr. Wilhelmj for Violin and Piano)
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Schubert: Ave Maria, Op. 52 No. 6, D. 839 (Arr. Wilhelmj for Violin and Piano)
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Brahms: Violin Sonata No. 3 in D Minor, Op. 108: I. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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Brahms: Violin Sonata No. 3 in D Minor, Op. 108: III. Un poco presto e con sentimento
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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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Brahms: Violin Sonata No. 3 in D Minor, Op. 108: IV. Presto agitato
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by artist: Kyung Wha Chung
by artist: Peter Frankl
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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: Brahms: Violin Sonata No. 3 in D Minor, Op. 108: IV. Presto agitato
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Dvořák: 4 Romantic Pieces, Op. 75, B. 150: No. 1, Allegro moderato
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by artist: Kyung Wha Chung
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Dvořák: 4 Romantic Pieces, Op. 75, B. 150: No. 1, Allegro moderato
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Dvořák: 4 Romantic Pieces, Op. 75, B. 150: No. 2, Allegro maestoso
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T11:34:59Z
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Dvořák: 4 Romantic Pieces, Op. 75, B. 150: No. 3, Allegro appassionato
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
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Dvořák: 4 Romantic Pieces, Op. 75, B. 150: No. 4, Larghetto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T11:38:34Z
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Ibert: Histoires: No. 2, Le petit âne blanc (Arr. Hoérée for Violin and Piano)
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Kreisler: Tambourin chinois, Op. 3
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Vivaldi: The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": I. Allegro non molto
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Vivaldi: The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": II. Adagio
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Vivaldi: The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": III. Presto
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Vivaldi: The Four Seasons, Violin Concerto in F Major, Op. 8 No. 3, RV 293 "Autumn": I. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T11:34:59Z
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Vivaldi: The Four Seasons, Violin Concerto in F Major, Op. 8 No. 3, RV 293 "Autumn": III. Allegro "La caccia"
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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Bach, JS: Sonata for Solo Violin No. 1 in G Minor, BWV 1001: I. Adagio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T11:34:59Z
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Bach, JS: Sonata for Solo Violin No. 1 in G Minor, BWV 1001: II. Fuga
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T11:34:59Z
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Bach, JS: Sonata for Solo Violin No. 1 in G Minor, BWV 1001: IV. Presto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-13T07:54:01Z
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Bach, JS: Violin Partita No. 3 in E Major, BWV 1006: I. Preludio
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  date published: 2026-07-13T07:53:33Z
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Bach, JS: Violin Partita No. 3 in E Major, BWV 1006: IV. Menuets I & II
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  date published: 2026-07-07T14:04:01Z
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Bach, JS: Violin Partita No. 3 in E Major, BWV 1006: VI. Gigue
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by artist: Kyung Wha Chung
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genre: classical
genre: classical-piano
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T01:26:17Z
audio: Bach, JS: Violin Partita No. 3 in E Major, BWV 1006: VI. Gigue
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Fauré: Violin Sonata No. 1 in A Major, Op. 13: II. Andante
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duration: PT6M7S
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by artist: Gabriel Fauré
by artist: Kyung Wha Chung
by artist: Kevin Kenner
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:53:57Z
audio: Fauré: Violin Sonata No. 1 in A Major, Op. 13: II. Andante
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Fauré: Violin Sonata No. 1 in A Major, Op. 13: III. Allegro vivo
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duration: PT4M9S
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by artist: Kyung Wha Chung
by artist: Kevin Kenner
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:53:57Z
audio: Fauré: Violin Sonata No. 1 in A Major, Op. 13: III. Allegro vivo
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Fauré: Violin Sonata No. 1 in A Major, Op. 13: IV. Allegro quasi presto
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explicit: false
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by artist: Kyung Wha Chung
by artist: Kevin Kenner
in album: Meditation
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Fauré: Violin Sonata No. 1 in A Major, Op. 13: IV. Allegro quasi presto
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Haydn: Morning, Noon & Evening
type: MusicAlbum
date published: 2011-11-23

Handel: With Valour Abounding
type: MusicAlbum
date published: 2011-11-23

Bach: Brandenburg Concertos
type: MusicAlbum
date published: 2011-11-23

Music of Andre Previn
type: MusicAlbum
date published: 2008-08-05

Archaeopteryx
type: MusicAlbum
date published: 2008-03-11

New York Concert Singers: The Mask
type: MusicAlbum
date published: 1998-01-01

Chamber Music of Eric Ewazen
type: MusicAlbum
date published: 1995-05-09
track: Frostfire: II. Gentle And Mysterious
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  by artist: Eric Ewazen
  by artist: American Brass Quintet
  by artist: St. Luke's Chamber Ensemble
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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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-08T03:20:19Z
  audio: Frostfire: II. Gentle And Mysterious
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    additional property: Speechiness
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    additional property: Valence (Positivity)
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track: Frostfire: III. Tense And Dramatic
  type: MusicRecording
  duration: PT4M55S
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  by artist: Eric Ewazen
  by artist: American Brass Quintet
  by artist: St. Luke's Chamber Ensemble
  by artist: William Sharp
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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
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:39:04Z
  audio: Frostfire: III. Tense And Dramatic
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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track: Sonata for Horn and Piano: I. Andante - Allegro Molto
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Sonata for Horn and Piano: I. Andante - Allegro Molto
track: Sonata for Horn and Piano: II. Adagio

OTSHash
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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value: https://blockstream.info/api/block-height/957124

OTSVerificationAPI
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OTSTimestamp
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value: 2026-07-08T03:53:27Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f938a99d23d6fb8550a2aca2f34f1458319f96f344907fcb650bfa7d5ebd062. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USGVE0900132.
date published: 2026-07-08T03:53:27Z

Sonata for Horn and Piano: I. Andante - Allegro Molto
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additional property: Mode (Major/Minor)
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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OpenTimestamps Proof of Existence
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date published: 2026-06-13T13:32:09Z

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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Vivaldi: The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": III. Presto
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Vivaldi: The Four Seasons, Violin Concerto in F Major, Op. 8 No. 3, RV 293 "Autumn": I. Allegro
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
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Vivaldi: The Four Seasons, Violin Concerto in F Major, Op. 8 No. 3, RV 293 "Autumn": II. Adagio molto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Vivaldi: The Four Seasons, Violin Concerto in F Major, Op. 8 No. 3, RV 293 "Autumn": II. Adagio molto
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Vivaldi: The Four Seasons, Violin Concerto in F Major, Op. 8 No. 3, RV 293 "Autumn": III. Allegro "La caccia"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Vivaldi: The Four Seasons, Violin Concerto in F Major, Op. 8 No. 3, RV 293 "Autumn": III. Allegro "La caccia"
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Vivaldi: The Four Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": I. Allegro non molto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
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Vivaldi: The Four Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": II. Largo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
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Vivaldi: The Four Seasons, Violin Concerto in F Minor, Op. 8 No. 4, RV 297 "Winter": III. Allegro
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  date published: 2026-06-13T15:41:10Z
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The Very Best of Kyung-Wha Chung
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date published: 2011-06-03
track: Vivaldi: The Four Seasons, Violin Concerto in E Major, Op. 8 No. 1, RV 269 "Spring": I. Allegro
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Classical Music for Work
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Bach: Wedding Gifts
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Mahler: Symphony No. 5 in C-Sharp Minor: IV. Adagietto. Sehr langsam, Pt. 7
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Mahler: Symphony No. 5 in C-Sharp Minor: IV. Adagietto. Sehr langsam, Pt. 8
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  date published: 2026-06-13T13:32:09Z
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Mahler: Symphony No. 5 in C-Sharp Minor: IV. Adagietto. Sehr langsam, Pt. 9
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Bach, JS: The Well-Tempered Clavier, Book I, Prelude and Fugue No. 5 in D Major, BWV 850: Prelude (Transcr. Neumann for Violin and Cello)
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  date published: 2026-06-13T15:41:10Z
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Albinoni : Trumpet Concerto in B flat : I Adagietto
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Beethoven: Symphony No. 5 in C Minor, Op. 67: II. Andante con moto, Pt. 1
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Beethoven: Symphony No. 5 in C Minor, Op. 67: II. Andante con moto, Pt. 2
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