Simon Over
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genre: chamber music
description: Simon Over MA attended King Henry VIII School in Coventry, UK. He subsequently studied at the Conservatorium van Amsterdam, the Royal Academy of Music and the University of Oxford (at Keble College).
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  track: Piano Concerto No. 5 in E-Flat Major, Op. 73 “Emperor”: III. Rondo
album: Lullabies for Mila
album: Alessio Bax plays Mozart
album: Ultimate Relaxing Classics
album: The Mozart Collection: Study
album: The Essentials: Mozart
album: Surrender: Voices of Persephone
album: Andrew Kennedy Sings Arias by Mozart, Gluck & Berlioz
album: Prokofiev & Shchedrin: Works for Cello and Orchestra
album: Classical Music for Kids: Mozart
album: 50 Ultimate Calming Classics
album: A to Z of String Players
album: Bloch: Violin Sonatas Nos. 1 and 2 / Suite Hebraique
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Lullabies for Mila
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track: Flute Sonata in E-Flat Major, BWV 1031: Siciliano (Arr. Alexander Siloti)
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track: 8 Klavierstücke, Op. 76 No. 6: Intermezzo in A Major
track: Waltz in A-Flat Major, Op. 39 No. 15
track: Waltz in E Major, Op. 39 No. 2
track: Vocalise, Op. 34, No. 14 (arr. Alessio Bax)
track: Sonata No. 14 in C-Sharp Minor, Op. 27, No. 2 "Moonlight": II. Allegretto
track: Keyboard Concerto in F Minor, BWV 1056: Largo (Trans. Alessio Bax)
track: 8 Klavierstücke, Op. 76 No. 3: Intermezzo in A-Flat Major
track: Violin Sonata No. 1 in G Minor, BWV 1001: Siciliana (Trans. Leopold Godowsky)
track: Violin Sonata No. 2 in A Minor, BWV 1003: Andante (Trans. Alexander Siloti)
track: Prelude for Left Hand Alone, Op. 9
track: Prelude in G-Flat Major, Op. 23 No. 10
track: Piano Concerto No. 27 in B-Flat Major, K. 595: II. Larghetto

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OpenTimestamps Proof of Existence
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date published: 2026-06-13T12:47:07Z

Orchestral Suite No. 3 in D Major, BWV 1068: Air (Arr. Alexander Siloti)
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Flute Sonata in E-Flat Major, BWV 1031: Siciliano (Arr. Alexander Siloti)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T11:07:37Z
audio: Flute Sonata in E-Flat Major, BWV 1031: Siciliano (Arr. Alexander Siloti)
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Sheep May Safely Graze, BWV 208 (arr. Egon Petri)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
audio: Sheep May Safely Graze, BWV 208 (arr. Egon Petri)
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8 Klavierstücke, Op. 76 No. 6: Intermezzo in A Major
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subject of: OpenTimestamps Proof of Existence
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audio: 8 Klavierstücke, Op. 76 No. 6: Intermezzo in A Major
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Waltz in A-Flat Major, Op. 39 No. 15
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by artist: Alessio Bax
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Waltz in A-Flat Major, Op. 39 No. 15
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Waltz in E Major, Op. 39 No. 2
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Waltz in E Major, Op. 39 No. 2
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Vocalise, Op. 34, No. 14 (arr. Alessio Bax)
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Sonata No. 14 in C-Sharp Minor, Op. 27, No. 2 "Moonlight": II. Allegretto
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  date published: 2026-07-07T11:43:09Z
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Keyboard Concerto in F Minor, BWV 1056: Largo (Trans. Alessio Bax)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-22T11:35:32Z
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8 Klavierstücke, Op. 76 No. 3: Intermezzo in A-Flat Major
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-22T13:20:46Z
audio: 8 Klavierstücke, Op. 76 No. 3: Intermezzo in A-Flat Major
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Violin Sonata No. 1 in G Minor, BWV 1001: Siciliana (Trans. Leopold Godowsky)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
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Violin Sonata No. 2 in A Minor, BWV 1003: Andante (Trans. Alexander Siloti)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:53:57Z
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Prelude for Left Hand Alone, Op. 9
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subject of: OpenTimestamps Proof of Existence
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audio: Prelude for Left Hand Alone, Op. 9
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Prelude in G-Flat Major, Op. 23 No. 10
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subject of: OpenTimestamps Proof of Existence
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Alessio Bax plays Mozart
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Piano Concerto No. 27 in B-Flat Major, K. 595: II. Larghetto
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0b8dd2412ec5f0bc1bba92992f1b5fc854f65dffc659558920f89e432cb2c5. 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/USB8U1601061.
    date published: 2026-07-08T03:20:19Z
  audio: Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": I. Allegro
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track: Piano Sonata No. 11 in A Major, K. 331: III. Rondo, "Alla turca"
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  duration: PT3M45S
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  by artist: Wolfgang Amadeus Mozart
  by artist: Alessandro Deljavan
  in album: The Essentials: Mozart
    type: MusicAlbum
    date published: 2016-04-29
  popularity: 5
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
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  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960138
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1601066
  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f237a552228353656341cea876ba55be8f24c73efa1feb4393b66b1071371c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USB8U1601066.
    date published: 2026-07-29T19:35:34Z
  audio: Piano Sonata No. 11 in A Major, K. 331: III. Rondo, "Alla turca"
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track: Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
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  by artist: Wolfgang Amadeus Mozart
  by artist: Bavarian Radio Symphony Orchestra
  by artist: Rafael Kubelík
  in album: The Essentials: Mozart
    type: MusicAlbum
    date published: 2016-04-29
  popularity: 2
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: USB8U1601067
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
track: Serenade No. 10 in B-Flat Major, K. 361, "Gran Partita": IV. Adagio
track: Masonic Funeral Music, K. 477: Maurerische Trauermusik (Masonic Funeral Music), K. 477
track: Serenade No. 6 in D Major, K. 239, "Serenata Notturna": I. Marcia: Maestoso
track: String Quartet No. 19 in C Major, K. 465, "Dissonance": I. Adagio - Allegro
track: Piano Sonata No. 18 in D Major, K. 576: II. Adagio
track: Ave Verum Corpus, K. 618: Ave verum corpus, K. 618
track: Don Giovanni, K. 527: Overture
track: Così fan tutte, K. 588: Overture
track: Die Zauberflöte, K. 620: Act II: Der Holle Rache kocht in meinen Herzen
track: Le nozze di Figaro (The Marriage of Figaro), K. 492, Act I: Aria: Non più andrai, farfallone amoroso
track: Idomeneo, re di Creta, K. 366: Overture
track: Il rè pastore, K. 208: Il re pastore, K. 208, Act I: Aria: Aer tranquilo e disereni

CopyrightID
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CopyrightStatus
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CopyrightRegisteredAt
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CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x0b4507ee74ec40c8f327b6f41767c8442442816f44fe80463dfcf4b3777dd285

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 957118

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1601067

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4507ee74ec40c8f327b6f41767c8442442816f44fe80463dfcf4b3777dd285. 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/USB8U1601067.
date published: 2026-07-08T03:20:19Z

Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Instrumentalness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Serenade No. 10 in B-Flat Major, K. 361, "Gran Partita": IV. Adagio
type: MusicRecording
duration: PT5M57S
duration ms: 357000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: German Wind Soloists
by artist: Richard Edlinger
in album: The Essentials: Mozart
  type: MusicAlbum
  date published: 2016-04-29
popularity: 6
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1601070
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T07:12:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957039
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1601070
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T12:58:18Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48ec46e9c076268ead30b0055dfc1a811cdad1c6e9d68325250754f1b2ec694. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/USB8U1601070.
  date published: 2026-07-07T12:58:18Z
audio: Serenade No. 10 in B-Flat Major, K. 361, "Gran Partita": IV. Adagio
  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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Masonic Funeral Music, K. 477: Maurerische Trauermusik (Masonic Funeral Music), K. 477
type: MusicRecording
duration: PT5M34S
duration ms: 334173
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bamberg Symphony
by artist: Eugen Jochum
in album: The Essentials: Mozart
  type: MusicAlbum
  date published: 2016-04-29
popularity: 3
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1601072
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T01:22:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960185
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1601072
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T01:32:48Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69251177ebeec2de0e8ef8f687304f8137140974218de290a4ef7973d98b8a8a. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/USB8U1601072.
  date published: 2026-07-30T01:32:48Z
audio: Masonic Funeral Music, K. 477: Maurerische Trauermusik (Masonic Funeral Music), K. 477
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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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: Key Name
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  additional property: Mode Name
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Serenade No. 6 in D Major, K. 239, "Serenata Notturna": I. Marcia: Maestoso
type: MusicRecording
duration: PT4M14S
duration ms: 254000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Swedish Chamber Orchestra
by artist: Petter Sundkvist
in album: The Essentials: Mozart
  type: MusicAlbum
  date published: 2016-04-29
popularity: 3
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1601075
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
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1601075
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f58ca7e41b5c660474072ad9fee4de88e25225aa12633562fbf2cbfc9072aa. 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/USB8U1601075.
  date published: 2026-07-08T03:20:19Z
audio: Serenade No. 6 in D Major, K. 239, "Serenata Notturna": I. Marcia: Maestoso
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  additional property: Valence (Positivity)
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String Quartet No. 19 in C Major, K. 465, "Dissonance": I. Adagio - Allegro
type: MusicRecording
duration: PT10M55S
duration ms: 655506
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Moyzesovo kvarteto
in album: The Essentials: Mozart
  type: MusicAlbum
  date published: 2016-04-29
popularity: 3
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1601077
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
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960193
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1601077
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T02:05:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T02:05:19Z
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Piano Sonata No. 18 in D Major, K. 576: II. Adagio
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by artist: Gianluca Luisi
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T13:09:35Z
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Ave Verum Corpus, K. 618: Ave verum corpus, K. 618
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  date published: 2016-04-29
popularity: 5
genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T19:35:34Z
audio: Ave Verum Corpus, K. 618: Ave verum corpus, K. 618
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Don Giovanni, K. 527: Overture
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popularity: 2
genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T02:51:48Z
audio: Don Giovanni, K. 527: Overture
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Così fan tutte, K. 588: Overture
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Die Zauberflöte, K. 620: Act II: Der Holle Rache kocht in meinen Herzen
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popularity: 2
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T14:36:16Z
audio: Die Zauberflöte, K. 620: Act II: Der Holle Rache kocht in meinen Herzen
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Le nozze di Figaro (The Marriage of Figaro), K. 492, Act I: Aria: Non più andrai, farfallone amoroso
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T18:23:33Z
audio: Le nozze di Figaro (The Marriage of Figaro), K. 492, Act I: Aria: Non più andrai, farfallone amoroso
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Idomeneo, re di Creta, K. 366: Overture
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subject of: OpenTimestamps Proof of Existence
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Surrender: Voices of Persephone
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Andrew Kennedy Sings Arias by Mozart, Gluck & Berlioz
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    date published: 2026-08-01T01:44:32Z
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Prokofiev & Shchedrin: Works for Cello and Orchestra
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Classical Music for Kids: Mozart
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  subject of: OpenTimestamps Proof of Existence
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track: Concerto for Flute and Harp in C Major, K. 299: II. Andantino
track: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": III. Menuetto: Allegretto - Trio - Menuetto da capo
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track: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": IV. Rondo: Allegro
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track: Die Zauberflöte, K. 620: Act II: Arie: Ein Madchen oder Weibchen wunscht Papageno sich! (Papageno)
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track: Piano Sonata No. 14 in C Minor, K. 457: I. Molto allegro
track: Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": III. Rondo
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track: Symphony No. 41 in C Major, K. 551 "Jupiter": I. Allegro vivace
track: Serenade No. 7 in D Major, K. 250 "Haffner": I. Allegro maestoso
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track: Symphony No. 41 in C Major, K. 551 "Jupiter": IV. Molto Allegro
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date published: 2026-07-06T06:56:49Z

Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": II. Romanze: Andante
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Concerto for Flute and Harp in C Major, K. 299: II. Andantino
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  date published: 2026-07-08T03:20:19Z
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Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": III. Menuetto: Allegretto - Trio - Menuetto da capo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Violin Concerto No. 3 in G Major, K. 216: II. Adagio
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subject of: OpenTimestamps Proof of Existence
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Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": IV. Rondo: Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T02:05:19Z
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Clarinet Concerto in A Major, K. 622: II. Adagio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Clarinet Concerto in A Major, K. 622: II. Adagio
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Die Zauberflöte, K. 620: Act II: Arie: Ein Madchen oder Weibchen wunscht Papageno sich! (Papageno)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T11:13:28Z
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Oboe Quartet in F Major, K. 370 (Arr. for Flute Quartet): I. Allegro
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  date published: 2026-07-31T05:17:02Z
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Die Zauberflöte, K. 620: Act II: Pa-Pa-Pa-Pa-Pa-Pa-Papagena! (Papageno, Papagena)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T14:50:41Z
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Oboe Quartet in F Major, K. 370 (Arr. for Flute Quartet): II. Adagio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T23:51:35Z
audio: Oboe Quartet in F Major, K. 370 (Arr. for Flute Quartet): II. Adagio
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Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": I. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T09:58:01Z
audio: Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": I. Allegro
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Oboe Quartet in F Major, K. 370 (Arr. for Flute Quartet): III. Rondeau: Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": II. Andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T16:10:47Z
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Piano Sonata No. 14 in C Minor, K. 457: I. Molto allegro
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89aef8a9d3c6fe76a5664ffea62f75dea1f006086684f4b7424036ef5e780589. 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/USB8U1612655.
  date published: 2026-07-08T03:20:19Z
audio: Piano Sonata No. 14 in C Minor, K. 457: I. Molto allegro
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 107.872
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.475
  additional property: Energy
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    value: 0.06
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.917
  additional property: Liveness
    type: PropertyValue
    value: 0.116
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.312
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.857
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": III. Rondo
type: MusicRecording
duration: PT1M31S
duration ms: 91093
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Jenő Jandó
in album: Classical Music for Kids: Mozart
  type: MusicAlbum
  date published: 2016-11-18
popularity: 5
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1612640
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T21:03:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x88cbbf0faa94d62019973b446cd22167a7b0f7e0f9e6f0313e887408b7e9a25e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1612640
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cbbf0faa94d62019973b446cd22167a7b0f7e0f9e6f0313e887408b7e9a25e. 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/USB8U1612640.
  date published: 2026-07-08T03:20:19Z
audio: Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": III. Rondo
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 124.168
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.496
  additional property: Energy
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    value: 0.152
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.901
  additional property: Liveness
    type: PropertyValue
    value: 0.115
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.622
  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Piano Sonata No. 14 in C Minor, K. 457: II. Adagio
type: MusicRecording
duration: PT8M21S
duration ms: 501333
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Seiko Tsukamoto
in album: Classical Music for Kids: Mozart
  type: MusicAlbum
  date published: 2016-11-18
popularity: 2
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1612656
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T07:33:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd616a5cce0334bbb8f3c0d4d18aad893de041b72e333583f232b63c1cc72b867
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960368
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960368
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1612656
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd616a5cce0334bbb8f3c0d4d18aad893de041b72e333583f232b63c1cc72b867. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USB8U1612656.
  date published: 2026-07-31T08:26:41Z
audio: Piano Sonata No. 14 in C Minor, K. 457: II. Adagio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.566
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.416
  additional property: Energy
    type: PropertyValue
    value: 0.014
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.995
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.905
  additional property: Liveness
    type: PropertyValue
    value: 0.084
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.248
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.779
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Piano Sonata No. 14 in C Minor, K. 457: III. Allegro assai
type: MusicRecording
duration: PT4M39S
duration ms: 279840
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Seiko Tsukamoto
in album: Classical Music for Kids: Mozart
  type: MusicAlbum
  date published: 2016-11-18
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1612657
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T23:38:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8eb2e41f92e6b1ce043fcd1d6764e66cfffca194f853155e22da511b0269a216
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960481
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960481
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1612657
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:51:35Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb2e41f92e6b1ce043fcd1d6764e66cfffca194f853155e22da511b0269a216. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1612657.
  date published: 2026-07-31T23:51:35Z
audio: Piano Sonata No. 14 in C Minor, K. 457: III. Allegro assai
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.99
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.444
  additional property: Energy
    type: PropertyValue
    value: 0.094
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.905
  additional property: Liveness
    type: PropertyValue
    value: 0.113
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.142
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.514
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Symphony No. 41 in C Major, K. 551 "Jupiter": I. Allegro vivace
type: MusicRecording
duration: PT11M38S
duration ms: 698000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Mozarteum Orchestra Salzburg
by artist: Hans Graf
in album: Classical Music for Kids: Mozart
  type: MusicAlbum
  date published: 2016-11-18
popularity: 5
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1612641
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T02:28:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe2c313cb12f205b3cef0cdd225031b4d481949c215df85e0a5bb970da6007478
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960203
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960203
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1612641
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T03:35:13Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c313cb12f205b3cef0cdd225031b4d481949c215df85e0a5bb970da6007478. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USB8U1612641.
  date published: 2026-07-30T03:35:13Z
audio: Symphony No. 41 in C Major, K. 551 "Jupiter": I. Allegro vivace
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.518
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.354
  additional property: Energy
    type: PropertyValue
    value: 0.149
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.857
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.896
  additional property: Liveness
    type: PropertyValue
    value: 0.082
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.248
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.134
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Serenade No. 7 in D Major, K. 250 "Haffner": I. Allegro maestoso
type: MusicRecording
duration: PT9M40S
duration ms: 580640
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Camerata Salzburg
by artist: Sándor Végh
in album: Classical Music for Kids: Mozart
  type: MusicAlbum
  date published: 2016-11-18
popularity: 2
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1612658
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T18:46:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x27499546daa783511f6e0aefae72412e3d3dc3a7a6496cd500495a465cc7debd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960455
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960455
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1612658
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T19:53:13Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27499546daa783511f6e0aefae72412e3d3dc3a7a6496cd500495a465cc7debd. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USB8U1612658.
  date published: 2026-07-31T19:53:13Z
audio: Serenade No. 7 in D Major, K. 250 "Haffner": I. Allegro maestoso
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.704
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.38
  additional property: Energy
    type: PropertyValue
    value: 0.149
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.922
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.886
  additional property: Liveness
    type: PropertyValue
    value: 0.119
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.28
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.873
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Symphony No. 41 in C Major, K. 551 "Jupiter": II. Andante cantabile
type: MusicRecording
duration: PT13M25S
duration ms: 805000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Mozarteum Orchestra Salzburg
by artist: Hans Graf
in album: Classical Music for Kids: Mozart
  type: MusicAlbum
  date published: 2016-11-18
popularity: 5
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1612642
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T19:27:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2df670c8a35abca282d5bb5000cf24587945a6cc09258f7d4a87643d6b25e4d2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960138
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960138
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1612642
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T19:35:34Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df670c8a35abca282d5bb5000cf24587945a6cc09258f7d4a87643d6b25e4d2. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USB8U1612642.
  date published: 2026-07-29T19:35:34Z
audio: Symphony No. 41 in C Major, K. 551 "Jupiter": II. Andante cantabile
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.835
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.082
  additional property: Energy
    type: PropertyValue
    value: 0.027
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.87
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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Symphony No. 41 in C Major, K. 551 "Jupiter": III. Menuetto: Allegretto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T07:28:30Z
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Rondo in D Major, K. 485
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T23:30:38Z
audio: Rondo in D Major, K. 485
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Symphony No. 41 in C Major, K. 551 "Jupiter": IV. Molto Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T19:35:34Z
audio: Symphony No. 41 in C Major, K. 551 "Jupiter": IV. Molto Allegro
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Clarinet Quintet in A Major, K. 581: I. Allegro
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popularity: 2
genre: classical
genre: classical-era
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T20:42:35Z
audio: Clarinet Quintet in A Major, K. 581: I. Allegro
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Sonata for Piano 4 Hands in C Major, K. 521: I. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T06:42:11Z
audio: Sonata for Piano 4 Hands in C Major, K. 521: I. Allegro
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Piano Concerto No. 24 in C Minor, K. 491: I. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:59:18Z
audio: Piano Concerto No. 24 in C Minor, K. 491: I. Allegro
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Sonata for Piano 4 Hands in C Major, K. 521: II. Andante
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Piano Concerto No. 24 in C Minor, K. 491: II. Larghetto
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Sonata for Piano 4 Hands in C Major, K. 521: III. Allegretto
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  date published: 2026-07-31T12:24:41Z
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50 Ultimate Calming Classics
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A to Z of String Players
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Bloch: Violin Sonatas Nos. 1 and 2 / Suite Hebraique
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Opera: 40 Overtures
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