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genre: chamber music
genre: classical
description: Isabelle Faust (born 19 March 1972) is a German violinist who has worked internationally as a soloist and chamber musician. She has received multiple awards. Life and career Faust was born in Essli
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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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  track: Piano Quartet in E-Flat Major, Op. 47: IV. Finale. Vivace
  track: Piano Quintet in E-Flat Major, Op. 44: I. Allegro brillante
  track: Piano Quintet in E-Flat Major, Op. 44: II. In modo d'una Marcia. Un poco largamente
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album: J.S. Bach: Brandenburg Concertos
album: Debussy: Les Trois Sonates, The Late Works
album: Felix Mendelssohn & George Enescu: Octets for Strings (Live)
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album: Mendelssohn: Violin Concerto; Symphony No. 5 "Reformation" & The Hebrides
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album: Schumann: Violin Concerto; Piano Trio No. 3
album: Stravinsky: Violin Concerto & Chamber Works
album: Ondřej Adámek: Follow Me & Where Are You?
album: Britten: Violin Concerto, Chamber Works
album: Solo: Matteis - Pisendel - Biber - Guillemain - Vilsmayr
album: Locatelli: il virtuoso, il poeta (Violin Concertos & Concerti Grossi)
album: György Kurtág: Kafka-Fragmente
album: Christmas with Bach
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album: Stravinsky: Die Geschichte vom Soldaten (Deutsche Fassung). Élégie. Duo concertant
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
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  date published: 2026-07-02T03:55:08Z
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Piano Quintet in E-Flat Major, Op. 44: III. Scherzo. Molto vivace
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Piano Quintet in E-Flat Major, Op. 44: IV. Allegro ma non troppo
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J.S. Bach: Brandenburg Concertos
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track: Brandenburg Concerto No. 4 in G Major, BWV 1049: I. Allegro
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track: Brandenburg Concerto No. 4 in G Major, BWV 1049: II. Andante
track: Brandenburg Concerto No. 1 in F Major, BWV 1046: III. Allegro
track: Brandenburg Concerto No. 4 in G Major, BWV 1049: III. Presto
track: Brandenburg Concerto No. 1 in F Major, BWV 1046: IV. Menuet - Trio I - Polonaise - Trio II
track: Brandenburg Concerto No. 5 in D Major, BWV 1050: I. Allegro
track: Brandenburg Concerto No. 2 in F Major, BWV 1047: I. [Ohne Satzbezeichnung]
track: Brandenburg Concerto No. 5 in D Major, BWV 1050: II. Affettuoso
track: Brandenburg Concerto No. 2 in F Major, BWV 1047: II. Andante
track: Brandenburg Concerto No. 5 in D Major, BWV 1050: III. Allegro
track: Brandenburg Concerto No. 2 in F Major, BWV 1047: III. Allegro assai
track: Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: I. [Ohne Satzbezeichnung]
track: Brandenburg Concerto No. 3 in G Major, BWV 1048: I. [Ohne Satzbezeichnung]
track: Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non tanto
track: Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: III. Allegro
track: Brandenburg Concerto No. 3 in G Major, BWV 1048: III. Allegro

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by artist: Akademie für Alte Musik Berlin
by artist: Isabelle Faust
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genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
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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: Brandenburg Concerto No. 4 in G Major, BWV 1049: II. Andante
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Brandenburg Concerto No. 1 in F Major, BWV 1046: III. Allegro
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by artist: Akademie für Alte Musik Berlin
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-22T14:03:35Z
audio: Brandenburg Concerto No. 1 in F Major, BWV 1046: III. Allegro
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Brandenburg Concerto No. 4 in G Major, BWV 1049: III. Presto
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by artist: Johann Sebastian Bach
by artist: Akademie für Alte Musik Berlin
by artist: Isabelle Faust
in album: J.S. Bach: Brandenburg Concertos
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genre: classical
genre: classical-piano
genre: early-music
genre: baroque
genre: chamber-music
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Brandenburg Concerto No. 4 in G Major, BWV 1049: III. Presto
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Brandenburg Concerto No. 1 in F Major, BWV 1046: IV. Menuet - Trio I - Polonaise - Trio II
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by artist: Akademie für Alte Musik Berlin
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genre: classical
genre: classical-piano
genre: early-music
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
audio: Brandenburg Concerto No. 1 in F Major, BWV 1046: IV. Menuet - Trio I - Polonaise - Trio II
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Brandenburg Concerto No. 5 in D Major, BWV 1050: I. Allegro
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by artist: Akademie für Alte Musik Berlin
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genre: early-music
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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: 2026-07-06T06:56:49Z
audio: Brandenburg Concerto No. 5 in D Major, BWV 1050: I. Allegro
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Brandenburg Concerto No. 2 in F Major, BWV 1047: I. [Ohne Satzbezeichnung]
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by artist: Akademie für Alte Musik Berlin
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genre: classical
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genre: early-music
genre: baroque
genre: chamber-music
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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: 2026-07-29T11:30:20Z
audio: Brandenburg Concerto No. 2 in F Major, BWV 1047: I. [Ohne Satzbezeichnung]
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Brandenburg Concerto No. 5 in D Major, BWV 1050: II. Affettuoso
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by artist: Akademie für Alte Musik Berlin
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genre: classical
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genre: early-music
genre: baroque
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subject of: OpenTimestamps Proof of Existence
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Brandenburg Concerto No. 2 in F Major, BWV 1047: II. Andante
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  date published: 2026-07-06T06:56:49Z
audio: Brandenburg Concerto No. 2 in F Major, BWV 1047: II. Andante
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Brandenburg Concerto No. 5 in D Major, BWV 1050: III. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T13:38:16Z
audio: Brandenburg Concerto No. 5 in D Major, BWV 1050: III. Allegro
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Brandenburg Concerto No. 2 in F Major, BWV 1047: III. Allegro assai
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
audio: Brandenburg Concerto No. 2 in F Major, BWV 1047: III. Allegro assai
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Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: I. [Ohne Satzbezeichnung]
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subject of: OpenTimestamps Proof of Existence
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Brandenburg Concerto No. 3 in G Major, BWV 1048: I. [Ohne Satzbezeichnung]
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subject of: OpenTimestamps Proof of Existence
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audio: Brandenburg Concerto No. 3 in G Major, BWV 1048: I. [Ohne Satzbezeichnung]
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Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non tanto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T21:09:47Z
audio: Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: II. Adagio ma non tanto
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Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: III. Allegro
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subject of: OpenTimestamps Proof of Existence
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audio: Brandenburg Concerto No. 6 in B-Flat Major, BWV 1051: III. Allegro
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subject of: OpenTimestamps Proof of Existence
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Debussy: Les Trois Sonates, The Late Works
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-07T10:59:31Z
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track: Berceuse héroïque, L. 132: Pour piano. Modéré (sans lenteur)
track: Pièce pour le Vêtement du blessé, L. 133: Modéré
track: Sonata for Flute, Viola and Harp in F Major, L. 137: I. Pastorale. Lento, dolce rubato
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track: Élégie, L. 138: Pour piano. Lent et douloureux
track: Cello Sonata in D Minor, L. 135: I. Prologue. Lent. Sostenuto e molto risoluto
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track: Les Soirs illuminés par l'ardeur du charbon in A-flat major, CD. 150: Pour piano. Lent et rêveur

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Berceuse héroïque, L. 132: Pour piano. Modéré (sans lenteur)
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Pièce pour le Vêtement du blessé, L. 133: Modéré
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  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 0x417b56c14574faa4bda32964b29f2e1eb158777ae2068e6a46a5adc14549e3e8. 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/FR7JM1740050.
  date published: 2026-07-31T08:26:41Z
audio: Pièce pour le Vêtement du blessé, L. 133: Modéré
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  additional property: Danceability
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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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Sonata for Flute, Viola and Harp in F Major, L. 137: I. Pastorale. Lento, dolce rubato
type: MusicRecording
duration: PT6M55S
duration ms: 415653
explicit: false
by artist: Claude Debussy
by artist: Magali Mosnier
by artist: Antoine Tamestit
by artist: Xavier De Maistre
in album: Debussy: Les Trois Sonates, The Late Works
  type: MusicAlbum
  date published: 2018-10-05
genre: classical
genre: impressionism
genre: post-romantic-era
isrc code: FR7JM1740060
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T08:47:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3a2db411ca55620ed32ce9548ded852db67e6d3f1ca80fa56d079ce9159ed2aa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960236
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960236
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM1740060
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T09:37:10Z
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 0x3a2db411ca55620ed32ce9548ded852db67e6d3f1ca80fa56d079ce9159ed2aa. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/FR7JM1740060.
  date published: 2026-07-30T09:37:10Z
audio: Sonata for Flute, Viola and Harp in F Major, L. 137: I. Pastorale. Lento, dolce rubato
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.516
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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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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Sonata for Flute, Viola and Harp in F Major, L. 137: II. Interlude. Tempo di minuetto
type: MusicRecording
duration: PT5M58S
duration ms: 358213
explicit: false
by artist: Claude Debussy
by artist: Magali Mosnier
by artist: Antoine Tamestit
by artist: Xavier De Maistre
in album: Debussy: Les Trois Sonates, The Late Works
  type: MusicAlbum
  date published: 2018-10-05
genre: classical
genre: impressionism
genre: post-romantic-era
isrc code: FR7JM1740070
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:30:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x317251535adb7801ad5b90c048d78539a45c475b91bd11e33002f2a558076dc0
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/FR7JM1740070
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 0x317251535adb7801ad5b90c048d78539a45c475b91bd11e33002f2a558076dc0. 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/FR7JM1740070.
  date published: 2026-07-08T03:20:19Z
audio: Sonata for Flute, Viola and Harp in F Major, L. 137: II. Interlude. Tempo di minuetto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.052
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.284
  additional property: Key Name
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  additional property: Mode Name
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Sonata for Flute, Viola and Harp in F Major, L. 137: III. Finale. Allegro moderato ma risoluto
type: MusicRecording
duration: PT4M40S
duration ms: 280200
explicit: false
by artist: Claude Debussy
by artist: Magali Mosnier
by artist: Antoine Tamestit
by artist: Xavier De Maistre
in album: Debussy: Les Trois Sonates, The Late Works
  type: MusicAlbum
  date published: 2018-10-05
genre: classical
genre: impressionism
genre: post-romantic-era
isrc code: FR7JM1740080
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960360
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM1740080
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T06:42:11Z
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 0x685dd3009c58e16b71b461cc1eea78562cc1fc05a57924dad86962b2de9dcbb7. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/FR7JM1740080.
  date published: 2026-07-31T06:42:11Z
audio: Sonata for Flute, Viola and Harp in F Major, L. 137: III. Finale. Allegro moderato ma risoluto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
    value: 0.391
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.092
  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
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Élégie, L. 138: Pour piano. Lent et douloureux
type: MusicRecording
duration: PT2M23S
duration ms: 143226
explicit: false
by artist: Claude Debussy
by artist: Tanguy de Williencourt
in album: Debussy: Les Trois Sonates, The Late Works
  type: MusicAlbum
  date published: 2018-10-05
genre: classical
genre: impressionism
genre: post-romantic-era
isrc code: FR7JM1740090
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T20:03:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x89cdd1229ac2820078e30643f8584e54e37d633a25ccb0c2aa22eb216ccf9a09
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960459
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM1740090
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T20:22:46Z
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 0x89cdd1229ac2820078e30643f8584e54e37d633a25ccb0c2aa22eb216ccf9a09. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/FR7JM1740090.
  date published: 2026-07-31T20:22:46Z
audio: Élégie, L. 138: Pour piano. Lent et douloureux
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.351
  additional property: Energy
    type: PropertyValue
    value: 0.002
  additional property: Speechiness
    type: PropertyValue
    value: 0.057
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.903
  additional property: Liveness
    type: PropertyValue
    value: 0.088
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.266
  additional property: Loudness (dB)
    type: PropertyValue
    value: -40.012
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
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Cello Sonata in D Minor, L. 135: I. Prologue. Lent. Sostenuto e molto risoluto
type: MusicRecording
duration: PT4M44S
duration ms: 284266
explicit: false
by artist: Claude Debussy
by artist: Jean-Guihen Queyras
by artist: Javier Perianes
in album: Debussy: Les Trois Sonates, The Late Works
  type: MusicAlbum
  date published: 2018-10-05
genre: classical
genre: impressionism
genre: post-romantic-era
isrc code: FR7JM1740100
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:34:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2d7a7e50274d008c04e9d1063b6b033943d425a26f99258afaee6716af5ae043
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/FR7JM1740100
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 0x2d7a7e50274d008c04e9d1063b6b033943d425a26f99258afaee6716af5ae043. 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/FR7JM1740100.
  date published: 2026-07-08T03:20:19Z
audio: Cello Sonata in D Minor, L. 135: I. Prologue. Lent. Sostenuto e molto risoluto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.723
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.752
  additional property: Key Name
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  additional property: Mode Name
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Cello Sonata in D Minor, L. 135: II. Sérénade. Modérément animé. Fantasque et léger
type: MusicRecording
duration: PT3M54S
duration ms: 234160
explicit: false
by artist: Claude Debussy
by artist: Jean-Guihen Queyras
by artist: Javier Perianes
in album: Debussy: Les Trois Sonates, The Late Works
  type: MusicAlbum
  date published: 2018-10-05
genre: classical
genre: impressionism
genre: post-romantic-era
isrc code: FR7JM1740110
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
  type: PropertyValue
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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/FR7JM1740110
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 0x7731c5d769498403e33c47b8c360e1e1910f7e6548bf3061289ed638bf0814f8. 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/FR7JM1740110.
  date published: 2026-07-08T03:20:19Z
audio: Cello Sonata in D Minor, L. 135: II. Sérénade. Modérément animé. Fantasque et léger
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-06T06:56:49Z
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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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track: Octet in E-Flat Major, Op. 20, MWV R20: IV. Presto - Live
track: Octet in C Major, Op. 7: I. Très modéré - Live
track: Octet in C Major, Op. 7: II. Très fougueux - Live
track: Octet in C Major, Op. 7: III. Lentement - Live
track: Octet in C Major, Op. 7: IV. Mouvement de valse bien rythmée - Live

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Christian Tetzlaff
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Antje Weithaas
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Quirine Viersen
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Felix Mendelssohn & George Enescu: Octets for Strings (Live)
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OTSVerificationAPI
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OTSVerifyInstructions
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date published: 2026-07-30T03:35:13Z

Octet in E-Flat Major, Op. 20, MWV R20: III. Scherzo (Allegro leggierissimo) - Live
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Octet in E-Flat Major, Op. 20, MWV R20: IV. Presto - Live
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Octet in C Major, Op. 7: I. Très modéré - Live
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Octet in C Major, Op. 7: II. Très fougueux - Live
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Octet in C Major, Op. 7: III. Lentement - Live
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Octet in C Major, Op. 7: IV. Mouvement de valse bien rythmée - Live
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Beethoven: Triple Concerto, Op. 56 & Trio, Op. 36
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track: Triple Concerto in C Major, Op. 56: II. Largo
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track: Triple Concerto in C Major, Op. 56: III. Rondo alla Polacca
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track: Trio for piano, violin and cello after the Symphony No. 2 in D Major, Op. 36: I. Adagio. Allegro con brio
track: Trio for piano, violin and cello after the Symphony No. 2 in D Major, Op. 36: II. Larghetto quasi andante
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Triple Concerto in C Major, Op. 56: III. Rondo alla Polacca
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Trio for piano, violin and cello after the Symphony No. 2 in D Major, Op. 36: I. Adagio. Allegro con brio
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Trio for piano, violin and cello after the Symphony No. 2 in D Major, Op. 36: II. Larghetto quasi andante
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Trio for piano, violin and cello after the Symphony No. 2 in D Major, Op. 36: III. Scherzo. Trio
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Trio for piano, violin and cello after the Symphony No. 2 in D Major, Op. 36: IV. Allegro molto
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e67627b887ddbdd07810da78b50491225b5ce1ce640190b5e8bc948efa2c26. 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/FRZ170510020.
    date published: 2026-07-08T03:20:19Z
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  by artist: Isabelle Faust
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    type: MusicAlbum
    date published: 2017-08-25
  genre: classical
  genre: early-romantic-era
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  subject of: OpenTimestamps Proof of Existence
  audio: Violin Concerto in E Minor, Op. 64: III. Allegro molto vivace
track: The Hebrides, Op. 26, MWV P7
track: Symphony No. 5 in D Minor, Op. 107, MWV N15, "Reformation": I. Andante (Allegro con fuoco)
track: Symphony No. 5 in D Minor, Op. 107, MWV N15, "Reformation": II. Allegro vivace
track: Symphony No. 5 in D Minor, Op. 107, MWV N15, "Reformation": III. Andante
track: Symphony No. 5 in D Minor, Op. 107, MWV N15, "Reformation": IV. Choral "Ein fest Burg" (Andante con moto - Allegro vivace - Allegro maestoso)

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa724386fbb4d6ca9fec9103b80188c6367c988558cda6f227a67b471fbda8271. 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/FRZ170510030.
date published: 2026-07-29T19:35:34Z

Violin Concerto in E Minor, Op. 64: III. Allegro molto vivace
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The Hebrides, Op. 26, MWV P7
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duration: PT9M48S
duration ms: 588146
explicit: false
by artist: Felix Mendelssohn
by artist: Freiburger Barockorchester
by artist: Pablo Heras-Casado
in album: Mendelssohn: Violin Concerto; Symphony No. 5 "Reformation" & The Hebrides
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  date published: 2017-08-25
genre: classical
genre: early-romantic-era
genre: german-romanticism
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additional property: CopyrightID
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  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 0x2158ee8650f46f258994f79b86c260e3049477defee74f5d08ec290db24cdb55. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ170510040.
  date published: 2026-07-29T23:20:38Z
audio: The Hebrides, Op. 26, MWV P7
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Symphony No. 5 in D Minor, Op. 107, MWV N15, "Reformation": I. Andante (Allegro con fuoco)
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duration: PT10M32S
duration ms: 632133
explicit: false
by artist: Felix Mendelssohn
by artist: Freiburger Barockorchester
by artist: Pablo Heras-Casado
in album: Mendelssohn: Violin Concerto; Symphony No. 5 "Reformation" & The Hebrides
  type: MusicAlbum
  date published: 2017-08-25
genre: classical
genre: early-romantic-era
genre: german-romanticism
isrc code: FRZ170510050
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-30T15:42:38Z
audio: Symphony No. 5 in D Minor, Op. 107, MWV N15, "Reformation": I. Andante (Allegro con fuoco)
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Symphony No. 5 in D Minor, Op. 107, MWV N15, "Reformation": II. Allegro vivace
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duration: PT4M53S
duration ms: 293840
explicit: false
by artist: Felix Mendelssohn
by artist: Freiburger Barockorchester
by artist: Pablo Heras-Casado
in album: Mendelssohn: Violin Concerto; Symphony No. 5 "Reformation" & The Hebrides
  type: MusicAlbum
  date published: 2017-08-25
genre: classical
genre: early-romantic-era
genre: german-romanticism
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-31T02:51:48Z
audio: Symphony No. 5 in D Minor, Op. 107, MWV N15, "Reformation": II. Allegro vivace
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Symphony No. 5 in D Minor, Op. 107, MWV N15, "Reformation": III. Andante
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duration: PT3M24S
duration ms: 204253
explicit: false
by artist: Felix Mendelssohn
by artist: Freiburger Barockorchester
by artist: Pablo Heras-Casado
in album: Mendelssohn: Violin Concerto; Symphony No. 5 "Reformation" & The Hebrides
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genre: classical
genre: early-romantic-era
genre: german-romanticism
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additional property: CopyrightID
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99911adbd3e55833a70c96272a99826309bf253e865302a932e83268ed0d92c. 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/FRZ170510070.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 5 in D Minor, Op. 107, MWV N15, "Reformation": III. Andante
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Symphony No. 5 in D Minor, Op. 107, MWV N15, "Reformation": IV. Choral "Ein fest Burg" (Andante con moto - Allegro vivace - Allegro maestoso)
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by artist: Felix Mendelssohn
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by artist: Pablo Heras-Casado
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  date published: 2017-08-25
genre: classical
genre: early-romantic-era
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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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
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Piano Trio No. 3 in G Minor, Op. 110: I. Bewegt, doch nicht zu rasch
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T23:42:34Z
audio: Piano Trio No. 3 in G Minor, Op. 110: III. Rasch
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Piano Trio No. 3 in G Minor, Op. 110: IV. Kräftig, mit Humor
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duration: PT7M33S
duration ms: 453661
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by artist: Robert Schumann
by artist: Isabelle Faust
by artist: Jean-Guihen Queyras
by artist: Alexander Melnikov
in album: Schumann: Violin Concerto; Piano Trio No. 3
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genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T23:52:38Z
audio: Piano Trio No. 3 in G Minor, Op. 110: IV. Kräftig, mit Humor
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Stravinsky: Violin Concerto & Chamber Works
type: MusicAlbum
date published: 2023-03-03
track: Apollo, 2nd tableau: II. Variation of Apollo (Apollo and the Three Muses)
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-31T16:09:41Z
  audio: Apollo, 2nd tableau: II. Variation of Apollo (Apollo and the Three Muses)
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track: Violin Concerto in D Major: I. Toccata
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-29T19:35:34Z
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track: Violin Concerto in D Major: II. Aria I
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  subject of: OpenTimestamps Proof of Existence
  audio: Violin Concerto in D Major: II. Aria I
track: Violin Concerto in D Major: III. Aria II
track: Violin Concerto in D Major: IV. Capriccio
track: Three Pieces for String Quartet: I.
track: Three Pieces for String Quartet: II.
track: Three Pieces for String Quartet: III.
track: Concertino for String Quartet
track: Pastorale for Violin, Oboe, English Horn, Clarinet and Bassoon
track: Double Canon for String Quartet

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0164c963b7a7459b97806c09dcfa3198bb4c702828c6677a48dcd5825774f24d. 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/FR4KC2301003.
date published: 2026-07-08T03:20:19Z

Violin Concerto in D Major: II. Aria I
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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: Liveness
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additional property: Valence (Positivity)
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additional property: Key Name
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Violin Concerto in D Major: III. Aria II
type: MusicRecording
duration: PT6M1S
duration ms: 361026
explicit: false
by artist: Igor Stravinsky
by artist: Isabelle Faust
by artist: François-Xavier Roth
by artist: Les Siècles
in album: Stravinsky: Violin Concerto & Chamber Works
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae528a0de92c380598b525970168a0492d961d6440f38de7db4a30d451aae25. 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/FR4KC2301004.
  date published: 2026-07-08T03:20:19Z
audio: Violin Concerto in D Major: III. Aria II
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by artist: Igor Stravinsky
by artist: Isabelle Faust
by artist: François-Xavier Roth
by artist: Les Siècles
in album: Stravinsky: Violin Concerto & Chamber Works
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5afc905f9ca5de34f5fc4b855ab0311d0400a11b206ac108960fa410a5f6d1f. 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/FR4KC2301005.
  date published: 2026-07-08T03:20:19Z
audio: Violin Concerto in D Major: IV. Capriccio
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Three Pieces for String Quartet: I.
type: MusicRecording
duration: PT0M55S
duration ms: 55413
explicit: false
by artist: Igor Stravinsky
by artist: Isabelle Faust
by artist: Martial Gauthier
by artist: Carole Roth
by artist: Robin Michael
in album: Stravinsky: Violin Concerto & Chamber Works
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Three Pieces for String Quartet: I.
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Three Pieces for String Quartet: II.
type: MusicRecording
duration: PT2M6S
duration ms: 126800
explicit: false
by artist: Igor Stravinsky
by artist: Isabelle Faust
by artist: Martial Gauthier
by artist: Carole Roth
by artist: Robin Michael
in album: Stravinsky: Violin Concerto & Chamber Works
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T23:30:38Z
audio: Three Pieces for String Quartet: II.
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Three Pieces for String Quartet: III.
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duration: PT4M10S
duration ms: 250040
explicit: false
by artist: Igor Stravinsky
by artist: Isabelle Faust
by artist: Martial Gauthier
by artist: Carole Roth
by artist: Robin Michael
in album: Stravinsky: Violin Concerto & Chamber Works
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additional property: CopyrightID
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-08T03:20:19Z
audio: Three Pieces for String Quartet: III.
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Concertino for String Quartet
type: MusicRecording
duration: PT6M19S
duration ms: 379013
explicit: false
by artist: Igor Stravinsky
by artist: Isabelle Faust
by artist: Martial Gauthier
by artist: Carole Roth
by artist: Robin Michael
in album: Stravinsky: Violin Concerto & Chamber Works
  type: MusicAlbum
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isrc code: FR4KC2301009
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-31T13:04:34Z
audio: Concertino for String Quartet
  type: AudioObject
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  additional property: Mode (Major/Minor)
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Pastorale for Violin, Oboe, English Horn, Clarinet and Bassoon
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duration: PT2M58S
duration ms: 178533
explicit: false
by artist: Igor Stravinsky
by artist: Isabelle Faust
by artist: Les Siècles
by artist: Hélène Mourot
by artist: Stéphane Morvan
by artist: Christian Laborie
by artist: Michaël Rolland
in album: Stravinsky: Violin Concerto & Chamber Works
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-31T00:26:26Z
audio: Pastorale for Violin, Oboe, English Horn, Clarinet and Bassoon
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Double Canon for String Quartet
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duration: PT1M26S
duration ms: 86146
explicit: false
by artist: Igor Stravinsky
by artist: Isabelle Faust
by artist: Martial Gauthier
by artist: Carole Roth
by artist: Robin Michael
in album: Stravinsky: Violin Concerto & Chamber Works
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additional property: CopyrightID
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T19:53:13Z
audio: Double Canon for String Quartet
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Ondřej Adámek: Follow Me & Where Are You?
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date published: 2022-01-21

Britten: Violin Concerto, Chamber Works
type: MusicAlbum
date published: 2024-04-12
track: Violin Concerto, Op. 15: I. Moderato con moto – Agitato – Tempo primo - Live
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  by artist: Symphonieorchester des Bayerischen Rundfunks
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track: Reveille, concert study for violin with piano accompaniment
track: Suite for Violin and Piano, Op. 6: Introduction
track: Suite for Violin and Piano, Op. 6: I. March
track: Suite for Violin and Piano, Op. 6: II. Moto perpetuo
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track: Suite for Violin and Piano, Op. 6: IV. Waltz
track: Two Pieces for violin, viola and piano: I. Un poco andante
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Violin Concerto, Op. 15: III. Passacaglia. Andante lento (Un poco meno mosso) - Live
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Reveille, concert study for violin with piano accompaniment
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subject of: OpenTimestamps Proof of Existence
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Suite for Violin and Piano, Op. 6: Introduction
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Suite for Violin and Piano, Op. 6: I. March
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Suite for Violin and Piano, Op. 6: II. Moto perpetuo
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Suite for Violin and Piano, Op. 6: III. Lullaby
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subject of: OpenTimestamps Proof of Existence
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Suite for Violin and Piano, Op. 6: IV. Waltz
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subject of: OpenTimestamps Proof of Existence
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Two Pieces for violin, viola and piano: I. Un poco andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T08:30:10Z
audio: Two Pieces for violin, viola and piano: I. Un poco andante
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Two Pieces for violin, viola and piano: II. Allegro con molto moto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Two Pieces for violin, viola and piano: II. Allegro con molto moto
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Solo: Matteis - Pisendel - Biber - Guillemain - Vilsmayr
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track: Ayres for the Violin: Passaggio rotto - Andamento veloce
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track: Ayres for the Violin: Fantasia
track: Sonata for Solo Violin in A Minor: I. [Prelude]
track: Sonata for Solo Violin in A Minor: II. Allegro
track: Sonata for Solo Violin in A Minor: III. Giga
track: Sonata for Solo Violin in A Minor: IV. Variations
track: Amusement pour le violon seul, Op. 18: Allegro
track: Amusement pour le violon seul, Op. 18: Allegretto
track: Amusement pour le violon seul, Op. 18: Andantino
track: Amusement pour le violon seul, Op. 18: Allegro - Majestoso
track: Amusement pour le violon seul, Op. 18: Aria - Gratioso
track: Amusement pour le violon seul, Op. 18: Variatione
track: Amusement pour le violon seul, Op. 18: Altro
track: Amusement pour le violon seul, Op. 18: [Altro]
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track: Partita for Solo Violin No. 5 in G Minor: II. Gavotte
track: Partita for Solo Violin No. 5 in G Minor: III. Saraband
track: Partita for Solo Violin No. 5 in G Minor: IV. Rigodon
track: Partita for Solo Violin No. 5 in G Minor: V. Guiqß
track: Partita for Solo Violin No. 5 in G Minor: VI. Menuett
track: Partita for Solo Violin No. 5 in G Minor: VII. Boure
track: Partita for Solo Violin No. 5 in G Minor: VIII. Retirada
track: Rosary Sonatas: XVI. Passacaglia for Solo Violin in G Minor "The Guardian Angel"

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Ayres for the Violin: Passaggio rotto - Andamento veloce
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Ayres for the Violin: Fantasia
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Sonata for Solo Violin in A Minor: I. [Prelude]
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Sonata for Solo Violin in A Minor: II. Allegro
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Sonata for Solo Violin in A Minor: III. Giga
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Sonata for Solo Violin in A Minor: IV. Variations
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Amusement pour le violon seul, Op. 18: Allegro
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Amusement pour le violon seul, Op. 18: Allegretto
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by artist: Isabelle Faust
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genre: chamber-music
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Amusement pour le violon seul, Op. 18: Andantino
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explicit: false
by artist: Louis-Gabriel Guillemain
by artist: Isabelle Faust
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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: Amusement pour le violon seul, Op. 18: Andantino
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Amusement pour le violon seul, Op. 18: Allegro - Majestoso
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by artist: Isabelle Faust
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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: Amusement pour le violon seul, Op. 18: Allegro - Majestoso
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Amusement pour le violon seul, Op. 18: Aria - Gratioso
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by artist: Isabelle Faust
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T23:23:05Z
audio: Amusement pour le violon seul, Op. 18: Aria - Gratioso
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Amusement pour le violon seul, Op. 18: Variatione
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by artist: Isabelle Faust
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T05:15:54Z
audio: Amusement pour le violon seul, Op. 18: Variatione
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Amusement pour le violon seul, Op. 18: Altro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T06:39:12Z
audio: Amusement pour le violon seul, Op. 18: Altro
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Amusement pour le violon seul, Op. 18: [Altro]
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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  additional property: Speechiness
    type: PropertyValue
    value: 0.121
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.05
  additional property: Liveness
    type: PropertyValue
    value: 0.047
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.257
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.836
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Partita for Solo Violin No. 5 in G Minor: I. Prelude
type: MusicRecording
duration: PT1M4S
duration ms: 64080
explicit: false
by artist: Johann Joseph Vilsmayr
by artist: Isabelle Faust
in album: Solo: Matteis - Pisendel - Biber - Guillemain - Vilsmayr
  type: MusicAlbum
  date published: 2023-10-20
isrc code: FR7JM2007170
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T19:46:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd90ef5c73c6f55702a27020b60f290d77bdc8327b39082727e16356fff608d5d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960144
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960144
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2007170
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T21:09:47Z
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 0xd90ef5c73c6f55702a27020b60f290d77bdc8327b39082727e16356fff608d5d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FR7JM2007170.
  date published: 2026-07-29T21:09:47Z
audio: Partita for Solo Violin No. 5 in G Minor: I. Prelude
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.687
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.322
  additional property: Energy
    type: PropertyValue
    value: 0.064
  additional property: Speechiness
    type: PropertyValue
    value: 0.057
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.027
  additional property: Liveness
    type: PropertyValue
    value: 0.093
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.185
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.67
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Partita for Solo Violin No. 5 in G Minor: II. Gavotte
type: MusicRecording
duration: PT1M12S
duration ms: 72773
explicit: false
by artist: Johann Joseph Vilsmayr
by artist: Isabelle Faust
in album: Solo: Matteis - Pisendel - Biber - Guillemain - Vilsmayr
  type: MusicAlbum
  date published: 2023-10-20
isrc code: FR7JM2007180
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T23:22:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf79f83c73f5ebc58a85b2f81ec177ca36cb8ee72338999371b53df2142c32127
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960166
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960166
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2007180
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T23:39:29Z
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 0xf79f83c73f5ebc58a85b2f81ec177ca36cb8ee72338999371b53df2142c32127. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/FR7JM2007180.
  date published: 2026-07-29T23:39:29Z
audio: Partita for Solo Violin No. 5 in G Minor: II. Gavotte
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.778
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.474
  additional property: Energy
    type: PropertyValue
    value: 0.039
  additional property: Speechiness
    type: PropertyValue
    value: 0.059
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.123
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.783
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.788
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Partita for Solo Violin No. 5 in G Minor: III. Saraband
type: MusicRecording
duration: PT2M19S
duration ms: 139520
explicit: false
by artist: Johann Joseph Vilsmayr
by artist: Isabelle Faust
in album: Solo: Matteis - Pisendel - Biber - Guillemain - Vilsmayr
  type: MusicAlbum
  date published: 2023-10-20
isrc code: FR7JM2007190
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T19:34:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3a6bece2d84b2ec1501babddeccd4674c9a857e52cac88fc554f1aef3be7949c
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/FR7JM2007190
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 0x3a6bece2d84b2ec1501babddeccd4674c9a857e52cac88fc554f1aef3be7949c. 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/FR7JM2007190.
  date published: 2026-07-08T03:20:19Z
audio: Partita for Solo Violin No. 5 in G Minor: III. Saraband
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.189
  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: 0.268
  additional property: Energy
    type: PropertyValue
    value: 0.04
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.212
  additional property: Liveness
    type: PropertyValue
    value: 0.356
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.278
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.662
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Partita for Solo Violin No. 5 in G Minor: IV. Rigodon
type: MusicRecording
duration: PT1M12S
duration ms: 72173
explicit: false
by artist: Johann Joseph Vilsmayr
by artist: Isabelle Faust
in album: Solo: Matteis - Pisendel - Biber - Guillemain - Vilsmayr
  type: MusicAlbum
  date published: 2023-10-20
isrc code: FR7JM2007200
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:55:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfa4c275954917923bd4ee2d70dc77adce31ff9b7d3240a85c9723a49c3c51409
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/FR7JM2007200
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 0xfa4c275954917923bd4ee2d70dc77adce31ff9b7d3240a85c9723a49c3c51409. 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/FR7JM2007200.
  date published: 2026-07-08T03:20:19Z
audio: Partita for Solo Violin No. 5 in G Minor: IV. Rigodon
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.496
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.522
  additional property: Energy
    type: PropertyValue
    value: 0.077
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.046
  additional property: Liveness
    type: PropertyValue
    value: 0.087
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.583
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.561
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Partita for Solo Violin No. 5 in G Minor: V. Guiqß
type: MusicRecording
duration: PT0M37S
duration ms: 37440
explicit: false
by artist: Johann Joseph Vilsmayr
by artist: Isabelle Faust
in album: Solo: Matteis - Pisendel - Biber - Guillemain - Vilsmayr
  type: MusicAlbum
  date published: 2023-10-20
isrc code: FR7JM2007210
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T00:35:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf3ef339e5348e4fea7a95c74bde2815ed7dd2a542706ec860f1134db170b1db6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960181
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960181
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2007210
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T00:53:20Z
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 0xf3ef339e5348e4fea7a95c74bde2815ed7dd2a542706ec860f1134db170b1db6. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/FR7JM2007210.
  date published: 2026-07-30T00:53:20Z
audio: Partita for Solo Violin No. 5 in G Minor: V. Guiqß
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 94.36
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.571
  additional property: Energy
    type: PropertyValue
    value: 0.122
  additional property: Speechiness
    type: PropertyValue
    value: 0.109
  additional property: Acousticness
    type: PropertyValue
    value: 0.989
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.796
  additional property: Liveness
    type: PropertyValue
    value: 0.057
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.43
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.771
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Partita for Solo Violin No. 5 in G Minor: VI. Menuett
type: MusicRecording
duration: PT1M9S
duration ms: 69520
explicit: false
by artist: Johann Joseph Vilsmayr
by artist: Isabelle Faust
in album: Solo: Matteis - Pisendel - Biber - Guillemain - Vilsmayr
  type: MusicAlbum
  date published: 2023-10-20
isrc code: FR7JM2007220
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T09:35:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1a75bd8da7adf9105ddd8aa790b2adbb3cfcdae2b1a6b6228932a0620c9d468a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960240
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960240
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM2007220
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T09:57:33Z
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 0x1a75bd8da7adf9105ddd8aa790b2adbb3cfcdae2b1a6b6228932a0620c9d468a. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/FR7JM2007220.
  date published: 2026-07-30T09:57:33Z
audio: Partita for Solo Violin No. 5 in G Minor: VI. Menuett
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 82.429
  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: 0.462
  additional property: Energy
    type: PropertyValue
    value: 0.045
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.007
  additional property: Liveness
    type: PropertyValue
    value: 0.117
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.585
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.22
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Partita for Solo Violin No. 5 in G Minor: VII. Boure
type: MusicRecording
duration: PT0M53S
duration ms: 53826
explicit: false
by artist: Johann Joseph Vilsmayr
by artist: Isabelle Faust
in album: Solo: Matteis - Pisendel - Biber - Guillemain - Vilsmayr
  type: MusicAlbum
  date published: 2023-10-20
isrc code: FR7JM2007230
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T23:01:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x868136a77f494f1b9b49a0fdd1bad44c0f888a1af61db76fee0175485a206776
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/FR7JM2007230
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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Rosary Sonatas: XVI. Passacaglia for Solo Violin in G Minor "The Guardian Angel"
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subject of: OpenTimestamps Proof of Existence
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Locatelli: il virtuoso, il poeta (Violin Concertos & Concerti Grossi)
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    date published: 2026-07-02T03:55:08Z
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track: Concerto Grosso in C Minor, Op. 1 No. 11: III. Sarabanda. Largo
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  audio: Concerto Grosso in C Minor, Op. 1 No. 11: III. Sarabanda. Largo
track: Concerto Grosso in C Minor, Op. 1 No. 11: IV. Giga. Allegro
track: Violin Concerto in A Major, Op. 3 No. 11: I. Allegro
track: Violin Concerto in A Major, Op. 3 No. 11: II. Largo
track: Violin Concerto in A Major, Op. 3 No. 11: III. Andante
track: Concerto Grosso in E-Flat Major, Op. 7 No. 6 "Il Pianto d'Arianna": I. Andante - Allegro - Adagio - Andante - Allegro
track: Concerto Grosso in E-Flat Major, Op. 7 No. 6 "Il Pianto d'Arianna": II. Largo
track: Concerto Grosso in E-Flat Major, Op. 7 No. 6 "Il Pianto d'Arianna": III. Largo andante
track: Concerto Grosso in E-Flat Major, Op. 7 No. 6 "Il Pianto d'Arianna": IV. Grave
track: Concerto Grosso in E-Flat Major, Op. 7 No. 6 "Il Pianto d'Arianna": V. Allegro
track: Concerto Grosso in E-Flat Major, Op. 7 No. 6 "Il Pianto d'Arianna": VI. Largo
track: Violin Concerto in C Minor, Op. 3 No. 2: I. Andante
track: Violin Concerto in C Minor, Op. 3 No. 2: II. Largo
track: Violin Concerto in C Minor, Op. 3 No. 2: III. Andante
track: Concerto Grosso in F Minor, Op. 1 No. 8: VI. Pastorale. Largo andante

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Concerto Grosso in C Minor, Op. 1 No. 11: III. Sarabanda. Largo
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Concerto Grosso in C Minor, Op. 1 No. 11: IV. Giga. Allegro
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Violin Concerto in A Major, Op. 3 No. 11: I. Allegro
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Violin Concerto in A Major, Op. 3 No. 11: II. Largo
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Violin Concerto in A Major, Op. 3 No. 11: III. Andante
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Concerto Grosso in E-Flat Major, Op. 7 No. 6 "Il Pianto d'Arianna": I. Andante - Allegro - Adagio - Andante - Allegro
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Concerto Grosso in E-Flat Major, Op. 7 No. 6 "Il Pianto d'Arianna": II. Largo
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Concerto Grosso in E-Flat Major, Op. 7 No. 6 "Il Pianto d'Arianna": III. Largo andante
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Concerto Grosso in E-Flat Major, Op. 7 No. 6 "Il Pianto d'Arianna": IV. Grave
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subject of: OpenTimestamps Proof of Existence
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Concerto Grosso in E-Flat Major, Op. 7 No. 6 "Il Pianto d'Arianna": V. Allegro
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subject of: OpenTimestamps Proof of Existence
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Concerto Grosso in E-Flat Major, Op. 7 No. 6 "Il Pianto d'Arianna": VI. Largo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T14:28:24Z
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Violin Concerto in C Minor, Op. 3 No. 2: I. Andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T21:09:47Z
audio: Violin Concerto in C Minor, Op. 3 No. 2: I. Andante
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Violin Concerto in C Minor, Op. 3 No. 2: II. Largo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T19:35:34Z
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Violin Concerto in C Minor, Op. 3 No. 2: III. Andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T23:23:05Z
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Concerto Grosso in F Minor, Op. 1 No. 8: VI. Pastorale. Largo andante
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subject of: OpenTimestamps Proof of Existence
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T17:29:52Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T18:48:12Z
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  subject of: OpenTimestamps Proof of Existence
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:20:19Z

Kafka-Fragmente, Op. 24, Teil 3: Ziel, Weg, Zögern
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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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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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  subject of: OpenTimestamps Proof of Existence
  audio: Matthäus-Passion, BWV 244, Zweiter Teil: No. 39, Aria "Erbarme dich"
track: Magnificat in D Major, BWV 243: III. Quia respexit humilitatem
track: Magnificat in D Major, BWV 243: IV. Omnes generationes
track: Brandenburg Concerto No. 3 in G Major, BWV 1048: I. [Ohne Satzbezeichnung]

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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:20:19Z

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Magnificat in D Major, BWV 243: III. Quia respexit humilitatem
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by artist: Philippe Herreweghe
by artist: La Chapelle Royale
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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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Magnificat in D Major, BWV 243: IV. Omnes generationes
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by artist: Collegium Vocale Gent
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Magnificat in D Major, BWV 243: IV. Omnes generationes
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Brandenburg Concerto No. 3 in G Major, BWV 1048: I. [Ohne Satzbezeichnung]
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by artist: Isabelle Faust
by artist: Antoine Tamestit
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Brandenburg Concerto No. 3 in G Major, BWV 1048: I. [Ohne Satzbezeichnung]
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Stravinsky: The Soldier's Tale (English version), Élégie. Duo concertant
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T15:27:29Z
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Stravinsky: Histoire du soldat (version française), Élégie, Duo concertant
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date published: 2021-08-27
track: Histoire du soldat, Partie I Scène I: Marche du soldat. Airs de marche
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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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Stravinsky: Die Geschichte vom Soldaten (Deutsche Fassung). Élégie. Duo concertant
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T17:29:52Z
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Mozart: Sonatas for Fortepiano & Violin, Vol. 3
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track: Violin Sonata in G Major, K. 379: I. Adagio. Allegro
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  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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    value: 2026-07-30T12:39:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x723e543bb140b72d9ee4e21df817326e3c5eeaa3bdf5e9f0cf8aabb8e7a13742
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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    value: 960259
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960259
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM1945010
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T12:51:24Z
  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 0x723e543bb140b72d9ee4e21df817326e3c5eeaa3bdf5e9f0cf8aabb8e7a13742. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/FR7JM1945010.
    date published: 2026-07-30T12:51:24Z
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    type: AudioObject
    additional property: Tempo (BPM)
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      value: 108.197
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.335
    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.937
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.083
    additional property: Liveness
      type: PropertyValue
      value: 0.073
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.132
    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.439
    additional property: Key Name
      type: PropertyValue
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    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Violin Sonata in G Major, K. 379: II. Tema [con Variazioni]. Andantino cantabile. Allegretto
  type: MusicRecording
  duration: PT9M15S
  duration ms: 555080
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Isabelle Faust
  by artist: Alexander Melnikov
  in album: Mozart: Sonatas for Fortepiano & Violin, Vol. 3
    type: MusicAlbum
    date published: 2021-05-21
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: FR7JM1945020
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T20:10:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x75011afe9bec278d7ad2bc5e58a5d97c68815b41122743f3055cdce85b449b9b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960459
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960459
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM1945020
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T20:22:46Z
  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 0x75011afe9bec278d7ad2bc5e58a5d97c68815b41122743f3055cdce85b449b9b. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/FR7JM1945020.
    date published: 2026-07-31T20:22:46Z
  audio: Violin Sonata in G Major, K. 379: II. Tema [con Variazioni]. Andantino cantabile. Allegretto
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 129.925
    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: 0.408
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
      value: 0.194
    additional property: Liveness
      type: PropertyValue
      value: 0.263
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.178
    additional property: Loudness (dB)
      type: PropertyValue
      value: -27.609
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Violin Sonata in F Major, K. 377: I. Allegro
  type: MusicRecording
  duration: PT6M1S
  duration ms: 361186
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Isabelle Faust
  by artist: Alexander Melnikov
  in album: Mozart: Sonatas for Fortepiano & Violin, Vol. 3
    type: MusicAlbum
    date published: 2021-05-21
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: FR7JM1945030
  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: Violin Sonata in F Major, K. 377: I. Allegro
track: Violin Sonata in F Major, K. 377: II. Tema [con Variazioni]. Andante

CopyrightID
type: PropertyValue

CopyrightStatus
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value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-31T17:44:25+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xaf2ce8310402c8fa6b4e73a9628509e4380c700bbb32b40b934a068994e875fd

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 960448

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960448

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR7JM1945030

OTSTimestamp
type: PropertyValue
value: 2026-07-31T18:48:12Z

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 0xaf2ce8310402c8fa6b4e73a9628509e4380c700bbb32b40b934a068994e875fd. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FR7JM1945030.
date published: 2026-07-31T18:48:12Z

Violin Sonata in F Major, K. 377: I. Allegro
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 107.661
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.456
additional property: Energy
  type: PropertyValue
  value: 0.275
additional property: Speechiness
  type: PropertyValue
  value: 0.038
additional property: Acousticness
  type: PropertyValue
  value: 0.912
additional property: Instrumentalness
  type: PropertyValue
  value: 0.387
additional property: Liveness
  type: PropertyValue
  value: 0.264
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.604
additional property: Loudness (dB)
  type: PropertyValue
  value: -23.324
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

Violin Sonata in F Major, K. 377: II. Tema [con Variazioni]. Andante
type: MusicRecording
duration: PT8M14S
duration ms: 494773
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Isabelle Faust
by artist: Alexander Melnikov
in album: Mozart: Sonatas for Fortepiano & Violin, Vol. 3
  type: MusicAlbum
  date published: 2021-05-21
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: FR7JM1945040
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:21:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5d9c3861a58dcae6e968dac4c7a5830a2087f0110b1f3ac3fc22215528ae6b2e
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/FR7JM1945040
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 0x5d9c3861a58dcae6e968dac4c7a5830a2087f0110b1f3ac3fc22215528ae6b2e. 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/FR7JM1945040.
  date published: 2026-07-08T03:20:19Z
audio: Violin Sonata in F Major, K. 377: II. Tema [con Variazioni]. Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.707
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.363
  additional property: Energy
    type: PropertyValue
    value: 0.085
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.942
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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