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genre: chamber music
genre: classical
genre: classical piano
description: Kristóf Baráti (born 17 May 1979) is a Hungarian classical violinist. Early life Baráti was born into a musical family in Budapest in 1979. His mother played the violin and his father was a cellis
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album: Franck: Chamber Music Masterpieces
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album: French Violin Sonatas
  type: MusicAlbum
  date published: 2021-12-31
album: Mozart: Complete Works for Violin & Orchestra
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    date published: 2026-06-13T12:53:06Z
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    date published: 2026-06-13T13:32:09Z
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track: Violin Sonata No. 5 in F, Op. 24 'Spring': II. Adagio molto Espressivo
track: Violin Sonata No. 5 in F, Op. 24 'Spring': III. Scherzo: Allegro Molto
track: Violin Sonata No. 5 in F, Op. 24 'Spring': IV. Rondo: Allegro ma non Troppo
track: Sonata No. 2 in A Major, Op. 100: III. Allegretto grazioso, quasi Andante
track: Sonata No. 2 in A Major, Op. 100: II. Andante tranquillo - Vivace - Andante - Vivace di più - Andante - Vivace
track: Violin Sonata No. 10 in G, Op. 96: II. Adagio Espressivo
track: Violin Sonata No. 10 in G, Op. 96: III. Scherzo: Allegro
track: Violin Sonata, L.140: I. Allegro vivo
track: Violin Sonata, L.140: II. Intermède, fantasque et léger
track: Violin Sonata, L.140: III. Finale, très animé
track: Violin Sonata No. 2 in G Major, M.77: I. Allegretto
track: Violin Sonata No. 2 in G Major, M.77: II. Blues. Moderato
track: Violin Sonata No. 2 in G Major, M.77: III. Perpetuum mobile, allegro
track: Violin Sonata in A Major, FWV 8: I. Allegretto ben moderato
track: Violin Sonata in A Major, FWV 8: IV. Allegretto poco mosso
track: Sonata No. 3 in D Minor, Op. 108: II. Adagio
track: Sonata No. 3 in D Minor, Op. 108: III. Un poco presto e con Sentimento
track: Sonata No. 3 in D Minor, Op. 108: IV. Presto Agitato

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Violin Sonata No. 5 in F, Op. 24 'Spring': II. Adagio molto Espressivo
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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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Violin Sonata No. 5 in F, Op. 24 'Spring': IV. Rondo: Allegro ma non Troppo
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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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Sonata No. 2 in A Major, Op. 100: III. Allegretto grazioso, quasi Andante
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duration: PT5M6S
duration ms: 306626
explicit: false
by artist: Johannes Brahms
by artist: Kristóf Baráti
by artist: Klára Würtz
in album: Famous Violin Sonatas
  type: MusicAlbum
  date published: 2020-09-04
popularity: 7
genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
genre: orchestral
isrc code: NLY331405619
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
  value: 2026-07-30T14:44:50Z
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 0xe51c89b6ed066a7daba2b0bb96612240472932401555023d94debf0ea8208bf1. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331405619 — a six-check JSON result.
  date published: 2026-07-30T14:44:50Z
audio: Sonata No. 2 in A Major, Op. 100: III. Allegretto grazioso, quasi Andante
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Sonata No. 2 in A Major, Op. 100: II. Andante tranquillo - Vivace - Andante - Vivace di più - Andante - Vivace
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duration: PT6M21S
duration ms: 381280
explicit: false
by artist: Johannes Brahms
by artist: Kristóf Baráti
by artist: Klára Würtz
in album: Famous Violin Sonatas
  type: MusicAlbum
  date published: 2020-09-04
popularity: 6
genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
genre: orchestral
isrc code: NLY331405618
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlock
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331405618
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 0xaf72a6a5e835c0974c92ec69ddb1cf1e780f9a7350e84446f9c225762866b374. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331405618 — a six-check JSON result.
  date published: 2026-07-07T16:07:00Z
audio: Sonata No. 2 in A Major, Op. 100: II. Andante tranquillo - Vivace - Andante - Vivace di più - Andante - Vivace
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Violin Sonata No. 10 in G, Op. 96: II. Adagio Espressivo
type: MusicRecording
duration: PT5M16S
duration ms: 316920
explicit: false
by artist: Ludwig van Beethoven
by artist: Kristóf Baráti
by artist: Klára Würtz
in album: Famous Violin Sonatas
  type: MusicAlbum
  date published: 2020-09-04
popularity: 6
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: NLY331211962
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331211962
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d7f0a178068ab567c723018c16ae10a5c8ef1c4143f71daadb3e3e3a62fd13. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331211962 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Violin Sonata No. 10 in G, Op. 96: II. Adagio Espressivo
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  additional property: Mode Name
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Violin Sonata No. 10 in G, Op. 96: III. Scherzo: Allegro
type: MusicRecording
duration: PT1M48S
duration ms: 108640
explicit: false
by artist: Ludwig van Beethoven
by artist: Kristóf Baráti
by artist: Klára Würtz
in album: Famous Violin Sonatas
  type: MusicAlbum
  date published: 2020-09-04
popularity: 6
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: NLY331211963
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331211963
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:36:16Z
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 0x90ffd603ec6c1952c0dfb1bdbb6b53c64e7f372cac016c957ec5a75afbe28c42. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331211963 — a six-check JSON result.
  date published: 2026-07-30T14:36:16Z
audio: Violin Sonata No. 10 in G, Op. 96: III. Scherzo: Allegro
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  additional property: Danceability
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  additional property: Energy
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Violin Sonata, L.140: I. Allegro vivo
type: MusicRecording
duration: PT4M33S
duration ms: 273306
explicit: false
by artist: Claude Debussy
by artist: Kristóf Baráti
by artist: Klára Würtz
in album: Famous Violin Sonatas
  type: MusicAlbum
  date published: 2020-09-04
popularity: 6
genre: classical
genre: impressionism
genre: post-romantic-era
isrc code: NLY331904103
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T01:47:47+00:00
additional property: CopyrightChainExplorerURL
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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/NLY331904103
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 0x1a06a05c68dfeb06a7de064b526e1a4a5f3d4834c12770cb00278a255bbd3ec0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331904103 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Violin Sonata, L.140: I. Allegro vivo
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  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
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
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Violin Sonata, L.140: II. Intermède, fantasque et léger
type: MusicRecording
duration: PT4M4S
duration ms: 244933
explicit: false
by artist: Claude Debussy
by artist: Kristóf Baráti
by artist: Klára Würtz
in album: Famous Violin Sonatas
  type: MusicAlbum
  date published: 2020-09-04
popularity: 6
genre: classical
genre: impressionism
genre: post-romantic-era
isrc code: NLY331904104
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd2a5ab8cd084442721c5eee5c2b98ef64482f52a552bd24a78df9088c0c39832
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 960164
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960164
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331904104
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T23:23:05Z
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 0xd2a5ab8cd084442721c5eee5c2b98ef64482f52a552bd24a78df9088c0c39832. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331904104 — a six-check JSON result.
  date published: 2026-07-29T23:23:05Z
audio: Violin Sonata, L.140: II. Intermède, fantasque et léger
  type: AudioObject
  additional property: Tempo (BPM)
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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
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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Violin Sonata, L.140: III. Finale, très animé
type: MusicRecording
duration: PT4M15S
duration ms: 255493
explicit: false
by artist: Claude Debussy
by artist: Kristóf Baráti
by artist: Klára Würtz
in album: Famous Violin Sonatas
  type: MusicAlbum
  date published: 2020-09-04
popularity: 6
genre: classical
genre: impressionism
genre: post-romantic-era
isrc code: NLY331904105
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331904105
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T05:15:54Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T05:15:54Z
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Violin Sonata No. 2 in G Major, M.77: I. Allegretto
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by artist: Kristóf Baráti
by artist: Klára Würtz
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genre: classical
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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: 2026-07-30T05:15:54Z
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Violin Sonata No. 2 in G Major, M.77: II. Blues. Moderato
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by artist: Kristóf Baráti
by artist: Klára Würtz
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  date published: 2020-09-04
popularity: 6
genre: classical
genre: impressionism
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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: 2026-07-30T05:15:54Z
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Violin Sonata No. 2 in G Major, M.77: III. Perpetuum mobile, allegro
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by artist: Kristóf Baráti
by artist: Klára Würtz
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popularity: 6
genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
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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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Violin Sonata in A Major, FWV 8: I. Allegretto ben moderato
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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: Violin Sonata in A Major, FWV 8: I. Allegretto ben moderato
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Violin Sonata in A Major, FWV 8: IV. Allegretto poco mosso
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by artist: Kristóf Baráti
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popularity: 6
genre: chamber-music
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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: 2026-07-30T08:32:18Z
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Sonata No. 3 in D Minor, Op. 108: II. Adagio
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popularity: 6
genre: classical
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genre: classical-piano
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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: 2026-07-30T07:28:30Z
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Sonata No. 3 in D Minor, Op. 108: III. Un poco presto e con Sentimento
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popularity: 6
genre: classical
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genre: classical-piano
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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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audio: Sonata No. 3 in D Minor, Op. 108: III. Un poco presto e con Sentimento
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Sonata No. 3 in D Minor, Op. 108: IV. Presto Agitato
type: MusicRecording
duration: PT5M20S
duration ms: 320600
explicit: false
by artist: Johannes Brahms
by artist: Kristóf Baráti
by artist: Klára Würtz
in album: Famous Violin Sonatas
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  date published: 2020-09-04
popularity: 6
genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
genre: orchestral
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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 0x76e57e1f73e7b706f75a594e250eb332fafc6adc7956e8eb8a98e0ee3d557c38. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331405623 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Sonata No. 3 in D Minor, Op. 108: IV. Presto Agitato
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