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subject of: OpenTimestamps Proof of Existence
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album: Ries, F.: Concerto for 2 Horns, Woo 19 / Violin Concerto No. 1 / Overtures To Die Rauberbraut and The Sorceress
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album: Schubert: Oktett
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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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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-29T23:20:38Z
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  track: Octet in F-Major, D.803: III. Allegro vivace - Trio
  track: Octet in F-Major, D.803: IV. Andante - Var. I-VII
  track: Octet in F-Major, D.803: V. Menuetto. Allegretto - Trio
  track: Octet in F-Major, D.803: VI. Andante molto - Allegro - Andante molto - Allegro molto
  track: 5 Minuets, D.89: No. 3 (transcribed for octet)
  track: 5 Minuets, D.89: No. 5 (transcribed for octet)
album: Hindemith: Sonatas for…
album: Mozart: Oboe Concerto & Other Works with Oboe
album: Tafelmusik (Complete) Part: 4
album: Jan Ladislav Dussek: Duos for Harp and Pianoforte
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album: Bach Cantatas (Complete) Part: 33
album: Bach Edition Vol. 15, Cantatas Vol. VIII Part: 4
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album: Horn and Piano: A Cor Basse Recital
album: Naderman & Duvernoy: Deux à Deux
album: Brahms: Horn Trio; Violin Sonata No. 1; Fantasies Op. 116
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album: A Bassoon in Stockholm...
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album: Dauprat, Gallay, Duvernoy & Rossini: Le cor romantique français
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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: 2026-07-30T06:39:12Z
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T06:39:12Z
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Octet in F-Major, D.803: V. Menuetto. Allegretto - Trio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T17:23:26Z
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Octet in F-Major, D.803: VI. Andante molto - Allegro - Andante molto - Allegro molto
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duration: PT9M5S
duration ms: 545120
explicit: false
by artist: Franz Schubert
by artist: Isabelle Faust
by artist: Anne-Katharina Schreiber
by artist: Danusha Waskiewicz
by artist: Kristin von der Goltz
by artist: James Munro
by artist: Lorenzo Coppola
by artist: Teunis van der Zwart
by artist: Javier Zafra
in album: Schubert: Oktett
  type: MusicAlbum
  date published: 2018-05-18
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: FR7JM1747060
additional property: CopyrightID
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T18:23:33Z
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5 Minuets, D.89: No. 3 (transcribed for octet)
type: MusicRecording
duration: PT5M21S
duration ms: 321760
explicit: false
by artist: Franz Schubert
by artist: Isabelle Faust
by artist: Anne-Katharina Schreiber
by artist: Danusha Waskiewicz
by artist: Kristin von der Goltz
by artist: James Munro
by artist: Lorenzo Coppola
by artist: Teunis van der Zwart
by artist: Javier Zafra
in album: Schubert: Oktett
  type: MusicAlbum
  date published: 2018-05-18
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: FR7JM1747070
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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: 5 Minuets, D.89: No. 3 (transcribed for octet)
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5 Minuets, D.89: No. 5 (transcribed for octet)
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duration: PT3M50S
duration ms: 230106
explicit: false
by artist: Franz Schubert
by artist: Isabelle Faust
by artist: Anne-Katharina Schreiber
by artist: Danusha Waskiewicz
by artist: Kristin von der Goltz
by artist: James Munro
by artist: Lorenzo Coppola
by artist: Teunis van der Zwart
by artist: Javier Zafra
in album: Schubert: Oktett
  type: MusicAlbum
  date published: 2018-05-18
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: FR7JM1747080
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
  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: 2026-07-31T23:51:35Z
audio: 5 Minuets, D.89: No. 5 (transcribed for octet)
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Hindemith: Sonatas for…
type: MusicAlbum
date published: 2015-01-13
track: Sonata for Trumpet and Piano: I. Mit Kraft
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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
    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-07-31T00:26:26Z
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track: Sonata for Trumpet and Piano: III. Trauermusik, Sehr langsam - Ruhig bewegt - Wie am Anfang - Alle Menschen müssen sterben, Sehr ruhig
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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
    type: DigitalDocument
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    date published: 2026-07-31T21:25:57Z
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Mozart: Oboe Concerto & Other Works with Oboe
type: MusicAlbum
date published: 2016-09-30

Tafelmusik (Complete) Part: 4
type: MusicAlbum
date published: 2006-12-20
track: Musique De Table, Production III, I. Ouverture-Suite In B Flat Major For 2 Oboes, Bassoon, Strings and B.C.: Ouverture (Lentement-Presto-Lentement-Presto)
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  by artist: Musica Amphion
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  by artist: Arts Music Recording, Rotterdam
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  by artist: Peter Frankenberg
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  by artist: Alfredo Bernardini
  by artist: Sayuri Yamagata
  by artist: Pieter-Jan Belder
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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: 2026-07-31T19:53:13Z
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track: Horn Trio in E-Flat Major, Op. 40: IV. Finale (Allegro con brio)
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Horn Trio in E-Flat Major, Op. 40: IV. Finale (Allegro con brio)
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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 No. 1 in G Major, Op. 78: II. Adagio - Più andante - Adagio
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Violin Sonata No. 1 in G Major, Op. 78: III. Allegro molto moderato - Più moderato
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Punto: Horn Concerto No. 1 in E Major : II. Adagio
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date published: 2021-11-26

Bach Cantatas (Complete) Part: 36
type: MusicAlbum
date published: 2006-12-20
track: I. Wachet Auf, Ruft Uns Die Stimme BWV 140, (1) Coro: Wachet Auf, Ruft Uns Die Stimme
  type: MusicRecording
  duration: PT7M14S
  duration ms: 434500
  explicit: false
  by artist: Holland Boys Choir, Netherlands Bach Collegium
  by artist: Ruth Holton
  by artist: Johann Sebastian Bach
  by artist: Sytse Buwalda
  by artist: Nico Van Der Meel
  by artist: Pieter Jan Leusink
  in album: Bach Cantatas (Complete) Part: 36
    type: MusicAlbum
    date published: 2006-12-20
  isrc code: NLN580537155
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T17:56:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf669caf19feae02cca776bbe8c1b77aeebebbfa1b98f8589fe70c12b44c5a95d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956302
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLN580537155
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  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 0xf669caf19feae02cca776bbe8c1b77aeebebbfa1b98f8589fe70c12b44c5a95d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLN580537155 — a six-check JSON result.
    date published: 2026-07-02T03:30:09Z
  audio: I. Wachet Auf, Ruft Uns Die Stimme BWV 140, (1) Coro: Wachet Auf, Ruft Uns Die Stimme
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 108.696
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.375
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
      value: 0.98
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.818
    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.38
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.643
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: I. Wachet Auf, Ruft Uns Die Stimme BWV 140, (2) Recitativo (Tenore): Er Kommt, Der Bräutgam Kommt
  type: MusicRecording
  duration: PT1M2S
  duration ms: 62250
  explicit: false
  by artist: Holland Boys Choir, Netherlands Bach Collegium
  by artist: Nico Van Der Meel
  by artist: Johann Sebastian Bach
  by artist: Ruth Holton
  by artist: Sytse Buwalda
  by artist: Pieter Jan Leusink
  in album: Bach Cantatas (Complete) Part: 36
    type: MusicAlbum
    date published: 2006-12-20
  isrc code: NLN580537156
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T10:12:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5bcf0da8c02636af839035ef1bc513864d49c4c064ce481b66bb7196f247cfde
  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/NLN580537156
  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 0x5bcf0da8c02636af839035ef1bc513864d49c4c064ce481b66bb7196f247cfde. 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/NLN580537156 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
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    type: AudioObject
    additional property: Tempo (BPM)
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      value: 105.412
    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      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
      type: PropertyValue
      value: 0
    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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      value: -26.334
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: I. Wachet Auf, Ruft Uns Die Stimme BWV 140, (3) Aria (Duetto: Soprano, Basso): Wann Kömmst Du, Mein Heil?
  type: MusicRecording
  duration: PT6M3S
  duration ms: 363500
  explicit: false
  by artist: Holland Boys Choir, Netherlands Bach Collegium
  by artist: Ruth Holton
  by artist: Sytse Buwalda
  by artist: Johann Sebastian Bach
  by artist: Nico Van Der Meel
  by artist: Pieter Jan Leusink
  in album: Bach Cantatas (Complete) Part: 36
    type: MusicAlbum
    date published: 2006-12-20
  isrc code: NLN580537157
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  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: I. Wachet Auf, Ruft Uns Die Stimme BWV 140, (3) Aria (Duetto: Soprano, Basso): Wann Kömmst Du, Mein Heil?
track: I. Wachet Auf, Ruft Uns Die Stimme BWV 140, (4) Choral (Tenore): Zion Hört Die Wächter Singen
track: I. Wachet Auf, Ruft Uns Die Stimme BWV 140, (5) Recitativo (Basso): So Geh Herein Zu Mir
track: I. Wachet Auf, Ruft Uns Die Stimme BWV 140, (6) Aria (Duetto: Soprano, Basso): Mein Freund Ist Mein!
track: I. Wachet Auf, Ruft Uns Die Stimme BWV 140, (7) Choral (Coro): Gloria Sei Dir Gesungen
track: II. Siehe, Ich Will Viel Fischer Aussenden BWV 88, Prima Parte, (2) Recitativo (Tenore): Wie Leichtlich Könnte Doch

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T13:01:47+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xb67787fac1ecc0c2c1ebc0a0b2aee8ceb5cc014ed37a4092295166bc1068f45a

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957118

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

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLN580537157

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

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67787fac1ecc0c2c1ebc0a0b2aee8ceb5cc014ed37a4092295166bc1068f45a. 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/NLN580537157 — a six-check JSON result.
date published: 2026-07-08T03:20:19Z

I. Wachet Auf, Ruft Uns Die Stimme BWV 140, (3) Aria (Duetto: Soprano, Basso): Wann Kömmst Du, Mein Heil?
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 122.032
additional property: Musical Key
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  value: 11
additional property: Mode (Major/Minor)
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  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.263
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
  type: PropertyValue
  value: 0
additional property: Liveness
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additional property: Valence (Positivity)
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  value: 0.187
additional property: Loudness (dB)
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additional property: Key Name
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  value: B
additional property: Mode Name
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I. Wachet Auf, Ruft Uns Die Stimme BWV 140, (4) Choral (Tenore): Zion Hört Die Wächter Singen
type: MusicRecording
duration: PT4M17S
duration ms: 257500
explicit: false
by artist: Holland Boys Choir, Netherlands Bach Collegium
by artist: Ruth Holton
by artist: Sytse Buwalda
by artist: Nico Van Der Meel
by artist: Johann Sebastian Bach
by artist: Pieter Jan Leusink
in album: Bach Cantatas (Complete) Part: 36
  type: MusicAlbum
  date published: 2006-12-20
isrc code: NLN580537158
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T02:55:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe2d7af42d26c0a12b6c7fa3934e55fa681aab95008737b8db3c48293158ec250
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLN580537158
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0xe2d7af42d26c0a12b6c7fa3934e55fa681aab95008737b8db3c48293158ec250. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLN580537158 — a six-check JSON result.
  date published: 2026-07-02T03:30:09Z
audio: I. Wachet Auf, Ruft Uns Die Stimme BWV 140, (4) Choral (Tenore): Zion Hört Die Wächter Singen
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 162.685
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.199
  additional property: Energy
    type: PropertyValue
    value: 0.03
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.9
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.256
  additional property: Liveness
    type: PropertyValue
    value: 0.101
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.283
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.701
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

I. Wachet Auf, Ruft Uns Die Stimme BWV 140, (5) Recitativo (Basso): So Geh Herein Zu Mir
type: MusicRecording
duration: PT1M23S
duration ms: 83500
explicit: false
by artist: Holland Boys Choir, Netherlands Bach Collegium
by artist: Ruth Holton
by artist: Sytse Buwalda
by artist: Johann Sebastian Bach
by artist: Nico Van Der Meel
by artist: Pieter Jan Leusink
in album: Bach Cantatas (Complete) Part: 36
  type: MusicAlbum
  date published: 2006-12-20
isrc code: NLN580537159
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T09:32:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x632930308b9b1cd3464ad860c81fd7e5fc825c99c746236d36c2d7bf12a57868
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLN580537159
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x632930308b9b1cd3464ad860c81fd7e5fc825c99c746236d36c2d7bf12a57868. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLN580537159 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
audio: I. Wachet Auf, Ruft Uns Die Stimme BWV 140, (5) Recitativo (Basso): So Geh Herein Zu Mir
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.631
  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.321
  additional property: Energy
    type: PropertyValue
    value: 0.017
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.087
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.631
  additional property: Key Name
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    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

I. Wachet Auf, Ruft Uns Die Stimme BWV 140, (6) Aria (Duetto: Soprano, Basso): Mein Freund Ist Mein!
type: MusicRecording
duration: PT5M54S
duration ms: 354250
explicit: false
by artist: Holland Boys Choir, Netherlands Bach Collegium
by artist: Johann Sebastian Bach
by artist: Sytse Buwalda
by artist: Ruth Holton
by artist: Nico Van Der Meel
by artist: Pieter Jan Leusink
in album: Bach Cantatas (Complete) Part: 36
  type: MusicAlbum
  date published: 2006-12-20
isrc code: NLN580537160
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:48:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8a968f1a39d1385b0d26048804b4ff70a15fad3ce94f61d6972954673bc8ed86
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/NLN580537160
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 0x8a968f1a39d1385b0d26048804b4ff70a15fad3ce94f61d6972954673bc8ed86. 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/NLN580537160 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: I. Wachet Auf, Ruft Uns Die Stimme BWV 140, (6) Aria (Duetto: Soprano, Basso): Mein Freund Ist Mein!
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    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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I. Wachet Auf, Ruft Uns Die Stimme BWV 140, (7) Choral (Coro): Gloria Sei Dir Gesungen
type: MusicRecording
duration: PT1M38S
duration ms: 98250
explicit: false
by artist: Holland Boys Choir, Netherlands Bach Collegium
by artist: Nico Van Der Meel
by artist: Ruth Holton
by artist: Sytse Buwalda
by artist: Johann Sebastian Bach
by artist: Pieter Jan Leusink
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II. Siehe, Ich Will Viel Fischer Aussenden BWV 88, Prima Parte, (2) Recitativo (Tenore): Wie Leichtlich Könnte Doch
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Bach Cantatas (Complete) Part: 42
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Bach Cantatas (Complete) Part: 38
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Bach Edition Vol. 15, Cantatas Vol. VIII Part: 3
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A Bassoon in Stockholm...
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Bach Cantatas (Complete) Part: 44
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Bach Edition Vol. 15, Cantatas Vol. VIII Part: 5
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Dauprat, Gallay, Duvernoy & Rossini: Le cor romantique français
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Bach Edition Vol. 18, Cantatas Vol. IX Part: 2
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Mozart: Music for Horn
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    date published: 2026-07-02T03:55:08Z
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track: Horn Trio in E-Flat Major, Op. 40: IV. Finale (Allegro con brio)
track: Violin Sonata No. 1 in G Major, Op. 78: I. Vivace ma non troppo
track: Violin Sonata No. 1 in G Major, Op. 78: II. Adagio - Più andante - Adagio
track: Violin Sonata No. 1 in G Major, Op. 78: III. Allegro molto moderato - Più moderato
track: 7 Fantasien, Op. 116: I. Capriccio in D Minor (Presto energico)
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track: 7 Fantasien, Op. 116: VI. Intermezzo in E Major (Andantino teneramente)
track: 7 Fantasien, Op. 116: VII. Capriccio in D Minor (Allegro agitato)

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date published: 2026-07-02T03:55:08Z

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  date published: 2026-07-02T03:55:08Z
audio: Horn Trio in E-Flat Major, Op. 40: IV. Finale (Allegro con brio)
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Violin Sonata No. 1 in G Major, Op. 78: I. Vivace ma non troppo
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by artist: Isabelle Faust
by artist: Alexander Melnikov
in album: Brahms: Horn Trio, Op.40
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  date published: 2008-09-23
genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
genre: orchestral
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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: 2026-07-07T15:12:44Z
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Violin Sonata No. 1 in G Major, Op. 78: II. Adagio - Più andante - Adagio
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duration: PT7M36S
duration ms: 456440
explicit: false
by artist: Johannes Brahms
by artist: Isabelle Faust
by artist: Alexander Melnikov
in album: Brahms: Horn Trio, Op.40
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  date published: 2008-09-23
genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
genre: orchestral
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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: 2026-07-30T14:36:16Z
audio: Violin Sonata No. 1 in G Major, Op. 78: II. Adagio - Più andante - Adagio
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Violin Sonata No. 1 in G Major, Op. 78: III. Allegro molto moderato - Più moderato
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duration: PT9M10S
duration ms: 550106
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by artist: Johannes Brahms
by artist: Isabelle Faust
by artist: Alexander Melnikov
in album: Brahms: Horn Trio, Op.40
  type: MusicAlbum
  date published: 2008-09-23
genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
genre: orchestral
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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
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  date published: 2026-07-31T00:26:26Z
audio: Violin Sonata No. 1 in G Major, Op. 78: III. Allegro molto moderato - Più moderato
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7 Fantasien, Op. 116: I. Capriccio in D Minor (Presto energico)
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duration: PT2M22S
duration ms: 142093
explicit: false
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by artist: Alexander Melnikov
in album: Brahms: Horn Trio, Op.40
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  date published: 2008-09-23
genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
genre: orchestral
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  value: 957118
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additional property: OTSVerificationAPI
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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
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  date published: 2026-07-08T03:20:19Z
audio: 7 Fantasien, Op. 116: I. Capriccio in D Minor (Presto energico)
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7 Fantasien, Op. 116: II. Intermezzo in A Minor (Andante)
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duration: PT4M20S
duration ms: 260866
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by artist: Johannes Brahms
by artist: Alexander Melnikov
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genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
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additional property: OTSVerificationAPI
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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 0x02db9d0d7a8da84862a95dbe412067b8525a39b5187188e0c5cca2b877e742e2. 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/FRZ140716090 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
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7 Fantasien, Op. 116: III. Capriccio in G Minor (Allegro passionato)
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by artist: Alexander Melnikov
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genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
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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 0x3efa1789a290567b8b8275e5c90e33789abc2aa09a5e152e8185ddf41548a593. 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/FRZ140716100 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: 7 Fantasien, Op. 116: III. Capriccio in G Minor (Allegro passionato)
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7 Fantasien, Op. 116: IV. Intermezzo in E Major (Adagio)
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: 7 Fantasien, Op. 116: IV. Intermezzo in E Major (Adagio)
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7 Fantasien, Op. 116: V. Intermezzo in E Minor (Andante con grazia ed intimissimo sentimento)
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by artist: Alexander Melnikov
in album: Brahms: Horn Trio, Op.40
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  date published: 2008-09-23
genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
genre: orchestral
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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: 2026-07-31T08:26:41Z
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7 Fantasien, Op. 116: VI. Intermezzo in E Major (Andantino teneramente)
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duration: PT3M33S
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by artist: Alexander Melnikov
in album: Brahms: Horn Trio, Op.40
  type: MusicAlbum
  date published: 2008-09-23
genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
genre: orchestral
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T08:26:41Z
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7 Fantasien, Op. 116: VII. Capriccio in D Minor (Allegro agitato)
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duration: PT2M16S
duration ms: 136240
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by artist: Johannes Brahms
by artist: Alexander Melnikov
in album: Brahms: Horn Trio, Op.40
  type: MusicAlbum
  date published: 2008-09-23
genre: classical
genre: german-romanticism
genre: classical-piano
genre: late-romantic-era
genre: chamber-music
genre: orchestral
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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 0x37b0dccfb554dd83be8eb02e9272b284663eca949422c0508408f67afbbccc85. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140716140 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: 7 Fantasien, Op. 116: VII. Capriccio in D Minor (Allegro agitato)
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