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genre: classical
popularity: 35
followers: 677
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 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. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin 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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album: Bach Concertos
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  date published: 2013-01-01
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    by artist: Cindy Albracht
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    by artist: Tijmen Huisingh
    by artist: Monika Urbonaite
    by artist: Nimrod Guez
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    by artist: Jan Jansen
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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: 2026-06-13T13:32:09Z
    audio: Violin Concerto No. 2 in E Major, BWV 1042: I. Allegro
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-06-13T13:32:09Z
    audio: Violin Concerto No. 2 in E Major, BWV 1042: II. Adagio
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  track: Violin Concerto No. 1 in A Minor, BWV 1041: II. Andante
  track: Violin Concerto No. 1 in A Minor, BWV 1041: III. Allegro assai
  track: Concerto for Violin and Oboe in C Minor, BWV 1060R: I. Allegro
  track: Concerto for Violin and Oboe in C Minor, BWV 1060R: III. Allegro
  track: Violin Sonata No. 3 in E Major, BWV 1016: I. Adagio
  track: Violin Sonata No. 3 in E Major, BWV 1016: II. Allegro
  track: Violin Sonata No. 3 in E Major, BWV 1016: III. Adagio ma non tanto
  track: Violin Sonata No. 3 in E Major, BWV 1016: IV. Allegro
  track: Violin Sonata No. 4 in C Minor, BWV 1017: I. Largo
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album: Schubert: Trouts
album: Bassoon Kaleidoscope
album: Beautiful Bassoon
album: Back to StockHome
album: Basso Bailando
album: Baroque Gold - 100 Great Tracks
album: Reports from the Low Country
album: Voices of Angels
album: If the Owl Calls Again
album: Bottesini: Capriccio di Bravura
album: Klassik Aktuell
album: Doppio espressivo
album: Kibbles & Kibitz
album: Bach 101
album: Easy Going Bach
album: Bach Adagio
album: 'Johann': A Sketchbook of Bach
album: North Sea - Nature Untamed (Feature Film & TV Series Soundtrack)
album: A Winter Postcard: Bach
album: Celebration of Bach: Encore!
album: Noche de Clásicos
album: Byström: Ink-Wash on Paper
album: Baroque Gold - 50 Great Tracks
album: Mozart & Beethoven: Septets
album: Música de fondo para terapia
album: Para dormir sin culpa

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by artist: Monika Urbonaite
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by artist: Rick Stotijn
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  date published: 2013-01-01
genre: classical
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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: 2026-06-13T13:32:09Z
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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: 2026-06-13T12:53:06Z
audio: Violin Concerto No. 1 in A Minor, BWV 1041: II. Andante
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by artist: Julia-Maria Kretz
by artist: Tijmen Huisingh
by artist: Monika Urbonaite
by artist: Nimrod Guez
by artist: Pauline Sachse
by artist: Maarten Jansen
by artist: Rick Stotijn
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genre: classical
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subject of: OpenTimestamps Proof of Existence
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Concerto for Violin and Oboe in C Minor, BWV 1060R: I. Allegro
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Concerto for Violin and Oboe in C Minor, BWV 1060R: III. Allegro
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Violin Sonata No. 3 in E Major, BWV 1016: I. Adagio
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subject of: OpenTimestamps Proof of Existence
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Violin Sonata No. 3 in E Major, BWV 1016: II. Allegro
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  date published: 2026-07-02T03:30:09Z
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Violin Sonata No. 3 in E Major, BWV 1016: III. Adagio ma non tanto
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Violin Sonata No. 3 in E Major, BWV 1016: IV. Allegro
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Violin Sonata No. 4 in C Minor, BWV 1017: I. Largo
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071301641
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0x1bef7aaf95430cb654779172440651a140b82bcaaad61adf4912df16e1e54d59. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071301641.
  date published: 2026-06-13T13:32:09Z
audio: Violin Sonata No. 4 in C Minor, BWV 1017: I. Largo
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  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Violin Sonata No. 4 in C Minor, BWV 1017: II. Allegro
type: MusicRecording
duration: PT4M14S
duration ms: 254813
explicit: false
by artist: Johann Sebastian Bach
by artist: Janine Jansen
by artist: Jan Jansen
in album: Bach Concertos
  type: MusicAlbum
  date published: 2013-01-01
genre: classical
genre: classical-piano
isrc code: GBF071301642
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071301642
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 0x7d86e9d27b5b21ec29e1a858478b67e6c7ce04347716eb0ab1a8dd014d80550b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071301642.
  date published: 2026-07-02T03:30:09Z
audio: Violin Sonata No. 4 in C Minor, BWV 1017: II. Allegro
  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
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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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Violin Sonata No. 4 in C Minor, BWV 1017: III. Adagio
type: MusicRecording
duration: PT3M0S
duration ms: 180946
explicit: false
by artist: Johann Sebastian Bach
by artist: Janine Jansen
by artist: Jan Jansen
in album: Bach Concertos
  type: MusicAlbum
  date published: 2013-01-01
genre: classical
genre: classical-piano
isrc code: GBF071301643
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  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/GBF071301643
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 0xbd9f9a5d96ad848ec7537c51f39ba1eb4b933fdab7b6f49acb6b1d47d073a7a8. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071301643.
  date published: 2026-07-02T03:30:09Z
audio: Violin Sonata No. 4 in C Minor, BWV 1017: III. Adagio
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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Violin Sonata No. 4 in C Minor, BWV 1017: IV. Allegro
type: MusicRecording
duration: PT3M12S
duration ms: 192508
explicit: false
by artist: Johann Sebastian Bach
by artist: Janine Jansen
by artist: Jan Jansen
in album: Bach Concertos
  type: MusicAlbum
  date published: 2013-01-01
genre: classical
genre: classical-piano
isrc code: GBF071301644
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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  value: https://explorer.copyrightchains.com/tx/0x9f2147c638f6b8f75fd909dddfc6c38f8017178f8d7d41143ecb06f733726d84
additional property: OTSHash
additional property: OTSBitcoinBlock
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  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/GBF071301644
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 0x9f2147c638f6b8f75fd909dddfc6c38f8017178f8d7d41143ecb06f733726d84. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071301644.
  date published: 2026-07-02T03:55:08Z
audio: Violin Sonata No. 4 in C Minor, BWV 1017: IV. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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Schubert: Trouts
type: MusicAlbum
date published: 2018-10-12

Bassoon Kaleidoscope
type: MusicAlbum
date published: 2012-03-01
track: Harlem Nocturne for Bassoon, Double Bass, Hammond Organ and Drums (arr. Marijn van Prooijen)
  type: MusicRecording
  duration: PT5M4S
  duration ms: 304798
  explicit: false
  by artist: Earle Hagen
  by artist: Marijn van Prooijen
  by artist: Bram van Sambeek
  by artist: Rick Stotijn
  by artist: Sven Figee
  by artist: Marijn Korff de Gidts
  in album: Bassoon Kaleidoscope
    type: MusicAlbum
    date published: 2012-03-01
  isrc code: NLY331208427
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x2632aa7d10a8c5290c3e97ae08149ab9450acdcf1bc2e0da5d76d0220d595fb0
  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/NLY331208427
  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 0x2632aa7d10a8c5290c3e97ae08149ab9450acdcf1bc2e0da5d76d0220d595fb0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLY331208427.
    date published: 2026-07-02T03:55:08Z
  audio: Harlem Nocturne for Bassoon, Double Bass, Hammond Organ and Drums (arr. Marijn van Prooijen)
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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      value: 0.342
    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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Beautiful Bassoon
type: MusicAlbum
date published: 2024-07-03

Back to StockHome
type: MusicAlbum
date published: 2021-07-02

Basso Bailando
type: MusicAlbum
date published: 2014-01-01

Baroque Gold - 100 Great Tracks
type: MusicAlbum
date published: 2017-06-16

Reports from the Low Country
type: MusicAlbum
date published: 2019-09-26

Voices of Angels
type: MusicAlbum
date published: 2020-07-03

If the Owl Calls Again
type: MusicAlbum
date published: 2014-11-28

Bottesini: Capriccio di Bravura
type: MusicAlbum
date published: 2012-01-01

Klassik Aktuell
type: MusicAlbum
date published: 2014-01-01

Doppio espressivo
type: MusicAlbum
date published: 2022-10-07

Kibbles & Kibitz
type: MusicAlbum
date published: 2020-11-06

Bach 101
type: MusicAlbum
date published: 2020-02-11

Easy Going Bach
type: MusicAlbum
date published: 2020-03-05
track: Das Wohltemperierte Klavier: Book 1, BWV 846-869: Prelude in E major BWV 854
  type: MusicRecording
  duration: PT1M38S
  duration ms: 98733
  explicit: false
  by artist: Johann Sebastian Bach
  by artist: Vladimir Ashkenazy
  in album: Easy Going Bach
    type: MusicAlbum
    date published: 2020-03-05
  genre: classical
  genre: classical-piano
  isrc code: GBBBA0540517
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe38ed12b831d71dc730a41c5dce12832d8fd6eae50490877a99b0a8d49f43575
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953520
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0540517
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  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 0xe38ed12b831d71dc730a41c5dce12832d8fd6eae50490877a99b0a8d49f43575. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0540517.
    date published: 2026-06-13T13:32:09Z
  audio: Das Wohltemperierte Klavier: Book 1, BWV 846-869: Prelude in E major BWV 854
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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track: Sonata For Viola Da Gamba And Harpsichord No. 2 In D, BWV 1028: 1. Adagio
  type: MusicRecording
  duration: PT1M46S
  duration ms: 106773
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  by artist: Johann Sebastian Bach
  by artist: Lynn Harrell
  by artist: Igor Kipnis
  in album: Easy Going Bach
    type: MusicAlbum
    date published: 2020-03-05
  genre: classical
  genre: classical-piano
  isrc code: GBF078611131
  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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    value: https://explorer.copyrightchains.com/tx/0x306bd802131461f8b95e3bec6b863a819ac2931d2eeced1908f432e2483e7173
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953520
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078611131
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  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
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    date published: 2026-06-13T13:32:09Z
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  by artist: Monika Urbonaite
  by artist: Nimrod Guez
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  by artist: Rick Stotijn
  by artist: Jan Jansen
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  subject of: OpenTimestamps Proof of Existence
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150f25c9efdf82079728d88f422a2b2b165bb25e237b6aa45ab2c09fd82ba585. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071301660.
date published: 2026-06-13T12:53:06Z

Orchestral Suite No. 3 in D, BWV 1068: 2. Air
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Bach Adagio
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date published: 2015-10-01
track: Das Wohltemperierte Klavier: Book 1, BWV 846-869: Prelude in C Major, BWV 846
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-07-02T03:30:09Z
  audio: Das Wohltemperierte Klavier: Book 1, BWV 846-869: Prelude in C Major, BWV 846
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track: Violin Concerto No. 2 in E Major, BWV 1042: II. Adagio
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  by artist: Janine Jansen
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  by artist: Julia-Maria Kretz
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  by artist: Monika Urbonaite
  by artist: Nimrod Guez
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  by artist: Rick Stotijn
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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: 2026-07-02T03:55:08Z
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  subject of: OpenTimestamps Proof of Existence
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track: Cantata No. 156, BWV 156 "Ich steh mit einem Fuß im Grabe": Sinfonia
track: Prelude and Fugue in E (WTK, Book I, No. 9), BWV 854: Prelude
track: Prelude and Fugue in A flat (WTK, Book I, No. 17), BWV 862: Prelude
track: Concerto for Keyboard, Strings, and Basso continuo No. 5 in F minor, BWV 1056: 2. Largo
track: Concerto for Violin and Oboe in C Minor, BWV 1060R: II. Adagio
track: Cantata No. 196, BWV 196 "Der Herr denket an uns": Sinfonia
track: Sleepers, Awake!
track: Partita No. 1 in B-Flat Major, BWV 825: IV. Sarabande

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

OpenTimestamps Proof of Existence
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date published: 2026-07-02T03:55:08Z

Ich ruf zu dir, Herr Jesu Christ, BWV 639 (Arr. Busoni for Piano)
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Cantata No. 156, BWV 156 "Ich steh mit einem Fuß im Grabe": Sinfonia
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by artist: Accademia Bizantina
by artist: Ottavio Dantone
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genre: classical
genre: classical-piano
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9926100be08105745632ddaa83f4b970d0a8e89ec09fbb3876905106a746c5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA1100570.
  date published: 2026-07-02T03:55:08Z
audio: Cantata No. 156, BWV 156 "Ich steh mit einem Fuß im Grabe": Sinfonia
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Prelude and Fugue in E (WTK, Book I, No. 9), BWV 854: Prelude
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genre: classical
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Prelude and Fugue in E (WTK, Book I, No. 9), BWV 854: Prelude
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Prelude and Fugue in A flat (WTK, Book I, No. 17), BWV 862: Prelude
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duration: PT1M40S
duration ms: 100066
explicit: false
by artist: Johann Sebastian Bach
by artist: Friedrich Gulda
in album: Bach Adagio
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  date published: 2015-10-01
genre: classical
genre: classical-piano
isrc code: DES381509033
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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: 2026-07-02T03:30:09Z
audio: Prelude and Fugue in A flat (WTK, Book I, No. 17), BWV 862: Prelude
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Concerto for Keyboard, Strings, and Basso continuo No. 5 in F minor, BWV 1056: 2. Largo
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duration: PT2M33S
duration ms: 153826
explicit: false
by artist: Johann Sebastian Bach
by artist: Ramin Bahrami
by artist: Gewandhausorchester
by artist: Riccardo Chailly
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genre: classical
genre: classical-piano
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51224b87383b70ac8057c96d85fa1640da54472210f480191b6df0e3d0d6a558. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITUM71003480.
  date published: 2026-07-13T07:53:33Z
audio: Concerto for Keyboard, Strings, and Basso continuo No. 5 in F minor, BWV 1056: 2. Largo
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Concerto for Violin and Oboe in C Minor, BWV 1060R: II. Adagio
type: MusicRecording
duration: PT5M35S
duration ms: 335866
explicit: false
by artist: Johann Sebastian Bach
by artist: Julia Fischer
by artist: Andrey Rubtsov
by artist: Academy of St. Martin in the Fields
in album: Bach Adagio
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genre: classical
genre: classical-piano
isrc code: GBBBA0800622
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additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-02T03:55:08Z
audio: Concerto for Violin and Oboe in C Minor, BWV 1060R: II. Adagio
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Cantata No. 196, BWV 196 "Der Herr denket an uns": Sinfonia
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duration: PT2M33S
duration ms: 153506
explicit: false
by artist: Johann Sebastian Bach
by artist: Accademia Bizantina
by artist: Ottavio Dantone
in album: Bach Adagio
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genre: classical
genre: classical-piano
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d7de865af807051f7d93c00d7aa87ccafb1f647e93d8ae56f9a82e6c2050cf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA1100590.
  date published: 2026-07-02T03:55:08Z
audio: Cantata No. 196, BWV 196 "Der Herr denket an uns": Sinfonia
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Sleepers, Awake!
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duration: PT2M30S
duration ms: 150906
explicit: false
by artist: Johann Sebastian Bach
by artist: The New Symphony Orchestra Of London
by artist: Raymond Agoult
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genre: classical
genre: classical-piano
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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
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Sleepers, Awake!
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Partita No. 1 in B-Flat Major, BWV 825: IV. Sarabande
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duration: PT4M37S
duration ms: 277146
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by artist: Johann Sebastian Bach
by artist: András Schiff
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  date published: 2015-10-01
genre: classical
genre: classical-piano
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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: 2026-07-22T18:03:24Z
audio: Partita No. 1 in B-Flat Major, BWV 825: IV. Sarabande
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'Johann': A Sketchbook of Bach
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date published: 2025-01-14
track: Sonata For Viola Da Gamba And Harpsichord No. 2 In D, BWV 1028: 1. Adagio
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North Sea - Nature Untamed (Feature Film & TV Series Soundtrack)
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A Winter Postcard: Bach
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Celebration of Bach: Encore!
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Noche de Clásicos
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Byström: Ink-Wash on Paper
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Baroque Gold - 50 Great Tracks
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Mozart & Beethoven: Septets
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Música de fondo para terapia
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Para dormir sin culpa
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date published: 2023-07-08