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description: thumb|right|Leo van Doeselaar, 2007 Leo van Doeselaar (born 1954, Goes) is a Dutch classical organist and conductor. Leo van Doeselaar studied the organ (with Albert de Klerk) and piano (with Jan Wi
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  track: Cantata "Geist und Seele wird verwirret", BWV 35, Prima parte: No. 4. Aria, "Gott hat alles wohlgemacht!" (Alto)
  track: Cantata "Geist und Seele wird verwirret", BWV 35, Prima parte: No. 1. Sinfonia (Concerto)
  track: Cantata "Geist und Seele wird verwirret", BWV 35, Prima parte: No. 2. Aria, "Geist und Seele wird verwirret" (Alto)
  track: Cantata "Geist und Seele wird verwirret", BWV 35, Seconda parte: No. 5. Sinfonia
  track: Cantata "Gott soll allein mein Herze haben", BWV 169: No. 7. Chorale, "Du süße Liebe, schenk uns deine Gunst" (Chorus)
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album: Cantata "Geist und Seele wird verwirret", BWV 35: No. 1. Sinfonia (Concerto)
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Cantata "Geist und Seele wird verwirret", BWV 35, Prima parte: No. 4. Aria, "Gott hat alles wohlgemacht!" (Alto)
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Cantata "Geist und Seele wird verwirret", BWV 35, Prima parte: No. 1. Sinfonia (Concerto)
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Cantata "Geist und Seele wird verwirret", BWV 35, Prima parte: No. 2. Aria, "Geist und Seele wird verwirret" (Alto)
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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 0xfdf659d9d5a97404e1c53a0da02591ca5d7c775b2e8d02d16e9542f2d84ad5e8. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEE022109205.
  date published: 2026-07-31T20:22:46Z
audio: Cantata "Geist und Seele wird verwirret", BWV 35, Seconda parte: No. 5. Sinfonia
  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
    value: 5
  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.887
  additional property: Key Name
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    value: C#
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    type: PropertyValue
    value: Minor
isrc code: BEE022109205
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEE022109205
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960459
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T20:22:46+00:00
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

Cantata "Gott soll allein mein Herze haben", BWV 169: No. 7. Chorale, "Du süße Liebe, schenk uns deine Gunst" (Chorus)
type: MusicRecording
duration: PT1M6S
duration ms: 66488
explicit: false
by artist: Johann Sebastian Bach
by artist: Martin Luther
by artist: Il Gardellino
by artist: Leo Van Doeselaar
by artist: Bruno Kössler
by artist: Bela Schürmann
by artist: Alex Potter
by artist: Florian Lohmann
by artist: Henryk Böhm
in album: Bach: Cantatas, BWV 35 & 169
  type: MusicAlbum
  date published: 2023-02-24
popularity: 8
genre: classical
genre: classical-piano
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3547bbeb32dbe9439b977d2862bd376ad9dd4235bb12a7336e58a165e078e6. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEE022109217.
  date published: 2026-07-31T19:53:13Z
audio: Cantata "Gott soll allein mein Herze haben", BWV 169: No. 7. Chorale, "Du süße Liebe, schenk uns deine Gunst" (Chorus)
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  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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    value: 1
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    type: PropertyValue
    value: 5
  additional property: Danceability
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    value: 0.203
  additional property: Energy
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    value: 0.135
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.966
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.93
  additional property: Liveness
    type: PropertyValue
    value: 0.132
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.253
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.56
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: BEE022109217
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960455
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T19:53:13+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BEE022109217
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960455
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960455
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T19:53:13+00:00
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

Sonata in D Major, BWV 1028: II. Allegro
type: MusicRecording
duration: PT4M21S
duration ms: 261440
explicit: false
by artist: Johann Sebastian Bach
by artist: Mieneke van der Velden
by artist: Leo Van Doeselaar
in album: Bach: Da Gamba
  type: MusicAlbum
  date published: 2008
genre: classical
genre: classical-piano
isrc code: DEY320801012
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T13:35:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9fa1b87cb1ab467b72b96969ff166c5dcb2ac56e8a52c397e4c7331d85694d80
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/DEY320801012
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa1b87cb1ab467b72b96969ff166c5dcb2ac56e8a52c397e4c7331d85694d80. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEY320801012.
  date published: 2026-07-08T03:22:41Z
audio: Sonata in D Major, BWV 1028: II. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 152.768
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.248
  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: 0.703
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.652
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.907
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sonata in D Major, BWV 1028: I. Adagio
type: MusicRecording
duration: PT2M21S
duration ms: 141440
explicit: false
by artist: Johann Sebastian Bach
by artist: Mieneke van der Velden
by artist: Leo Van Doeselaar
in album: Bach: Da Gamba
  type: MusicAlbum
  date published: 2008
genre: classical
genre: classical-piano
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849b92919f91c15b2b9eb77c34b15d1a4ab3fe7db3d0fded8a7b48a352d7e5be. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/DEY320801011.
  date published: 2026-07-30T20:09:33Z
audio: Sonata in D Major, BWV 1028: I. Adagio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 94.675
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.177
  additional property: Energy
    type: PropertyValue
    value: 0.005
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.948
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.662
  additional property: Liveness
    type: PropertyValue
    value: 0.113
  additional property: Valence (Positivity)
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    value: 0.286
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.369
  additional property: Key Name
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    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: DEY320801011
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T20:09:33+00:00
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

Gloria
type: MusicRecording
duration: PT0M50S
duration ms: 50706
explicit: false
by artist: Gioachino Rossini
by artist: Quink Vocal Ensemble
by artist: Leo Van Doeselaar
by artist: Wyneke Jordans
by artist: Dirk Luijmes
in album: Rossini: Petite Messe Solennelle
  type: MusicAlbum
  date published: 2007-02-26
popularity: 1
genre: classical
genre: opera
isrc code: NLB150600047
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T20:37:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x64f6f942bfb84715ca428f6f8749a061e4aa26073a3d16bc68a1c6f316541eb5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB150600047
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f6f942bfb84715ca428f6f8749a061e4aa26073a3d16bc68a1c6f316541eb5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLB150600047.
  date published: 2026-07-08T03:39:04Z
audio: Gloria
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.182
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.461
  additional property: Energy
    type: PropertyValue
    value: 0.012
  additional property: Speechiness
    type: PropertyValue
    value: 0.089
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.085
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.302
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.758
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Crucifixus
type: MusicRecording
duration: PT3M8S
duration ms: 188173
explicit: false
by artist: Gioachino Rossini
by artist: Quink Vocal Ensemble
by artist: Leo Van Doeselaar
by artist: Wyneke Jordans
by artist: Dirk Luijmes
in album: Rossini: Petite Messe Solennelle
  type: MusicAlbum
  date published: 2007-02-26
popularity: 2
genre: classical
genre: opera
isrc code: NLB150600055
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T13:37:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x215c742a6065affd127450374ac00c3defc149ccf3697a625697ca7ea2ed2bac
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/NLB150600055
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215c742a6065affd127450374ac00c3defc149ccf3697a625697ca7ea2ed2bac. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLB150600055.
  date published: 2026-07-08T03:22:41Z
audio: Crucifixus
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.976
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.283
  additional property: Energy
    type: PropertyValue
    value: 0.069
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.03
  additional property: Liveness
    type: PropertyValue
    value: 0.118
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.762
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cum Sancto Spiritu
type: MusicRecording
duration: PT6M21S
duration ms: 381746
explicit: false
by artist: Gioachino Rossini
by artist: Quink Vocal Ensemble
by artist: Leo Van Doeselaar
by artist: Wyneke Jordans
by artist: Dirk Luijmes
in album: Rossini: Petite Messe Solennelle
  type: MusicAlbum
  date published: 2007-02-26
popularity: 2
genre: classical
genre: opera
isrc code: NLB150600053
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:24:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x694650ffb93f2f0d79950c15ee25333d345d57a1e33a1a79f6c31ad927c834cc
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/NLB150600053
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Cum Sancto Spiritu
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Kyrie
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by artist: Quink Vocal Ensemble
by artist: Leo Van Doeselaar
by artist: Wyneke Jordans
by artist: Dirk Luijmes
in album: Rossini: Petite Messe Solennelle
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popularity: 5
genre: classical
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subject of: OpenTimestamps Proof of Existence
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audio: Kyrie
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Introduction, Theme and Variations in E Minor On 'Trockne Blumen' from the Song Cycle 'Die schöne Müllerin', D. 802: III. Variations I-VII
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by artist: Marten Root
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genre: classical
genre: classical-piano
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T08:56:20Z
audio: Introduction, Theme and Variations in E Minor On 'Trockne Blumen' from the Song Cycle 'Die schöne Müllerin', D. 802: III. Variations I-VII
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Introduction, Theme and Variations in E Minor On 'Trockne Blumen' from the Song Cycle 'Die schöne Müllerin', D. 802: I. Introduction
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duration: PT3M6S
duration ms: 186666
explicit: false
by artist: Franz Schubert
by artist: Marten Root
by artist: Leo Van Doeselaar
in album: Schubert: Flute Variations, D. 802 & Guitar Quintet, D. 96
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  date published: 2002-08-19
genre: classical
genre: classical-piano
genre: chamber-music
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  date published: 2026-08-01T04:52:22Z
audio: Introduction, Theme and Variations in E Minor On 'Trockne Blumen' from the Song Cycle 'Die schöne Müllerin', D. 802: I. Introduction
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Prelude and Fugue in E-Flat Major, BWV 552: I. Praeludium
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popularity: 4
genre: classical
genre: classical-piano
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T03:53:27Z
audio: Prelude and Fugue in E-Flat Major, BWV 552: I. Praeludium
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Chorale Preludes from "Clavier-Übung III", BWV 669-689: VIII. Allein Gott in der Höh sei Ehr, BWV 676
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duration: PT5M38S
duration ms: 338093
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by artist: Johann Sebastian Bach
by artist: Leo Van Doeselaar
in album: Bach: Kyrie, Gott Vater in Ewigkeit
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popularity: 1
genre: classical
genre: classical-piano
isrc code: NLA460711760
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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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  date published: 2026-07-08T03:22:41Z
audio: Chorale Preludes from "Clavier-Übung III", BWV 669-689: VIII. Allein Gott in der Höh sei Ehr, BWV 676
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Chorale Preludes from "Clavier-Übung III", BWV 669-689: X. Dies sind die heilgen zehn Gebot, BWV 678
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by artist: Leo Van Doeselaar
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popularity: 1
genre: classical
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  date published: 2026-07-08T08:56:20Z
audio: Chorale Preludes from "Clavier-Übung III", BWV 669-689: X. Dies sind die heilgen zehn Gebot, BWV 678
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  additional property: Valence (Positivity)
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Chorale Preludes from "Clavier-Übung III", BWV 669-689: I. Kyrie, Gott Vater in Ewigkeit, BWV 669
type: MusicRecording
duration: PT3M38S
duration ms: 218533
explicit: false
by artist: Johann Sebastian Bach
by artist: Leo Van Doeselaar
in album: Bach: Kyrie, Gott Vater in Ewigkeit
  type: MusicAlbum
  date published: 1999
popularity: 1
genre: classical
genre: classical-piano
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6970134fe60954fb563676bf551b071b90eace861fd8f1088a6ca58788caf57. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA460711755.
  date published: 2026-07-31T19:53:13Z
audio: Chorale Preludes from "Clavier-Übung III", BWV 669-689: I. Kyrie, Gott Vater in Ewigkeit, BWV 669
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  additional property: Loudness (dB)
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isrc code: NLA460711755
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Chorale Preludes from "Clavier-Übung III", BWV 669-689: II. Christe, aller Welt Trost, BWV 670
type: MusicRecording
duration: PT4M47S
duration ms: 287133
explicit: false
by artist: Johann Sebastian Bach
by artist: Leo Van Doeselaar
in album: Bach: Kyrie, Gott Vater in Ewigkeit
  type: MusicAlbum
  date published: 1999
popularity: 1
genre: classical
genre: classical-piano
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9d1e35e61efc474f74873e3a6ee02fb8530b4df248341ad2bd887701c41c92. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA460711756.
  date published: 2026-07-31T02:51:48Z
audio: Chorale Preludes from "Clavier-Übung III", BWV 669-689: II. Christe, aller Welt Trost, BWV 670
  type: AudioObject
  additional property: Tempo (BPM)
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additional property: OTSBitcoinBlockVerifyURL
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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

Chorale Preludes from "Clavier-Übung III", BWV 669-689: III. Kyrie, Gott heiliger Geist, BWV 671
type: MusicRecording
duration: PT4M44S
duration ms: 284866
explicit: false
by artist: Johann Sebastian Bach
by artist: Leo Van Doeselaar
in album: Bach: Kyrie, Gott Vater in Ewigkeit
  type: MusicAlbum
  date published: 1999
popularity: 1
genre: classical
genre: classical-piano
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10d6460546d117fa61e61488acef91a6df10b4c292b7750e348042c6b2a5fe4. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/NLA460711757.
  date published: 2026-07-31T05:17:02Z
audio: Chorale Preludes from "Clavier-Übung III", BWV 669-689: III. Kyrie, Gott heiliger Geist, BWV 671
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isrc code: NLA460711757
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T05:17:02+00:00
additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T05:17:02+00:00
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

Fantasy in F Minor, D. 940, Op. 103: II. Allegro vivace - Con delicatezza
type: MusicRecording
duration: PT5M45S
duration ms: 345226
explicit: false
by artist: Franz Schubert
by artist: Wyneke Jordans
by artist: Leo Van Doeselaar
in album: Schubert: Four hand piano music
  type: MusicAlbum
  date published: 1991-01-01
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: QMFMF1425548
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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  value: 2026-07-07T17:26:06+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF1425548
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
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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 0xa6f0647393b2c16b265bca10a4754980eb99522d0b65911c3db429d352e13f6f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF1425548.
  date published: 2026-07-08T03:22:41Z
audio: Fantasy in F Minor, D. 940, Op. 103: II. Allegro vivace - Con delicatezza
  type: AudioObject
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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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Fantasy in F Minor, D. 940, Op. 103: I. Allegro molto moderato - Largo
type: MusicRecording
duration: PT7M31S
duration ms: 451333
explicit: false
by artist: Franz Schubert
by artist: Wyneke Jordans
by artist: Leo Van Doeselaar
in album: Schubert: Four hand piano music
  type: MusicAlbum
  date published: 1991-01-01
genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e15506555bec63ea77415b852f3eb9f305a15de401f1d0c1b42c07dc92c3ef. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/QMFMF1425547.
  date published: 2026-07-29T22:13:32Z
audio: Fantasy in F Minor, D. 940, Op. 103: I. Allegro molto moderato - Largo
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 121.061
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.424
  additional property: Energy
    type: PropertyValue
    value: 0.087
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.894
  additional property: Liveness
    type: PropertyValue
    value: 0.104
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.164
  additional property: Loudness (dB)
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  additional property: Key Name
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isrc code: QMFMF1425547
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Ma Mère L'Oye, V Le jardin féerique
type: MusicRecording
duration: PT3M7S
duration ms: 187333
explicit: false
by artist: Maurice Ravel
by artist: Wyneke Jordans
by artist: Leo Van Doeselaar
in album: Ravel, Bolero, Rapsodie Espagnole, Ma Mère l'Oye, Fanfare, Music for piano, four hands
  type: MusicAlbum
  date published: 1988-01-01
genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
isrc code: FR0O70716170
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:50:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x37c2dd4732e1118b35c97bd70c20b2776a16d61247982ddcc110267a6fd5358a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR0O70716170
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
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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 0x37c2dd4732e1118b35c97bd70c20b2776a16d61247982ddcc110267a6fd5358a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR0O70716170.
  date published: 2026-07-08T08:56:20Z
audio: Ma Mère L'Oye, V Le jardin féerique
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 87.89
  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
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.861
  additional property: Liveness
    type: PropertyValue
    value: 0.081
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.062
  additional property: Loudness (dB)
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  additional property: Key Name
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Ma Mère L'Oye, IV Les entretiens de la Belle et de la Bête
type: MusicRecording
duration: PT4M7S
duration ms: 247960
explicit: false
by artist: Maurice Ravel
by artist: Wyneke Jordans
by artist: Leo Van Doeselaar
in album: Ravel, Bolero, Rapsodie Espagnole, Ma Mère l'Oye, Fanfare, Music for piano, four hands
  type: MusicAlbum
  date published: 1988-01-01
genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bd2686b969f1e0bd542d9b137b2e53a1533837a4a6f247c37dad0cee77bee4. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR0O70716160.
  date published: 2026-07-31T23:30:38Z
audio: Ma Mère L'Oye, IV Les entretiens de la Belle et de la Bête
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.908
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.321
  additional property: Energy
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Ravel, Bolero, Rapsodie Espagnole, Ma Mère l'Oye, Fanfare, Music for piano, four hands
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George Frideric Handel, Organ Works Vol 2
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George Frideric Handel, Organ Works Vol 1
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George Frideric Handel, Music for Organ
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subject of: OpenTimestamps Proof of Existence
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Kleine Kammermusik, Op. 24, No. 2, for wind quintet: 4. Schnelle Viertel
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subject of: OpenTimestamps Proof of Existence
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Kleine Kammermusik, Op. 24, No. 2, for wind quintet: 5. Sehr lebhaft
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Kammermusik No. 2, Op. 36 No. 1 for Piano and Chamber Orchestra: Sehr lebhafte Achtel
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
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Bach: Bach & Luther
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Harmonium Atlas
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    date published: 2026-07-08T03:22:41Z
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Bach After Bach
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Röntgen: Orchestral, Choral & Chamber Music
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