Cypress String Quartet
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genre: chamber music
genre: classical
description: The Cypress String Quartet was a professional classical chamber music ensemble founded in San Francisco, California, in 1996. At the time of its disbanding in June 2016, the quartet's members were: C
popularity: 6
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album: Daniel Asia: String Quartets Nos. 1, 2 and 3
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  date published: 2019-06-07
album: Elena Ruehr: Six String Quartets
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  date published: 2018-02-16
album: Brahms: String Sextets
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album: Beethoven: The Late String Quartets
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album: Beethoven: The Early String Quartets, Op. 18
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album: Beethoven: The Middle String Quartets, Opp. 59, 74, & 95
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album: Schubert: String Quintet, D.956; Quartettsatz, D.703
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album: Dvořák: Cypresses for String Quartet; String Quartet No. 13, Op. 106
album: The 15th Anniversary Album
album: How She Danced: String Quartets of Elena Ruehr
album: Lees, B.: String Quartets Nos. 1, 5 and 6
album: Higdon: Piano Trio / Voices / Impressions
album: Cypress String Quartet: Debussy, Suk, Cotton
album: Haydn, Ravel, Schulhoff
album: Power to the Women: The Best of Female Classical Composers
album: My Playlist for Painting & Drawing

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Dvořák: Cypresses for String Quartet; String Quartet No. 13, Op. 106
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track: Cypřiše (Cypresses), B152: No. 1: Já vím, že v sladké naději [I know that on my love]: Moderato
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track: Cypřiše (Cypresses), B152: No. 3: V té sladké moci očí tvých [When thy sweet glances]: Andante con moto
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  audio: Cypřiše (Cypresses), B152: No. 3: V té sladké moci očí tvých [When thy sweet glances]: Andante con moto
track: Cypřiše (Cypresses), B152: No. 4: Ó, naší lásce nekvete to vytoužené štěstí [Never will Love lead us]: Poco adagio
track: Cypřiše (Cypresses), B152: No. 5: Zde hledím na tvůj drahý list [The Old Letter]: Andante
track: Cypřiše (Cypresses), B152: No. 6: Ó, zlatá růže spanilá [You are my glorious rose]: Andante moderato
track: Cypřiše (Cypresses), B152: No. 7: Kol domu se teď potácím [I wander oft past yonder house]: Andante con moto
track: Cypřiše (Cypresses), B152: No. 8: Zde v lese u potoka [In deepest forest glade]: Lento
track: Cypřiše (Cypresses), B152: No. 9: Ó duše drahá jedinká [Thou only dear one]: Moderato
track: Cypřiše (Cypresses), B152: No. 11: Nad krajem vévodí lehký spánek [Nature lies peaceful]: Allegro scherzando

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date published: 2026-07-31T21:25:57Z

Cypřiše (Cypresses), B152: No. 3: V té sladké moci očí tvých [When thy sweet glances]: Andante con moto
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  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.195
additional property: Energy
  type: PropertyValue
  value: 0.088
additional property: Speechiness
  type: PropertyValue
  value: 0.053
additional property: Acousticness
  type: PropertyValue
  value: 0.813
additional property: Instrumentalness
  type: PropertyValue
  value: 0.576
additional property: Liveness
  type: PropertyValue
  value: 0.289
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.039
additional property: Loudness (dB)
  type: PropertyValue
  value: -23.719
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

Cypřiše (Cypresses), B152: No. 4: Ó, naší lásce nekvete to vytoužené štěstí [Never will Love lead us]: Poco adagio
type: MusicRecording
duration: PT3M35S
duration ms: 215640
explicit: false
by artist: Antonín Dvořák
by artist: Cypress String Quartet
in album: Dvořák: Cypresses for String Quartet; String Quartet No. 13, Op. 106
  type: MusicAlbum
  date published: 2013-02-12
genre: classical
genre: late-romantic-era
genre: czech-classical
isrc code: GBELX1304578
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T02:31:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5a7dfb637d92013b0df90212019e19d4c71fb724e625e5bd8e09d6675a1e0546
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960500
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX1304578
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T03:13:03Z
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 0x5a7dfb637d92013b0df90212019e19d4c71fb724e625e5bd8e09d6675a1e0546. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/GBELX1304578.
  date published: 2026-08-01T03:13:03Z
audio: Cypřiše (Cypresses), B152: No. 4: Ó, naší lásce nekvete to vytoužené štěstí [Never will Love lead us]: Poco adagio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.568
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.234
  additional property: Energy
    type: PropertyValue
    value: 0.105
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.859
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.507
  additional property: Liveness
    type: PropertyValue
    value: 0.156
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.224
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.74
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cypřiše (Cypresses), B152: No. 5: Zde hledím na tvůj drahý list [The Old Letter]: Andante
type: MusicRecording
duration: PT2M51S
duration ms: 171466
explicit: false
by artist: Antonín Dvořák
by artist: Cypress String Quartet
in album: Dvořák: Cypresses for String Quartet; String Quartet No. 13, Op. 106
  type: MusicAlbum
  date published: 2013-02-12
genre: classical
genre: late-romantic-era
genre: czech-classical
isrc code: GBELX1304579
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:13:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x29326e1e57b2d5a0df1941ccd99f7618b13eb5a623da460eeada6a6dfe44744b
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/GBELX1304579
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29326e1e57b2d5a0df1941ccd99f7618b13eb5a623da460eeada6a6dfe44744b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX1304579.
  date published: 2026-07-08T03:20:19Z
audio: Cypřiše (Cypresses), B152: No. 5: Zde hledím na tvůj drahý list [The Old Letter]: Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.597
  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: 0.183
  additional property: Energy
    type: PropertyValue
    value: 0.032
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.925
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.249
  additional property: Liveness
    type: PropertyValue
    value: 0.097
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.086
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.71
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cypřiše (Cypresses), B152: No. 6: Ó, zlatá růže spanilá [You are my glorious rose]: Andante moderato
type: MusicRecording
duration: PT1M58S
duration ms: 118960
explicit: false
by artist: Antonín Dvořák
by artist: Cypress String Quartet
in album: Dvořák: Cypresses for String Quartet; String Quartet No. 13, Op. 106
  type: MusicAlbum
  date published: 2013-02-12
genre: classical
genre: late-romantic-era
genre: czech-classical
isrc code: GBELX1304580
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:10:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c3df8d4c4fed77eb61046641bdc63682f39a3a5383e6c7732c9a935f137c3df
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX1304580
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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 0x4c3df8d4c4fed77eb61046641bdc63682f39a3a5383e6c7732c9a935f137c3df. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBELX1304580.
  date published: 2026-07-08T03:53:27Z
audio: Cypřiše (Cypresses), B152: No. 6: Ó, zlatá růže spanilá [You are my glorious rose]: Andante moderato
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.361
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.144
  additional property: Energy
    type: PropertyValue
    value: 0.102
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.794
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.197
  additional property: Liveness
    type: PropertyValue
    value: 0.081
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.12
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.373
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cypřiše (Cypresses), B152: No. 7: Kol domu se teď potácím [I wander oft past yonder house]: Andante con moto
type: MusicRecording
duration: PT1M51S
duration ms: 111413
explicit: false
by artist: Antonín Dvořák
by artist: Cypress String Quartet
in album: Dvořák: Cypresses for String Quartet; String Quartet No. 13, Op. 106
  type: MusicAlbum
  date published: 2013-02-12
genre: classical
genre: late-romantic-era
genre: czech-classical
isrc code: GBELX1304581
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T03:16:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7c61aeec06c7692346f8a3a5eedf331784a02eb1b58d1efd40843a0c4a831c88
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960503
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960503
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX1304581
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T03:41:24Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c61aeec06c7692346f8a3a5eedf331784a02eb1b58d1efd40843a0c4a831c88. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX1304581.
  date published: 2026-08-01T03:41:24Z
audio: Cypřiše (Cypresses), B152: No. 7: Kol domu se teď potácím [I wander oft past yonder house]: Andante con moto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 97.378
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.231
  additional property: Energy
    type: PropertyValue
    value: 0.158
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.832
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.126
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.078
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.792
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Cypřiše (Cypresses), B152: No. 8: Zde v lese u potoka [In deepest forest glade]: Lento
type: MusicRecording
duration: PT2M44S
duration ms: 164866
explicit: false
by artist: Antonín Dvořák
by artist: Cypress String Quartet
in album: Dvořák: Cypresses for String Quartet; String Quartet No. 13, Op. 106
  type: MusicAlbum
  date published: 2013-02-12
genre: classical
genre: late-romantic-era
genre: czech-classical
isrc code: GBELX1304582
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:41:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x05d06e726ad8c38ab98d81e5051fd0ddc64a0c5c20c612578d63f38e977296ee
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/GBELX1304582
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d06e726ad8c38ab98d81e5051fd0ddc64a0c5c20c612578d63f38e977296ee. 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/GBELX1304582.
  date published: 2026-07-08T03:22:41Z
audio: Cypřiše (Cypresses), B152: No. 8: Zde v lese u potoka [In deepest forest glade]: Lento
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.078
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.179
  additional property: Energy
    type: PropertyValue
    value: 0.084
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.861
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.013
  additional property: Liveness
    type: PropertyValue
    value: 0.12
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.043
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.309
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cypřiše (Cypresses), B152: No. 9: Ó duše drahá jedinká [Thou only dear one]: Moderato
type: MusicRecording
duration: PT2M33S
duration ms: 153466
explicit: false
by artist: Antonín Dvořák
by artist: Cypress String Quartet
in album: Dvořák: Cypresses for String Quartet; String Quartet No. 13, Op. 106
  type: MusicAlbum
  date published: 2013-02-12
genre: classical
genre: late-romantic-era
genre: czech-classical
isrc code: GBELX1304583
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T00:40:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x840d3a16ef786ab21802fd76283d31941d2cab3e8051c4aa7d2ad4f22d4f6927
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960494
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960494
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBELX1304583
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T01:44:32Z
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 0x840d3a16ef786ab21802fd76283d31941d2cab3e8051c4aa7d2ad4f22d4f6927. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GBELX1304583.
  date published: 2026-08-01T01:44:32Z
audio: Cypřiše (Cypresses), B152: No. 9: Ó duše drahá jedinká [Thou only dear one]: Moderato
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.865
  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: 0.155
  additional property: Energy
    type: PropertyValue
    value: 0.016
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.967
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.549
  additional property: Liveness
    type: PropertyValue
    value: 0.081
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.91
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cypřiše (Cypresses), B152: No. 11: Nad krajem vévodí lehký spánek [Nature lies peaceful]: Allegro scherzando
type: MusicRecording
duration: PT2M26S
duration ms: 146853
explicit: false
by artist: Antonín Dvořák
by artist: Cypress String Quartet
in album: Dvořák: Cypresses for String Quartet; String Quartet No. 13, Op. 106
  type: MusicAlbum
  date published: 2013-02-12
genre: classical
genre: late-romantic-era
genre: czech-classical
isrc code: GBELX1304585
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T18:02:44+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T18:48:12Z
audio: Cypřiše (Cypresses), B152: No. 11: Nad krajem vévodí lehký spánek [Nature lies peaceful]: Allegro scherzando
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The 15th Anniversary Album
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date published: 2011-10-01

How She Danced: String Quartets of Elena Ruehr
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Lees, B.: String Quartets Nos. 1, 5 and 6
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Higdon: Piano Trio / Voices / Impressions
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  by artist: Anne Akiko Meyers
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    date published: 2026-07-22T08:41:42Z
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track: Piano Trio: II. Fiery Red
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-31T05:48:18Z
  audio: Piano Trio: II. Fiery Red
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Cypress String Quartet: Debussy, Suk, Cotton
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Haydn, Ravel, Schulhoff
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Power to the Women: The Best of Female Classical Composers
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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track: 3 Romances, Op. 11: I. Andante
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:30:09Z
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  subject of: OpenTimestamps Proof of Existence
  audio: La Lisonjera (The Flatterer), Op. 50

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

La Lisonjera (The Flatterer), Op. 50
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My Playlist for Painting & Drawing
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date published: 2018-09-14