Frederick the Great
type: MusicGroup
description: Frederick II (; 24 January 171217 August 1786) was the monarch of Prussia from 1740 until his death in 1786. He was the last Hohenzollern monarch titled King in Prussia, declaring himself King of P
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album: Frederick Ii: Sinfonias / Flute Concertos
  type: MusicAlbum
  date published: 1985-01-01
album: Frederick Ii: Sinfonias / Flute Concertos
  type: MusicAlbum
  date published: 1985-01-01
  track: Sinfonia in G Major: I. Allegro
  track: Sinfonia in G Major: II. Andante
  track: Sinfonia in G Major: III. Presto
  track: Flute Concerto in G Major: I. Allegro
  track: Flute Concerto in G Major: III. Allegro assai
  track: Flute Concerto No. 3 in C Major: I. Allegro
  track: Flute Concerto No. 3 in C Major: II. Grave
  track: Flute Concerto No. 3 in C Major: III. Allegro assai
  track: Sinfonia in D Major: I. Allegro assai
  track: Sinfonia in D Major: II. Andante (espressivo)
  track: Sinfonia in D Major: III. Scherzando: Allegro
album: Broadway USA, Vol. #4
  type: MusicAlbum
  date published: 2011-11-24
album: Frederick II, King of Prussia: Rheinsberg Sonatas
  type: MusicAlbum
  date published: 2012-08-10
album: King Frederick the Great of Prussia 7 Flute Sonatas
  type: MusicAlbum
  date published: 2014-07-15
album: King Frederick the Great of Prussia 7 Flute Sonatas
  type: MusicAlbum
  date published: 2014-07-15
album: Broadway USA, Vol 8: Bobby Lee's Good American Musical Show
  type: MusicAlbum
  date published: 2017-03-22
album: Frederick II The Great: Nine Sonatas for Flute & Harpsichord
  type: MusicAlbum
  date published: 2022-01-28
  track: Flute Sonata in E-Flat Major, No. 111 Catalogue of the King: II. Allegro
  track: Flute Sonata in E-Flat Major, No. 111 Catalogue of the King: III. Allegro
  track: Flute Sonata in E Minor, No. 154 Catalogue of the King: I. Grave
  track: Flute Sonata in E-Flat Major, No. 111 Catalogue of the King: I. Affettuoso
  track: Flute Sonata in C Minor, No. 114 Catalogue of the King: I. Grave e Cantabile
album: Sinfonia
  type: MusicAlbum
  date published: 2023-10-09
album: Sinfonia Church Organ
  type: MusicAlbum
  date published: 2023-11-20
album: Marimba Sinfonia Christmas
  type: MusicAlbum
  date published: 2023-12-13
track: Flute Concerto No. 3 in C Major: III. Allegro assai
track: Flute Concerto No. 3 in C Major: I. Allegro
track: Mollwitz March in F Major

Sinfonia in G Major: I. Allegro
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  date published: 2026-07-02T03:30:09Z
audio: Sinfonia in G Major: I. Allegro
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Sinfonia in G Major: II. Andante
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  date published: 2026-07-02T05:09:12Z
audio: Sinfonia in G Major: II. Andante
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Sinfonia in G Major: III. Presto
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by artist: Frederick the Great
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  date published: 2026-07-02T03:30:09Z
audio: Sinfonia in G Major: III. Presto
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Flute Concerto in G Major: I. Allegro
type: MusicRecording
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by artist: Frederick the Great
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  date published: 2026-07-02T03:55:08Z
audio: Flute Concerto in G Major: I. Allegro
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Flute Concerto in G Major: III. Allegro assai
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  date published: 2026-07-02T05:09:12Z
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    value: Major

Flute Concerto No. 3 in C Major: I. Allegro
type: MusicRecording
duration: PT4M51S
duration ms: 291866
explicit: false
by artist: Frederick the Great
in album: Frederick Ii: Sinfonias / Flute Concertos
  type: MusicAlbum
  date published: 1985-01-01
isrc code: USB8U1009700
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T04:35:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeb65517f5abf712d3b3db332e76295eff6d796ec6cdc1ceb13bfbb70a4a79b9f
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/USB8U1009700
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+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: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+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 0xeb65517f5abf712d3b3db332e76295eff6d796ec6cdc1ceb13bfbb70a4a79b9f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USB8U1009700.
  date published: 2026-07-02T05:09:12Z
audio: Flute Concerto No. 3 in C Major: I. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 128.81
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
    value: 0.562
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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    value: 0.426
  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Flute Concerto No. 3 in C Major: II. Grave
type: MusicRecording
duration: PT5M17S
duration ms: 317973
explicit: false
by artist: Frederick the Great
in album: Frederick Ii: Sinfonias / Flute Concertos
  type: MusicAlbum
  date published: 1985-01-01
isrc code: USB8U1009701
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T16:19:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb5b7d8515a540080067852761ce08fb7b579d858e766dd4b3db3454a746f279e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1009701
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
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: 956312
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T05:09:12+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 0xb5b7d8515a540080067852761ce08fb7b579d858e766dd4b3db3454a746f279e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USB8U1009701.
  date published: 2026-07-02T05:09:12Z
audio: Flute Concerto No. 3 in C Major: II. Grave
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 93.993
  additional property: Musical Key
    type: PropertyValue
    value: 0
  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: 0.213
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.939
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.934
  additional property: Liveness
    type: PropertyValue
    value: 0.173
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.075
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.95
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
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Flute Concerto No. 3 in C Major: III. Allegro assai
type: MusicRecording
duration: PT4M33S
duration ms: 273133
explicit: false
by artist: Frederick the Great
in album: Frederick Ii: Sinfonias / Flute Concertos
  type: MusicAlbum
  date published: 1985-01-01
isrc code: USB8U1009702
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T03:46:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x46b5a9dafab51e54c6ee2fadda5a1dccfbb6743f92472aba7fb65243a46a32c7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1009702
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49+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: 956889
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-06T06:56:49+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 0x46b5a9dafab51e54c6ee2fadda5a1dccfbb6743f92472aba7fb65243a46a32c7. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USB8U1009702.
  date published: 2026-07-06T07:16:32Z
audio: Flute Concerto No. 3 in C Major: III. Allegro assai
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.228
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.587
  additional property: Energy
    type: PropertyValue
    value: 0.072
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.955
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.857
  additional property: Liveness
    type: PropertyValue
    value: 0.089
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.421
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.575
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sinfonia in D Major: I. Allegro assai
type: MusicRecording
duration: PT3M33S
duration ms: 213733
explicit: false
by artist: Frederick the Great
in album: Frederick Ii: Sinfonias / Flute Concertos
  type: MusicAlbum
  date published: 1985-01-01
isrc code: USB8U1009703
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T17:55:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9b2c2ec11b70b93108d9a2ecd6e5e94cb0e65104199d808368c1565e63cc33a1
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/USB8U1009703
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
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: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+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 0x9b2c2ec11b70b93108d9a2ecd6e5e94cb0e65104199d808368c1565e63cc33a1. 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/USB8U1009703.
  date published: 2026-07-02T03:30:09Z
audio: Sinfonia in D Major: I. Allegro assai
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.844
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.543
  additional property: Energy
    type: PropertyValue
    value: 0.203
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.952
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.808
  additional property: Liveness
    type: PropertyValue
    value: 0.079
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.578
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.171
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sinfonia in D Major: II. Andante (espressivo)
type: MusicRecording
duration: PT4M34S
duration ms: 274066
explicit: false
by artist: Frederick the Great
in album: Frederick Ii: Sinfonias / Flute Concertos
  type: MusicAlbum
  date published: 1985-01-01
isrc code: USB8U1009704
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T04:37:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2431dafbba0026ebf84a494e774eaff4ad26051531ea3c89537704c1fb57970b
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/USB8U1009704
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+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: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+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 0x2431dafbba0026ebf84a494e774eaff4ad26051531ea3c89537704c1fb57970b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USB8U1009704.
  date published: 2026-07-02T05:09:12Z
audio: Sinfonia in D Major: II. Andante (espressivo)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.877
  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: 0.177
  additional property: Energy
    type: PropertyValue
    value: 0.041
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.922
  additional property: Liveness
    type: PropertyValue
    value: 0.158
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.15
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.861
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sinfonia in D Major: III. Scherzando: Allegro
type: MusicRecording
duration: PT2M55S
duration ms: 175426
explicit: false
by artist: Frederick the Great
in album: Frederick Ii: Sinfonias / Flute Concertos
  type: MusicAlbum
  date published: 1985-01-01
isrc code: USB8U1009705
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T12:27:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x66922bdeb60fcc1a098736472cd8c72a5e756e500f43a7049142dcd7f0bd4219
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1009705
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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: 953528
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T15:41:10+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 0x66922bdeb60fcc1a098736472cd8c72a5e756e500f43a7049142dcd7f0bd4219. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USB8U1009705.
  date published: 2026-06-13T15:41:10Z
audio: Sinfonia in D Major: III. Scherzando: Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.201
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.696
  additional property: Energy
    type: PropertyValue
    value: 0.282
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.925
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.645
  additional property: Liveness
    type: PropertyValue
    value: 0.288
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.926
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.158
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Flute Sonata in E-Flat Major, No. 111 Catalogue of the King: II. Allegro
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duration: PT3M6S
duration ms: 186803
explicit: false
by artist: Frederick the Great
in album: Frederick II The Great: Nine Sonatas for Flute & Harpsichord
  type: MusicAlbum
  date published: 2022-01-28
isrc code: NLY332103695
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:29:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0a118bd0046f4e0c8c05d02e08069a644bd3487f017d48cca7907b86899dc369
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/NLY332103695
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
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  date published: 2026-07-08T08:56:20Z
audio: Flute Sonata in E-Flat Major, No. 111 Catalogue of the King: II. Allegro
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Flute Sonata in E-Flat Major, No. 111 Catalogue of the King: III. Allegro
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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: 2026-07-08T08:56:20Z
audio: Flute Sonata in E-Flat Major, No. 111 Catalogue of the King: III. Allegro
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Flute Sonata in E Minor, No. 154 Catalogue of the King: I. Grave
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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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additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:39:04Z
audio: Flute Sonata in E Minor, No. 154 Catalogue of the King: I. Grave
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Flute Sonata in E-Flat Major, No. 111 Catalogue of the King: I. Affettuoso
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duration: PT2M23S
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explicit: false
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in album: Frederick II The Great: Nine Sonatas for Flute & Harpsichord
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T10:20:10Z
audio: Flute Sonata in E-Flat Major, No. 111 Catalogue of the King: I. Affettuoso
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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Flute Sonata in C Minor, No. 114 Catalogue of the King: I. Grave e Cantabile
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T19:53:57Z
audio: Flute Sonata in C Minor, No. 114 Catalogue of the King: I. Grave e Cantabile
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additional property: CopyrightID
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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Flute Concerto No. 3 in C Major: III. Allegro assai
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duration: PT4M20S
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by artist: Frederick the Great
by artist: Konrad Hünteler
by artist: Cappella Coloniensis
by artist: Ulf Bjorlin
in album: Festive Concert in Sanssouci Castle
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popularity: 22
isrc code: USB8U1013089
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Flute Concerto No. 3 in C Major: III. Allegro assai
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Flute Concerto No. 3 in C Major: I. Allegro
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duration: PT4M59S
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by artist: Konrad Hünteler
by artist: Cappella Coloniensis
by artist: Ulf Bjorlin
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popularity: 9
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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additional property: TokenDeploymentConfirmed
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Flute Concerto No. 3 in C Major: I. Allegro
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Mollwitz March in F Major
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duration: PT1M35S
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by artist: Berlin Radio Symphony Orchestra, members
by artist: Caspar Richter
in album: Festive Concert in Sanssouci Castle
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  date published: 2010-08-01
popularity: 4
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded80393d84739691f5689fc0fcc205d9c39082bdede6beff2edfbe3a39487b9. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1009934.
  date published: 2026-07-29T23:23:05Z
audio: Mollwitz March in F Major
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 165.561
  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: 0.612
  additional property: Energy
    type: PropertyValue
    value: 0.191
  additional property: Speechiness
    type: PropertyValue
    value: 0.08
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.873
  additional property: Liveness
    type: PropertyValue
    value: 0.137
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.883
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.951
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USB8U1009934
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: 960164
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T23:23:05+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1009934
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960164
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960164
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T23:23:05+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