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genre: chamber music
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  date published: 2026-06-19T03:22:39Z
album: Anner Bylsma plays Concertos and Ensemble Works
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  track: Souvenir de Spa, Op. 2
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      date published: 2026-07-08T03:22:41Z
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  track: Cello Concerto in C Major, Op. 4: I. Allegro aperto
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album: Haydn: Missa "Sunt bona mixta malis" & Missa brevis and More
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album: Mozart: Clarinet Quintet in A Major, K. 581
album: Mendelssohn & Gade: String Octets
album: L'Archibudelli Play Beethoven
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album: Klassik am Sonntagmorgen
album: Schubert: Piano Quintet in A Major "Trout", Arpeggione Sonata in A Minor & Piano Trio in E-Flat Major "Notturno"
album: Gute Laune Klassik 5
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album: Mozart - Greatest Hits, Volume I
album: Gute Besserung
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album: Haydn: Works for Horn
album: Haydn: Die Schöpfung; Heiligmesse; Theresienmesse; Nelsonmesse; Paukenmesse etc.
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album: #top10tracks - Classical Chill
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album: Mozart: A Musical Joke; Clarinet Quintet; Horn Quintet; Kegelstatt Trio; String Quintets Nos. 3 & 4 etc.
album: I Capolavori di Mozart
album: Klassik zum Menü
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album: Enjoy Schubert
album: #top10tracks - Chamber Music Elegance
album: Sleeping with Schubert
album: Bruckner: String Quintet in F Major; Intermezzo; Rondo & String Quartet in C Minor
album: Mozart: Divertimentos, K. 334 & K. 247

Der Greis, Hob. XXVc:5 (Fragment)
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String Quartet in D Minor, Op. 103, Hob. III:83: I. Andante grazioso
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  date published: 2026-07-31T08:26:41Z
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String Quartet in D Minor, Op. 103, Hob. III:83: II. Menuetto ma non troppo presto
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  date published: 2026-07-31T15:59:18Z
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String Sextet No. 1 in B-Flat Major, Op. 18: IV. Rondo. Poco allegretto e grazioso
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0c75068794fcd4aa922752bb993c9dcb103028d21c8047f67c65ae9a8f376f. 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/USSM10202561.
  date published: 2026-07-08T03:39:04Z
audio: String Sextet No. 1 in B-Flat Major, Op. 18: IV. Rondo. Poco allegretto e grazioso
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.963
  additional property: Musical Key
    type: PropertyValue
    value: 10
  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: 0.293
  additional property: Energy
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    value: 0.067
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.935
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.448
  additional property: Liveness
    type: PropertyValue
    value: 0.307
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.164
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.921
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

String Sextet No. 2 in G Major, Op. 36: I. Allegro non troppo
type: MusicRecording
duration: PT12M52S
duration ms: 772226
explicit: false
by artist: Johannes Brahms
by artist: L'Archibudelli
in album: Brahms: String Sextets
  type: MusicAlbum
  date published: 1996-07-15
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: USSM10202562
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T21:55:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x550e79d4ad9be2ca74bc8f37116d53d7ea171e4e17a0166ea6256825f20dcfb1
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/USSM10202562
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 0x550e79d4ad9be2ca74bc8f37116d53d7ea171e4e17a0166ea6256825f20dcfb1. 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/USSM10202562.
  date published: 2026-07-08T03:53:27Z
audio: String Sextet No. 2 in G Major, Op. 36: I. Allegro non troppo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.129
  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: 0.204
  additional property: Energy
    type: PropertyValue
    value: 0.064
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.887
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.538
  additional property: Liveness
    type: PropertyValue
    value: 0.151
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.073
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.904
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

String Sextet No. 2 in G Major, Op. 36: II. Scherzo. Allegro non troppo
type: MusicRecording
duration: PT6M7S
duration ms: 367866
explicit: false
by artist: Johannes Brahms
by artist: L'Archibudelli
in album: Brahms: String Sextets
  type: MusicAlbum
  date published: 1996-07-15
genre: classical
genre: german-romanticism
genre: late-romantic-era
isrc code: USSM10202563
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:03:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb19f7d6eb90c504b3d66369499c110ecc4643513dab742cd34da42cd0c56194a
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/USSM10202563
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
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: 957124
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:53:27+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 0xb19f7d6eb90c504b3d66369499c110ecc4643513dab742cd34da42cd0c56194a. 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/USSM10202563.
  date published: 2026-07-08T03:53:27Z
audio: String Sextet No. 2 in G Major, Op. 36: II. Scherzo. Allegro non troppo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.996
  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: 0.288
  additional property: Energy
    type: PropertyValue
    value: 0.046
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.904
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.118
  additional property: Liveness
    type: PropertyValue
    value: 0.112
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.234
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.273
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

String Sextet No. 1 in B-Flat Major, Op. 18: II. Andante ma moderato
type: MusicRecording
duration: PT8M12S
duration ms: 492160
explicit: false
by artist: Johannes Brahms
by artist: L'Archibudelli
in album: Brahms: String Sextets
  type: MusicAlbum
  date published: 1996-07-15
genre: classical
genre: german-romanticism
genre: late-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 0xed2f7a781a5e355b375ead53ab909b5bd88efc1ba892d51b901508496c537659. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USSM10202559.
  date published: 2026-07-31T12:24:41Z
audio: String Sextet No. 1 in B-Flat Major, Op. 18: II. Andante ma moderato
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.745
  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: 0.22
  additional property: Energy
    type: PropertyValue
    value: 0.104
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.927
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.905
  additional property: Liveness
    type: PropertyValue
    value: 0.136
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.109
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.858
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USSM10202559
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: 960397
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T12:24:41+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10202559
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41+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 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

String Sextet No. 1 in B-Flat Major, Op. 18: III. Scherzo. Allegro molto
type: MusicRecording
duration: PT2M56S
duration ms: 176000
explicit: false
by artist: Johannes Brahms
by artist: L'Archibudelli
in album: Brahms: String Sextets
  type: MusicAlbum
  date published: 1996-07-15
genre: classical
genre: german-romanticism
genre: late-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 0x5b8f1c63c95417537b407ff7ce9e8a31dbd8370fdd96ae5950a4a2cff11da5e9. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/USSM10202560.
  date published: 2026-08-01T04:30:37Z
audio: String Sextet No. 1 in B-Flat Major, Op. 18: III. Scherzo. Allegro molto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.252
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.421
  additional property: Energy
    type: PropertyValue
    value: 0.176
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.909
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.79
  additional property: Liveness
    type: PropertyValue
    value: 0.19
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.537
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.819
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USSM10202560
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: 960509
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-08-01T04:30:37+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10202560
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960509
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960509
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T04:30:37+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

Notturno No. 6 in G Major, Hob. II:30: II. Andante
type: MusicRecording
duration: PT3M13S
duration ms: 193226
explicit: false
by artist: Joseph Haydn
by artist: L'Archibudelli
in album: Klassik am Sonntagmorgen
  type: MusicAlbum
  date published: 2015-09-25
isrc code: USSM19605107
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T18:56:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xec60fb21576cae17085dd075e2411fe96b36dae4ce96fce7135a99f1ace6a2be
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/USSM19605107
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
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 0xec60fb21576cae17085dd075e2411fe96b36dae4ce96fce7135a99f1ace6a2be. 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/USSM19605107.
  date published: 2026-07-08T03:20:19Z
audio: Notturno No. 6 in G Major, Hob. II:30: II. Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.386
  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: 0.403
  additional property: Energy
    type: PropertyValue
    value: 0.035
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.773
  additional property: Liveness
    type: PropertyValue
    value: 0.263
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.129
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.079
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Piano Quintet in A Major, D. 667, Op. 114 "Trout": V. Allegro giusto
type: MusicRecording
duration: PT6M18S
duration ms: 378266
explicit: false
by artist: Franz Schubert
by artist: L'Archibudelli
by artist: Jos Van Immerseel
in album: Schubert: Piano Quintet in A Major "Trout", Arpeggione Sonata in A Minor & Piano Trio in E-Flat Major "Notturno"
  type: MusicAlbum
  date published: 1998-09-29
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USSM19703938
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T04:29:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4944242c1163c4553fc6cb8238db873ec1632789b27d9e53dbf51916685a4e99
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/USSM19703938
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 0x4944242c1163c4553fc6cb8238db873ec1632789b27d9e53dbf51916685a4e99. 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/USSM19703938.
  date published: 2026-07-02T05:09:12Z
audio: Piano Quintet in A Major, D. 667, Op. 114 "Trout": V. Allegro giusto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.057
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.515
  additional property: Energy
    type: PropertyValue
    value: 0.079
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.882
  additional property: Liveness
    type: PropertyValue
    value: 0.074
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.332
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.097
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
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Piano Quintet in A Major, D. 667, Op. 114 "Trout": I. Allegro vivace
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by artist: L'Archibudelli
by artist: Jos Van Immerseel
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genre: classical
genre: classical-piano
genre: chamber-music
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  date published: 2026-07-31T17:29:52Z
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Piano Quintet in A Major, D. 667, Op. 114 "Trout": II. Andante
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by artist: Jos Van Immerseel
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genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T15:42:38Z
audio: Piano Quintet in A Major, D. 667, Op. 114 "Trout": II. Andante
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Piano Quintet in A Major, D. 667, Op. 114 "Trout": III. Scherzo
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by artist: L'Archibudelli
by artist: Jos Van Immerseel
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genre: classical
genre: classical-piano
genre: chamber-music
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-08-01T03:13:03Z
audio: Piano Quintet in A Major, D. 667, Op. 114 "Trout": III. Scherzo
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Piano Quintet in A Major, D. 667, Op. 114 "Trout": IV. Tema con variazioni
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by artist: Jos Van Immerseel
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genre: classical
genre: classical-piano
genre: chamber-music
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  date published: 2026-08-01T01:44:32Z
audio: Piano Quintet in A Major, D. 667, Op. 114 "Trout": IV. Tema con variazioni
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Feel Good Klassik, Vol. 3
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  additional property: OTSVerifyInstructions
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track: Sextet in E-Flat Major, B26: III. Rondo moderato
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track: Concerto for Cello, Strings and Continuo in G Major, INP 18: I. Adagio
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  subject of: OpenTimestamps Proof of Existence
  audio: Concerto for Cello, Strings and Continuo in G Major, INP 18: I. Adagio
track: Ein blonder Traum: "Irgendwo auf der Welt"
track: Passagio

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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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4583b71c303f0a45fd545b94300b7dd934b59426b91c447247abf9576c5c2cc8. 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/DEE861400506.
date published: 2026-07-08T03:22:41Z

Concerto for Cello, Strings and Continuo in G Major, INP 18: I. Adagio
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Ein blonder Traum: "Irgendwo auf der Welt"
type: MusicRecording
duration: PT2M54S
duration ms: 174546
explicit: false
by artist: Werner R. Heymann
by artist: Jonas Kaufmann
by artist: Berlin Radio Symphony Orchestra
by artist: Jochen Rieder
in album: Feel Good Klassik, Vol. 3
  type: MusicAlbum
  date published: 2016-03-18
popularity: 0
isrc code: USSM11403023
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11403023
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f5e99d6470b629a9362ca410bbc60b3a0e82a069368c7c03bbb77d5ea5985e. 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/USSM11403023.
  date published: 2026-07-08T08:56:20Z
audio: Ein blonder Traum: "Irgendwo auf der Welt"
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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Passagio
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duration: PT3M30S
duration ms: 210253
explicit: false
by artist: Ludovico Einaudi
by artist: Fabio Angelini
in album: Feel Good Klassik, Vol. 3
  type: MusicAlbum
  date published: 2016-03-18
popularity: 25
genre: classical
genre: neoclassical
isrc code: DEE861300922
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x481bd3167c12d4824b7752bb33487cab63f45c304a16139baa734fbc8d7d2392
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953536
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE861300922
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481bd3167c12d4824b7752bb33487cab63f45c304a16139baa734fbc8d7d2392. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEE861300922.
  date published: 2026-06-13T17:25:41Z
audio: Passagio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.851
  additional property: Musical Key
    type: PropertyValue
    value: 11
  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: 0.294
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  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)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.13
  additional property: Key Name
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Das Beste: Mozart
type: MusicAlbum
date published: 2013-06-24
track: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": I. Allegro
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  duration: PT7M30S
  duration ms: 450466
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Bruno Weil
  by artist: Tafelmusik Baroque Orchestra
  in album: Das Beste: Mozart
    type: MusicAlbum
    date published: 2013-06-24
  genre: classical
  genre: classical-era
  isrc code: USSM10410290
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T09:24:29+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3f424373900359c08b505aa75fbc0abc6c4f9496c8d5b88cb30ef81f93778a4c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957819
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10410290
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-13T07:53:33Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f424373900359c08b505aa75fbc0abc6c4f9496c8d5b88cb30ef81f93778a4c. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10410290.
    date published: 2026-07-13T07:53:33Z
  audio: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": I. Allegro
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      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
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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track: Le nozze di Figaro, K. 492: Overture
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  duration: PT4M12S
  duration ms: 252573
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Sir Colin Davis
  in album: Das Beste: Mozart
    type: MusicAlbum
    date published: 2013-06-24
  genre: classical
  genre: classical-era
  isrc code: DEE470100282
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T18:33:44+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc3e10513c67834f739668493805164e2d455832c15a17c3bbe2c83cb4b860503
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
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  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/DEE470100282
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e10513c67834f739668493805164e2d455832c15a17c3bbe2c83cb4b860503. 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/DEE470100282.
    date published: 2026-07-08T08:56:20Z
  audio: Le nozze di Figaro, K. 492: Overture
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
      type: PropertyValue
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    additional property: Key Name
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    additional property: Mode Name
      type: PropertyValue
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track: Le nozze di Figaro, K.492: Act II: Voi che sapete
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  duration: PT2M50S
  duration ms: 170266
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Margaret Price
  in album: Das Beste: Mozart
    type: MusicAlbum
    date published: 2013-06-24
  genre: classical
  genre: classical-era
  isrc code: GBARU0400053
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-12T01:28:27+00:00
  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0xe2e038358326b91d6cbb587c29c266f500f4461dfc8ada0a3e3f18dfcf69d1b3
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  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Le nozze di Figaro, K.492: Act II: Voi che sapete
track: Die Zauberflöte, K. 620: March of the Priests
track: Symphony No. 41 in C Major, K. 551, "Jupiter": I. Allegro vivace
track: Die Zauberflöte: Dies Bildnis ist bezaubernd schön
track: Symphony No. 41 in C Major, K. 551, "Jupiter": II. Andante cantabile
track: Symphony No. 41 in C Major, K. 551, "Jupiter": III. Menuetto: Allegretto
track: Serenade No. 9 in D Major, K. 320 "Posthorn": III. Concertante - Andante grazioso
track: Piano Concerto No. 21 in C Major, K. 467, "Elvira Madigan": II. Andante
track: Concerto in C Major for Flute, Harp and Orchestra, K. 299: II. Andantino
track: Concerto for Clarinet and Orchestra in A Major, K. 622: III. Rondo. Allegro
track: Piano Sonata in A Major, K. 331: III. Alla turca. Allegretto
track: Concerto No. 5 in A Major for Violin and Orchestra, K. 219 "Turkish": I. Allegro aperto

OTSHash
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OTSBitcoinBlock
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value: 953528

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/953528

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBARU0400053

OTSTimestamp
type: PropertyValue
value: 2026-06-13T15:41:10Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e038358326b91d6cbb587c29c266f500f4461dfc8ada0a3e3f18dfcf69d1b3. 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/GBARU0400053.
date published: 2026-06-13T15:41:10Z

Le nozze di Figaro, K.492: Act II: Voi che sapete
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additional property: Tempo (BPM)
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additional property: Musical Key
  type: PropertyValue
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additional property: Mode (Major/Minor)
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additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.341
additional property: Energy
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additional property: Speechiness
  type: PropertyValue
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additional property: Acousticness
  type: PropertyValue
  value: 0.992
additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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  value: Bb
additional property: Mode Name
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Die Zauberflöte, K. 620: March of the Priests
type: MusicRecording
duration: PT2M43S
duration ms: 163466
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: James Levine
by artist: Wiener Philharmoniker
by artist: Zdzislawa Donat
in album: Das Beste: Mozart
  type: MusicAlbum
  date published: 2013-06-24
genre: classical
genre: classical-era
isrc code: USBC18000198
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e860d2caec10fc3315f274aef1ca249328952c75000c80576d8687b3d736ce. 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/USBC18000198.
  date published: 2026-07-08T03:22:41Z
audio: Die Zauberflöte, K. 620: March of the Priests
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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Symphony No. 41 in C Major, K. 551, "Jupiter": I. Allegro vivace
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duration: PT8M35S
duration ms: 515360
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Günter Wand
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Die Zauberflöte: Dies Bildnis ist bezaubernd schön
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Symphony No. 41 in C Major, K. 551, "Jupiter": II. Andante cantabile
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Symphony No. 41 in C Major, K. 551, "Jupiter": III. Menuetto: Allegretto
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Serenade No. 9 in D Major, K. 320 "Posthorn": III. Concertante - Andante grazioso
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Piano Concerto No. 21 in C Major, K. 467, "Elvira Madigan": II. Andante
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Concerto in C Major for Flute, Harp and Orchestra, K. 299: II. Andantino
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Concerto for Clarinet and Orchestra in A Major, K. 622: III. Rondo. Allegro
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subject of: OpenTimestamps Proof of Existence
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audio: Concerto for Clarinet and Orchestra in A Major, K. 622: III. Rondo. Allegro
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Piano Sonata in A Major, K. 331: III. Alla turca. Allegretto
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subject of: OpenTimestamps Proof of Existence
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Concerto No. 5 in A Major for Violin and Orchestra, K. 219 "Turkish": I. Allegro aperto
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subject of: OpenTimestamps Proof of Existence
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Anner Bylsma plays Cello Suites and Sonatas
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T17:25:41Z
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    date published: 2026-07-08T03:22:41Z
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OpenTimestamps Proof of Existence
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Cello Suite No. 4 in E-Flat Major, BWV 1010: VI. Gigue
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Cello Suite No. 2 in D Minor, BWV 1008: II. Allemande
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Cello Suite No. 5 in C Minor, BWV 1011: IV. Sarabande
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subject of: OpenTimestamps Proof of Existence
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Cello Suite No. 5 in C Minor, BWV 1011: V. Gavottes I & II
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subject of: OpenTimestamps Proof of Existence
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Cello Suite No. 5 in C Minor, BWV 1011: VI. Gigue
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  date published: 2026-07-08T08:56:20Z
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Cello Suite No. 3 in C Major, BWV 1009: I. Prélude
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Cello Suite No. 6 in D Major, BWV 1012: I. Prélude
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Cello Suite No. 6 in D Major, BWV 1012: II. Allemande
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Cello Suite No. 3 in C Major, BWV 1009: III. Courante
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Cello Suite No. 3 in C Major, BWV 1009: IV. Sarabande
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subject of: OpenTimestamps Proof of Existence
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Cello Suite No. 3 in C Major, BWV 1009: VI. Gigue
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Haydn: Missa "Sunt bona mixta malis" & Missa brevis and More
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The Master Composer Series: Mozart
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Mendelssohn: String Quintets 1 & 2
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Haydn: The Last 3 String Quartets
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Brahms: String Sextets
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Mozart: Clarinet Quintet in A Major, K. 581
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Mendelssohn & Gade: String Octets
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L'Archibudelli Play Beethoven
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    date published: 2026-07-08T03:53:27Z
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Greatest Hits - Mendelssohn
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track: Spring Song, Op. 62, No. 6
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Klassik am Sonntagmorgen
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track: Serenade for Strings in E Major, Op. 22: II. Tempo di Valse
track: Symphony No. 6 in F Major, Op. 68 "Pastoral": I. Erwachen heiterer Empfindungen bei der Ankunft auf dem Lande. Allegro ma non troppo
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OpenTimestamps Proof of Existence
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Gymnopedie No. 3 (Orchestrated by Claude Debussy)
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Goldberg Variations, BWV 988: Aria. Andante espressivo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
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Serenade for Strings in E Major, Op. 22: II. Tempo di Valse
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subject of: OpenTimestamps Proof of Existence
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audio: Serenade for Strings in E Major, Op. 22: II. Tempo di Valse
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Symphony No. 6 in F Major, Op. 68 "Pastoral": I. Erwachen heiterer Empfindungen bei der Ankunft auf dem Lande. Allegro ma non troppo
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audio: Symphony No. 6 in F Major, Op. 68 "Pastoral": I. Erwachen heiterer Empfindungen bei der Ankunft auf dem Lande. Allegro ma non troppo
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Cavalleria rusticana: Act I: Intermezzo sinfonico
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Schubert: Piano Quintet in A Major "Trout", Arpeggione Sonata in A Minor & Piano Trio in E-Flat Major "Notturno"
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track: Piano Quintet in A Major, D. 667, Op. 114 "Trout": V. Allegro giusto
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track: Piano Quintet in A Major, D. 667, Op. 114 "Trout": II. Andante
track: Piano Quintet in A Major, D. 667, Op. 114 "Trout": III. Scherzo
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Gute Laune Klassik 5
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Mozart - Greatest Hits, Volume I
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Klassik zum Menü
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Enjoy Schubert
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