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Missa Solemnis in D Major, Op. 123: I. Kyrie
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Missa Solemnis in D Major, Op. 123: II. Gloria
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Missa Solemnis in D Major, Op. 123: IV. Sanctus
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Missa Solemnis in D Major, Op. 123: V. Agnus Dei
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Mozart: Mass in C Major, K. 317 "Coronation": II. Gloria
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Fierrabras, D. 796, Act I: No. 4d, Ensemble: Der Landestöchter fromme Pflichten
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Ariadne auf Naxos, Op. 60 / Opera: "Die Dame gibt mit trüben Sinn" - "Wie sie sich schwingen"
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The History of Classical Era Music (100 Famous Songs)
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Classic Masterworks - Robert Schumann
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Famous Austrian Composers
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac13330da2445a880970c24d0e4d5ebe3bf5737eb450fd89e4f0a8f7136a0e7f. 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/SEAER0702040.
  date published: 2026-07-02T05:09:12Z
audio: Mass in B Minor, BWV 232: XVI. Credo: Et incarnatus est
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  additional property: Energy
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Mass in B Minor, BWV 232: XVII. Credo: Crucifixus
type: MusicRecording
duration: PT3M17S
duration ms: 197253
explicit: false
by artist: Johann Sebastian Bach
by artist: Bach Collegium Japan Chorus
by artist: Bach Collegium Japan
by artist: Masaaki Suzuki
in album: The 99 Most Essential Choral Masterpieces
  type: MusicAlbum
  date published: 2012-09-12
popularity: 12
genre: classical
genre: classical-piano
isrc code: SEAER0702050
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
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAER0702050
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e6c3960e33472bbd9458435eafac782154049947ff532ba43f0a4a6c62282e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAER0702050.
  date published: 2026-07-02T03:55:08Z
audio: Mass in B Minor, BWV 232: XVII. Credo: Crucifixus
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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Mass in B Minor, BWV 232: XVIII. Credo: Et resurrexit
type: MusicRecording
duration: PT3M54S
duration ms: 234373
explicit: false
by artist: Johann Sebastian Bach
by artist: Bach Collegium Japan Chorus
by artist: Bach Collegium Japan
by artist: Masaaki Suzuki
in album: The 99 Most Essential Choral Masterpieces
  type: MusicAlbum
  date published: 2012-09-12
popularity: 17
genre: classical
genre: classical-piano
isrc code: SEAER0702060
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAER0702060
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ad939b70dda0a6b4f6137fd87d8f5e2155dcb5c99a1d71cff6127b39905fac. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAER0702060.
  date published: 2026-07-02T03:55:08Z
audio: Mass in B Minor, BWV 232: XVIII. Credo: Et resurrexit
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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    type: PropertyValue
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  additional property: Energy
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Mass in B Minor, BWV 232: XXI. Credo: Et exspecto
type: MusicRecording
duration: PT2M6S
duration ms: 126253
explicit: false
by artist: Johann Sebastian Bach
by artist: Bach Collegium Japan Chorus
by artist: Bach Collegium Japan
by artist: Masaaki Suzuki
in album: The 99 Most Essential Choral Masterpieces
  type: MusicAlbum
  date published: 2012-09-12
popularity: 10
genre: classical
genre: classical-piano
isrc code: SEAER0702090
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
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAER0702090
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e22cb30b81bb0f3a880e467a016cd23432668679c2f6ca5111dea6cafd725c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAER0702090.
  date published: 2026-07-02T03:55:08Z
audio: Mass in B Minor, BWV 232: XXI. Credo: Et exspecto
  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
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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: Valence (Positivity)
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Mass in B Minor, BWV 232: XXII. Sanctus
type: MusicRecording
duration: PT5M52S
duration ms: 352600
explicit: false
by artist: Johann Sebastian Bach
by artist: Bach Collegium Japan Chorus
by artist: Bach Collegium Japan
by artist: Masaaki Suzuki
in album: The 99 Most Essential Choral Masterpieces
  type: MusicAlbum
  date published: 2012-09-12
popularity: 13
genre: classical
genre: classical-piano
isrc code: SEAER0702100
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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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
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAER0702100
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a426fec74124232d3b329b59fa8e7aa79873bf96ba9c5933b31986214c3dba. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAER0702100.
  date published: 2026-07-02T03:55:08Z
audio: Mass in B Minor, BWV 232: XXII. Sanctus
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Danceability
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  additional property: Acousticness
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Mass in B Minor, BWV 232: XXV. Osanna in excelsis
type: MusicRecording
duration: PT2M40S
duration ms: 160226
explicit: false
by artist: Johann Sebastian Bach
by artist: Robin Blaze
by artist: Bach Collegium Japan Chorus
by artist: Bach Collegium Japan
by artist: Masaaki Suzuki
in album: The 99 Most Essential Choral Masterpieces
  type: MusicAlbum
  date published: 2012-09-12
popularity: 10
genre: classical
genre: classical-piano
isrc code: SEAER0702130
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d0872b8144ebb13731e67517192ecb86811992b914226480a18a7beabda038. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAER0702130.
  date published: 2026-07-02T03:55:08Z
audio: Mass in B Minor, BWV 232: XXV. Osanna in excelsis
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Energy
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  additional property: Valence (Positivity)
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Mass in B Minor, BWV 232: XXVII. Dona nobis pacem
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duration: PT3M45S
duration ms: 225902
explicit: false
by artist: Johann Sebastian Bach
by artist: Bach Collegium Japan Chorus
by artist: Bach Collegium Japan
by artist: Masaaki Suzuki
in album: The 99 Most Essential Choral Masterpieces
  type: MusicAlbum
  date published: 2012-09-12
popularity: 8
genre: classical
genre: classical-piano
isrc code: SEAER0702150
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8645ddf9fa403ce370061945127df827aff34f8e16a3fbd86d28dcc15f1ebd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAER0702150.
  date published: 2026-07-02T03:55:08Z
audio: Mass in B Minor, BWV 232: XXVII. Dona nobis pacem
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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Busoni, F.: Turandot [Opera]
type: MusicAlbum
date published: 1993-01-01

Beethoven: Missa solemnis, Op. 123
type: MusicAlbum
date published: 2018-01-30

Dvorák: Svatební košile (The Spectre's Bride), Op. 69, B. 135
type: MusicAlbum
date published: 2016-01-01

MOZART, W.A.: Opera Arias
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Egmont, Op. 84: Overture in F Minor
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Romance No. 2 in F Major for Violin and Orchestra, Op. 50
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subject of: OpenTimestamps Proof of Existence
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Concerto in D Major for Violin and Orchestra, Op. 61: II. Larghetto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
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Sonata No. 23 in F Minor for Piano, Op. 57, "Appassionata": I. Allegro assai
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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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Symphony No. 3 in E-Flat Major, Op. 55, "Eroica": II. Marcia funébre: Adagio assai
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  date published: 2026-07-08T03:22:41Z
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Sonata No. 17 in D Minor for Piano, Op. 31/2 (The Tempest): III. Allegretto
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  date published: 2026-07-02T03:55:08Z
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Sonata No. 3 in A Major for Cello and Piano, Op. 69: I. Allegro ma non tanto
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  date published: 2026-07-08T03:22:41Z
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Concerto in D Major for Violin and Orchestra, Op. 61: III. Rondo: Allegro
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495882906de86d403de12d36964fb2c705d2a216bcfda350712e046a50d255d2. 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/SEWDL0709803.
  date published: 2026-07-02T03:30:09Z
audio: Concerto in D Major for Violin and Orchestra, Op. 61: III. Rondo: Allegro
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Missa Solemnis in D Major, Op. 123: III. Credo
type: MusicRecording
duration: PT19M6S
duration ms: 1146000
explicit: false
by artist: Marjana Lipovsek
by artist: Phyllis Bryn-Julson
by artist: SWR Symphony Orchestra
by artist: Kurt Rydl
by artist: Josef Protschka
by artist: Wolfgang Hock
in album: Best - Beethoven
  type: MusicAlbum
  date published: 2012-04-01
popularity: 1
genre: classical-contralto
isrc code: SEWDL0505703
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
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0505703
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c071e7dac1f07e5015e6d86909d7b89f0930efb25508ddb2bfd99ac0baa2b7c. 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/SEWDL0505703.
  date published: 2026-07-08T03:53:27Z
audio: Missa Solemnis in D Major, Op. 123: III. Credo
  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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    value: 0.468
  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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Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
type: MusicAlbum
date published: 1982
track: Mozart: Requiem in D Minor, K. 626: IV. Tuba mirum
  type: MusicRecording
  duration: PT3M43S
  duration ms: 223466
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Rachel Yakar, Ortrun Wenkel, Kurt Equiluz, Robert Holl, Nikolaus Harnoncourt & Concentus musicus Wien
  by artist: Kurt Equiluz
  by artist: Ortrun Wenkel
  by artist: Rachel Yakar
  by artist: Robert Holl
  by artist: Nikolaus Harnoncourt
  by artist: Concentus Musicus Wien
  in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
    type: MusicAlbum
    date published: 1982
  genre: classical
  genre: classical-era
  isrc code: DEA808200103
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-19T23:57:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x637abff557ca8a079aec13ef8bf97786ed0c88d62f7cf21b5dafd5c83d1a23b9
  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/DEA808200103
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637abff557ca8a079aec13ef8bf97786ed0c88d62f7cf21b5dafd5c83d1a23b9. 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/DEA808200103.
    date published: 2026-07-08T03:20:19Z
  audio: Mozart: Requiem in D Minor, K. 626: IV. Tuba mirum
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 110.077
    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: 0.209
    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
      value: 0.053
    additional property: Acousticness
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      value: 0.993
    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
      type: PropertyValue
      value: -27.893
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Mozart: Requiem in D Minor, K. 626: V. Rex tremendae
  type: MusicRecording
  duration: PT1M57S
  duration ms: 117493
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Rachel Yakar, Ortrun Wenkel, Kurt Equiluz, Robert Holl, Nikolaus Harnoncourt & Concentus musicus Wien
  by artist: Vienna State Opera Chorus
  by artist: Nikolaus Harnoncourt
  by artist: Concentus Musicus Wien
  in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
    type: MusicAlbum
    date published: 1982
  genre: classical
  genre: classical-era
  isrc code: DEA808200104
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T14:10:51+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbdc935c237e92cc090e9e9273131aa64e199fef5063f743ea9524a89b8d110c5
  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/DEA808200104
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc935c237e92cc090e9e9273131aa64e199fef5063f743ea9524a89b8d110c5. 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/DEA808200104.
    date published: 2026-07-02T05:09:12Z
  audio: Mozart: Requiem in D Minor, K. 626: V. Rex tremendae
    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
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    additional property: Instrumentalness
      type: PropertyValue
      value: 0.292
    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.467
    additional property: Key Name
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    additional property: Mode Name
      type: PropertyValue
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track: Mozart: Requiem in D Minor, K. 626: VII. Confutatis
  type: MusicRecording
  duration: PT2M39S
  duration ms: 159493
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Nikolaus Harnoncourt
  by artist: Vienna State Opera Chorus
  by artist: Concentus Musicus Wien
  in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
    type: MusicAlbum
    date published: 1982
  genre: classical
  genre: classical-era
  isrc code: DEA808200106
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Mozart: Requiem in D Minor, K. 626: VII. Confutatis
track: Mozart: Requiem in D Minor, K. 626: VIII. Lacrimosa
track: Mozart: Requiem in D Minor, K. 626: IX. Domine Jesu Christe
track: Mozart: Requiem in D Minor, K. 626: X. Hostias
track: Mozart: Requiem in D Minor, K. 626: XI. Sanctus
track: Mozart: Requiem in D Minor, K. 626: XIV. Communio
track: Mozart: Mass in C Major, K. 317, "Coronation": Kyrie
track: Mozart: Mass in C Major, K. 317, "Coronation": Credo
track: Mozart: Mass in C Major, K. 317, "Coronation": Sanctus
track: Mozart: Mass in C Major, K. 317, "Coronation": Benedictus
track: Mozart: Mass in C Major, K. 317 "Coronation": II. Gloria

CopyrightID
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CopyrightStatus
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value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-10T02:39:30+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xf584b7cf768a4a587fca9de25f5bd20fd333f454ae064f525f033d2ab511341a

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 957120

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957120

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA808200106

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:22:41Z

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 0xf584b7cf768a4a587fca9de25f5bd20fd333f454ae064f525f033d2ab511341a. 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/DEA808200106.
date published: 2026-07-08T03:22:41Z

Mozart: Requiem in D Minor, K. 626: VII. Confutatis
type: AudioObject
additional property: Tempo (BPM)
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  value: 129.044
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: 0.217
additional property: Energy
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  value: 0.019
additional property: Speechiness
  type: PropertyValue
  value: 0.041
additional property: Acousticness
  type: PropertyValue
  value: 0.991
additional property: Instrumentalness
  type: PropertyValue
  value: 0.124
additional property: Liveness
  type: PropertyValue
  value: 0.179
additional property: Valence (Positivity)
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  value: 0.039
additional property: Loudness (dB)
  type: PropertyValue
  value: -26.322
additional property: Key Name
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additional property: Mode Name
  type: PropertyValue
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Mozart: Requiem in D Minor, K. 626: VIII. Lacrimosa
type: MusicRecording
duration: PT3M1S
duration ms: 181400
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Nikolaus Harnoncourt
by artist: Vienna State Opera Chorus
by artist: Concentus Musicus Wien
in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
  type: MusicAlbum
  date published: 1982
genre: classical
genre: classical-era
isrc code: DEA808200101
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T15:53:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe2e8a8638d59d8d2a5b78a3eeb5abdd6e33cf31cc66e251937ba633a66928d89
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957084
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957084
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA808200101
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T20:41:57Z
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 0xe2e8a8638d59d8d2a5b78a3eeb5abdd6e33cf31cc66e251937ba633a66928d89. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/DEA808200101.
  date published: 2026-07-07T20:41:57Z
audio: Mozart: Requiem in D Minor, K. 626: VIII. Lacrimosa
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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    value: 0.991
  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.376
  additional property: Key Name
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Mozart: Requiem in D Minor, K. 626: IX. Domine Jesu Christe
type: MusicRecording
duration: PT3M47S
duration ms: 227466
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Rachel Yakar, Ortrun Wenkel, Kurt Equiluz, Robert Holl, Nikolaus Harnoncourt & Concentus musicus Wien
by artist: Vienna State Opera Chorus
by artist: Kurt Equiluz
by artist: Ortrun Wenkel
by artist: Rachel Yakar
by artist: Robert Holl
by artist: Nikolaus Harnoncourt
by artist: Concentus Musicus Wien
in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
  type: MusicAlbum
  date published: 1982
genre: classical
genre: classical-era
isrc code: DEA808204601
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T04:01:30+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xedf3cdf56984eec6b28b565f0be3881ff06252a7baf104439cb4a03850fa625e
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/DEA808204601
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf3cdf56984eec6b28b565f0be3881ff06252a7baf104439cb4a03850fa625e. 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/DEA808204601.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Requiem in D Minor, K. 626: IX. Domine Jesu Christe
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.658
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.222
  additional property: Energy
    type: PropertyValue
    value: 0.155
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.153
  additional property: Liveness
    type: PropertyValue
    value: 0.118
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.162
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.896
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mozart: Requiem in D Minor, K. 626: X. Hostias
type: MusicRecording
duration: PT3M6S
duration ms: 186800
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Rachel Yakar, Ortrun Wenkel, Kurt Equiluz, Robert Holl, Nikolaus Harnoncourt & Concentus musicus Wien
by artist: Nikolaus Harnoncourt
by artist: Concentus Musicus Wien
in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
  type: MusicAlbum
  date published: 1982
genre: classical
genre: classical-era
isrc code: DEA808204602
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T03:57:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0e1a02d8bc92e97daf4d3da06b0f7918cfaded99026566f9d3d895c9e56a2305
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA808204602
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 0x0e1a02d8bc92e97daf4d3da06b0f7918cfaded99026566f9d3d895c9e56a2305. 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/DEA808204602.
  date published: 2026-07-08T08:56:20Z
audio: Mozart: Requiem in D Minor, K. 626: X. Hostias
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.139
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.268
  additional property: Energy
    type: PropertyValue
    value: 0.116
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.713
  additional property: Liveness
    type: PropertyValue
    value: 0.093
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.07
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.402
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mozart: Requiem in D Minor, K. 626: XI. Sanctus
type: MusicRecording
duration: PT1M29S
duration ms: 89000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Rachel Yakar, Ortrun Wenkel, Kurt Equiluz, Robert Holl, Nikolaus Harnoncourt & Concentus musicus Wien
by artist: Vienna State Opera Chorus
by artist: Nikolaus Harnoncourt
by artist: Concentus Musicus Wien
in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
  type: MusicAlbum
  date published: 1982
genre: classical
genre: classical-era
isrc code: DEA808204700
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T21:16:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x69c3b04dd8687a3f9349002ae4fa1db4cb0d7213e95ee2370653d0ea290cfda6
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/DEA808204700
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c3b04dd8687a3f9349002ae4fa1db4cb0d7213e95ee2370653d0ea290cfda6. 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/DEA808204700.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Requiem in D Minor, K. 626: XI. Sanctus
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 88.012
  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: 0.26
  additional property: Energy
    type: PropertyValue
    value: 0.149
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.226
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.221
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.661
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Requiem in D Minor, K. 626: XIV. Communio
type: MusicRecording
duration: PT5M20S
duration ms: 320400
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Rachel Yakar, Ortrun Wenkel, Kurt Equiluz, Robert Holl, Nikolaus Harnoncourt & Concentus musicus Wien
by artist: Vienna State Opera Chorus
by artist: Rachel Yakar
by artist: Nikolaus Harnoncourt
by artist: Concentus Musicus Wien
in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
  type: MusicAlbum
  date published: 1982
genre: classical
genre: classical-era
isrc code: DEA808205000
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T21:13:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x69153b5aa8348fd40f85b2102e2b966a2f34f3c362af90c57129ffd0f5d4fa63
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/DEA808205000
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69153b5aa8348fd40f85b2102e2b966a2f34f3c362af90c57129ffd0f5d4fa63. 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/DEA808205000.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Requiem in D Minor, K. 626: XIV. Communio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.825
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.156
  additional property: Energy
    type: PropertyValue
    value: 0.203
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.572
  additional property: Liveness
    type: PropertyValue
    value: 0.104
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.146
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.995
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mozart: Mass in C Major, K. 317, "Coronation": Kyrie
type: MusicRecording
duration: PT3M6S
duration ms: 186266
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Nikolaus Harnoncourt
by artist: Concentus Musicus Wien
in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
  type: MusicAlbum
  date published: 1982
genre: classical
genre: classical-era
isrc code: DEA808700301
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:10:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x95b59151c026224efc37e6bf8de712f786c466386dde54c4dcf3b14c5254a9d3
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/DEA808700301
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 0x95b59151c026224efc37e6bf8de712f786c466386dde54c4dcf3b14c5254a9d3. 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/DEA808700301.
  date published: 2026-07-08T03:22:41Z
audio: Mozart: Mass in C Major, K. 317, "Coronation": Kyrie
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.725
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.233
  additional property: Energy
    type: PropertyValue
    value: 0.052
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.98
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.048
  additional property: Liveness
    type: PropertyValue
    value: 0.383
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.68
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Mass in C Major, K. 317, "Coronation": Credo
type: MusicRecording
duration: PT6M18S
duration ms: 378333
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Nikolaus Harnoncourt
by artist: Concentus Musicus Wien
in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
  type: MusicAlbum
  date published: 1982
genre: classical
genre: classical-era
isrc code: DEA808700303
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:21:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3b242cf64a0333031b321d27902f64956652a0ad38dfea9b29822f57c7f7e88a
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/DEA808700303
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b242cf64a0333031b321d27902f64956652a0ad38dfea9b29822f57c7f7e88a. 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/DEA808700303.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Mass in C Major, K. 317, "Coronation": Credo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.123
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.282
  additional property: Energy
    type: PropertyValue
    value: 0.193
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.686
  additional property: Liveness
    type: PropertyValue
    value: 0.321
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.181
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.73
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Mass in C Major, K. 317, "Coronation": Sanctus
type: MusicRecording
duration: PT1M51S
duration ms: 111533
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Nikolaus Harnoncourt
by artist: Concentus Musicus Wien
in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
  type: MusicAlbum
  date published: 1982
genre: classical
genre: classical-era
isrc code: DEA808700304
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:05:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd2a1f94043d677bb0f849b4decd73da352aff7a7b456eef37c27677591c09f50
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA808700304
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 0xd2a1f94043d677bb0f849b4decd73da352aff7a7b456eef37c27677591c09f50. 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/DEA808700304.
  date published: 2026-07-08T08:56:20Z
audio: Mozart: Mass in C Major, K. 317, "Coronation": Sanctus
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.115
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.215
  additional property: Energy
    type: PropertyValue
    value: 0.187
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.989
  additional property: Liveness
    type: PropertyValue
    value: 0.426
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.253
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.566
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Mass in C Major, K. 317, "Coronation": Benedictus
type: MusicRecording
duration: PT3M33S
duration ms: 213040
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Nikolaus Harnoncourt
by artist: Concentus Musicus Wien
in album: Mozart : Requiem & Mass No.16, 'Coronation' (Apex)
  type: MusicAlbum
  date published: 1982
genre: classical
genre: classical-era
isrc code: DEA808700305
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:46:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3077b2e82c06baa89aea5b12dc220b214ceb4576a37fb9e15dadc9f7f7d343e4
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/DEA808700305
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
subject of: OpenTimestamps Proof of Existence
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track: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto
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Romance No. 2 in F Major for Violin and Orchestra, Op. 50
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by artist: Alexei Bruni
by artist: State Symphony Capella of Russia
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popularity: 2
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Romance No. 2 in F Major for Violin and Orchestra, Op. 50
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Symphony No. 2 in D Major, Op. 36: II. Larghetto
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duration: PT12M38S
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by artist: Juozas Domarkas
by artist: Moscow Radio Symphony Orchestra
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Symphony No. 2 in D Major, Op. 36: II. Larghetto
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Symphony No. 3 in E-Flat Major, Op. 55 "Eroica": I. Allegro con brio
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by artist: Woldemar Nelsson
by artist: SWR Symphony Orchestra
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Symphony No. 3 in E-Flat Major, Op. 55 "Eroica": I. Allegro con brio
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Symphony No. 3 in E-Flat Major, Op. 55 "Eroica": II. Marcia funébre (Adagio assai)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 3 in E-Flat Major, Op. 55 "Eroica": II. Marcia funébre (Adagio assai)
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Missa Solemnis in D Major, Op. 123: III. Credo
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duration ms: 1146000
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by artist: Michael Gielen
by artist: Josef Protschka
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by artist: Phyllis Bryn-Julson
by artist: Wolfgang Hock
by artist: SWR Symphony Orchestra
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popularity: 2
genre: classical
genre: classical-piano
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Missa Solemnis in D Major, Op. 123: III. Credo
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Symphony No. 7 in A Major, Op. 92: I. Poco sostenuto - Vivace
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duration: PT12M31S
duration ms: 751893
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by artist: Vladimir Fedoseyev
by artist: Moscow Radio Symphony Orchestra
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popularity: 2
genre: classical
genre: classical-piano
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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: Symphony No. 7 in A Major, Op. 92: I. Poco sostenuto - Vivace
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10 Variations on "Ich bin der Schneider Kakadu", Op. 121a
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by artist: Conrad von der Goltz
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by artist: Kirsti Hjort
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popularity: 2
genre: classical
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subject of: OpenTimestamps Proof of Existence
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Consecration of the House, Op. 124: Overture
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Romance for Violin and Orchestra in G Major, Op. 40
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Beethoven Hits
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track: Fidelio, Op. 72: Overture
track: Symphony No. 9 in D Minor, Op. 125 "Choral": II. Scherzo (Molto vivace)
track: Piano Sonata No. 17 in D Minor, Op. 31 No. 2 "The Tempest": III. Allegretto

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Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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Fidelio, Op. 72: Overture
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Symphony No. 9 in D Minor, Op. 125 "Choral": II. Scherzo (Molto vivace)
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 9 in D Minor, Op. 125 "Choral": II. Scherzo (Molto vivace)
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Piano Sonata No. 17 in D Minor, Op. 31 No. 2 "The Tempest": III. Allegretto
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by artist: Henrik Måwe
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genre: classical-piano
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Piano Sonata No. 17 in D Minor, Op. 31 No. 2 "The Tempest": III. Allegretto
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The Essentials: Mozart
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  genre: classical
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  additional property: OTSVerificationAPI
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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
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
  audio: Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": I. Allegro
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track: Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
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  by artist: Bavarian Radio Symphony Orchestra
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  popularity: 2
  genre: classical
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
  audio: Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
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track: Serenade No. 10 in B-Flat Major, K. 361, "Gran Partita": IV. Adagio
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  by artist: German Wind Soloists
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  popularity: 6
  genre: classical
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  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
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track: Serenade No. 6 in D Major, K. 239, "Serenata Notturna": I. Marcia: Maestoso
track: Così fan tutte, K. 588: Overture
track: Idomeneo, re di Creta, K. 366: Overture

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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48ec46e9c076268ead30b0055dfc1a811cdad1c6e9d68325250754f1b2ec694. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/USB8U1601070.
date published: 2026-07-07T13:25:45Z

Serenade No. 10 in B-Flat Major, K. 361, "Gran Partita": IV. Adagio
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additional property: Mode (Major/Minor)
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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: Valence (Positivity)
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additional property: Loudness (dB)
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Serenade No. 6 in D Major, K. 239, "Serenata Notturna": I. Marcia: Maestoso
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duration: PT4M14S
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by artist: Swedish Chamber Orchestra
by artist: Petter Sundkvist
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genre: classical
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Serenade No. 6 in D Major, K. 239, "Serenata Notturna": I. Marcia: Maestoso
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Così fan tutte, K. 588: Overture
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by artist: Capella Istropolitana
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Così fan tutte, K. 588: Overture
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track: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": I. Allegro
track: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto
track: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": III. Rondo (Allegro)
track: Piano Sonata No. 12 in A-Flat Major, Op. 26 "Funeral March": I. Andante con variazione
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track: Missa Solemnis in D Major, Op. 123: III. Credo
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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 0x998dfd12fb08df920da6c02f0bd4827b49ab6cad28efc09e4400e79479ed5c3d. 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/SEWDL6018032.
date published: 2026-07-08T03:20:19Z

Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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)
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additional property: Key Name
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additional property: Mode Name
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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": I. Allegro
type: MusicRecording
duration: PT19M11S
duration ms: 1151626
explicit: false
by artist: Ludwig van Beethoven
by artist: Richard Hickox
by artist: Cristina Ortiz
by artist: City of London Sinfonia
in album: Beethoven Light Classical
  type: MusicAlbum
  date published: 2020-11-01
popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL0558701
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/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0558701
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21afa596c85bdc7114a5d31d9774f005a98e312f4af4a21d20e678aa3fd883fc. 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/SEWDL0558701.
  date published: 2026-07-08T03:53:27Z
audio: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": I. Allegro
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  additional property: Valence (Positivity)
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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto
type: MusicRecording
duration: PT8M10S
duration ms: 490440
explicit: false
by artist: Ludwig van Beethoven
by artist: Richard Hickox
by artist: Cristina Ortiz
by artist: City of London Sinfonia
in album: Beethoven Light Classical
  type: MusicAlbum
  date published: 2020-11-01
popularity: 2
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL0558702
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
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0558702
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4399ba161c83aad0b2fe1b969b8e40e157d90623b33d5d9bdd13f1d89796e257. 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/SEWDL0558702.
  date published: 2026-07-08T03:20:19Z
audio: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": II. Adagio un poco moto
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 101.744
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: 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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Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": III. Rondo (Allegro)
type: MusicRecording
duration: PT10M5S
duration ms: 605600
explicit: false
by artist: Ludwig van Beethoven
by artist: Richard Hickox
by artist: Cristina Ortiz
by artist: City of London Sinfonia
in album: Beethoven Light Classical
  type: MusicAlbum
  date published: 2020-11-01
popularity: 1
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL0558703
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-07T16:16:34+00:00
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/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0558703
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4bea8e69d9ce482198959daa33ef9a316f1ebb10c49757a60d19673b55ae63. 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/SEWDL0558703.
  date published: 2026-07-08T03:53:27Z
audio: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor": III. Rondo (Allegro)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    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
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  additional property: Instrumentalness
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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: -22.493
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
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Piano Sonata No. 12 in A-Flat Major, Op. 26 "Funeral March": I. Andante con variazione
type: MusicRecording
duration: PT7M55S
duration ms: 475000
explicit: false
by artist: Ludwig van Beethoven
by artist: Roland Pöntinen
in album: Beethoven Light Classical
  type: MusicAlbum
  date published: 2020-11-01
popularity: 6
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEAED8753090
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T10:48:12+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x612a4b661ec4913592d42339884e3b05f1c5009e89d7b05e9a5afdf6cb30708c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAED8753090
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05Z
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 0x612a4b661ec4913592d42339884e3b05f1c5009e89d7b05e9a5afdf6cb30708c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/SEAED8753090.
  date published: 2026-07-07T18:39:05Z
audio: Piano Sonata No. 12 in A-Flat Major, Op. 26 "Funeral March": I. Andante con variazione
  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
    type: PropertyValue
    value: 0.369
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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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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Violin Sonata No. 10 in G Major, Op. 96: I. Allegro moderato
type: MusicRecording
duration: PT11M44S
duration ms: 704266
explicit: false
by artist: Ludwig van Beethoven
by artist: Carlos Moerdijk
by artist: Emmy Verhey
in album: Beethoven Light Classical
  type: MusicAlbum
  date published: 2020-11-01
popularity: 1
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL0726904
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:30:46+00:00
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
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0726904
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 0x669cd8d0988352d54b2222649c2a30f16338d4a046f29a2f79f543f9cea4201e. 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/SEWDL0726904.
  date published: 2026-07-08T03:22:41Z
audio: Violin Sonata No. 10 in G Major, Op. 96: I. Allegro moderato
  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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    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
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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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Violin Sonata No. 1 in D Major, Op. 12: II. Tema con variazioni (Andante con moto)
type: MusicRecording
duration: PT7M51S
duration ms: 471173
explicit: false
by artist: Ludwig van Beethoven
by artist: Carlos Moerdijk
by artist: Emmy Verhey
in album: Beethoven Light Classical
  type: MusicAlbum
  date published: 2020-11-01
popularity: 0
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL0726802
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
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0726802
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 0xebf5f68adf85429cc3b049ffbb65cb66b077c2b281e3e6b8e8dbf27342eb6aac. 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/SEWDL0726802.
  date published: 2026-07-08T08:56:20Z
audio: Violin Sonata No. 1 in D Major, Op. 12: II. Tema con variazioni (Andante con moto)
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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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    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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Missa Solemnis in D Major, Op. 123: III. Credo
type: MusicRecording
duration: PT19M6S
duration ms: 1146000
explicit: false
by artist: Ludwig van Beethoven
by artist: Michael Gielen
by artist: Josef Protschka
by artist: Kurt Rydl
by artist: Marjana Lipovsek
by artist: Phyllis Bryn-Julson
by artist: Wolfgang Hock
by artist: SWR Symphony Orchestra
in album: Beethoven Light Classical
  type: MusicAlbum
  date published: 2020-11-01
popularity: 0
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL0505703
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c071e7dac1f07e5015e6d86909d7b89f0930efb25508ddb2bfd99ac0baa2b7c. 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/SEWDL0505703.
  date published: 2026-07-08T03:20:19Z
audio: Missa Solemnis in D Major, Op. 123: III. Credo
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Symphony No. 2 in D Major, Op. 36: II. Larghetto
type: MusicRecording
duration: PT12M38S
duration ms: 758906
explicit: false
by artist: Ludwig van Beethoven
by artist: Juozas Domarkas
by artist: Moscow Radio Symphony Orchestra
in album: Beethoven Light Classical
  type: MusicAlbum
  date published: 2020-11-01
popularity: 1
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL6019111
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e82c21c7157a0fa1dda6577f6f23ebc613157f36168a82d0158a612aeb70c0. 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/SEWDL6019111.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 2 in D Major, Op. 36: II. Larghetto
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Romance for Violin and Orchestra in F Major, Op. 50
type: MusicRecording
duration: PT8M41S
duration ms: 521039
explicit: false
by artist: Ludwig van Beethoven
by artist: Ilmar Lapinsch
by artist: Alexei Bruni
by artist: State Symphony Capella of Russia
in album: Beethoven Light Classical
  type: MusicAlbum
  date published: 2020-11-01
popularity: 1
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: SEWDL9418014
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
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd49fa985d3d1acaca352858b9e0e8fe8e37eaa5ddec06a2bb4026b07ce3118f. 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/SEWDL9418014.
  date published: 2026-07-08T03:20:19Z
audio: Romance for Violin and Orchestra in F Major, Op. 50
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Beethoven Works 101
type: MusicAlbum
date published: 2020-02-01
track: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": III. Rondo: Allegro
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  duration: PT4M23S
  duration ms: 263613
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  by artist: Ludwig van Beethoven
  by artist: Freddy Kempf
  in album: Beethoven Works 101
    type: MusicAlbum
    date published: 2020-02-01
  popularity: 3
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: SEAEO0460030
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  additional property: CopyrightStatus
    type: PropertyValue
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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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4489f8441c3610a3ab5134a6471db51c9a49343430d93437c6a4f491fa22390. 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/SEAEO0460030.
    date published: 2026-07-08T03:22:41Z
  audio: Piano Sonata No. 8 in C Minor, Op. 13 "Pathétique": III. Rondo: Allegro
    type: AudioObject
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track: Romance for Violin and Orchestra in G Major, Op. 40
  type: MusicRecording
  duration: PT8M8S
  duration ms: 488200
  explicit: false
  by artist: Ludwig van Beethoven
  by artist: Ilmar Lapinsch
  by artist: Alexei Bruni
  by artist: State Symphony Capella of Russia
  in album: Beethoven Works 101
    type: MusicAlbum
    date published: 2020-02-01
  popularity: 10
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: SEWDL9418013
  additional property: CopyrightID
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    type: PropertyValue
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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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbdc90103cda509c619ecf63304d46221729d350d7152b60c4db457f90a287ec. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL9418013.
    date published: 2026-07-02T03:55:08Z
  audio: Romance for Violin and Orchestra in G Major, Op. 40
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
      type: PropertyValue
      value: 0.082
    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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Schubert: Fierrabras
type: MusicAlbum
date published: 1990-01-01
track: Fierrabras, D. 796: Overture
  type: MusicRecording
  duration: PT8M47S
  duration ms: 527213
  explicit: false
  by artist: Franz Schubert
  by artist: Chamber Orchestra of Europe
  by artist: Claudio Abbado
  in album: Schubert: Fierrabras
    type: MusicAlbum
    date published: 1990-01-01
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: DEF058831701
  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/0x433354618c47f8f871151deeda9b9bf0f9d399d31c2fa621adb614aac60cb9ee
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    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058831701
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433354618c47f8f871151deeda9b9bf0f9d399d31c2fa621adb614aac60cb9ee. 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/DEF058831701.
    date published: 2026-07-08T03:53:27Z
  audio: Fierrabras, D. 796: 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)
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    additional property: Key Name
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track: Fierrabras, D. 796, Act I: No. 1, Introduction. Der runde Silberfaden
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  duration: PT6M6S
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  by artist: Franz Schubert
  by artist: Karita Mattila
  by artist: Arnold Schoenberg Chor
  by artist: Erwin Ortner
  by artist: Chamber Orchestra of Europe
  by artist: Claudio Abbado
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  genre: classical
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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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-07-08T03:53:27Z
  audio: Fierrabras, D. 796, Act I: No. 1, Introduction. Der runde Silberfaden
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    additional property: Danceability
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    additional property: Valence (Positivity)
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track: Fierrabras, D. 796, Act I: No. 4d, Ensemble: Der Landestöchter fromme Pflichten

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Nikolaus Harnoncourt Conducts Mozart
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track: Ariadne auf Naxos, Op. 60 / Opera: "Großmächtige Prinzessin"
track: Ariadne auf Naxos, Op. 60 / Opera: "Ein schönes Wunder!"
track: Ariadne auf Naxos, Op. 60 / Prologue: "Sein wir wieder gut" - "Musik ist eine heilige Kunst"
track: Ariadne auf Naxos, Op. 60 / Opera: Overture
track: Ariadne auf Naxos, Op. 60 / Opera: Das waren Zauberworte!
track: Ariadne auf Naxos, Op. 60 / Opera: "Die Dame gibt mit trüben Sinn" - "Wie sie sich schwingen"
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OpenTimestamps Proof of Existence
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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/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058630315
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e86b44febb5c6114648ea1725b55d667e92e58b89bd2f499649dbc04fe14a58. 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/DEF058630315.
  date published: 2026-07-08T03:20:19Z
audio: Ariadne auf Naxos, Op. 60 / Opera: "Ein schönes Wunder!"
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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Ariadne auf Naxos, Op. 60 / Prologue: "Sein wir wieder gut" - "Musik ist eine heilige Kunst"
type: MusicRecording
duration: PT3M28S
duration ms: 208426
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by artist: Richard Strauss
by artist: Agnes Baltsa
by artist: Hermann Prey
by artist: Wiener Philharmoniker
by artist: James Levine
in album: Richard Strauss: Ariadne auf Naxos
  type: MusicAlbum
  date published: 1986-01-01
genre: classical
genre: opera
genre: orchestra
isrc code: DEF058630306
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
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058630306
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a9aa312035e348b3c9da2155b0d8bf162bfe19f51e0891b7a213133253cdec. 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/DEF058630306.
  date published: 2026-07-08T03:22:41Z
audio: Ariadne auf Naxos, Op. 60 / Prologue: "Sein wir wieder gut" - "Musik ist eine heilige Kunst"
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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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Ariadne auf Naxos, Op. 60 / Opera: Overture
type: MusicRecording
duration: PT3M56S
duration ms: 236266
explicit: false
by artist: Richard Strauss
by artist: Wiener Philharmoniker
by artist: James Levine
in album: Richard Strauss: Ariadne auf Naxos
  type: MusicAlbum
  date published: 1986-01-01
genre: classical
genre: opera
genre: orchestra
isrc code: DEF058630307
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
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058630307
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf596d42c4658e55e49d7e22d1cec8b77402b3bcc0636a39009fbed75fe89bc64. 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/DEF058630307.
  date published: 2026-07-08T08:56:20Z
audio: Ariadne auf Naxos, Op. 60 / Opera: Overture
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  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)
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  additional property: Key Name
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  additional property: Mode Name
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Ariadne auf Naxos, Op. 60 / Opera: Das waren Zauberworte!
type: MusicRecording
duration: PT11M50S
duration ms: 710373
explicit: false
by artist: Richard Strauss
by artist: Helga Muller-Molinari
by artist: Barbara Bonney
by artist: Dawn Upshaw
by artist: Anna Tomowa-Sintow
by artist: Gary Lakes
by artist: Kathleen Battle
by artist: Wiener Philharmoniker
by artist: James Levine
in album: Richard Strauss: Ariadne auf Naxos
  type: MusicAlbum
  date published: 1986-01-01
genre: classical
genre: opera
genre: orchestra
isrc code: DEF058630317
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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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/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058630317
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 0xed0abe0fd46ae0ab4fac40b4a6317cd8ba34ad70be5baba4b7aee69fc00fab39. 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/DEF058630317.
  date published: 2026-07-08T03:22:41Z
audio: Ariadne auf Naxos, Op. 60 / Opera: Das waren Zauberworte!
  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
    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
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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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Beethoven 250
type: MusicAlbum
date published: 2020-12-12
track: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": III. Presto agitato
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  duration: PT7M8S
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  explicit: false
  by artist: Ludwig van Beethoven
  by artist: Freddy Kempf
  in album: Beethoven 250
    type: MusicAlbum
    date published: 2020-12-12
  popularity: 2
  genre: classical
  genre: classical-piano
  genre: chamber-music
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  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
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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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4a66ba7251910ba1b58dec61b42d27f65645826c95350d3077a609e8045a44. 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/SEAEO0460060.
    date published: 2026-07-08T03:53:27Z
  audio: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": III. Presto agitato
    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: String Trio in D Major, Op. 9 No. 2: I. Allegretto
  type: MusicRecording
  duration: PT7M34S
  duration ms: 454040
  explicit: false
  by artist: Ludwig van Beethoven
  by artist: Trio Zimmermann
  in album: Beethoven 250
    type: MusicAlbum
    date published: 2020-12-12
  popularity: 4
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: SEAES1157050
  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: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAES1157050
  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc02bb11159653d4ad11f12cd2cb23795469a659bd211fc9e861282686d3fd2. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/SEAES1157050.
    date published: 2026-07-07T18:39:05Z
  audio: String Trio in D Major, Op. 9 No. 2: I. Allegretto
    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
      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
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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
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track: String Trio in D Major, Op. 9 No. 2: II. Andante quasi Allegretto
  type: MusicRecording
  duration: PT4M40S
  duration ms: 280346
  explicit: false
  by artist: Ludwig van Beethoven
  by artist: Trio Zimmermann
  in album: Beethoven 250
    type: MusicAlbum
    date published: 2020-12-12
  popularity: 4
  genre: classical
  genre: classical-piano
  genre: chamber-music
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: String Trio in D Major, Op. 9 No. 2: II. Andante quasi Allegretto
track: String Trio in C Minor, Op. 9 No. 3: III. Scherzo (Allegro molto e vivace)
track: String Trio in C Minor, Op. 9 No. 3: IV. Finale (Presto)

CopyrightRegisteredAt
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CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0x33fe2ad2ba8b0b0e161499bef37b8782303217daa130dbf0d275772af3351c66

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 957118

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAES1157060

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

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 0x33fe2ad2ba8b0b0e161499bef37b8782303217daa130dbf0d275772af3351c66. 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/SEAES1157060.
date published: 2026-07-08T03:20:19Z

String Trio in D Major, Op. 9 No. 2: II. Andante quasi Allegretto
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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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  value: 0
additional property: Time Signature
  type: PropertyValue
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additional property: Danceability
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  value: 0.367
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String Trio in C Minor, Op. 9 No. 3: III. Scherzo (Allegro molto e vivace)
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by artist: Trio Zimmermann
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genre: classical
genre: classical-piano
genre: chamber-music
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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String Trio in C Minor, Op. 9 No. 3: IV. Finale (Presto)
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by artist: Trio Zimmermann
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popularity: 3
genre: classical
genre: classical-piano
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: String Trio in C Minor, Op. 9 No. 3: IV. Finale (Presto)
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40 Most Beautiful Autumn Classics
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date published: 2008-07-07
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  by artist: Orchestre de Chambre de Lausanne
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
  audio: Fauré: Pavane, Op. 50
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track: Conditor alme siderum (Hymn for the Vespers at Advent)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
  audio: Conditor alme siderum (Hymn for the Vespers at Advent)
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The 99 Most Essential Beethoven Masterpieces (Full Works Edition)
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track: Bagatelle in A Minor, WoO 59, "Für Elise"
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  genre: classical
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
  audio: Bagatelle in A Minor, WoO 59, "Für Elise"
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track: Sonata No. 14 in C-Sharp Minor for Piano, Op. 27:2, "Moonlight": I. Adagio sostenuto
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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  subject of: OpenTimestamps Proof of Existence
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
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Piano Trio in B-Flat Major, Op. 97, "Archduke": I. Allegro moderato
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Symphony No. 5 in C Minor, Op. 67 "Fate": I. Allegro con brio
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Harnoncourt conducts Haydn
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Ballads: Beethoven
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