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album: Schoeck: Penthesilea, Op. 39
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album: Schubert: Mass No. 6
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date published: 2026-07-31T17:29:52Z

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track: Carmen, WD 31 (Highlights Sung in German): Habanera. Ja, die Liebe hat bunte Flügel

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OTSTimestamp
type: PropertyValue
value: 2026-07-31T10:20:10Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004b915f359d5c4d95541434d2757870f19388669f5d230206090085b9b911cd. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD61703111 — a six-check JSON result.
date published: 2026-07-31T10:20:10Z

Carmen, WD 31 (Highlights Sung in German): Diese Menge, im Gedrange!
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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Carmen, WD 31 (Highlights Sung in German): Habanera. Ja, die Liebe hat bunte Flügel
type: MusicRecording
duration: PT4M4S
duration ms: 244613
explicit: false
by artist: Georges Bizet
by artist: Elisabeth Höngen
by artist: Saxon State Opera Chorus, Dresden
by artist: Staatskapelle Dresden
by artist: Karl Böhm
in album: Chorszenen und Konzertchöre in Rundfunkaufnahmen ab 1938
  type: MusicAlbum
  date published: 2018-03-02
popularity: 1
genre: classical
genre: opera
isrc code: DEAD61703114
additional property: CopyrightID
additional property: CopyrightStatus
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  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-31T09:53:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf9d756f56b604565583ad0754228a90a7a0e4f49e53cd1b027e8dab368545ee4
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960387
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD61703114
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T10:06:30Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d756f56b604565583ad0754228a90a7a0e4f49e53cd1b027e8dab368545ee4. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD61703114 — a six-check JSON result.
  date published: 2026-07-31T10:06:30Z
audio: Carmen, WD 31 (Highlights Sung in German): Habanera. Ja, die Liebe hat bunte Flügel
  type: AudioObject
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  additional property: Musical Key
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  additional property: Danceability
    type: PropertyValue
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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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Fiala: De Amicitia
type: MusicAlbum
date published: 2014-09-02

Klenoty ceskych vanoc
type: MusicAlbum
date published: 2012-09-01

Ivo Malec: Epistola & Arc-en-cello
type: MusicAlbum
date published: 2009-01-01

Beethoven: Complete Symphonies Transcribed for Piano by Liszt
type: MusicAlbum
date published: 2022-09-28

Mozart: Sacred Music
type: MusicAlbum
date published: 2012-09-01
track: Regina coeli
  type: MusicRecording
  duration: PT4M7S
  duration ms: 247320
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Simona Saturova
  by artist: Czech Philharmonic Choir, Brno
  by artist: Czech Chamber Soloists, Brno
  by artist: Petr Fiala
  in album: Mozart: Sacred Music
    type: MusicAlbum
    date published: 2012-09-01
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: USB8U1046701
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T22:57:40+00:00
  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x8ffb2028fa2ed1a57c0735a9014507a410ef7282557695e8cd825c3fd36a67bd
  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/USB8U1046701
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ffb2028fa2ed1a57c0735a9014507a410ef7282557695e8cd825c3fd36a67bd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1046701 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Regina coeli
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 106.698
    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
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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
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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: Regina coeli, K. 127: Quia quem meruisti (Soprano)
  type: MusicRecording
  duration: PT9M55S
  duration ms: 595920
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Simona Saturova
  by artist: Czech Philharmonic Choir, Brno
  by artist: Czech Chamber Soloists, Brno
  by artist: Petr Fiala
  in album: Mozart: Sacred Music
    type: MusicAlbum
    date published: 2012-09-01
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: USB8U1046702
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T23:08:18+00:00
  additional property: CopyrightChainExplorerURL
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960327
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1046702
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T00:26:26Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12796fa9b0c1677e374d2bca0307a55c632fc6180785dd21e5d0b4eb0a86aa7b. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1046702 — a six-check JSON result.
    date published: 2026-07-31T00:26:26Z
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    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
      type: PropertyValue
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track: Regina coeli, K. 127: Alleluja (Soprano)
  type: MusicRecording
  duration: PT2M59S
  duration ms: 179826
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Simona Saturova
  by artist: Czech Philharmonic Choir, Brno
  by artist: Czech Chamber Soloists, Brno
  by artist: Petr Fiala
  in album: Mozart: Sacred Music
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: USB8U1046703
  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: Regina coeli, K. 127: Alleluja (Soprano)
track: Vesperae solennes de confessore, K. 339: Laudate Dominum
track: Te Deum, K. 141
track: Exsultate, jubilate
track: Exsultate jubilate, K. 165 *: Recitativo: Fulgat amica dies - (Aria): Tu virginum corona
track: Exsultate jubilate, K. 165 *: Allelujah
track: Ave verum corpus, K. 618
track: Regina coeli laetare (Chorus)
track: Regina coeli, K. 108: Quia quem meruisti portare (Soprano, Chorus)
track: Regina coeli, K. 108: Ora pro nobis Deum (Soprano)
track: Regina coeli, K. 108: Alleluja (Soprano, Chorus)

Petr Fiala
type: MusicGroup

Mozart: Sacred Music
type: MusicAlbum
date published: 2012-09-01

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-31T11:44:32+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x79b558ca38b0ee824c5d08f675dc30ef96cfdf7d26dc6253df0d21e0cc4811f5

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 960397

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960397

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1046703

OTSTimestamp
type: PropertyValue
value: 2026-07-31T12:24:41Z

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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b558ca38b0ee824c5d08f675dc30ef96cfdf7d26dc6253df0d21e0cc4811f5. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1046703 — a six-check JSON result.
date published: 2026-07-31T12:24:41Z

Regina coeli, K. 127: Alleluja (Soprano)
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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Vesperae solennes de confessore, K. 339: Laudate Dominum
type: MusicRecording
duration: PT5M3S
duration ms: 303040
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Simona Saturova
by artist: Czech Philharmonic Choir, Brno
by artist: Czech Chamber Soloists, Brno
by artist: Petr Fiala
in album: Mozart: Sacred Music
  type: MusicAlbum
  date published: 2012-09-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1046704
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:24:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x71a55a79552e80740c58684bd6a8a8bc83beb03f812dc2de909b0427965fac97
additional property: OTSHash
additional property: OTSBitcoinBlock
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  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/USB8U1046704
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a55a79552e80740c58684bd6a8a8bc83beb03f812dc2de909b0427965fac97. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1046704 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Vesperae solennes de confessore, K. 339: Laudate Dominum
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Te Deum, K. 141
type: MusicRecording
duration: PT7M36S
duration ms: 456360
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Czech Philharmonic Choir, Brno
by artist: Czech Chamber Soloists, Brno
by artist: Petr Fiala
in album: Mozart: Sacred Music
  type: MusicAlbum
  date published: 2012-09-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1046705
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T10:13:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1365deb3c2a6fa9cd5c8c3e80bc5d90eca9711031a5fd17c655a3f2370187d1d
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
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1365deb3c2a6fa9cd5c8c3e80bc5d90eca9711031a5fd17c655a3f2370187d1d. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1046705 — a six-check JSON result.
  date published: 2026-07-29T11:07:37Z
audio: Te Deum, K. 141
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.285
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.311
  additional property: Energy
    type: PropertyValue
    value: 0.25
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.947
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.007
  additional property: Liveness
    type: PropertyValue
    value: 0.226
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.193
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.196
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Exsultate, jubilate
type: MusicRecording
duration: PT4M46S
duration ms: 286066
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Simona Saturova
by artist: Czech Chamber Soloists, Brno
by artist: Petr Fiala
in album: Mozart: Sacred Music
  type: MusicAlbum
  date published: 2012-09-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1046706
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T21:35:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa9931dc357c5c68c76e4f5413873df9f48336926c17b37104f77e48bb1ee347b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960321
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960321
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1046706
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T22:27:30Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9931dc357c5c68c76e4f5413873df9f48336926c17b37104f77e48bb1ee347b. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1046706 — a six-check JSON result.
  date published: 2026-07-30T22:27:30Z
audio: Exsultate, jubilate
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.493
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.387
  additional property: Energy
    type: PropertyValue
    value: 0.122
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.146
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.156
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.349
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Exsultate jubilate, K. 165 *: Recitativo: Fulgat amica dies - (Aria): Tu virginum corona
type: MusicRecording
duration: PT7M58S
duration ms: 478786
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Simona Saturova
by artist: Czech Chamber Soloists, Brno
by artist: Petr Fiala
in album: Mozart: Sacred Music
  type: MusicAlbum
  date published: 2012-09-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1046707
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:12:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x88fb98ca164d565f3f8269dfabe86119491aacd96dc33919351d3c12d54ff23e
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/USB8U1046707
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88fb98ca164d565f3f8269dfabe86119491aacd96dc33919351d3c12d54ff23e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1046707 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Exsultate jubilate, K. 165 *: Recitativo: Fulgat amica dies - (Aria): Tu virginum corona
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 144.142
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.263
  additional property: Energy
    type: PropertyValue
    value: 0.063
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.102
  additional property: Liveness
    type: PropertyValue
    value: 0.105
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.05
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.658
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Exsultate jubilate, K. 165 *: Allelujah
type: MusicRecording
duration: PT2M35S
duration ms: 155666
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Simona Saturova
by artist: Czech Chamber Soloists, Brno
by artist: Petr Fiala
in album: Mozart: Sacred Music
  type: MusicAlbum
  date published: 2012-09-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1046708
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:39:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x526f96c8fe87e1f70601e9c70fd57097e83b0d635d81d6321fb8293183f52e48
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/USB8U1046708
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526f96c8fe87e1f70601e9c70fd57097e83b0d635d81d6321fb8293183f52e48. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1046708 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Exsultate jubilate, K. 165 *: Allelujah
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.213
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.459
  additional property: Energy
    type: PropertyValue
    value: 0.164
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.076
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.227
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.517
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ave verum corpus, K. 618
type: MusicRecording
duration: PT3M11S
duration ms: 191173
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Czech Philharmonic Choir, Brno
by artist: Czech Chamber Soloists, Brno
by artist: Petr Fiala
in album: Mozart: Sacred Music
  type: MusicAlbum
  date published: 2012-09-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1046709
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T10:09:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeab16c04d337d6a3c8046b05c86520fe5c42681b5c9075d33c7488f16bfc7857
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1046709
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab16c04d337d6a3c8046b05c86520fe5c42681b5c9075d33c7488f16bfc7857. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1046709 — a six-check JSON result.
  date published: 2026-07-02T03:55:08Z
audio: Ave verum corpus, K. 618
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 90.918
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.059
  additional property: Energy
    type: PropertyValue
    value: 0.068
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.965
  additional property: Liveness
    type: PropertyValue
    value: 0.114
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.032
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.476
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Regina coeli laetare (Chorus)
type: MusicRecording
duration: PT3M3S
duration ms: 183626
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Simona Saturova
by artist: Czech Philharmonic Choir, Brno
by artist: Czech Chamber Soloists, Brno
by artist: Petr Fiala
in album: Mozart: Sacred Music
  type: MusicAlbum
  date published: 2012-09-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1046710
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T07:55:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xecbe384b031515b29a1e1dc81661f9ae30e37f55a249851591e4ec6e173cb93c
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/USB8U1046710
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbe384b031515b29a1e1dc81661f9ae30e37f55a249851591e4ec6e173cb93c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1046710 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Regina coeli laetare (Chorus)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.476
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.416
  additional property: Energy
    type: PropertyValue
    value: 0.177
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.935
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.155
  additional property: Liveness
    type: PropertyValue
    value: 0.069
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.543
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.759
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Regina coeli, K. 108: Quia quem meruisti portare (Soprano, Chorus)
type: MusicRecording
duration: PT4M31S
duration ms: 271200
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Simona Saturova
by artist: Czech Philharmonic Choir, Brno
by artist: Czech Chamber Soloists, Brno
by artist: Petr Fiala
in album: Mozart: Sacred Music
  type: MusicAlbum
  date published: 2012-09-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1046711
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T10:06:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfc14df489a6043bf97045c791b03b1de3d096ddb2ff4dd75f39032deec2af8de
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960389
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960389
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1046711
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T10:20:10Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc14df489a6043bf97045c791b03b1de3d096ddb2ff4dd75f39032deec2af8de. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1046711 — a six-check JSON result.
  date published: 2026-07-31T10:20:10Z
audio: Regina coeli, K. 108: Quia quem meruisti portare (Soprano, Chorus)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 96.991
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.288
  additional property: Energy
    type: PropertyValue
    value: 0.067
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.086
  additional property: Liveness
    type: PropertyValue
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Regina coeli, K. 108: Ora pro nobis Deum (Soprano)
type: MusicRecording
duration: PT5M27S
duration ms: 327106
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by artist: Wolfgang Amadeus Mozart
by artist: Simona Saturova
by artist: Czech Philharmonic Choir, Brno
by artist: Czech Chamber Soloists, Brno
by artist: Petr Fiala
in album: Mozart: Sacred Music
  type: MusicAlbum
  date published: 2012-09-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T09:25:34Z
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Regina coeli, K. 108: Alleluja (Soprano, Chorus)
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duration: PT2M58S
duration ms: 178226
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by artist: Wolfgang Amadeus Mozart
by artist: Simona Saturova
by artist: Czech Philharmonic Choir, Brno
by artist: Czech Chamber Soloists, Brno
by artist: Petr Fiala
in album: Mozart: Sacred Music
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  date published: 2012-09-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USB8U1046713
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T21:35:24Z
audio: Regina coeli, K. 108: Alleluja (Soprano, Chorus)
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Dvorak: Requiem
type: MusicAlbum
date published: 2012-09-01

Leoš Janáček: Famous Male Choruses & Říkadla (Nursery Rhymes)
type: MusicAlbum
date published: 2014-02-01

Famous Oratorio and Opera Choruses
type: MusicAlbum
date published: 2012-09-01
track: Messa da Requiem: Sanctus
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  by artist: Czech Philharmonic Choir, Brno
  by artist: Czech Chamber Orchestra
  by artist: Petr Fiala
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    date published: 2012-09-01
  genre: classical
  genre: opera
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    type: PropertyValue
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24c14dbb719ee4377c3f3bdf3bb08175f11dcba91558eff2d0d0f19cca06cea. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1046064 — a six-check JSON result.
    date published: 2026-07-31T20:22:46Z
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track: Prodana nevesta (The Bartered Bride), Act I: Proc bychom se netesili
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  duration: PT2M48S
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  by artist: Bedřich Smetana
  by artist: Romana Pávková
  by artist: Thomas Badura
  by artist: Czech Philharmonic Choir, Brno
  by artist: Czech Chamber Orchestra
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    date published: 2012-09-01
  genre: classical
  genre: late-romantic-era
  genre: czech-classical
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-07-02T03:30:09Z
  audio: Prodana nevesta (The Bartered Bride), Act I: Proc bychom se netesili
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Beethoven: The Mahler Re-Orchestrations
type: MusicAlbum
date published: 2024-06-07
track: Symphony No. 5 in C Minor, Op. 67 (Arr. for Orchestra by Gustav Mahler): I. Allegro con brio
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    date published: 2024-06-07
  popularity: 6
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: DEB262400141
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50cb4a70e400642e8051da814cd2ae345da6d792d1124decf194b7bb916661e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB262400141 — a six-check JSON result.
    date published: 2026-07-29T19:35:34Z
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track: Symphony No. 7 in A Major, Op. 92 (Arr. for Orchestra by Gustav Mahler): I. Poco sostenuto - Vivace
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x817513cc89bba874ddd3112bc160afea57d641d15cc245eced0051eac7995648. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB262400150 — a six-check JSON result.
    date published: 2026-07-31T13:50:38Z
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Czech Classical Music
type: MusicAlbum
date published: 2012-09-01
track: Prodana nevesta (The Bartered Bride), Act I: Proc bychom se netesili
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  genre: classical
  genre: late-romantic-era
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84a64fe032cf2940fb1ebdb6eefcd8141b7f1f5578ba10c6bd0ab049abc20bd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1046072 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Prodana nevesta (The Bartered Bride), Act I: Proc bychom se netesili
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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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Mahler: Symphony No. 8 in E-Flat Major "Symphony of a Thousand" (Live)
type: MusicAlbum
date published: 2020-01-17

Klenau: Die Weise Von Liebe Und Tod
type: MusicAlbum
date published: 2007-06-28

Weingartner: Symphony No. 7
type: MusicAlbum
date published: 2013-02-26

Winter: Maometto
type: MusicAlbum
date published: 2004-05-03

Moravian Christmas
type: MusicAlbum
date published: 2012-09-01

Martinů, Řezníček & Fiala: Sacred Works
type: MusicAlbum
date published: 2017-11-10

Brian: Symphonies Nos. 4 and 12
type: MusicAlbum
date published: 1992-11-06

Petr Fiala: Česká vánoční mše, Mariánská mše & Maria, růže tajemná
type: MusicAlbum
date published: 2017-06-09

Ryba: Hej, Mistře!
type: MusicAlbum
date published: 2013-03-26