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Die Zauberflöte, K. 620: Pa-Pa-Pa-Papagena!
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Impromptu (Thomas's piece)
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Don Giovanni, K.527: "Là ci darem la mano"
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Die junge Nonne, D.828
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Die junge Nonne, D.828
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Oboe Concerto in C Major, K. 314/285d: I. Allegro aperto
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by artist: François Leleux
by artist: Camerata Salzburg
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popularity: 11
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genre: classical-era
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Oboe Concerto in C Major, K. 314/285d: I. Allegro aperto
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A lenda do caboclo
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by artist: Sérgio Assad
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: A lenda do caboclo
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Carmen: Chanson bohème
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by artist: Ana Maria Martinez
by artist: Orchestra Regionale Filarmonia Veneta
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popularity: 12
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-13T07:53:33Z
audio: Carmen: Chanson bohème
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Welcome to Earth - (Bonus Track)
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by artist: Son Lux
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popularity: 5
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Welcome to Earth - (Bonus Track)
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Je n'aime pas Mozart, mais ça j'aime bien !
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track: Symphony No. 40 in G Minor, K. 550: I. Molto allegro
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T05:09:12Z
  audio: Symphony No. 40 in G Minor, K. 550: I. Molto allegro
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track: Requiem in D Minor, K. 626: III. Sequentia: Lacrimosa
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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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track: Ave Verum Corpus, K. 618
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track: Clarinet Concerto in A Major, K. 622: II. Adagio
track: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": I. Allegro
track: Die Zauberflöte, K. 620: Der Hölle Rache
track: Don Giovanni: Là Ci Darem La Mano
track: Symphony No. 25 in G Minor, K. 183: I. Allegro con brio

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

Ave Verum Corpus, K. 618
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Clarinet Concerto in A Major, K. 622: II. Adagio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Clarinet Concerto in A Major, K. 622: II. Adagio
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Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": I. Allegro
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": I. Allegro
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Die Zauberflöte, K. 620: Der Hölle Rache
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Die Zauberflöte, K. 620: Der Hölle Rache
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Don Giovanni: Là Ci Darem La Mano
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Don Giovanni: Là Ci Darem La Mano
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Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
audio: Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
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Ruthilde Boesch - Echo eines Sängerlebens
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The 50 Absolute Essentials of Classical Music
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value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC18000207

OTSTimestamp
type: PropertyValue
value: 2026-07-02T03:30:09Z

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 0x4a6197fcb3891f67dc2b9de0c82862ba78b6ceff28f616c8f068e6fc2fcca81b. 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/USBC18000207.
date published: 2026-07-02T03:30:09Z

Die Zauberflöte, K. 620: Der Hölle Rache
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 150.494
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: 0.437
additional property: Energy
  type: PropertyValue
  value: 0.133
additional property: Speechiness
  type: PropertyValue
  value: 0.055
additional property: Acousticness
  type: PropertyValue
  value: 0.976
additional property: Instrumentalness
  type: PropertyValue
  value: 0.068
additional property: Liveness
  type: PropertyValue
  value: 0.119
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.219
additional property: Loudness (dB)
  type: PropertyValue
  value: -22.446
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Major

Mozart: Die Zauberflöte K620 (Highlights) - Sony Classical Masters
type: MusicAlbum
date published: 1981
track: Die Zauberflöte, K. 620: Der Hölle Rache
  type: MusicRecording
  duration: PT2M50S
  duration ms: 170506
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: James Levine
  by artist: Zdislawa Donat
  by artist: Wiener Philharmoniker
  by artist: Christian Boesch
  in album: Mozart: Die Zauberflöte K620 (Highlights) - Sony Classical Masters
    type: MusicAlbum
    date published: 1981
  genre: classical
  genre: classical-era
  isrc code: USBC18000207
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T12:47:09+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4a6197fcb3891f67dc2b9de0c82862ba78b6ceff28f616c8f068e6fc2fcca81b
  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/USBC18000207
  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 0x4a6197fcb3891f67dc2b9de0c82862ba78b6ceff28f616c8f068e6fc2fcca81b. 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/USBC18000207.
    date published: 2026-07-08T03:22:41Z
  audio: Die Zauberflöte, K. 620: Der Hölle Rache
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 100.393
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.491
    additional property: Energy
      type: PropertyValue
      value: 0.134
    additional property: Speechiness
      type: PropertyValue
      value: 0.059
    additional property: Acousticness
      type: PropertyValue
      value: 0.977
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.054
    additional property: Liveness
      type: PropertyValue
      value: 0.304
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.233
    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.402
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Die Zauberflöte, K. 620: Pa-Pa-Pa-Papagena!
  type: MusicRecording
  duration: PT2M30S
  duration ms: 150320
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: James Levine
  by artist: Wiener Philharmoniker
  by artist: Ileana Cotrubas
  by artist: Christian Boesch
  by artist: Trudeliese Schmidt
  by artist: Horst Hiestermann
  by artist: Peter Weber
  by artist: Helge von Bomches
  by artist: Gerhard Panzenböck
  by artist: Christian Baumgartner
  by artist: José van Dam
  by artist: Martti Talvela
  by artist: Ingrid Mayr
  by artist: Horst Nitsche
  by artist: Markus Huber
  by artist: Gerhard Eder
  by artist: Wolfgang Scheider
  by artist: Rachel Yakar
  by artist: Zdzislawa Donat
  by artist: Karl Terkal
  by artist: Fritz Peschke
  by artist: Elizabeth Kales
  by artist: Thomas Paulsen
  by artist: Eric Tappy
  by artist: Christian Spatzek
  by artist: Vienna State Opera Chorus
  in album: Mozart: Die Zauberflöte K620 (Highlights) - Sony Classical Masters
    type: MusicAlbum
    date published: 1981
  genre: classical
  genre: classical-era
  isrc code: USBC18000225
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T06:40:59+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3ca728117bdc287d24144b4c9612a9b39b7c1e8d9cc6e3561b5355e28c502663
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956891
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956891
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC18000225
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T07:16:32Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca728117bdc287d24144b4c9612a9b39b7c1e8d9cc6e3561b5355e28c502663. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC18000225.
    date published: 2026-07-06T07:16:32Z
  audio: Die Zauberflöte, K. 620: Pa-Pa-Pa-Papagena!
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 126.146
    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: 0.501
    additional property: Energy
      type: PropertyValue
      value: 0.138
    additional property: Speechiness
      type: PropertyValue
      value: 0.052
    additional property: Acousticness
      type: PropertyValue
      value: 0.958
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.026
    additional property: Liveness
      type: PropertyValue
      value: 0.049
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.556
    additional property: Loudness (dB)
      type: PropertyValue
      value: -26.36
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name

Mode Name
type: PropertyValue
value: Major

I capolavori dell'opera
type: MusicAlbum
date published: 2013-12-02
track: "Un bel dì, vedremo" from Madama Butterfly
  type: MusicRecording
  duration: PT5M2S
  duration ms: 302453
  explicit: false
  by artist: Giacomo Puccini
  by artist: Renata Scotto
  by artist: Lorin Maazel
  by artist: Philharmonia Orchestra
  in album: I capolavori dell'opera
    type: MusicAlbum
    date published: 2013-12-02
  popularity: 0
  isrc code: USSM17800387
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T23:48:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbfe69e6420b03d8272450571ea85c8e4591f10bd62feb4931e9a7aedfefdecc5
  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/USSM17800387
  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 0xbfe69e6420b03d8272450571ea85c8e4591f10bd62feb4931e9a7aedfefdecc5. 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/USSM17800387.
    date published: 2026-07-08T03:20:19Z
  audio: "Un bel dì, vedremo" from Madama Butterfly
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 103.137
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.187
    additional property: Energy
      type: PropertyValue
      value: 0.128
    additional property: Speechiness
      type: PropertyValue
      value: 0.049
    additional property: Acousticness
      type: PropertyValue
      value: 0.984
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.005
    additional property: Liveness
      type: PropertyValue
      value: 0.084
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.052
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.942
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Tosca: Act II: Vissi d'arte
  type: MusicRecording
  duration: PT3M12S
  duration ms: 192106
  explicit: false
  by artist: Giacomo Puccini
  by artist: Leontyne Price
  by artist: Oliviero de Fabritiis
  in album: I capolavori dell'opera
    type: MusicAlbum
    date published: 2013-12-02
  popularity: 1
  isrc code: USBC19704782
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T04:02:35+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbbae0226d8f41a64ff7e36dbfe0697e577d2bb695151cf0ba9ee6f6e7e1b03b8
  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/USBC19704782
  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 0xbbae0226d8f41a64ff7e36dbfe0697e577d2bb695151cf0ba9ee6f6e7e1b03b8. 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/USBC19704782.
    date published: 2026-07-08T03:22:41Z
  audio: Tosca: Act II: Vissi d'arte
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 137.478
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.279
    additional property: Energy
      type: PropertyValue
      value: 0.232
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.984
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.006
    additional property: Liveness
      type: PropertyValue
      value: 0.07
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.043
    additional property: Loudness (dB)
      type: PropertyValue
      value: -20.068
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major

Faszination Klang - Die Wiener Philharmoniker
type: MusicAlbum
date published: 2011-04-29

Enchanting Adventures (Side B)
type: MusicAlbum
date published: 2022-12-30

Enchanting Adventures (Side A)
type: MusicAlbum
date published: 2022-12-23

Have Fun, Be Kind, Make Beats
type: MusicAlbum
date published: 2021-11-19

Planet of the Groove Worms
type: MusicAlbum
date published: 2020-12-30

Dreaming Out Loud
type: MusicAlbum
date published: 2020-11-01

Fresh Out the Kitchen
type: MusicAlbum
date published: 2019-06-30

Winning Streak
type: MusicAlbum
date published: 2019-04-05

Night Shenanigans
type: MusicAlbum
date published: 2018-12-28

Pulsating Vibrations
type: MusicAlbum
date published: 2018-10-15

Schumann Lieder - Mozart Arias
type: MusicAlbum
date published: 2014-02-05

Jamboree
type: MusicAlbum
date published: 2022-11-11

Escapism
type: MusicAlbum
date published: 2022-10-28

Love Beats, Vol. 1
type: MusicAlbum
date published: 2020-12-20

The Ghost Inside
type: MusicAlbum
date published: 2020-07-26

Une heure une vie - Mozart
type: MusicAlbum
date published: 2014-01-06

An Hour With Mozart
type: MusicAlbum
date published: 2007-09-28

Mozart: Die Zauberflöte
type: MusicAlbum
date published: 2006-08-29