Lisa della Casa
type: MusicGroup
genre: opera
description: Lisa Della Casa (2 February 191910 December 2012) was a Swiss soprano most admired for her interpretations of major heroines in operas by Wolfgang Amadeus Mozart and Richard Strauss, and of German lie
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album: Le nozze di Figaro / The Marriage of Figaro
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  date published: 2023-03-03
  track: Le nozze di Figaro / The Marriage of Figaro: Ouverture
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    genre: opera
    genre: chamber-music
    genre: concerto
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  track: Le nozze di Figaro / The Marriage of Figaro: Duettino: Cinque ... Dieci ... Venti ... Trenta …Cosa stai misurando
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      date published: 2026-07-30T16:10:47Z
    audio: Le nozze di Figaro / The Marriage of Figaro: Duettino: Cinque ... Dieci ... Venti ... Trenta …Cosa stai misurando
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  track: Le nozze di Figaro / The Marriage of Figaro: Duettino: Se a caso Madama la notte ti chiama …Or bene, ascolta
  track: Le nozze di Figaro / The Marriage of Figaro: Bravo, Signor Padrone … Cavatina. Se vuol ballare … Ed aspettaste
  track: Le nozze di Figaro / The Marriage of Figaro: Aria. La vendetta …Tutto ancor non ho perso
  track: Le nozze di Figaro / The Marriage of Figaro: Duettino: Via, resti servita … Va là, vecchia pedante
  track: Le nozze di Figaro / The Marriage of Figaro: Aria. Non so più … Ah, son perduto!
  track: Le nozze di Figaro / The Marriage of Figaro: Terzetto. Cosa sento! ... Murray Dickie (tenor), in traccia tosto… Giovani liete…Evviva!
  track: Le nozze di Figaro / The Marriage of Figaro: Aria. Non più andrai
  track: Le nozze di Figaro / The Marriage of Figaro: Cavatina; Porgi amor … Vieni, cara Susanna
  track: Le nozze di Figaro / The Marriage of Figaro: Arietta. Voi che sapete … Bravo, che bella voce!
  track: Le nozze di Figaro / The Marriage of Figaro: Signori, di fuori … Ah! Signor ... Signor!
  track: Le nozze di Figaro / The Marriage of Figaro: Sestetto: Riconosci in questo amplesso …. Eccovi, o caro amico...Andiamo, andiam, bel paggio
  track: Le nozze di Figaro / The Marriage of Figaro: Recitativo ed Aria Tutto è disposto
album: Il dissoluto punito ossia Il Don Giovanni
album: R. Strauss: Arabella, Op. 79, TrV 263 & 4 Letzte Lieder, TrV 296 (Live)
album: Mozart, Einem, Wagner & R. Strauss: Opera Arias
album: Mozart: Don Giovanni, K. 527 (Sung in German) [Recorded 1955] [Live]
album: Highlights From Don Giovanni
album: Ariadne Auf Naxos
album: Mozart: Die Zauberflöte, K. 620 (Live)
album: Elektra
album: Mozart: Cosi fan tutte
album: Wagner: Die Meistersinger von Nürnberg, WWV 96 (Bayerische Staatsoper Live)
album: Léhar: Der Zarewitsch (Querschnitt)
album: Wagner: Lohengrin, WWV 75
album: Richard Strauss: Der Rosenkavalier (Live)
album: Gluck: Orfeo ed Euridice (Recordings 1957)
album: Mozart: Le nozze di Figaro, K. 492 (Live)
album: R. Strauss: Capriccio, Op. 85, TrV 279 (Excerpts) [Live]
album: The Merry Widow Highlights
album: Mozart: Don Giovanni, K. 527 (Recorded 1959)
album: Mozart: Le nozze di Figaro, K. 492
album: Lisa Della Casa (Wiener Staatsoper Live)
album: Wagner: Die Meistersinger von Nürnberg, WWV 96 (Live)
album: Richard Strauss: Four Last Songs & Lieder by Lisa della Casa
album: Schumann & Strauss: Song Cycles & Selected Songs
album: Brahms, Schubert, R. Strauss & Others: Art Songs (Live)
album: Strauss: Elektra, Op. 58, TrV 223 (Live)
album: Gottfried von Einem: Der Prozeß, Op. 14 (Live)
album: Mahler Symphony No. 4
album: Singer Portrait: Lisa Della Casa
album: Operatic Recital
album: Richard Strauss Heroines
album: Lisa Della Casa sings Richard Strauss
album: Strauss, R.: 4 Last Songs / Arias and Scenes from Arabella, Capriccio and Ariadne auf Naxos
album: Mahler Symphony No. 4 G Major
album: Strauss, R.: Vier letzte Lieder
album: Opernszenen von Richard Strauss
album: Handel: Giulio Cesare & Mozart: Don Giovanni
album: Mozart: Don Giovanni - The Sony Opera House
album: Lisa della Casa und Anneliese Rothenberger in Opernszenen von Richard Strauss
album: Richard Strauss: Lieder
album: Strauss, R.: Arabella

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  date published: 2026-07-08T03:20:19Z
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Le nozze di Figaro / The Marriage of Figaro: Bravo, Signor Padrone … Cavatina. Se vuol ballare … Ed aspettaste
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD62142105
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 0x7668a3cd70cdd1c228fd9c93e1d76b013841448adf6e071baaaba40f7c82fd41. 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/DEAD62142105 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Le nozze di Figaro / The Marriage of Figaro: Aria. La vendetta …Tutto ancor non ho perso
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.937
  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: 0.364
  additional property: Energy
    type: PropertyValue
    value: 0.209
  additional property: Speechiness
    type: PropertyValue
    value: 0.078
  additional property: Acousticness
    type: PropertyValue
    value: 0.89
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.653
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.257
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.517
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le nozze di Figaro / The Marriage of Figaro: Duettino: Via, resti servita … Va là, vecchia pedante
type: MusicRecording
duration: PT4M11S
duration ms: 251666
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Wiener Philharmoniker
by artist: Vienna State Opera Chorus
by artist: Erich Kleiber
by artist: Hilde Rössel Majdan
by artist: Hilde Gueden
by artist: Suzanne Danco
in album: Le nozze di Figaro / The Marriage of Figaro
  type: MusicAlbum
  date published: 2023-03-03
popularity: 3
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DEAD62142106
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T19:33:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x306df10d0a580cef39987e234dbb1d3f06f933dd29ea7df8ac52ecb493c4bc42
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960455
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960455
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD62142106
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T19:53:13Z
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 0x306df10d0a580cef39987e234dbb1d3f06f933dd29ea7df8ac52ecb493c4bc42. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/DEAD62142106 — a six-check JSON result.
  date published: 2026-07-31T19:53:13Z
audio: Le nozze di Figaro / The Marriage of Figaro: Duettino: Via, resti servita … Va là, vecchia pedante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.371
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.494
  additional property: Energy
    type: PropertyValue
    value: 0.154
  additional property: Speechiness
    type: PropertyValue
    value: 0.065
  additional property: Acousticness
    type: PropertyValue
    value: 0.895
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.168
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.363
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.433
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le nozze di Figaro / The Marriage of Figaro: Aria. Non so più … Ah, son perduto!
type: MusicRecording
duration: PT5M54S
duration ms: 354453
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Wiener Philharmoniker
by artist: Vienna State Opera Chorus
by artist: Erich Kleiber
by artist: Suzanne Danco
by artist: Hilde Gueden
by artist: Alfred Poell
by artist: Murray Dickie
in album: Le nozze di Figaro / The Marriage of Figaro
  type: MusicAlbum
  date published: 2023-03-03
popularity: 3
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DEAD62142107
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T14:01:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8e8712ed6a1c417e4024c7a24623aa7617744b4ab1da02fd0120f32f9a78ebe7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960418
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960418
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD62142107
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15Z
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 0x8e8712ed6a1c417e4024c7a24623aa7617744b4ab1da02fd0120f32f9a78ebe7. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEAD62142107 — a six-check JSON result.
  date published: 2026-07-31T15:20:15Z
audio: Le nozze di Figaro / The Marriage of Figaro: Aria. Non so più … Ah, son perduto!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.926
  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: 0.475
  additional property: Energy
    type: PropertyValue
    value: 0.18
  additional property: Speechiness
    type: PropertyValue
    value: 0.216
  additional property: Acousticness
    type: PropertyValue
    value: 0.905
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.119
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.285
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.48
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le nozze di Figaro / The Marriage of Figaro: Terzetto. Cosa sento! ... Murray Dickie (tenor), in traccia tosto… Giovani liete…Evviva!
type: MusicRecording
duration: PT10M32S
duration ms: 632160
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Wiener Philharmoniker
by artist: Vienna State Opera Chorus
by artist: Erich Kleiber
by artist: Hilde Gueden
by artist: Alfred Poell
by artist: Murray Dickie
by artist: Suzanne Danco
by artist: Cesare Siepi
in album: Le nozze di Figaro / The Marriage of Figaro
  type: MusicAlbum
  date published: 2023-03-03
popularity: 2
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DEAD62142108
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T08:01:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdc5dab97d9e7c04cac8b3222e9be24f61280c138d51fb34603e00e4c9380d5ae
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960368
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960368
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD62142108
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41Z
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 0xdc5dab97d9e7c04cac8b3222e9be24f61280c138d51fb34603e00e4c9380d5ae. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEAD62142108 — a six-check JSON result.
  date published: 2026-07-31T08:26:41Z
audio: Le nozze di Figaro / The Marriage of Figaro: Terzetto. Cosa sento! ... Murray Dickie (tenor), in traccia tosto… Giovani liete…Evviva!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.524
  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: 0.44
  additional property: Energy
    type: PropertyValue
    value: 0.167
  additional property: Speechiness
    type: PropertyValue
    value: 0.079
  additional property: Acousticness
    type: PropertyValue
    value: 0.895
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.181
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.315
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.793
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le nozze di Figaro / The Marriage of Figaro: Aria. Non più andrai
type: MusicRecording
duration: PT3M51S
duration ms: 231160
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Wiener Philharmoniker
by artist: Vienna State Opera Chorus
by artist: Erich Kleiber
by artist: Cesare Siepi
in album: Le nozze di Figaro / The Marriage of Figaro
  type: MusicAlbum
  date published: 2023-03-03
popularity: 3
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DEAD62142109
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:11:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x46a366d35e141225d4c3238503f79a8765fa912c3c6ad158afbf5d6bd802e2ae
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/DEAD62142109
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 0x46a366d35e141225d4c3238503f79a8765fa912c3c6ad158afbf5d6bd802e2ae. 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/DEAD62142109 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Le nozze di Figaro / The Marriage of Figaro: Aria. Non più andrai
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.72
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.563
  additional property: Energy
    type: PropertyValue
    value: 0.302
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.766
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.009
  additional property: Liveness
    type: PropertyValue
    value: 0.153
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.351
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.656
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le nozze di Figaro / The Marriage of Figaro: Cavatina; Porgi amor … Vieni, cara Susanna
type: MusicRecording
duration: PT8M10S
duration ms: 490333
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Wiener Philharmoniker
by artist: Vienna State Opera Chorus
by artist: Erich Kleiber
by artist: Lisa della Casa
by artist: Hilde Gueden
by artist: Cesare Siepi
by artist: Suzanne Danco
in album: Le nozze di Figaro / The Marriage of Figaro
  type: MusicAlbum
  date published: 2023-03-03
popularity: 2
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DEAD62142110
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:23:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9648717c820dc88ee8de4f2b435708c0125c51d95f7c8322659c11e17e7b44f0
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/DEAD62142110
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 0x9648717c820dc88ee8de4f2b435708c0125c51d95f7c8322659c11e17e7b44f0. 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/DEAD62142110 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Le nozze di Figaro / The Marriage of Figaro: Cavatina; Porgi amor … Vieni, cara Susanna
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.444
  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: 0.415
  additional property: Energy
    type: PropertyValue
    value: 0.128
  additional property: Speechiness
    type: PropertyValue
    value: 0.152
  additional property: Acousticness
    type: PropertyValue
    value: 0.912
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.155
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.211
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.98
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le nozze di Figaro / The Marriage of Figaro: Arietta. Voi che sapete … Bravo, che bella voce!
type: MusicRecording
duration: PT3M50S
duration ms: 230573
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Wiener Philharmoniker
by artist: Vienna State Opera Chorus
by artist: Erich Kleiber
by artist: Suzanne Danco
by artist: Lisa della Casa
by artist: Hilde Gueden
in album: Le nozze di Figaro / The Marriage of Figaro
  type: MusicAlbum
  date published: 2023-03-03
popularity: 3
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: DEAD62142111
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T10:33:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdf96faaf3720daf0eaadc99af218dea5c70d2b3797ffd04eef77a4896f11ca84
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAD62142111
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T12:24:41Z
audio: Le nozze di Figaro / The Marriage of Figaro: Arietta. Voi che sapete … Bravo, che bella voce!
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Le nozze di Figaro / The Marriage of Figaro: Signori, di fuori … Ah! Signor ... Signor!
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by artist: Wiener Philharmoniker
by artist: Vienna State Opera Chorus
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by artist: Cesare Siepi
by artist: Alfred Poell
by artist: Hilde Gueden
by artist: Lisa della Casa
by artist: Harald Pröglhöf
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Le nozze di Figaro / The Marriage of Figaro: Sestetto: Riconosci in questo amplesso …. Eccovi, o caro amico...Andiamo, andiam, bel paggio
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by artist: Cesare Siepi
by artist: Fernando Corena
by artist: Hugo Meyer-Welfing
by artist: Alfred Poell
by artist: Hilde Gueden
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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: 2026-07-31T19:53:13Z
audio: Le nozze di Figaro / The Marriage of Figaro: Sestetto: Riconosci in questo amplesso …. Eccovi, o caro amico...Andiamo, andiam, bel paggio
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Le nozze di Figaro / The Marriage of Figaro: Recitativo ed Aria Tutto è disposto
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by artist: Hilde Rössel Majdan
by artist: Lisa della Casa
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popularity: 0
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genre: classical-era
genre: classical-piano
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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: 2026-07-08T03:20:19Z
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Il dissoluto punito ossia Il Don Giovanni
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date published: 2023-03-03

R. Strauss: Arabella, Op. 79, TrV 263 & 4 Letzte Lieder, TrV 296 (Live)
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Mozart, Einem, Wagner & R. Strauss: Opera Arias
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Mozart: Don Giovanni, K. 527 (Sung in German) [Recorded 1955] [Live]
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Highlights From Don Giovanni
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Ariadne Auf Naxos
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Mozart: Die Zauberflöte, K. 620 (Live)
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Elektra
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Mozart: Cosi fan tutte
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Wagner: Die Meistersinger von Nürnberg, WWV 96 (Bayerische Staatsoper Live)
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Léhar: Der Zarewitsch (Querschnitt)
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Wagner: Lohengrin, WWV 75
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Richard Strauss: Der Rosenkavalier (Live)
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Gluck: Orfeo ed Euridice (Recordings 1957)
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Mozart: Le nozze di Figaro, K. 492 (Live)
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R. Strauss: Capriccio, Op. 85, TrV 279 (Excerpts) [Live]
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The Merry Widow Highlights
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Mozart: Don Giovanni, K. 527 (Recorded 1959)
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Mozart: Le nozze di Figaro, K. 492
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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Lisa Della Casa (Wiener Staatsoper Live)
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Wagner: Die Meistersinger von Nürnberg, WWV 96 (Live)
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Richard Strauss: Four Last Songs & Lieder by Lisa della Casa
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Schumann & Strauss: Song Cycles & Selected Songs
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Brahms, Schubert, R. Strauss & Others: Art Songs (Live)
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Strauss: Elektra, Op. 58, TrV 223 (Live)
type: MusicAlbum
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Gottfried von Einem: Der Prozeß, Op. 14 (Live)
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date published: 2019-02-08

Mahler Symphony No. 4
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date published: 2016-07-26

Singer Portrait: Lisa Della Casa
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Operatic Recital
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date published: 2014-01-01

Richard Strauss Heroines
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Lisa Della Casa sings Richard Strauss
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Strauss, R.: 4 Last Songs / Arias and Scenes from Arabella, Capriccio and Ariadne auf Naxos
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Mahler Symphony No. 4 G Major
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Strauss, R.: Vier letzte Lieder
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Opernszenen von Richard Strauss
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Handel: Giulio Cesare & Mozart: Don Giovanni
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Mozart: Don Giovanni - The Sony Opera House
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Lisa della Casa und Anneliese Rothenberger in Opernszenen von Richard Strauss
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Richard Strauss: Lieder
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date published: 1964-03-28

Strauss, R.: Arabella
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ed85a2a000e9826251b71931e52ef238d94e1a3d0fdfc350637c7d68c7cb11. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBF075741201 — a six-check JSON result.
    date published: 2026-07-31T08:26:41Z
  audio: Arabella / Act 1: Die Karten fallen besser als das letzte Mal
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 89.475
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.318
    additional property: Energy
      type: PropertyValue
      value: 0.192
    additional property: Speechiness
      type: PropertyValue
      value: 0.163
    additional property: Acousticness
      type: PropertyValue
      value: 0.851
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.766
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.3
    additional property: Loudness (dB)
      type: PropertyValue
      value: -21.911
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Arabella / Act 1: Sie wollen alle Geld!
  type: MusicRecording
  duration: PT1M37S
  duration ms: 97973
  explicit: false
  by artist: Richard Strauss
  by artist: Hilde Gueden
  by artist: Wiener Philharmoniker
  by artist: Sir Georg Solti
  in album: Strauss, R.: Arabella
    type: MusicAlbum
    date published: 1958-01-01
  genre: classical
  genre: opera
  genre: orchestra
  isrc code: GBF075741202
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T13:11:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0a5e33747ab5cd903bdd217adcd8235eacef4a240926f3e2f10c409709b8546b
  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/GBF075741202
  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 0x0a5e33747ab5cd903bdd217adcd8235eacef4a240926f3e2f10c409709b8546b. 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/GBF075741202 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Arabella / Act 1: Sie wollen alle Geld!
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 77.949
    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: 0.452
    additional property: Energy
      type: PropertyValue
      value: 0.253
    additional property: Speechiness
      type: PropertyValue
      value: 0.09
    additional property: Acousticness
      type: PropertyValue
      value: 0.775
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.581
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.189
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.191
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Arabella / Act 1: Matteo!
  type: MusicRecording
  duration: PT3M45S
  duration ms: 225826
  explicit: false
  by artist: Richard Strauss
  by artist: Hilde Gueden
  by artist: Anton Dermota
  by artist: Wiener Philharmoniker
  by artist: Sir Georg Solti
  in album: Strauss, R.: Arabella
    type: MusicAlbum
    date published: 1958-01-01
  genre: classical
  genre: opera
  genre: orchestra
  isrc code: GBF075741203
  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: Arabella / Act 1: Matteo!
track: Arabella / Act 2: Ein Feigling bin ich
track: Arabella / Act 1: Ich danke, Fräulein
track: Arabella / Act 1: Er ist der Richtige nicht für mich!
track: Arabella / Act 1: Aber der Richtige, wenn's einen gibt für mich
track: Arabella / Act 1: Das ist der Schlitten vom Elemer
track: Arabella / Act 1: Laßt uns allein, meine Kinder
track: Arabella / Act 1: Mandryka!
track: Arabella / Act 1: Herr Graf, Sie haben Ihrem werten Brief
track: Arabella / Act 1: Der Onkel ist dahin
track: Arabella / Act 1: Das ist der Fall von andrer Art
track: Arabella / Act 1: Mein Elemer! ... Nach dem Matteo sehnt sich
track: Arabella / Act 2: Das ist ein Engel
track: Arabella / Act 2: Ich habe eine Frau gehabt
track: Arabella / Act 2: Sie wolln mich heiraten, sagt mein Vater
track: Arabella / Act 2: Und du wirst mein Gebieter sein

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T14:30:18+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x1114b9d9c28b117195a8ada9a580e761bf4f26e05f5a3adfb993ff72288d01d8

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957118

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

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075741203

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

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x1114b9d9c28b117195a8ada9a580e761bf4f26e05f5a3adfb993ff72288d01d8. 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/GBF075741203 — a six-check JSON result.
date published: 2026-07-08T03:20:19Z

Arabella / Act 1: Matteo!
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 120.664
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: 0.455
additional property: Energy
  type: PropertyValue
  value: 0.27
additional property: Speechiness
  type: PropertyValue
  value: 0.152
additional property: Acousticness
  type: PropertyValue
  value: 0.909
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.503
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.181
additional property: Loudness (dB)
  type: PropertyValue
  value: -17.815
additional property: Key Name
  type: PropertyValue
  value: C#
additional property: Mode Name
  type: PropertyValue
  value: Major

Arabella / Act 2: Ein Feigling bin ich
type: MusicRecording
duration: PT2M37S
duration ms: 157786
explicit: false
by artist: Richard Strauss
by artist: Anton Dermota
by artist: Hilde Gueden
by artist: George London
by artist: Wilhelm Lenninger
by artist: Fritz Sengl
by artist: Wiener Philharmoniker
by artist: Sir Georg Solti
in album: Strauss, R.: Arabella
  type: MusicAlbum
  date published: 1958-01-01
genre: classical
genre: opera
genre: orchestra
isrc code: GBF075741224
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T20:37:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd7f5f6069a7243dff7c62fdaa0957dbfecd90788445d8ca7276c26bf6a94920d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960468
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960468
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075741224
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T21:25:57Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xd7f5f6069a7243dff7c62fdaa0957dbfecd90788445d8ca7276c26bf6a94920d. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075741224 — a six-check JSON result.
  date published: 2026-07-31T21:25:57Z
audio: Arabella / Act 2: Ein Feigling bin ich
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 158.816
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.407
  additional property: Energy
    type: PropertyValue
    value: 0.171
  additional property: Speechiness
    type: PropertyValue
    value: 0.151
  additional property: Acousticness
    type: PropertyValue
    value: 0.839
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.772
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.186
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.65
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Arabella / Act 1: Ich danke, Fräulein
type: MusicRecording
duration: PT2M53S
duration ms: 173680
explicit: false
by artist: Richard Strauss
by artist: Lisa della Casa
by artist: Hilde Gueden
by artist: Wiener Philharmoniker
by artist: Sir Georg Solti
in album: Strauss, R.: Arabella
  type: MusicAlbum
  date published: 1958-01-01
genre: classical
genre: opera
genre: orchestra
isrc code: GBF075741204
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T14:19:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x71468001b4058cdc6091316e817a65431f66367b12bcb46476732f584cea08a4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960418
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960418
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075741204
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15Z
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 0x71468001b4058cdc6091316e817a65431f66367b12bcb46476732f584cea08a4. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBF075741204 — a six-check JSON result.
  date published: 2026-07-31T15:20:15Z
audio: Arabella / Act 1: Ich danke, Fräulein
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.485
  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: 0.291
  additional property: Energy
    type: PropertyValue
    value: 0.143
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.909
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.65
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.1
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.412
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Arabella / Act 1: Er ist der Richtige nicht für mich!
type: MusicRecording
duration: PT1M57S
duration ms: 117320
explicit: false
by artist: Richard Strauss
by artist: Lisa della Casa
by artist: Wiener Philharmoniker
by artist: Sir Georg Solti
in album: Strauss, R.: Arabella
  type: MusicAlbum
  date published: 1958-01-01
genre: classical
genre: opera
genre: orchestra
isrc code: GBF075741205
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:09:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3589030537817191168f5a21136c286d2bed92c7b6a6efd6ee4ed8fd75cceddf
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/GBF075741205
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 0x3589030537817191168f5a21136c286d2bed92c7b6a6efd6ee4ed8fd75cceddf. 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/GBF075741205 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Arabella / Act 1: Er ist der Richtige nicht für mich!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.045
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.263
  additional property: Energy
    type: PropertyValue
    value: 0.134
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.028
  additional property: Liveness
    type: PropertyValue
    value: 0.356
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.043
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.188
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Arabella / Act 1: Aber der Richtige, wenn's einen gibt für mich
type: MusicRecording
duration: PT4M0S
duration ms: 240253
explicit: false
by artist: Richard Strauss
by artist: Lisa della Casa
by artist: Hilde Gueden
by artist: Wiener Philharmoniker
by artist: Sir Georg Solti
in album: Strauss, R.: Arabella
  type: MusicAlbum
  date published: 1958-01-01
genre: classical
genre: opera
genre: orchestra
isrc code: GBF075741206
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:50:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9896c4642f0bbd7fc56beffd9ce6e99320556a22eaeb4690691481c1bd149cca
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/GBF075741206
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 0x9896c4642f0bbd7fc56beffd9ce6e99320556a22eaeb4690691481c1bd149cca. 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/GBF075741206 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Arabella / Act 1: Aber der Richtige, wenn's einen gibt für mich
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.318
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.223
  additional property: Energy
    type: PropertyValue
    value: 0.217
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.914
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.098
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.01
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Arabella / Act 1: Das ist der Schlitten vom Elemer
type: MusicRecording
duration: PT2M37S
duration ms: 157773
explicit: false
by artist: Richard Strauss
by artist: Hilde Gueden
by artist: Lisa della Casa
by artist: Wiener Philharmoniker
by artist: Sir Georg Solti
in album: Strauss, R.: Arabella
  type: MusicAlbum
  date published: 1958-01-01
genre: classical
genre: opera
genre: orchestra
isrc code: GBF075741207
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T06:01:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2af096e54bf33ebf86bcf23d110186a166ee7d042f1afd279df1c1a2110ee525
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960360
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960360
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075741207
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T06:42:11Z
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 0x2af096e54bf33ebf86bcf23d110186a166ee7d042f1afd279df1c1a2110ee525. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/GBF075741207 — a six-check JSON result.
  date published: 2026-07-31T06:42:11Z
audio: Arabella / Act 1: Das ist der Schlitten vom Elemer
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.784
  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: 0.374
  additional property: Energy
    type: PropertyValue
    value: 0.149
  additional property: Speechiness
    type: PropertyValue
    value: 0.068
  additional property: Acousticness
    type: PropertyValue
    value: 0.921
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.685
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.091
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.277
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Arabella / Act 1: Laßt uns allein, meine Kinder
type: MusicRecording
duration: PT4M42S
duration ms: 282986
explicit: false
by artist: Richard Strauss
by artist: Ira Malaniuk
by artist: Otto Edelmann
by artist: Karl Kolowratnik
by artist: Wiener Philharmoniker
by artist: Sir Georg Solti
in album: Strauss, R.: Arabella
  type: MusicAlbum
  date published: 1958-01-01
genre: classical
genre: opera
genre: orchestra
isrc code: GBF075741209
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T19:10:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcbc1e6a375e4120e528ea3691a08ad7b134d63b86192674c30522a2856f0ff61
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960455
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960455
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075741209
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T19:53:13Z
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 0xcbc1e6a375e4120e528ea3691a08ad7b134d63b86192674c30522a2856f0ff61. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBF075741209 — a six-check JSON result.
  date published: 2026-07-31T19:53:13Z
audio: Arabella / Act 1: Laßt uns allein, meine Kinder
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.265
  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: 0.415
  additional property: Energy
    type: PropertyValue
    value: 0.188
  additional property: Speechiness
    type: PropertyValue
    value: 0.061
  additional property: Acousticness
    type: PropertyValue
    value: 0.865
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.365
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.168
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.746
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Arabella / Act 1: Mandryka!
type: MusicRecording
duration: PT2M2S
duration ms: 122533
explicit: false
by artist: Richard Strauss
by artist: Otto Edelmann
by artist: Karl Kolowratnik
by artist: George London
by artist: Wiener Philharmoniker
by artist: Sir Georg Solti
in album: Strauss, R.: Arabella
  type: MusicAlbum
  date published: 1958-01-01
genre: classical
genre: opera
genre: orchestra
isrc code: GBF075741210
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T13:53:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6f4864ba0a308aab5f0438696a86f8ad61e9953e571f1082dcd5856dda6f2290
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960418
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960418
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075741210
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15Z
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 0x6f4864ba0a308aab5f0438696a86f8ad61e9953e571f1082dcd5856dda6f2290. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBF075741210 — a six-check JSON result.
  date published: 2026-07-31T15:20:15Z
audio: Arabella / Act 1: Mandryka!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.36
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.438
  additional property: Energy
    type: PropertyValue
    value: 0.214
  additional property: Speechiness
    type: PropertyValue
    value: 0.093
  additional property: Acousticness
    type: PropertyValue
    value: 0.867
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.402
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.198
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.383
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Arabella / Act 1: Herr Graf, Sie haben Ihrem werten Brief
type: MusicRecording
duration: PT4M34S
duration ms: 274320
explicit: false
by artist: Richard Strauss
by artist: George London
by artist: Otto Edelmann
by artist: Wiener Philharmoniker
by artist: Sir Georg Solti
in album: Strauss, R.: Arabella
  type: MusicAlbum
  date published: 1958-01-01
genre: classical
genre: opera
genre: orchestra
isrc code: GBF075741211
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T21:40:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa5e825053bdabb92e38a7239ee2ee8f7e06591d26ac220bb85d8c395b9b8ec84
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/GBF075741211
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 0xa5e825053bdabb92e38a7239ee2ee8f7e06591d26ac220bb85d8c395b9b8ec84. 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/GBF075741211 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Arabella / Act 1: Herr Graf, Sie haben Ihrem werten Brief
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.628
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.342
  additional property: Energy
    type: PropertyValue
    value: 0.144
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.919
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.261
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.084
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.529
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Arabella / Act 1: Der Onkel ist dahin
type: MusicRecording
duration: PT4M1S
duration ms: 241053
explicit: false
by artist: Richard Strauss
by artist: George London
by artist: Otto Edelmann
by artist: Wiener Philharmoniker
by artist: Sir Georg Solti
in album: Strauss, R.: Arabella
  type: MusicAlbum
  date published: 1958-01-01
genre: classical
genre: opera
genre: orchestra
isrc code: GBF075741212
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T17:52:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbd43194df09f66e0d42f23724daa4b6cd0c2217d394f023f4eb6c889d4bbbc45
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960448
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960448
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075741212
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T18:48:12Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xbd43194df09f66e0d42f23724daa4b6cd0c2217d394f023f4eb6c889d4bbbc45. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075741212 — a six-check JSON result.
  date published: 2026-07-31T18:48:12Z
audio: Arabella / Act 1: Der Onkel ist dahin
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.837
  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: 0.405
  additional property: Energy
    type: PropertyValue
    value: 0.318
  additional property: Speechiness
    type: PropertyValue
    value: 0.133
  additional property: Acousticness
    type: PropertyValue
    value: 0.779
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.005
  additional property: Liveness
    type: PropertyValue
    value: 0.098
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.373
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.68
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Arabella / Act 1: Das ist der Fall von andrer Art
type: MusicRecording
duration: PT4M7S
duration ms: 247480
explicit: false
by artist: Richard Strauss
by artist: George London
by artist: Otto Edelmann
by artist: Karl Kolowratnik
by artist: Hilde Gueden
by artist: Anton Dermota
by artist: Lisa della Casa
by artist: Wiener Philharmoniker
by artist: Sir Georg Solti
in album: Strauss, R.: Arabella
  type: MusicAlbum
  date published: 1958-01-01
genre: classical
genre: opera
genre: orchestra
isrc code: GBF075741213
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:58:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x93fca33ae90fbe045784f420e75a59f1f57f028c8df60e2fca9eb417c394a379
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/GBF075741213
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 0x93fca33ae90fbe045784f420e75a59f1f57f028c8df60e2fca9eb417c394a379. 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/GBF075741213 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Arabella / Act 1: Das ist der Fall von andrer Art
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.112
  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: 0.363
  additional property: Energy
    type: PropertyValue
    value: 0.179
  additional property: Speechiness
    type: PropertyValue
    value: 0.067
  additional property: Acousticness
    type: PropertyValue
    value: 0.923
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.605
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.185
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.046
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Arabella / Act 1: Mein Elemer! ... Nach dem Matteo sehnt sich
type: MusicRecording
duration: PT8M32S
duration ms: 512013
explicit: false
by artist: Richard Strauss
by artist: Lisa della Casa
by artist: Hilde Gueden
by artist: Wiener Philharmoniker
by artist: Sir Georg Solti
in album: Strauss, R.: Arabella
  type: MusicAlbum
  date published: 1958-01-01
genre: classical
genre: opera
genre: orchestra
isrc code: GBF075741214
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:31:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0a0ccc49a12f8f4885aeedcfa1667fcb5cf70a8bd39449ce979ffe382e6e3725
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/GBF075741214
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
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Arabella / Act 2: Das ist ein Engel
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Arabella / Act 2: Ich habe eine Frau gehabt
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Arabella / Act 2: Sie wolln mich heiraten, sagt mein Vater
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Arabella / Act 2: Und du wirst mein Gebieter sein
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R. Strauss: Capriccio, Op. 85, TrV 279 (Excerpts) [Live]
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date published: 2016-01-01