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genre: opera
description: Benno Paul Kusche (30 January 1916 – 14 May 2010) was a German operatic baritone, who was praised as one of the best Mozart and Wagner singers, especially in character roles and opera buffa. Career
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  track: Die Fledermaus: Overture
  track: Die Fledermaus, Act I: No. 1a, Introduction. Täubchen, das entflattert ist
  track: Die Fledermaus, Act II: Dialogue. Adele, wer hat denn dich hierher eingeladen?
  track: Die Fledermaus, Act I: Dialogue. Täubchen, das entflattert ist
  track: Die Fledermaus, Act II: No. 7, Couplet. Ich lade gern mir Gäste ein
  track: Die Fledermaus, Act I: No. 1b, Duettino. Ach, ich darf nicht hin zu dir!
  track: Die Fledermaus, Act II: Dialogue. Durchlaucht, hier ist Ihre Brieftasche wieder
  track: Die Fledermaus, Act I: Dialogue. Die arme Tante
  track: Die Fledermaus, Act II: No. 8a, Ach, meine Herr'n und Damen
  track: Die Fledermaus, Act I: No. 2, Trio. Nein, mit solchen Advokaten
  track: Die Fledermaus, Act II: No. 8b, Mein Herr Marquis "Adele's Laughing Song"
  track: Die Fledermaus, Act I: Dialogue. Sag mal, also statt fünf musst du acht Tage
  track: Die Fledermaus, Act II: Dialogue. Hoheit, ein Chevalier Chagrin ist da
  track: Die Fledermaus, Act I: No. 3, Duet. Komm mit mir zum Souper
  track: Die Fledermaus, Act II: No. 9, Duet. Dieser Anstand, so manierlich
  track: Die Fledermaus, Act I: Dialogue. Seid ihr verrückt geworden?
  track: Die Fledermaus, Act II: Dialogue. Ah, da ist ja die schöne Unbekannte
  track: Die Fledermaus, Act I: No. 4, Trio. So muss allein ich bleiben
  track: Die Fledermaus, Act II: No. 10, Csárdás. Klänge der Heimat
  track: Die Fledermaus, Act I: Dialogue. Ach...diese Männer
  track: Die Fledermaus, Act II: Dialogue. Bravo! Bravissimo!
  track: Die Fledermaus, Act I: No. 5, Finale. Trinke, Liebchen, trinke schnell
  track: Die Fledermaus, Act II: No. 11, Finale. Im Feuerstrom der Reben
  track: Die Fledermaus, Act II: No. 11a, Finale. Herr, Chevalier, ich grüsse Sie!
  track: Die Fledermaus / Act II: Unter Donner und Blitz, Polka, Op. 324
  track: Die Fledermaus / Act II: No. 11, Finale. c. Genug damit, genug
  track: Die Fledermaus, Act III: No. 12, Entr'acte
  track: Die Fledermaus, Act III: Dialogue. Täubchen, das entflattert ist
  track: Die Fledermaus, Act III: No. 13, Melodram. So, da wär'n wir ja zu Hause
  track: Die Fledermaus, Act III: Dialogue. Ah, der Herr Direktor ist entschlafen
  track: Die Fledermaus, Act III: No. 14, Couplet. Spiel' ich die Unschuld vom Lande
  track: Die Fledermaus, Act III: Dialogue. Herr Direktor!
  track: Die Fledermaus, Act III: No. 15, Trio. Ich stehe voll Zagen
  track: Die Fledermaus, Act III: Dialogue. Also, du willst mir Vorwürfe machen?
  track: Die Fledermaus, Act III: No. 16, Finale. O Fledermaus, o Fledermaus
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Die Fledermaus, Act II: Dialogue. Hoheit, ein Chevalier Chagrin ist da
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Die Fledermaus, Act II: Dialogue. Ah, da ist ja die schöne Unbekannte
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Die Fledermaus, Act I: No. 5, Finale. Trinke, Liebchen, trinke schnell
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  value: https://explorer.copyrightchains.com/tx/0x258f2c6cfe641feedc8ecae00d0d7483600a3e1d811d3b1fd51d98a9839321ba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530605
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953520
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258f2c6cfe641feedc8ecae00d0d7483600a3e1d811d3b1fd51d98a9839321ba. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEF057530605.
  date published: 2026-06-13T13:32:09Z
audio: Die Fledermaus, Act I: No. 5, Finale. Trinke, Liebchen, trinke schnell
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.752
  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: 0.458
  additional property: Energy
    type: PropertyValue
    value: 0.217
  additional property: Speechiness
    type: PropertyValue
    value: 0.073
  additional property: Acousticness
    type: PropertyValue
    value: 0.949
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.156
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.272
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.952
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Fledermaus, Act II: No. 11, Finale. Im Feuerstrom der Reben
type: MusicRecording
duration: PT2M12S
duration ms: 132800
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: Lucia Popp
by artist: Evi List
by artist: Hermann Prey
by artist: Benno Kusche
by artist: Bernd Weikl
by artist: Ivan Rebroff
by artist: Chor der Bayerischen Staatsoper München
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530633
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T15:54:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5d59fdb4f7eb713398ed5bff931a9e6418933581d2bf43d259d1654cef622dd7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530633
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953520
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d59fdb4f7eb713398ed5bff931a9e6418933581d2bf43d259d1654cef622dd7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEF057530633.
  date published: 2026-06-13T13:32:09Z
audio: Die Fledermaus, Act II: No. 11, Finale. Im Feuerstrom der Reben
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.795
  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: 0.518
  additional property: Energy
    type: PropertyValue
    value: 0.508
  additional property: Speechiness
    type: PropertyValue
    value: 0.162
  additional property: Acousticness
    type: PropertyValue
    value: 0.942
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.006
  additional property: Liveness
    type: PropertyValue
    value: 0.669
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.73
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.756
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Fledermaus, Act II: No. 11a, Finale. Herr, Chevalier, ich grüsse Sie!
type: MusicRecording
duration: PT5M21S
duration ms: 321226
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: Lucia Popp
by artist: Evi List
by artist: Benno Kusche
by artist: Bernd Weikl
by artist: Hermann Prey
by artist: Ivan Rebroff
by artist: Chor der Bayerischen Staatsoper München
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530634
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T09:02:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x37dd9ee96ac94fd16334896b12b6a3738521af3490359dfd0d07a2b3f75fa512
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530634
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37dd9ee96ac94fd16334896b12b6a3738521af3490359dfd0d07a2b3f75fa512. 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/DEF057530634.
  date published: 2026-07-02T03:30:09Z
audio: Die Fledermaus, Act II: No. 11a, Finale. Herr, Chevalier, ich grüsse Sie!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.046
  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: 0.304
  additional property: Energy
    type: PropertyValue
    value: 0.145
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.036
  additional property: Liveness
    type: PropertyValue
    value: 0.618
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.132
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.227
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Fledermaus / Act II: No. 11, Finale. c. Genug damit, genug
type: MusicRecording
duration: PT4M7S
duration ms: 247133
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: Lucia Popp
by artist: Evi List
by artist: Hermann Prey
by artist: Benno Kusche
by artist: Bernd Weikl
by artist: Ivan Rebroff
by artist: Chor der Bayerischen Staatsoper München
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530613
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T04:06:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfd1521ea3357318362e44e6cbd4f5e5552e3b5c93d54c1380ed0eed90aaf1c85
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530613
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953520
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1521ea3357318362e44e6cbd4f5e5552e3b5c93d54c1380ed0eed90aaf1c85. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530613.
  date published: 2026-06-13T15:41:10Z
audio: Die Fledermaus / Act II: No. 11, Finale. c. Genug damit, genug
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.581
  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: 0.45
  additional property: Energy
    type: PropertyValue
    value: 0.327
  additional property: Speechiness
    type: PropertyValue
    value: 0.111
  additional property: Acousticness
    type: PropertyValue
    value: 0.971
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.413
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.269
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.32
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Fledermaus, Act III: No. 13, Melodram. So, da wär'n wir ja zu Hause
type: MusicRecording
duration: PT3M46S
duration ms: 226573
explicit: false
by artist: Johann Strauss II
by artist: Benno Kusche
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530637
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T00:41:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2d6a3e31ee7d41643d8ace0fcc6ba7ebc4adfca239aa6faa9f22a16bf8291a94
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530637
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6a3e31ee7d41643d8ace0fcc6ba7ebc4adfca239aa6faa9f22a16bf8291a94. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530637.
  date published: 2026-07-02T03:55:08Z
audio: Die Fledermaus, Act III: No. 13, Melodram. So, da wär'n wir ja zu Hause
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.567
  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: 0.35
  additional property: Energy
    type: PropertyValue
    value: 0.023
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.953
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.308
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.225
  additional property: Loudness (dB)
    type: PropertyValue
    value: -34.95
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Fledermaus, Act III: Dialogue. Ah, der Herr Direktor ist entschlafen
type: MusicRecording
duration: PT1M33S
duration ms: 93493
explicit: false
by artist: Johann Strauss II
by artist: Franz Muxeneder
by artist: Benno Kusche
by artist: Lucia Popp
by artist: Evi List
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530638
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T17:13:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x13affec2b8adb2750e64f95e953d57bec6c59885548a2064cc71ed3219a4cc54
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530638
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13affec2b8adb2750e64f95e953d57bec6c59885548a2064cc71ed3219a4cc54. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530638.
  date published: 2026-07-02T05:09:12Z
audio: Die Fledermaus, Act III: Dialogue. Ah, der Herr Direktor ist entschlafen
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.016
  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: 0.554
  additional property: Energy
    type: PropertyValue
    value: 0.047
  additional property: Speechiness
    type: PropertyValue
    value: 0.495
  additional property: Acousticness
    type: PropertyValue
    value: 0.685
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.7
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.319
  additional property: Loudness (dB)
    type: PropertyValue
    value: -35.399
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Die Fledermaus, Act III: No. 14, Couplet. Spiel' ich die Unschuld vom Lande
type: MusicRecording
duration: PT4M12S
duration ms: 252573
explicit: false
by artist: Johann Strauss II
by artist: Lucia Popp
by artist: Evi List
by artist: Benno Kusche
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530615
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T04:04:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa3b50aa988f20798d57d810403e0244f463ba1356c04ff0b1f57becde72f8857
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530615
additional property: OTSTimestamp
  type: PropertyValue
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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
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Die Fledermaus, Act III: No. 14, Couplet. Spiel' ich die Unschuld vom Lande
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Die Fledermaus, Act III: Dialogue. Herr Direktor!
type: MusicRecording
duration: PT3M26S
duration ms: 206360
explicit: false
by artist: Johann Strauss II
by artist: Franz Muxeneder
by artist: Lucia Popp
by artist: Benno Kusche
by artist: Hermann Prey
by artist: Ferry Gruber
by artist: Julia Varady
in album: Strauss: Die Fledermaus
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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
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additional property: TokenDeploymentConfirmed
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Die Fledermaus, Act III: Dialogue. Herr Direktor!
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Die Fledermaus, Act III: Dialogue. Also, du willst mir Vorwürfe machen?
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duration: PT0M40S
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by artist: Julia Varady
by artist: Hermann Prey
by artist: Benno Kusche
by artist: René Kollo
by artist: Franz Muxeneder
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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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Die Fledermaus, Act III: Dialogue. Also, du willst mir Vorwürfe machen?
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Die Fledermaus, Act III: No. 16, Finale. O Fledermaus, o Fledermaus
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duration: PT2M39S
duration ms: 159426
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: Lucia Popp
by artist: Evi List
by artist: René Kollo
by artist: Hermann Prey
by artist: Benno Kusche
by artist: Bernd Weikl
by artist: Ivan Rebroff
by artist: Chor der Bayerischen Staatsoper München
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
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  date published: 1976-01-01
isrc code: DEF057530616
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530616
additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Die Fledermaus, Act III: No. 16, Finale. O Fledermaus, o Fledermaus
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The Merry Widow (Die lustige Witwe) / Act 1: Wenn Beifall dieser Abend findet
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duration: PT1M12S
duration ms: 72093
explicit: false
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by artist: Benno Kusche
by artist: Günter Kallmann Chor
by artist: Gunter Kallmann Choir
in album: Franz Lehár: Die lustige Witwe
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  date published: 1968-01-01
genre: opera
isrc code: DEF066810510
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: The Merry Widow (Die lustige Witwe) / Act 1: Wenn Beifall dieser Abend findet
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The Merry Widow (Die lustige Witwe) / Act 2: Weibermarsch
type: MusicRecording
duration: PT3M2S
duration ms: 182173
explicit: false
by artist: Franz Lehár
by artist: Heinz Hoppe
by artist: Benno Kusche
by artist: Grosses Operetten Orchester
by artist: Franz Marszalek
in album: Franz Lehár: Die lustige Witwe
  type: MusicAlbum
  date published: 1968-01-01
genre: opera
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5c091bba8967ae24ef13589ce5cc2e45be276468ef0b44b54d25ffb443c7c5. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/DEF066810580.
  date published: 2026-07-29T14:28:24Z
audio: The Merry Widow (Die lustige Witwe) / Act 2: Weibermarsch
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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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

Der Graf von Luxembourg, Operetta in 3 Acts / Act 2: Sind Sie von Sinnen, Herr Baron?...Lieber Freund
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duration: PT5M9S
duration ms: 309693
explicit: false
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by artist: Werner Hollweg
by artist: Benno Kusche
by artist: Heinz Holecek
by artist: Arlene Saunders
by artist: Monique Lobasa
by artist: Walter Jenewein
by artist: Herbert Zack-Leweer
by artist: Hans Strohbauer
by artist: Vienna Volksoper Orchestra
by artist: Wiener Volksopernchor
by artist: Franz Allers
in album: Best of Operette
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  date published: 2012-01-01
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T20:22:46Z
audio: Der Graf von Luxembourg, Operetta in 3 Acts / Act 2: Sind Sie von Sinnen, Herr Baron?...Lieber Freund
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Der Rosenkavalier, Op. 59, TrV 227, Act III: Act III: Inroduction
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Der Rosenkavalier, Op. 59, TrV 227, Act II: Act II: In dieser feierlichen Stunde der Prufung (Sophie, Marianne, Three Runners)
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  date published: 2026-07-08T03:22:41Z
audio: Der Rosenkavalier, Op. 59, TrV 227, Act II: Act II: In dieser feierlichen Stunde der Prufung (Sophie, Marianne, Three Runners)
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Der Rosenkavalier, Op. 59, TrV 227, Act II: Act II: Ich kenn Ihn schon recht wohl, mon Cousin! (Sophie, Octavian)
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  date published: 2026-07-08T08:56:20Z
audio: Der Rosenkavalier, Op. 59, TrV 227, Act II: Act II: Ich kenn Ihn schon recht wohl, mon Cousin! (Sophie, Octavian)
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Der Rosenkavalier, Op. 59, TrV 227, Act I: Act I: Macht das einen lahmen Esel aus mir? (Baron, Marschallin, Octavian)
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  date published: 2026-07-08T08:56:20Z
audio: Der Rosenkavalier, Op. 59, TrV 227, Act I: Act I: Macht das einen lahmen Esel aus mir? (Baron, Marschallin, Octavian)
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Der Rosenkavalier, Op. 59, TrV 227, Act I: Act I: I komm' glei! (Octavian, Orphans, Milliner, Animal Vendor, Marschallin, Valzacchi)
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by artist: Annelie Waas
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  date published: 2026-07-08T08:56:20Z
audio: Der Rosenkavalier, Op. 59, TrV 227, Act I: Act I: I komm' glei! (Octavian, Orphans, Milliner, Animal Vendor, Marschallin, Valzacchi)
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Der Rosenkavalier, Op. 59, TrV 227, Act I: Act I: Die swarze Seitung! (Valzacchi, Marschallin, Waisen)
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audio: Der Rosenkavalier, Op. 59, TrV 227, Act I: Act I: Die swarze Seitung! (Valzacchi, Marschallin, Waisen)
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Der Rosenkavalier, Op. 59, TrV 227, Act I: Act I: Di rigori armato il seno (Singer)
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Der Rosenkavalier, Op. 59, TrV 227: Introduction
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Der Rosenkavalier, Op. 59, TrV 227, Act I: Act I: Wie du warst! Wie du bist! (Octavian, Marschallin)
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audio: Der Rosenkavalier, Op. 59, TrV 227, Act I: Act I: Wie du warst! Wie du bist! (Octavian, Marschallin)
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Der Rosenkavalier, Op. 59, TrV 227, Act I: Act I: Du bist mein Bub, Du Bist mein Schatz! (Marschallin, Octavian)
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  date published: 2026-07-31T04:14:58Z
audio: Der Rosenkavalier, Op. 59, TrV 227, Act I: Act I: Du bist mein Bub, Du Bist mein Schatz! (Marschallin, Octavian)
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Der Rosenkavalier, Op. 59, TrV 227, Act I: Act I: Der Feldmarschall sitzt im krowatischen Wald (Octavian, Marschallin)
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  date published: 2026-07-31T20:22:46Z
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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

Der Rosenkavalier, Op. 59, TrV 227, Act II: Act II: Mir ist die Ehre widerfahren (Octavian, Sophie)
type: MusicRecording
duration: PT6M12S
duration ms: 372880
explicit: false
by artist: Richard Strauss
by artist: Lorenz Fehenberger
by artist: Chor der Bayerischen Staatsoper
by artist: Bavarian State Orchestra
by artist: Gerhard Unger
by artist: Claire Watson
by artist: Lucia Popp
by artist: Brigitte Fassbaender
by artist: Benno Kusche
by artist: Karl Ridderbusch
by artist: David Thaw
by artist: Albrecht Peter
by artist: Annelie Waas
by artist: Margarethe Bence
by artist: Georg Paskuda
by artist: Franz Klarwein
by artist: Hans Wilbrink
by artist: Carlos Kleiber
in album: R. Strauss: Der Rosenkavalier (The Knight of the Rose), Op. 59, TrV 227
  type: MusicAlbum
  date published: 2016-01-01
genre: classical
genre: opera
genre: orchestra
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3ca52184e6240b1171a5d15f32b0127ff97cc0f90fc9d23342fa0fe5dae201. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/DEB950858127.
  date published: 2026-07-31T06:58:00Z
audio: Der Rosenkavalier, Op. 59, TrV 227, Act II: Act II: Mir ist die Ehre widerfahren (Octavian, Sophie)
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additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T06:58:00+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Der Rosenkavalier, Op. 59, TrV 227, Act I: Act I: Quinquin, es ist mein Mann! (Marschallin, Octavian, Marschallin's Majordomo, Baron)
type: MusicRecording
duration: PT1M50S
duration ms: 110240
explicit: false
by artist: Richard Strauss
by artist: Gerhard Unger
by artist: Lucia Popp
by artist: Chor der Bayerischen Staatsoper
by artist: Benno Kusche
by artist: Hans Wilbrink
by artist: David Thaw
by artist: Georg Paskuda
by artist: Annelie Waas
by artist: Claire Watson
by artist: Brigitte Fassbaender
by artist: Bavarian State Orchestra
by artist: Lorenz Fehenberger
by artist: Margarethe Bence
by artist: Karl Ridderbusch
by artist: Franz Klarwein
by artist: Albrecht Peter
by artist: Carlos Kleiber
in album: R. Strauss: Der Rosenkavalier (The Knight of the Rose), Op. 59, TrV 227
  type: MusicAlbum
  date published: 2016-01-01
genre: classical
genre: opera
genre: orchestra
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76e45faed3b81981a67c76865879e3670289a645de2165f727c3218552c6335. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/DEB950858105.
  date published: 2026-07-31T23:51:35Z
audio: Der Rosenkavalier, Op. 59, TrV 227, Act I: Act I: Quinquin, es ist mein Mann! (Marschallin, Octavian, Marschallin's Majordomo, Baron)
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  additional property: Danceability
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additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: ContentHash
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:51:35+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Der Rosenkavalier, Op. 59, TrV 227, Act II: Act II: Herr Kavalier! (Annina, Baron)
type: MusicRecording
duration: PT4M49S
duration ms: 289800
explicit: false
by artist: Richard Strauss
by artist: Lorenz Fehenberger
by artist: Chor der Bayerischen Staatsoper
by artist: Bavarian State Orchestra
by artist: Gerhard Unger
by artist: Claire Watson
by artist: Lucia Popp
by artist: Brigitte Fassbaender
by artist: Benno Kusche
by artist: Karl Ridderbusch
by artist: David Thaw
by artist: Albrecht Peter
by artist: Annelie Waas
by artist: Margarethe Bence
by artist: Georg Paskuda
by artist: Franz Klarwein
by artist: Hans Wilbrink
by artist: Carlos Kleiber
in album: R. Strauss: Der Rosenkavalier (The Knight of the Rose), Op. 59, TrV 227
  type: MusicAlbum
  date published: 2016-01-01
genre: classical
genre: opera
genre: orchestra
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3b094415bcf02e309154e7cd0b07afff52c6505a8cde2fdc45a2c6e7cec74d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB950858142.
  date published: 2026-07-31T12:24:41Z
audio: Der Rosenkavalier, Op. 59, TrV 227, Act II: Act II: Herr Kavalier! (Annina, Baron)
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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isrc code: DEB950858142
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

The Gypsy Princess (Die Csárdásfürstin): Einleitung - "Die Mädis vom Chantant"
type: MusicRecording
duration: PT2M12S
duration ms: 132960
explicit: false
by artist: Emmerich Kálmán
by artist: Willy Hofmann
by artist: Renate Holm
by artist: Benno Kusche
by artist: Herta Talmar
by artist: Grosses Operetten Orchester
by artist: Franz Marszalek
in album: Gräfin Mariza - Die Csárdásfürstin - Die Zirkusprinzessin
  type: MusicAlbum
  date published: 1993-01-01
genre: fado
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23693c9f18b8020d4c6387408234f1f517f8e6c6c9eb270a94c2ede9a042b3d4. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEF065900430.
  date published: 2026-07-31T05:17:02Z
audio: The Gypsy Princess (Die Csárdásfürstin): Einleitung - "Die Mädis vom Chantant"
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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isrc code: DEF065900430
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T05:17:02+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

The Gypsy Princess (Die Csárdásfürstin): "Joj, Mamam"
type: MusicRecording
duration: PT1M25S
duration ms: 85133
explicit: false
by artist: Emmerich Kálmán
by artist: Willy Hofmann
by artist: Benno Kusche
by artist: Herta Talmar
by artist: Grosses Operetten Orchester
by artist: Franz Marszalek
in album: Gräfin Mariza - Die Csárdásfürstin - Die Zirkusprinzessin
  type: MusicAlbum
  date published: 1993-01-01
genre: fado
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7329b8510debb20bbc3d8b8965cf72422d2c47fb9efbf4250775f4efee7dcc1. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF065900500.
  date published: 2026-07-31T02:19:15Z
audio: The Gypsy Princess (Die Csárdásfürstin): "Joj, Mamam"
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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additional property: OTSVerificationAPI
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Offenbach: Orpheus in der Unterwelt, Act 2: "Ich glaubte, hier etwas zu fühlen" (Eurydike, Jupiter)
type: MusicRecording
duration: PT5M55S
duration ms: 355213
explicit: false
by artist: Jacques Offenbach
by artist: Willy Mattes
by artist: Anneliese Rothenberger
by artist: Benno Kusche
by artist: Philharmonia Hungarica
in album: Offenbach: Orpheus in der Unterwelt
  type: MusicAlbum
  date published: 1978
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf833bd0d7a1a5d2c7134c4e7fd1b00b3b079725441d9aff4fcb0aa0d85874bbe. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC628700780.
  date published: 2026-07-31T13:04:34Z
audio: Offenbach: Orpheus in der Unterwelt, Act 2: "Ich glaubte, hier etwas zu fühlen" (Eurydike, Jupiter)
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  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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  additional property: Speechiness
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  additional property: Acousticness
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additional property: CopyrightID
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additional property: OTSVerificationAPI
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additional property: OTSHash
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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

Die Fledermaus / Act 3: Nr.16 Finale: "O Fledermaus, o Fledermaus"
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Die Fledermaus: Overture
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Die Fledermaus, Act I: No. 1a, Introduction. Täubchen, das entflattert ist
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Die Fledermaus, Act II: Dialogue. Adele, wer hat denn dich hierher eingeladen?
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Die Fledermaus, Act I: Dialogue. Täubchen, das entflattert ist
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Die Fledermaus, Act II: No. 7, Couplet. Ich lade gern mir Gäste ein
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Die Fledermaus, Act I: No. 1b, Duettino. Ach, ich darf nicht hin zu dir!
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  date published: 2026-06-13T13:32:09Z
audio: Die Fledermaus, Act I: No. 1b, Duettino. Ach, ich darf nicht hin zu dir!
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Die Fledermaus, Act II: Dialogue. Durchlaucht, hier ist Ihre Brieftasche wieder
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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: Die Fledermaus, Act II: Dialogue. Durchlaucht, hier ist Ihre Brieftasche wieder
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Die Fledermaus, Act I: Dialogue. Die arme Tante
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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: Die Fledermaus, Act I: Dialogue. Die arme Tante
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Die Fledermaus, Act II: No. 8a, Ach, meine Herr'n und Damen
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Die Fledermaus, Act II: No. 8a, Ach, meine Herr'n und Damen
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Die Fledermaus, Act I: No. 2, Trio. Nein, mit solchen Advokaten
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Die Fledermaus, Act I: No. 2, Trio. Nein, mit solchen Advokaten
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Die Fledermaus, Act II: No. 8b, Mein Herr Marquis "Adele's Laughing Song"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Die Fledermaus, Act II: No. 8b, Mein Herr Marquis "Adele's Laughing Song"
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Die Fledermaus, Act I: Dialogue. Sag mal, also statt fünf musst du acht Tage
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Die Fledermaus, Act I: Dialogue. Sag mal, also statt fünf musst du acht Tage
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Die Fledermaus, Act I: No. 3, Duet. Komm mit mir zum Souper
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed649a44cde386dad343c65a6000eb777badf94bea08ae0b326954f924db722. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEF057530603.
  date published: 2026-06-13T13:32:09Z
audio: Die Fledermaus, Act I: No. 3, Duet. Komm mit mir zum Souper
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 131.356
  additional property: Musical Key
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    value: 7
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.482
  additional property: Energy
    type: PropertyValue
    value: 0.196
  additional property: Speechiness
    type: PropertyValue
    value: 0.087
  additional property: Acousticness
    type: PropertyValue
    value: 0.961
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.074
  additional property: Liveness
    type: PropertyValue
    value: 0.356
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.335
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.213
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Fledermaus, Act II: No. 9, Duet. Dieser Anstand, so manierlich
type: MusicRecording
duration: PT4M44S
duration ms: 284106
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: Hermann Prey
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530609
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-19T09:02:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeee8e9264ba636017ab7eb66b707669cdeaf3d393f2a2ef2f003395c31e3e3ff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530609
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0xeee8e9264ba636017ab7eb66b707669cdeaf3d393f2a2ef2f003395c31e3e3ff. 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/DEF057530609.
  date published: 2026-07-02T03:30:09Z
audio: Die Fledermaus, Act II: No. 9, Duet. Dieser Anstand, so manierlich
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.404
  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: 0.361
  additional property: Energy
    type: PropertyValue
    value: 0.17
  additional property: Speechiness
    type: PropertyValue
    value: 0.075
  additional property: Acousticness
    type: PropertyValue
    value: 0.966
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.196
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.314
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.916
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
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Die Fledermaus, Act I: Dialogue. Seid ihr verrückt geworden?
type: MusicRecording
duration: PT1M18S
duration ms: 78760
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: Hermann Prey
by artist: Bernd Weikl
by artist: Lucia Popp
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530624
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T22:47:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xecf64fe6f19118fd6e8ed2d52d16883fae7fd25356c4cbec3c1332f771e410f9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530624
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf64fe6f19118fd6e8ed2d52d16883fae7fd25356c4cbec3c1332f771e410f9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530624.
  date published: 2026-07-02T03:55:08Z
audio: Die Fledermaus, Act I: Dialogue. Seid ihr verrückt geworden?
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.086
  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: 0.528
  additional property: Energy
    type: PropertyValue
    value: 0.13
  additional property: Speechiness
    type: PropertyValue
    value: 0.722
  additional property: Acousticness
    type: PropertyValue
    value: 0.75
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.316
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.214
  additional property: Loudness (dB)
    type: PropertyValue
    value: -36.716
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Fledermaus, Act I: No. 4, Trio. So muss allein ich bleiben
type: MusicRecording
duration: PT3M46S
duration ms: 226973
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: Lucia Popp
by artist: Hermann Prey
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530604
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T19:14:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa421a198632cbadaab296923c166878a165ece5dc09061733b35cf381461d06f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953515
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530604
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
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 0xa421a198632cbadaab296923c166878a165ece5dc09061733b35cf381461d06f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEF057530604.
  date published: 2026-06-13T12:53:06Z
audio: Die Fledermaus, Act I: No. 4, Trio. So muss allein ich bleiben
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.394
  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: 0.399
  additional property: Energy
    type: PropertyValue
    value: 0.228
  additional property: Speechiness
    type: PropertyValue
    value: 0.062
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.503
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.144
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.116
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Fledermaus, Act II: No. 10, Csárdás. Klänge der Heimat
type: MusicRecording
duration: PT4M2S
duration ms: 242026
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530610
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T15:59:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xce1b2c1d8ac299217c09c3879cd41062d184fe90f12c44e255d0d16d8571435c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530610
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0xce1b2c1d8ac299217c09c3879cd41062d184fe90f12c44e255d0d16d8571435c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEF057530610.
  date published: 2026-06-13T13:32:09Z
audio: Die Fledermaus, Act II: No. 10, Csárdás. Klänge der Heimat
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.474
  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: 0.372
  additional property: Energy
    type: PropertyValue
    value: 0.177
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.96
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.849
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.156
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.008
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Fledermaus, Act I: Dialogue. Ach...diese Männer
type: MusicRecording
duration: PT1M0S
duration ms: 60960
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: René Kollo
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530625
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T22:42:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x22845a8460a2351cc6dc33968c6ac3b529e0268ff9d4c532b6293acd362bb012
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530625
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22845a8460a2351cc6dc33968c6ac3b529e0268ff9d4c532b6293acd362bb012. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530625.
  date published: 2026-07-02T03:55:08Z
audio: Die Fledermaus, Act I: Dialogue. Ach...diese Männer
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 166.908
  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: 0.472
  additional property: Energy
    type: PropertyValue
    value: 0.048
  additional property: Speechiness
    type: PropertyValue
    value: 0.903
  additional property: Acousticness
    type: PropertyValue
    value: 0.679
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.257
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.4
  additional property: Loudness (dB)
    type: PropertyValue
    value: -34.371
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Die Fledermaus, Act II: Dialogue. Bravo! Bravissimo!
type: MusicRecording
duration: PT2M12S
duration ms: 132040
explicit: false
by artist: Johann Strauss II
by artist: Evi List
by artist: Julia Varady
by artist: Ivan Rebroff
by artist: Bernd Weikl
by artist: Hermann Prey
by artist: Chor der Bayerischen Staatsoper München
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530632
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T00:41:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa40025a8e5ffd0305653c97826c72b3cc944c504be92d5162cd09d8ef8eb2ef1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530632
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40025a8e5ffd0305653c97826c72b3cc944c504be92d5162cd09d8ef8eb2ef1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530632.
  date published: 2026-07-02T03:55:08Z
audio: Die Fledermaus, Act II: Dialogue. Bravo! Bravissimo!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.844
  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: 0.599
  additional property: Energy
    type: PropertyValue
    value: 0.335
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.919
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.356
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.754
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
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Die Fledermaus / Act II: Unter Donner und Blitz, Polka, Op. 324
type: MusicRecording
duration: PT2M55S
duration ms: 175733
explicit: false
by artist: Johann Strauss II
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530612
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T04:06:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8a160d1dd8c780a2f9c024d0e167519ae8dc74e7d7b0241bb9d8d6ba3ea73b1b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530612
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0x8a160d1dd8c780a2f9c024d0e167519ae8dc74e7d7b0241bb9d8d6ba3ea73b1b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEF057530612.
  date published: 2026-06-13T13:32:09Z
audio: Die Fledermaus / Act II: Unter Donner und Blitz, Polka, Op. 324
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.468
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.074
  additional property: Acousticness
    type: PropertyValue
    value: 0.731
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.838
  additional property: Liveness
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    value: 0.663
  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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Die Fledermaus, Act III: No. 12, Entr'acte
type: MusicRecording
duration: PT0M57S
duration ms: 57373
explicit: false
by artist: Johann Strauss II
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530614
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-06-19T09:02:28+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x1936d8c0b34db284e76ce44c09d24437c98f992669af0a452b8cd712b2e0aee1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530614
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0x1936d8c0b34db284e76ce44c09d24437c98f992669af0a452b8cd712b2e0aee1. 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/DEF057530614.
  date published: 2026-07-02T03:30:09Z
audio: Die Fledermaus, Act III: No. 12, Entr'acte
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.483
  additional property: Energy
    type: PropertyValue
    value: 0.306
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.781
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.89
  additional property: Liveness
    type: PropertyValue
    value: 0.337
  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Die Fledermaus, Act III: Dialogue. Täubchen, das entflattert ist
type: MusicRecording
duration: PT1M7S
duration ms: 67626
explicit: false
by artist: Johann Strauss II
by artist: René Kollo
by artist: Franz Muxeneder
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530636
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T09:45:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x901568c605224a3ff11707395f274d6c8f97454ade02dc2c33ba9944a94574d2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530636
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901568c605224a3ff11707395f274d6c8f97454ade02dc2c33ba9944a94574d2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530636.
  date published: 2026-07-02T05:09:12Z
audio: Die Fledermaus, Act III: Dialogue. Täubchen, das entflattert ist
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.951
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.513
  additional property: Energy
    type: PropertyValue
    value: 0.031
  additional property: Speechiness
    type: PropertyValue
    value: 0.405
  additional property: Acousticness
    type: PropertyValue
    value: 0.577
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.257
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.182
  additional property: Loudness (dB)
    type: PropertyValue
    value: -37.694
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
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Die Fledermaus, Act III: No. 15, Trio. Ich stehe voll Zagen
type: MusicRecording
duration: PT7M1S
duration ms: 421066
explicit: false
by artist: Johann Strauss II
by artist: Julia Varady
by artist: René Kollo
by artist: Hermann Prey
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Strauss: Die Fledermaus
  type: MusicAlbum
  date published: 1976-01-01
isrc code: DEF057530640
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T19:13:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x740bceadedae4ebcd5f53d670e9c2febcc99d650257aef924d64b3fdcf8804e2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530640
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0x740bceadedae4ebcd5f53d670e9c2febcc99d650257aef924d64b3fdcf8804e2. 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/DEF057530640.
  date published: 2026-07-02T03:30:09Z
audio: Die Fledermaus, Act III: No. 15, Trio. Ich stehe voll Zagen
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.886
  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: 0.486
  additional property: Energy
    type: PropertyValue
    value: 0.251
  additional property: Speechiness
    type: PropertyValue
    value: 0.072
  additional property: Acousticness
    type: PropertyValue
    value: 0.949
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.655
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.283
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.501
  additional property: Key Name
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    value: C
  additional property: Mode Name
    type: PropertyValue
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Johann Strauß: Die Fledermaus
type: MusicAlbum
date published: 1968-01-01
track: Die Fledermaus / Act 1: Terzett: Oje, wie rührt mich dies
  type: MusicRecording
  duration: PT2M34S
  duration ms: 154106
  explicit: false
  by artist: Johann Strauss II
  by artist: Reinhold Bartel
  by artist: Ingeborg Hallstein
  by artist: Ursula Fischer
  by artist: Chor
  by artist: Grosses Operetten Orchester
  by artist: Franz Marszalek
  in album: Johann Strauß: Die Fledermaus
    type: MusicAlbum
    date published: 1968-01-01
  isrc code: DEF066804050
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T10:37:44+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0fc58cecd6cf561c59a0a67130f5b91ae0579b1334ce26790de4a457d072d63f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957124
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066804050
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:53:27Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc58cecd6cf561c59a0a67130f5b91ae0579b1334ce26790de4a457d072d63f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066804050.
    date published: 2026-07-08T03:53:27Z
  audio: Die Fledermaus / Act 1: Terzett: Oje, wie rührt mich dies
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 107.971
    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: 0.443
    additional property: Energy
      type: PropertyValue
      value: 0.295
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.974
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.367
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.322
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.21
    additional property: Key Name
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      value: C
    additional property: Mode Name
      type: PropertyValue
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Franz Lehár: Die lustige Witwe
type: MusicAlbum
date published: 1968-01-01
track: The Merry Widow (Die lustige Witwe) / Act 1: Einleitung
  type: MusicRecording
  duration: PT0M39S
  duration ms: 39240
  explicit: false
  by artist: Franz Lehár
  by artist: Günter Kallmann Chor
  by artist: Grosses Operetten Orchester
  by artist: Franz Marszalek
  by artist: Gunter Kallmann Choir
  in album: Franz Lehár: Die lustige Witwe
    type: MusicAlbum
    date published: 1968-01-01
  genre: opera
  isrc code: DEF066814720
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T11:05:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x090c8a193963e2b49bd90d028efc68ae63e951f963a2cb43ff07b061dde96d10
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957020
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957020
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066814720
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T09:18:01Z
  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 0x090c8a193963e2b49bd90d028efc68ae63e951f963a2cb43ff07b061dde96d10. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/DEF066814720.
    date published: 2026-07-07T09:18:01Z
  audio: The Merry Widow (Die lustige Witwe) / Act 1: Einleitung
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.181
    additional property: Energy
      type: PropertyValue
      value: 0.351
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.436
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.012
    additional property: Liveness
      type: PropertyValue
      value: 0.854
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.206
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.707
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: The Merry Widow (Die lustige Witwe) / Act 1: Wenn Beifall dieser Abend findet
track: The Merry Widow (Die lustige Witwe) / Act 2: Intermezzo
  type: MusicRecording
  duration: PT1M35S
  duration ms: 95386
  explicit: false
  by artist: Franz Lehár
  by artist: Grosses Operetten Orchester
  by artist: Franz Marszalek
  in album: Franz Lehár: Die lustige Witwe
    type: MusicAlbum
    date published: 1968-01-01
  genre: opera
  isrc code: DEF066810600
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T00:23:45+00:00
  additional property: CopyrightChainExplorerURL
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957124
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066810600
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:53:27Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0f29375a947a5baf56e832e6894aa135342fa2c982a9e94f46951c04de22d0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066810600.
    date published: 2026-07-08T03:53:27Z
  audio: The Merry Widow (Die lustige Witwe) / Act 2: Intermezzo
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.409
    additional property: Energy
      type: PropertyValue
      value: 0.139
    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
      value: 0.811
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.427
    additional property: Liveness
      type: PropertyValue
      value: 0.141
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.393
    additional property: Loudness (dB)
      type: PropertyValue
      value: -21.042
    additional property: Key Name
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      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: The Merry Widow (Die lustige Witwe) / Act 2: Komm in den kleinen Pavillon
  type: MusicRecording
  duration: PT3M19S
  duration ms: 199000
  explicit: false
  by artist: Franz Lehár
  by artist: Heinz Hoppe
  by artist: Lucia Popp
  by artist: Grosses Operetten Orchester
  by artist: Franz Marszalek
  in album: Franz Lehár: Die lustige Witwe
    type: MusicAlbum
    date published: 1968-01-01
  genre: opera
  isrc code: DEF066810610
  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
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track: The Merry Widow (Die lustige Witwe) / Act 2: Walzer
track: The Merry Widow (Die lustige Witwe) / Act 3: Grisettenlied
track: The Merry Widow (Die lustige Witwe) / Act 3: Duett: "Lippen schweigen"
track: The Merry Widow (Die lustige Witwe) / Act 2: Weibermarsch

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498129ce205ae952fbd747166b927c7f3de77500b5779feec3b50caf430599c9. 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/DEF066810610.
date published: 2026-07-08T03:22:41Z

The Merry Widow (Die lustige Witwe) / Act 2: Komm in den kleinen Pavillon
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The Merry Widow (Die lustige Witwe) / Act 2: Walzer
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by artist: Grosses Operetten Orchester
by artist: Franz Marszalek
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genre: opera
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: The Merry Widow (Die lustige Witwe) / Act 2: Walzer
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The Merry Widow (Die lustige Witwe) / Act 3: Grisettenlied
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by artist: Lucia Popp
by artist: Grosses Operetten Orchester
by artist: Franz Marszalek
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: The Merry Widow (Die lustige Witwe) / Act 3: Grisettenlied
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The Merry Widow (Die lustige Witwe) / Act 3: Duett: "Lippen schweigen"
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by artist: Grosses Operetten Orchester
by artist: Franz Marszalek
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: The Merry Widow (Die lustige Witwe) / Act 3: Duett: "Lippen schweigen"
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Countess Maritza
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Fritz Wunderlich: Arias from the 20th Century (Live)
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Wagner: Les maîtres chanteurs de Nuremberg (Mono Version)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T05:09:12Z
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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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  subject of: OpenTimestamps Proof of Existence
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track: Die Fledermaus: Overture
track: Symphony No. 5 in C Minor, Op. 67: II. Andante con moto
track: Symphony No. 5 in C Minor, Op. 67: III. Allegro
track: Symphony No. 5 in C Minor, Op. 67: IV. Allegro
track: Symphony No. 7 in A Major, Op. 92: I. Poco sostenuto - Vivace
track: Symphony No. 8 in B Minor, D. 759 "Unfinished": I. Allegro moderato
track: Symphony No. 7 in A Major, Op. 92: II. Allegretto
track: Symphony No. 7 in A Major, Op. 92: III. Presto - Assai meno presto
track: Symphony No. 7 in A Major, Op. 92: IV. Allegro con brio

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

OpenTimestamps Proof of Existence
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date published: 2026-07-08T08:56:20Z

Symphony No. 3 in D Major, D. 200: I. Adagio maestoso - Allegro con brio
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Die Fledermaus: Overture
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Symphony No. 5 in C Minor, Op. 67: II. Andante con moto
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subject of: OpenTimestamps Proof of Existence
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Symphony No. 5 in C Minor, Op. 67: III. Allegro
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Symphony No. 5 in C Minor, Op. 67: IV. Allegro
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  date published: 2026-07-08T03:20:19Z
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Symphony No. 7 in A Major, Op. 92: I. Poco sostenuto - Vivace
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  date published: 2026-07-08T08:56:20Z
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Symphony No. 8 in B Minor, D. 759 "Unfinished": I. Allegro moderato
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  date published: 2026-07-08T03:53:27Z
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T11:38:34Z
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Orchestre de l'Opéra de Lyon
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Festival Offenbach
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OpenTimestamps Proof of Existence
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date published: 2026-07-02T11:38:34Z

Offenbach: Les Brigands: Ouverture
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    date published: 2026-07-08T03:20:19Z
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC5700100
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-02T03:55:08Z
  audio: Orff: Der Mond: "So brachte Petrus die Toten zur Ruh" (Erzähler)
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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Ach, ich hab' in meinem Herzen
type: MusicAlbum
date published: 2009-06-07
track: Schwarzer Peter: Ach ich hab' in meinem Herzen
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  by artist: Rudolf Schock mit den Schaumburger Märchensängern
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5692069cc29405c4e4b9a966d4a1fe2e81671bd8a85bc0a67444322418e063a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEU240824073.
    date published: 2026-07-02T03:55:08Z
  audio: Schwarzer Peter: Ach ich hab' in meinem Herzen
    type: AudioObject
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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Johann Strauss Jr.: Wiener Blut (QS)
type: MusicAlbum
date published: 1975-01-01
track: Wiener Blut (Operetta) / Act 2: Wiener Blut
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  duration ms: 331933
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  by artist: Johann Strauss II
  by artist: René Kollo
  by artist: Ingeborg Hallstein
  by artist: Die Schonbrunner Schrammeln
  by artist: Symphonie-Orchester Graunke
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  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
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  additional property: OTSBitcoinBlockVerifyURL
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-08T03:53:27Z
  audio: Wiener Blut (Operetta) / Act 2: Wiener Blut
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    additional property: Danceability
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Valence (Positivity)
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Best of Operette
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date published: 2012-01-01
track: Das Land des Lächelns - Arr. Bert Grund / Act 2: Dein ist mein ganzes Herz
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  by artist: René Kollo
  by artist: Radio-Sinfonieorchester Stuttgart
  by artist: Wolfgang Ebert
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-08T03:53:27Z
  audio: Das Land des Lächelns - Arr. Bert Grund / Act 2: Dein ist mein ganzes Herz
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    additional property: Mode (Major/Minor)
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track: Liebe du Himmel auf Erden
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  by artist: Anna Maria Kaufmann
  by artist: Wiener Symphoniker
  by artist: Daniel Lipton
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    type: MusicAlbum
    date published: 2012-01-01
  genre: opera
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
  audio: Liebe du Himmel auf Erden
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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track: Die Fledermaus / Act 2: "Mein Herr Marquis"
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  duration: PT3M39S
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  by artist: Johann Strauss II
  by artist: Edita Gruberova
  by artist: Vienna State Opera Chorus
  by artist: Wiener Philharmoniker
  by artist: André Previn
  in album: Best of Operette
    type: MusicAlbum
    date published: 2012-01-01
  isrc code: NLA508901832
  additional property: CopyrightID
  additional property: CopyrightStatus
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  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: Die Fledermaus / Act 2: "Mein Herr Marquis"
track: Die Fledermaus / Act 1: Nr.3 Duett: "Komm mit mir zum Souper"
track: Draussen in Sievering (Arr. Stalla)
track: Gräfin Mariza: ''Wenn es Abend wird - Grüß mir mein Wien"
track: Wiener Blut (Operetta) / Act 2: Wiener Blut
track: Die lustige Witwe / Act 1: "Also Njegus, hier bin ich und wo ist das Vaterland?" - "O Vaterland"
track: Maske in Blau: Schau einer schöne Frau nicht zu tief in die Augen
track: Boccaccio: Hab' ich nur deine Liebe
track: Der Zigeunerbaron / Act 2: Duet: Wer uns getraut
track: Ein Walzertraum - Operetta In 3 Acts: Piccolo-Duett
track: Der Graf von Luxembourg, Operetta in 3 Acts / Act 2: Sind Sie von Sinnen, Herr Baron?...Lieber Freund

CopyrightChainExplorerURL
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OTSHash
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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value: https://blockstream.info/api/block-height/957145

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508901832

OTSTimestamp
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value: 2026-07-08T08:56:20Z

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 0xf8cfd4e07ce30c93359f8bd17ab114a92dcbba250a195a7083a2cef334f8afc6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508901832.
date published: 2026-07-08T08:56:20Z

Die Fledermaus / Act 2: "Mein Herr Marquis"
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additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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Die Fledermaus / Act 1: Nr.3 Duett: "Komm mit mir zum Souper"
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duration: PT3M18S
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by artist: Johann Strauss II
by artist: Bernd Weikl
by artist: Hermann Prey
by artist: Bavarian State Orchestra
by artist: Carlos Kleiber
in album: Best of Operette
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additional property: CopyrightStatus
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-08T03:53:27Z
audio: Die Fledermaus / Act 1: Nr.3 Duett: "Komm mit mir zum Souper"
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Draussen in Sievering (Arr. Stalla)
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by artist: Eva Lind
by artist: Vienna Volksoper Orchestra
by artist: Franz Bauer-Theussl
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Draussen in Sievering (Arr. Stalla)
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Gräfin Mariza: ''Wenn es Abend wird - Grüß mir mein Wien"
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duration: PT2M39S
duration ms: 159093
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by artist: Fritz Wunderlich
by artist: Vienna Volksoper Orchestra
by artist: Robert Stolz
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genre: fado
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Gräfin Mariza: ''Wenn es Abend wird - Grüß mir mein Wien"
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Wiener Blut (Operetta) / Act 2: Wiener Blut
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duration: PT5M32S
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by artist: Johann Strauss II
by artist: René Kollo
by artist: Ingeborg Hallstein
by artist: Die Schonbrunner Schrammeln
by artist: Symphonie-Orchester Graunke
by artist: Anton Paulik
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Wiener Blut (Operetta) / Act 2: Wiener Blut
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Die lustige Witwe / Act 1: "Also Njegus, hier bin ich und wo ist das Vaterland?" - "O Vaterland"
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duration: PT2M14S
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by artist: Boje Skovhus
by artist: Wiener Philharmoniker
by artist: John Eliot Gardiner
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genre: opera
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Die lustige Witwe / Act 1: "Also Njegus, hier bin ich und wo ist das Vaterland?" - "O Vaterland"
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Maske in Blau: Schau einer schöne Frau nicht zu tief in die Augen
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duration: PT2M52S
duration ms: 172573
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by artist: Fred Raymond
by artist: Herbert Ernst Groh
by artist: Antonia Fahberg
by artist: Günter Kallmann Chor
by artist: Grosses Operetten Orchester
by artist: Franz Marszalek
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Maske in Blau: Schau einer schöne Frau nicht zu tief in die Augen
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Boccaccio: Hab' ich nur deine Liebe
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duration ms: 167866
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by artist: Renate Holm
by artist: Werner Krenn
by artist: Vienna Volksoper Orchestra
by artist: Anton Paulik
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genre: late-romantic-era
genre: operetta
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Boccaccio: Hab' ich nur deine Liebe
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Der Zigeunerbaron / Act 2: Duet: Wer uns getraut
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duration: PT4M29S
duration ms: 269720
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by artist: Renate Holm
by artist: Werner Krenn
by artist: Vienna Volksoper Orchestra
by artist: Anton Paulik
in album: Best of Operette
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  date published: 2012-01-01
isrc code: GBF077041201
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerifyInstructions
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Klemperer in Cologne, Vol.14: Mozart, Don Giovanni (Historical Recording)
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Lehár: Paganini
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track: Gräfin Mariza - Operetta in 3 Acts: Braunes Mädel von der Puszta
track: Gräfin Mariza - Operetta in 3 Acts: Grüß mir mein Wien
track: Gräfin Mariza - Operetta in 3 Acts: Komm mit nach Varasdin
track: The Gypsy Princess (Die Csárdásfürstin): "Ganz ohne Weiber geht die Chose nicht"
track: The Gypsy Princess (Die Csárdásfürstin): "Tanzen möcht' ich... Tausend kleine Engel singen"
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additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:24:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9c1f325de668dba182bb4c494f4abbad2da1629e6a1c9a8d95e14651ab66ef67
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/DEF066519710
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 0x9c1f325de668dba182bb4c494f4abbad2da1629e6a1c9a8d95e14651ab66ef67. 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/DEF066519710.
  date published: 2026-07-08T03:22:41Z
audio: Gräfin Mariza - Operetta in 3 Acts: Grüß mir mein Wien
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.158
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.278
  additional property: Energy
    type: PropertyValue
    value: 0.353
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.934
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.443
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.297
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.356
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Gräfin Mariza - Operetta in 3 Acts: Komm mit nach Varasdin
type: MusicRecording
duration: PT2M9S
duration ms: 129706
explicit: false
by artist: Emmerich Kálmán
by artist: Herta Talmar
by artist: Peter Alexander
by artist: Grosses Operetten Orchester
by artist: Franz Marszalek
in album: Gräfin Mariza - Die Csárdásfürstin - Die Zirkusprinzessin
  type: MusicAlbum
  date published: 1993-01-01
genre: fado
isrc code: DEF066509990
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T14:39:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe73bc4044477a3f73574ddc305ccef2010cd90d619e2914651201d9050f5a76f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956312
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066509990
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73bc4044477a3f73574ddc305ccef2010cd90d619e2914651201d9050f5a76f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066509990.
  date published: 2026-07-02T05:09:12Z
audio: Gräfin Mariza - Operetta in 3 Acts: Komm mit nach Varasdin
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.18
  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: 0.52
  additional property: Energy
    type: PropertyValue
    value: 0.387
  additional property: Speechiness
    type: PropertyValue
    value: 0.081
  additional property: Acousticness
    type: PropertyValue
    value: 0.774
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.731
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.811
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.274
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

The Gypsy Princess (Die Csárdásfürstin): "Ganz ohne Weiber geht die Chose nicht"
type: MusicRecording
duration: PT1M21S
duration ms: 81840
explicit: false
by artist: Emmerich Kálmán
by artist: Willy Hofmann
by artist: Renate Holm
by artist: Grosses Operetten Orchester
by artist: Franz Marszalek
in album: Gräfin Mariza - Die Csárdásfürstin - Die Zirkusprinzessin
  type: MusicAlbum
  date published: 1993-01-01
genre: fado
isrc code: DEF065900450
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T05:18:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x98e9d674f6b5cd3b74def4eb70c6f9cac5b9af81315d20328788b317ffe9fbaf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF065900450
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e9d674f6b5cd3b74def4eb70c6f9cac5b9af81315d20328788b317ffe9fbaf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF065900450.
  date published: 2026-07-02T03:55:08Z
audio: The Gypsy Princess (Die Csárdásfürstin): "Ganz ohne Weiber geht die Chose nicht"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.14
  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: 0.664
  additional property: Energy
    type: PropertyValue
    value: 0.468
  additional property: Speechiness
    type: PropertyValue
    value: 0.084
  additional property: Acousticness
    type: PropertyValue
    value: 0.828
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.156
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.84
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.408
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

The Gypsy Princess (Die Csárdásfürstin): "Tanzen möcht' ich... Tausend kleine Engel singen"
type: MusicRecording
duration: PT2M18S
duration ms: 138600
explicit: false
by artist: Emmerich Kálmán
by artist: Willy Hofmann
by artist: Renate Holm
by artist: Herta Talmar
by artist: Fritz Wunderlich
by artist: Grosses Operetten Orchester
by artist: Franz Marszalek
in album: Gräfin Mariza - Die Csárdásfürstin - Die Zirkusprinzessin
  type: MusicAlbum
  date published: 1993-01-01
genre: fado
isrc code: DEF065900520
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:03:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa3c36abe20fd8fc3155b1ce654e0b90eab451d5885d86c1da22d15e5faa9c16a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF065900520
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c36abe20fd8fc3155b1ce654e0b90eab451d5885d86c1da22d15e5faa9c16a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF065900520.
  date published: 2026-07-08T08:56:20Z
audio: The Gypsy Princess (Die Csárdásfürstin): "Tanzen möcht' ich... Tausend kleine Engel singen"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.676
  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: 0.329
  additional property: Energy
    type: PropertyValue
    value: 0.345
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.686
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.343
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.29
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.206
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Zirkusprinzessin - operetta in 3 Acts: Einleitung - Wieder hinaus ins strahlende Licht - Zwei Märchenaugen
type: MusicRecording
duration: PT3M55S
duration ms: 235533
explicit: false
by artist: Emmerich Kálmán
by artist: Reinhold Bartel
by artist: Chor
by artist: Grosses Operetten Orchester
by artist: Franz Marszalek
in album: Gräfin Mariza - Die Csárdásfürstin - Die Zirkusprinzessin
  type: MusicAlbum
  date published: 1993-01-01
genre: fado
isrc code: DEF066617180
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:49:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd6ac7a3189816177edf2d651dc5521713e6d6ac84297fc00e91e9e788194bb88
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066617180
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ac7a3189816177edf2d651dc5521713e6d6ac84297fc00e91e9e788194bb88. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066617180.
  date published: 2026-07-08T03:53:27Z
audio: Die Zirkusprinzessin - operetta in 3 Acts: Einleitung - Wieder hinaus ins strahlende Licht - Zwei Märchenaugen
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.991
  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: 0.311
  additional property: Energy
    type: PropertyValue
    value: 0.318
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.895
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.715
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.14
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.299
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Zirkusprinzessin - operetta in 3 Acts: Wo ist der Himmel so blau wie in Wien
type: MusicRecording
duration: PT1M48S
duration ms: 108066
explicit: false
by artist: Emmerich Kálmán
by artist: Reinhold Bartel
by artist: Chor
by artist: Grosses Operetten Orchester
by artist: Franz Marszalek
in album: Gräfin Mariza - Die Csárdásfürstin - Die Zirkusprinzessin
  type: MusicAlbum
  date published: 1993-01-01
genre: fado
isrc code: DEF066617220
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:40:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1a0bd2516f2702577e26e712d25cc103eebfea7bda8d5cdcde9afe2377f19573
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/DEF066617220
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 0x1a0bd2516f2702577e26e712d25cc103eebfea7bda8d5cdcde9afe2377f19573. 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/DEF066617220.
  date published: 2026-07-08T03:22:41Z
audio: Die Zirkusprinzessin - operetta in 3 Acts: Wo ist der Himmel so blau wie in Wien
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.492
  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: 0.394
  additional property: Energy
    type: PropertyValue
    value: 0.297
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.849
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.151
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.267
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.498
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Zirkusprinzessin - operetta in 3 Acts: Husarenmarsch - Mädel gib acht!
type: MusicRecording
duration: PT1M12S
duration ms: 72800
explicit: false
by artist: Emmerich Kálmán
by artist: Reinhold Bartel
by artist: Willy Hofmann
by artist: Chor
by artist: Grosses Operetten Orchester
by artist: Franz Marszalek
in album: Gräfin Mariza - Die Csárdásfürstin - Die Zirkusprinzessin
  type: MusicAlbum
  date published: 1993-01-01
genre: fado
isrc code: DEF066617240
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T18:56:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb6629a976c3c18b0756c82447a9a8ea978f2e5a62f30fea02977bd462e4f9419
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066617240
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6629a976c3c18b0756c82447a9a8ea978f2e5a62f30fea02977bd462e4f9419. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF066617240.
  date published: 2026-07-08T03:53:27Z
audio: Die Zirkusprinzessin - operetta in 3 Acts: Husarenmarsch - Mädel gib acht!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.704
  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: 0.66
  additional property: Energy
    type: PropertyValue
    value: 0.566
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
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Die Zirkusprinzessin - operetta in 3 Acts: Liese
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by artist: Rita Bartos
by artist: Willy Hofmann
by artist: Reinhold Bartel
by artist: Chor
by artist: Grosses Operetten Orchester
by artist: Franz Marszalek
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genre: fado
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Die Zirkusprinzessin - operetta in 3 Acts: Liese
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Es muss was Wunderbares sein - Berühmte Operetten-Duette
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track: Das Land des Lächelns: Wer hat die Liebe uns ins Herz gesenkt
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
  audio: Das Land des Lächelns: Wer hat die Liebe uns ins Herz gesenkt
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track: Im weißen Rössl: Es muss was Wunderbares sein
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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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track: Die lustige Witwe: Lippen schweigen
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  subject of: OpenTimestamps Proof of Existence
  audio: Die lustige Witwe: Lippen schweigen
track: Der Vogelhändler: Schenkt man sich Rosen in Tirol
track: Wiener Blut: Das Eine kann ich nicht verzeih'n - Ich war ein echtes Wiener Blut - Wiener Blut, Wiener Blut
track: Gräfin Mariza: Einmal möcht' ich wieder tanzen

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb72488f448ff342f513fa7878608ae7df203e5d5040e7daaddc7a5f42e19f1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE476700078.
date published: 2026-07-08T03:53:27Z

Die lustige Witwe: Lippen schweigen
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Der Vogelhändler: Schenkt man sich Rosen in Tirol
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by artist: Rudolf Schock
by artist: Erika Köth
by artist: Frank Fox
in album: Es muss was Wunderbares sein - Berühmte Operetten-Duette
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Der Vogelhändler: Schenkt man sich Rosen in Tirol
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Wiener Blut: Das Eine kann ich nicht verzeih'n - Ich war ein echtes Wiener Blut - Wiener Blut, Wiener Blut
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by artist: Robert Stolz
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Wiener Blut: Das Eine kann ich nicht verzeih'n - Ich war ein echtes Wiener Blut - Wiener Blut, Wiener Blut
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Gräfin Mariza: Einmal möcht' ich wieder tanzen
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Gräfin Mariza: Einmal möcht' ich wieder tanzen
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Strauss II: Die Fledermaus (Excerpts) [Live]
type: MusicAlbum
date published: 2021-01-01

Korngold: Die tote Stadt, Op. 12
type: MusicAlbum
date published: 2021-05-28

Mozart: Le nozze di Figaro (Sung in German), K. 492 [Recorded 1950]
type: MusicAlbum
date published: 2015-03-01

Carl Orff: Die Kluge
type: MusicAlbum
date published: 2015

Peter Cornelius: Der Barbier von Bagdad (1957), Volume 2
type: MusicAlbum
date published: 2013-03-20

Wagner: Die Meistersinger von Nürnberg, WWV 96 (Excerpts) [Live]
type: MusicAlbum
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The Gypsy Baron
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Emmerich Kálmán: Gräfin Mariza (QS)
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Kurt Eichhorn conducts Carl Orff
type: MusicAlbum
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
  audio: Carmina Burana: O Fortuna
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track: Carmina Burana: Fortune plango vulnera
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
  audio: Carmina Burana: Fortune plango vulnera
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  subject of: OpenTimestamps Proof of Existence
  audio: Carmina Burana: Ecce gratum
track: Carmina Burana: Amor volat undique
track: Carmina Burana: Circa mea pectora
track: Carmina Burana: In trutina

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a733da3c0da3f41ad93be3d192522bafd4839e6729705663f21e570ce3ea464. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE477300014.
date published: 2026-07-08T03:53:27Z

Carmina Burana: Ecce gratum
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Carmina Burana: Amor volat undique
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
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Carmina Burana: Circa mea pectora
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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audio: Carmina Burana: Circa mea pectora
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Carmina Burana: In trutina
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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Offenbach: Orpheus in der Unterwelt
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track: Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Zweiter Akt: Drittes Bild: Entr'acte (Orchester)
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  by artist: Adolf Dallapozza/Gisela Litz/Grit van Jüten/Theo Lingen/Ferry Gruber /Kari Lövaas/Brigitte Lindner /Chor der Kölner Oper/Philharmonia Hungarica/Willy Mattes/Anneliese Rothenberger
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957122
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC628700777
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:39:04Z
  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 0xfa459619deb94044831e6f9ec06fd66122b53b4b9dbad28f7a7752787b50ff41. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC628700777.
    date published: 2026-07-08T03:39:04Z
  audio: Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Zweiter Akt: Drittes Bild: Entr'acte (Orchester)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 116.592
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.525
    additional property: Energy
      type: PropertyValue
      value: 0.282
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.934
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.817
    additional property: Liveness
      type: PropertyValue
      value: 0.138
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.523
    additional property: Loudness (dB)
      type: PropertyValue
      value: -20.858
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster): Ouvertüre (Orchester)
  type: MusicRecording
  duration: PT8M53S
  duration ms: 533426
  explicit: false
  by artist: Jacques Offenbach
  by artist: Adolf Dallapozza/Gisela Litz/Grit van Jüten/Theo Lingen/Ferry Gruber /Kari Lövaas/Brigitte Lindner /Chor der Kölner Oper/Philharmonia Hungarica/Willy Mattes/Anneliese Rothenberger
  by artist: Willy Mattes
  by artist: Philharmonia Hungarica
  in album: Offenbach: Orpheus in der Unterwelt
    type: MusicAlbum
    date published: 1978
  genre: classical
  genre: german-romanticism
  genre: late-romantic-era
  genre: french-opera
  genre: french-romanticism
  genre: operetta
  isrc code: DEC628700759
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T06:40:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x60430d4b2b39f6c903bf8af3ff713c3973e14271678bb69ef2dd2c60de403beb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956894
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956894
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC628700759
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T07:53:57Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60430d4b2b39f6c903bf8af3ff713c3973e14271678bb69ef2dd2c60de403beb. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC628700759.
    date published: 2026-07-06T07:53:57Z
  audio: Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster): Ouvertüre (Orchester)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 106.733
    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: 0.184
    additional property: Energy
      type: PropertyValue
      value: 0.228
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    additional property: Acousticness
      type: PropertyValue
      value: 0.907
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.569
    additional property: Liveness
      type: PropertyValue
      value: 0.36
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.172
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.525
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Erster Akt: 1. Bild: Wer bin ich (Die öffentliche Meinung)
  type: MusicRecording
  duration: PT1M12S
  duration ms: 72893
  explicit: false
  by artist: Jacques Offenbach
  by artist: Adolf Dallapozza/Gisela Litz/Grit van Jüten/Theo Lingen/Ferry Gruber /Kari Lövaas/Brigitte Lindner /Chor der Kölner Oper/Philharmonia Hungarica/Willy Mattes/Anneliese Rothenberger
  by artist: Willy Mattes
  by artist: Philharmonia Hungarica
  in album: Offenbach: Orpheus in der Unterwelt
    type: MusicAlbum
    date published: 1978
  genre: classical
  genre: german-romanticism
  genre: late-romantic-era
  genre: french-opera
  genre: french-romanticism
  genre: operetta
  isrc code: DEC628700760
  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: Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Erster Akt: 1. Bild: Wer bin ich (Die öffentliche Meinung)
track: Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Zweiter Akt: 4. Bild: Gott Pluto lebe hoch (Chor) & Dialog
track: Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Erster Akt: 1. Bild: Der Tod will mir als Freund erscheinen (Eurydike)
track: Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Erster Akt: 1. Bild: Komm, komm, folg' der Ehre (Die öffentliche Meinung - Orpheus)
track: Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Erster Akt: 2. Bild: Dialog mit Melodram
track: Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Erster Akt: 2. Bild: Dialog
track: Offenbach: Orpheus in der Unterwelt, Act 2: "Ich glaubte, hier etwas zu fühlen" (Eurydike, Jupiter)

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T05:28:08+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x35edf77a03bb0af30b9616f921c140d15339546ee65c988e79ff195c534b3c2a

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957120

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

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC628700760

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

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35edf77a03bb0af30b9616f921c140d15339546ee65c988e79ff195c534b3c2a. 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/DEC628700760.
date published: 2026-07-08T03:22:41Z

Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Erster Akt: 1. Bild: Wer bin ich (Die öffentliche Meinung)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 115.33
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: 0.498
additional property: Energy
  type: PropertyValue
  value: 0.046
additional property: Speechiness
  type: PropertyValue
  value: 0.088
additional property: Acousticness
  type: PropertyValue
  value: 0.849
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.104
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.564
additional property: Loudness (dB)
  type: PropertyValue
  value: -28.495
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Major

Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Zweiter Akt: 4. Bild: Gott Pluto lebe hoch (Chor) & Dialog
type: MusicRecording
duration: PT2M39S
duration ms: 159000
explicit: false
by artist: Jacques Offenbach
by artist: Adolf Dallapozza/Gisela Litz/Grit van Jüten/Theo Lingen/Ferry Gruber /Kari Lövaas/Brigitte Lindner /Chor der Kölner Oper/Philharmonia Hungarica/Willy Mattes/Anneliese Rothenberger
by artist: Willy Mattes
by artist: Philharmonia Hungarica
in album: Offenbach: Orpheus in der Unterwelt
  type: MusicAlbum
  date published: 1978
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
isrc code: DEC628700782
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T21:28:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1c44cd0eb50038994cd5232df59e9b40a7d36908ae812eff5e9de93e4b5a9b10
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC628700782
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c44cd0eb50038994cd5232df59e9b40a7d36908ae812eff5e9de93e4b5a9b10. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC628700782.
  date published: 2026-07-08T03:53:27Z
audio: Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Zweiter Akt: 4. Bild: Gott Pluto lebe hoch (Chor) & Dialog
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.432
  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: 0.458
  additional property: Energy
    type: PropertyValue
    value: 0.332
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.899
  additional property: Liveness
    type: PropertyValue
    value: 0.396
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.243
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.985
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Erster Akt: 1. Bild: Der Tod will mir als Freund erscheinen (Eurydike)
type: MusicRecording
duration: PT2M8S
duration ms: 128026
explicit: false
by artist: Jacques Offenbach
by artist: Adolf Dallapozza/Gisela Litz/Grit van Jüten/Theo Lingen/Ferry Gruber /Kari Lövaas/Brigitte Lindner /Chor der Kölner Oper/Philharmonia Hungarica/Willy Mattes/Anneliese Rothenberger
by artist: Willy Mattes
by artist: Philharmonia Hungarica
in album: Offenbach: Orpheus in der Unterwelt
  type: MusicAlbum
  date published: 1978
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
isrc code: DEC628700767
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:30:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb2cc25deceaa5207050ef408f47167b0602ef56badbce5caad39479d391bc956
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/DEC628700767
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 0xb2cc25deceaa5207050ef408f47167b0602ef56badbce5caad39479d391bc956. 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/DEC628700767.
  date published: 2026-07-08T03:20:19Z
audio: Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Erster Akt: 1. Bild: Der Tod will mir als Freund erscheinen (Eurydike)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.34
  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: 0.231
  additional property: Energy
    type: PropertyValue
    value: 0.11
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.364
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.163
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.735
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Erster Akt: 1. Bild: Komm, komm, folg' der Ehre (Die öffentliche Meinung - Orpheus)
type: MusicRecording
duration: PT2M54S
duration ms: 174866
explicit: false
by artist: Jacques Offenbach
by artist: Adolf Dallapozza/Gisela Litz/Grit van Jüten/Theo Lingen/Ferry Gruber /Kari Lövaas/Brigitte Lindner /Chor der Kölner Oper/Philharmonia Hungarica/Willy Mattes/Anneliese Rothenberger
by artist: Willy Mattes
by artist: Philharmonia Hungarica
in album: Offenbach: Orpheus in der Unterwelt
  type: MusicAlbum
  date published: 1978
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
isrc code: DEC628700769
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:37:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x58a99a431583c4549f6d698ff06cd7e9b01f955e7641d8dc4e5b53f1e186ea0f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC628700769
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a99a431583c4549f6d698ff06cd7e9b01f955e7641d8dc4e5b53f1e186ea0f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC628700769.
  date published: 2026-07-08T03:53:27Z
audio: Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Erster Akt: 1. Bild: Komm, komm, folg' der Ehre (Die öffentliche Meinung - Orpheus)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.747
  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: 0.429
  additional property: Energy
    type: PropertyValue
    value: 0.298
  additional property: Speechiness
    type: PropertyValue
    value: 0.111
  additional property: Acousticness
    type: PropertyValue
    value: 0.959
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.112
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.629
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.805
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Erster Akt: 2. Bild: Dialog mit Melodram
type: MusicRecording
duration: PT3M21S
duration ms: 201400
explicit: false
by artist: Jacques Offenbach
by artist: Adolf Dallapozza/Gisela Litz/Grit van Jüten/Theo Lingen/Ferry Gruber /Kari Lövaas/Brigitte Lindner /Chor der Kölner Oper/Philharmonia Hungarica/Willy Mattes/Anneliese Rothenberger
by artist: Willy Mattes
by artist: Philharmonia Hungarica
in album: Offenbach: Orpheus in der Unterwelt
  type: MusicAlbum
  date published: 1978
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
isrc code: DEC628700771
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC628700771
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0189bfd5482021beadc86153dd2d671518d1896cd848af3ac76fc1dd6aebd25f. 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/DEC628700771.
  date published: 2026-07-08T03:20:19Z
audio: Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Erster Akt: 2. Bild: Dialog mit Melodram
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  additional property: Danceability
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Erster Akt: 2. Bild: Dialog
type: MusicRecording
duration: PT0M39S
duration ms: 39960
explicit: false
by artist: Jacques Offenbach
by artist: Adolf Dallapozza/Gisela Litz/Grit van Jüten/Theo Lingen/Ferry Gruber /Kari Lövaas/Brigitte Lindner /Chor der Kölner Oper/Philharmonia Hungarica/Willy Mattes/Anneliese Rothenberger
by artist: Willy Mattes
by artist: Philharmonia Hungarica
in album: Offenbach: Orpheus in der Unterwelt
  type: MusicAlbum
  date published: 1978
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
isrc code: DEC628700773
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC628700773
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbee9490000d90891f27258e92858918ab437be14c3bc0e095cdd9f48e2048e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC628700773.
  date published: 2026-07-08T08:56:20Z
audio: Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Erster Akt: 2. Bild: Dialog
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  additional property: Danceability
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  additional property: Valence (Positivity)
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Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Erster Akt: 2. Bild: Dialog
type: MusicRecording
duration: PT0M33S
duration ms: 33533
explicit: false
by artist: Jacques Offenbach
by artist: Adolf Dallapozza/Gisela Litz/Grit van Jüten/Theo Lingen/Ferry Gruber /Kari Lövaas/Brigitte Lindner /Chor der Kölner Oper/Philharmonia Hungarica/Willy Mattes/Anneliese Rothenberger
by artist: Willy Mattes
by artist: Philharmonia Hungarica
in album: Offenbach: Orpheus in der Unterwelt
  type: MusicAlbum
  date published: 1978
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
isrc code: DEC628700775
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC628700775
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06daef8ed22ce201945f7e8295a8c9dfe7bf9919be96d7f0d076fc4fde79384a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC628700775.
  date published: 2026-07-08T08:56:20Z
audio: Orpheus in der Unterwelt · Operette in 2 Akten (1988 Digital Remaster), Erster Akt: 2. Bild: Dialog
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Lehar: Die lustige Witwe (Excerpts)
type: MusicAlbum
date published: 1967-02-21
track: Die lustige Witwe: Lippen schweigen
  type: MusicRecording
  duration: PT2M52S
  duration ms: 172866
  explicit: false
  by artist: Franz Lehár
  by artist: Rudolf Schock
  by artist: Margit Schramm
  by artist: Robert Stolz
  in album: Lehar: Die lustige Witwe (Excerpts)
    type: MusicAlbum
    date published: 1967-02-21
  genre: opera
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xcfb72488f448ff342f513fa7878608ae7df203e5d5040e7daaddc7a5f42e19f1
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE476700078
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb72488f448ff342f513fa7878608ae7df203e5d5040e7daaddc7a5f42e19f1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEE476700078.
    date published: 2026-07-02T03:55:08Z
  audio: Die lustige Witwe: Lippen schweigen
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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Icon: Rudolf Kempe
type: MusicAlbum
date published: 2010-08-09

Johann Strauss: Die Fledermaus (Highlights)
type: MusicAlbum
date published: 1976-01-01
track: Die Fledermaus: Overture
  type: MusicRecording
  duration: PT7M38S
  duration ms: 458573
  explicit: false
  by artist: Johann Strauss II
  by artist: Bavarian State Orchestra
  by artist: Carlos Kleiber
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    date published: 1976-01-01
  isrc code: DEF057530601
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    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0xb24865e756c52a61ccb9ecaac92c9023c6093dd2b7db1d0a312c7798ecc5342a
  additional property: OTSHash
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    type: PropertyValue
    value: 957145
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957145
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530601
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T08:56:20Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24865e756c52a61ccb9ecaac92c9023c6093dd2b7db1d0a312c7798ecc5342a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057530601.
    date published: 2026-07-08T08:56:20Z
  audio: Die Fledermaus: Overture
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 126.198
    additional property: Musical Key
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      value: 11
    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.391
    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
      value: 0.933
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.753
    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
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      value: 0.228
    additional property: Loudness (dB)
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track: Die Fledermaus / Act 3: Nr.16 Finale: "O Fledermaus, o Fledermaus"

La Luna
type: MusicAlbum
date published: 1999-04-06
track: Rusalka, Op. 114, B. 203: Lied der Rusalka an den Mond
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  duration: PT6M14S
  duration ms: 374640
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  by artist: Leontyne Price
  by artist: Nello Santi
  by artist: New Philharmonia Orchestra
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    type: MusicAlbum
    date published: 1999-04-06
  genre: classical
  genre: late-romantic-era
  genre: czech-classical
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    value: 2026-06-25T17:15:09+00:00
  additional property: CopyrightChainExplorerURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC17700117
  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134727119e8d07f78d1da0ebd07b640b367fa40a9cd75c47c7b851effbf7d80b. 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/USBC17700117.
    date published: 2026-07-08T03:20:19Z
  audio: Rusalka, Op. 114, B. 203: Lied der Rusalka an den Mond
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    additional property: Loudness (dB)
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