Friederike Sailer
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genre: opera
description: Friederike Sailer (20 February 1920 – June 1994) was a German soprano in opera and concert. She was a member of the Stuttgart Opera, later a voice teacher at the Musikhochschule Stuttgart. She perform
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followers: 42
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album: Mozart: Die Zauberflöte, K. 620 (Live)
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  date published: 2019-03-08
album: Classical Arias
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  date published: 2017-10-13
album: Operetta Arias
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  date published: 2017-09-08
  track: Giuditta: Freunde, das Leben ist lebenswert
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    by artist: Franz Lehár
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    in album: Operetta Arias
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      date published: 2017-09-08
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  track: Gräfin Mariza: Wenn es Abend wird (Grüß mir mein Wien)
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      date published: 2017-09-08
    popularity: 1
    genre: fado
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      date published: 2026-07-31T15:20:15Z
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album: Romantische Arien
album: Ferdinand Leitner Anniversary Edition
album: Sings Operetta & Opera Arias & Duets
album: Traumland Der Operette - Raritäten (Folge 2)
album: Beliebte Operettenmelodien
album: Vocal Recital: Wunderlich, Fritz - Kaiser, E. / Georgy-Engelhardt, G. / Katt, M. / Hasenpflug, C. / Berner, H. / Kowalski, L. (1953-1956)
album: Brahms: Zigeunerlieder, Op. 103 & Liebeslieder-Walzer, Op. 52 (Mono Version)
album: Rimsky-Korsakov: Das Märchen vom zar Saltan
album: Vivaldi for Beginners
album: Classical Chorus: Beethoven, Vivaldi & Purcell
album: Vivaldi: O qui coeli terraeque serenitas, Stabat mater & Gloria in D Major, RV 589 (Mono Version)
album: Bach : Oster-Oratorium, BWV 249 (Mono Version)
album: Franz Schubert: Essential Vocal Works
album: Les splendeurs de la musique sacrée, Vol. 5
album: Vivaldi in Film
album: Friederike Sailer / Choeurs de Radio Stuttgart et Orchestre Pro Musica de Stuttgart play: Michel Richard Delalande: De Profundis (Psaume 129), S 23
album: Friederike Sailer / Margarete Bence / Susi Lautenbacher play: Johann Sebastian Bach: "Kommt, eilet und laufet, ihr flüchtigen Füsse" - Oratorium zum Osterfest, BWV 249
album: Friederike Sailer / Susi Lautenbacher etc. / Stuttgarter Bach-Chor und Orchester / Marcel Couraud play: Johann Sebastian Bach: "Kommt, eilet und laufet, ihr flüchtigen Füsse" - Oratorium zum
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album: Hans Sachs
album: Vivaldi: Gloria, Stabat Mater & O qui coeli terraeque serenitas
album: Bach: Cantates, BWV 8 & 110 (Stereo Version)
album: Beethoven: Egmont, Op. 84 (Mono Version)
album: Beethoven: Egmont, Op. 84 & Symphony No. 1, Op. 21 (Mono Version)
album: Oster-Oratorium BWV 249
album: Magnificat BWV 243 & Kantate BWV 31
album: Brahms: Liebeslieder-Walzer, Op. 52 & 65 (Mono Version)
album: Choeurs et Orchestre Philarmonique "Pro Musica" de Stuttgart play: Antonio Vivaldi: Gloria
album: 100 Volkslieder
album: Vivaldi at Christmas
album: Antonio Vivaldi: Essential Vocal Works
album: 50 Best Of Volkslieder
album: Johann Sebastian Bach Osteroratorium/Easter Oratorio
album: 111 Vivaldi Masterpieces
album: 111 Schubert Masterpieces
album: Los Grandes de la Musica Clasica - Antonio Vivaldi Vol. 3
album: Fritz Wunderlich, Vol. 6 (1956)

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Romantische Arien
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Ferdinand Leitner Anniversary Edition
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Sings Operetta & Opera Arias & Duets
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Traumland Der Operette - Raritäten (Folge 2)
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date published: 2008-01-01

Beliebte Operettenmelodien
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track: Gasparone: Dunkelrote Rosen
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    date published: 2026-07-08T03:20:19Z
  audio: Gasparone: Dunkelrote Rosen
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track: Ungarische Hochzeit: Heimat, Dein Lieder
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  subject of: OpenTimestamps Proof of Existence
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track: Eine Nacht in Venedig: Komm in die Gondel
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track: Der Lustige Krieg, Act II: "Nur für Natur"
track: Der Obersteiger, Act II: "Sei nicht bös'"
track: Monika: Ein Walzer zu zweien
track: Paganini: Gern hab' ich die Frau'n geküsst
track: Gasparone: Komm, mia bella
track: Die Lustige Witwe: Es waren 2 Königskinder/Ich geh jetzt ins Maxims
track: Die Czardasfüsrstin, Act I: "Die Mädis vom Chantant"
track: Boccaccio, Act I: Hab' ich nur Deine Liebe
track: Im weissen Rössl, Akt I: "Es muss was Wunderbares sein"
track: Im weissen Rössl, Akt III: "Mein Liebeslied muss ein Walzer sein"
track: Die lustige Witwe: Wie die Blumen im Lenze erblüh'n/Ballsirenenwalzer
track: Die lustige Witwe: Lippen schweigen
track: Der Zigeunerbaron, Act I: Entry March
track: Gräfin Mariza: Wenn es Abend wird/Grüss mir die süßen, die reizenden Frauen
track: Gräfin Mariza: Ich warte auf das große Wunder/Machen wir's den Schwalben nach
track: Der Graf von Luxemburg, Act I: "Mein Ahnherr war der Graf von Luxemburg"
track: Der Graf von Luxemburg, Act I: "Bist Du's, lachendes Glück"
track: Ein Walzertraum: G'stellte Madeln
track: Die Fledermaus: So muss allein.../O je o je
track: Die Fledermaus, Akt II: Klänge der Heimat - Czardas
track: Du und Du Walzer, Op. 367
track: Leichte Kavallerie: Ouvertüre
track: Der Zigeunerbaron, Act I: "Ja das Schreiben und das Lesen"
track: Der Zigeunerbaron, Act I: Schatzwalzer
track: Simplicius: Lagerlust Polka
track: Schwarzwaldmädel: Bauernpolka
track: Der Bettelstudent, Act I: "Und da soll man noch galant sein"
track: Der Bettelstudent, Act II: "Ich setz' den Fall"

OTSHash
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OTSBitcoinBlock
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value: 960321

OTSBitcoinBlockVerifyURL
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value: https://blockstream.info/api/block-height/960321

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA580800349

OTSTimestamp
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value: 2026-07-30T22:27:30Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a707fc3dfd6265e246a8ff49e55f73ee28d56b0db4ddd5fc4f98c4377ecfc63. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA580800349 — a six-check JSON result.
date published: 2026-07-30T22:27:30Z

Eine Nacht in Venedig: Komm in die Gondel
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Der Lustige Krieg, Act II: "Nur für Natur"
type: MusicRecording
duration: PT3M16S
duration ms: 196053
explicit: false
by artist: Johann Strauss II
by artist: Stuttgart Philharmonic Orchestra
by artist: Fritz Mareczek
by artist: Fritz Wunderlich
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
isrc code: DEA580800559
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/960220
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA580800559
additional property: OTSTimestamp
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  value: 2026-07-30T07:28:30Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabd632b9897ee7601b623cbb62c7bd2956b0785d6cd090ea111bbf23121a02e. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA580800559 — a six-check JSON result.
  date published: 2026-07-30T07:28:30Z
audio: Der Lustige Krieg, Act II: "Nur für Natur"
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Der Obersteiger, Act II: "Sei nicht bös'"
type: MusicRecording
duration: PT2M22S
duration ms: 142960
explicit: false
by artist: Karl Zeller
by artist: Stuttgart Philharmonic Orchestra
by artist: Fritz Mareczek
by artist: Fritz Wunderlich
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
isrc code: USZDG0900717
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x19c03d07f6f0ed6a27eff189ee458ab9b41aeb39da4cd72055ed1f6d569df1f1
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZDG0900717
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c03d07f6f0ed6a27eff189ee458ab9b41aeb39da4cd72055ed1f6d569df1f1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZDG0900717 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Der Obersteiger, Act II: "Sei nicht bös'"
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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: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Instrumentalness
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Monika: Ein Walzer zu zweien
type: MusicRecording
duration: PT3M18S
duration ms: 198506
explicit: false
by artist: Nico Dostal
by artist: Stuttgart Philharmonic Orchestra
by artist: Friederike Sailer
by artist: Fritz Mareczek
by artist: Fritz Wunderlich
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
isrc code: USZDG0900725
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9893a730c3efd30c80be75afc40cc3f56c1f7894038c4846e7e9ef3b3c2391d0. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZDG0900725 — a six-check JSON result.
  date published: 2026-07-30T12:45:34Z
audio: Monika: Ein Walzer zu zweien
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Danceability
    type: PropertyValue
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  additional property: Speechiness
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Paganini: Gern hab' ich die Frau'n geküsst
type: MusicRecording
duration: PT3M7S
duration ms: 187800
explicit: false
by artist: Franz Lehár
by artist: Vienna State Opera Orchestra
by artist: Vienna State Opera Chorus
by artist: Franz Bauer-Theussl
by artist: Karl Terkal
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
genre: opera
isrc code: CAM460870152
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc8d3e54570cfb954b181d4d50e303ffbdf8394abab0736c09d8e2f6ff26d71. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870152 — a six-check JSON result.
  date published: 2026-07-30T12:45:34Z
audio: Paganini: Gern hab' ich die Frau'n geküsst
  type: AudioObject
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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
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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Gasparone: Komm, mia bella
type: MusicRecording
duration: PT3M12S
duration ms: 192693
explicit: false
by artist: Carl Millöcker
by artist: Orchestra of the Württemberg State Opera
by artist: Harry Pleva
by artist: Isy Cren
by artist: Jörn Wilsing
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
isrc code: DEA580900461
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA580900461
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dcdb569b004d4c7cd9cc4b6f364ac2b333a2b6dd878c82f6b550c4a6a11855a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA580900461 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Gasparone: Komm, mia bella
  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: 0.383
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
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Die Lustige Witwe: Es waren 2 Königskinder/Ich geh jetzt ins Maxims
type: MusicRecording
duration: PT3M23S
duration ms: 203306
explicit: false
by artist: Franz Lehár
by artist: Vienna Volksoper Orchestra
by artist: Lotte Rysanek
by artist: Vienna Volksoper Choir
by artist: Franz Bauer-Theussl
by artist: Kurt Equiluz
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
genre: opera
isrc code: CAM460870147
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x25a9cb3619511fbc8ecc6224009c7663356d28cc6d1f274ef752478e565dbcd1
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870147
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a9cb3619511fbc8ecc6224009c7663356d28cc6d1f274ef752478e565dbcd1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870147 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Die Lustige Witwe: Es waren 2 Königskinder/Ich geh jetzt ins Maxims
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.161
  additional property: Musical Key
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    value: 4
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.258
  additional property: Energy
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  additional property: Valence (Positivity)
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Die Czardasfüsrstin, Act I: "Die Mädis vom Chantant"
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duration: PT2M36S
duration ms: 156613
explicit: false
by artist: Emmerich Kálmán
by artist: Vienna State Opera Orchestra
by artist: Vienna State Opera Chorus
by artist: Franz Bauer-Theussl
by artist: Karl Terkal
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
genre: fado
isrc code: CAM460870142
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870142
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T15:42:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98767258c70730a7f0cc02466020b99e4a0c89a7a358f8aa749c720e67cd27e3. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870142 — a six-check JSON result.
  date published: 2026-07-30T15:42:38Z
audio: Die Czardasfüsrstin, Act I: "Die Mädis vom Chantant"
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Boccaccio, Act I: Hab' ich nur Deine Liebe
type: MusicRecording
duration: PT4M0S
duration ms: 240693
explicit: false
by artist: Franz von Suppé
by artist: Orchestra of the Württemberg State Opera
by artist: Sylvia Geszty
by artist: Harry Pleva
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
genre: late-romantic-era
genre: operetta
isrc code: DEA580800285
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA580800285
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T00:26:26Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe003d777baa71d0ffb23e7a943a25cbd0a5cd49c1dbace75a4c74bdb2aa3b8. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA580800285 — a six-check JSON result.
  date published: 2026-07-31T00:26:26Z
audio: Boccaccio, Act I: Hab' ich nur Deine Liebe
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  additional property: Tempo (BPM)
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  additional property: Acousticness
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Im weissen Rössl, Akt I: "Es muss was Wunderbares sein"
type: MusicRecording
duration: PT3M9S
duration ms: 189693
explicit: false
by artist: Ralph Benatzky
by artist: Vienna State Opera Orchestra
by artist: Lotte Rysanek
by artist: Vienna State Opera Chorus
by artist: Franz Bauer-Theussl
by artist: Karl Terkal
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
isrc code: CAM460870122
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T08:04:30Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x110ca1fcca82d3ab230d557ab1972f33736ba07e21429e60c8fb403bbe84d6d9. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870122 — a six-check JSON result.
  date published: 2026-07-30T08:04:30Z
audio: Im weissen Rössl, Akt I: "Es muss was Wunderbares sein"
  type: AudioObject
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Im weissen Rössl, Akt III: "Mein Liebeslied muss ein Walzer sein"
type: MusicRecording
duration: PT3M14S
duration ms: 194093
explicit: false
by artist: Ralph Benatzky
by artist: Vienna State Opera Orchestra
by artist: Lotte Rysanek
by artist: Vienna State Opera Chorus
by artist: Franz Bauer-Theussl
by artist: Karl Terkal
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
isrc code: CAM460870123
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:16:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870123
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816d3c9e3563dd512fec34341d0b2cf8ed80d960c6a125615b49ac1a676fc3ee. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870123 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Im weissen Rössl, Akt III: "Mein Liebeslied muss ein Walzer sein"
  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: Danceability
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Die lustige Witwe: Wie die Blumen im Lenze erblüh'n/Ballsirenenwalzer
type: MusicRecording
duration: PT4M6S
duration ms: 246280
explicit: false
by artist: Franz Lehár
by artist: Vienna State Opera Orchestra
by artist: Lotte Rysanek
by artist: Vienna State Opera Chorus
by artist: Franz Bauer-Theussl
by artist: Karl Terkal
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
genre: opera
isrc code: CAM460870145
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870145
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1b5410ca55f570f58126e295ccfa73c4ac04413ef725bcdcfa5b192bc8d0ab. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870145 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Die lustige Witwe: Wie die Blumen im Lenze erblüh'n/Ballsirenenwalzer
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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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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Die lustige Witwe: Lippen schweigen
type: MusicRecording
duration: PT2M56S
duration ms: 176333
explicit: false
by artist: Franz Lehár
by artist: Vienna State Opera Orchestra
by artist: Lotte Rysanek
by artist: Vienna State Opera Chorus
by artist: Erich Christ
by artist: Franz Bauer-Theussl
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
genre: opera
isrc code: CAM460870146
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/960095
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870146
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T11:07:37Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3eac293be8d186537c7943ebecb37a294eb0b9d0cd02de80ca88583c03754c. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870146 — a six-check JSON result.
  date published: 2026-07-29T11:07:37Z
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
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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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  additional property: Mode Name
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Der Zigeunerbaron, Act I: Entry March
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duration: PT2M51S
duration ms: 171213
explicit: false
by artist: Johann Strauss II
by artist: Vienna Opera Orchestra
by artist: Carl Michalski
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
isrc code: DEA580600743
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc552a39d8196cb87d091a3208d9f402029ec8f1ac4a5b39fe82796d419e60e70. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA580600743 — a six-check JSON result.
  date published: 2026-07-31T08:26:41Z
audio: Der Zigeunerbaron, Act I: Entry March
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Gräfin Mariza: Wenn es Abend wird/Grüss mir die süßen, die reizenden Frauen
type: MusicRecording
duration: PT3M16S
duration ms: 196026
explicit: false
by artist: Emmerich Kálmán
by artist: Vienna State Opera Orchestra
by artist: Vienna State Opera Chorus
by artist: Erich Christ
by artist: Franz Bauer-Theussl
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
genre: fado
isrc code: CAM460870143
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870143
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3d89c8751714dc7240ecff552e0b125d57dff3f95f34e15a066894925e42bd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870143 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Gräfin Mariza: Wenn es Abend wird/Grüss mir die süßen, die reizenden Frauen
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Gräfin Mariza: Ich warte auf das große Wunder/Machen wir's den Schwalben nach
type: MusicRecording
duration: PT4M0S
duration ms: 240186
explicit: false
by artist: Emmerich Kálmán
by artist: Vienna State Opera Orchestra
by artist: Lotte Rysanek
by artist: Vienna State Opera Chorus
by artist: Franz Bauer-Theussl
by artist: Karl Terkal
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
genre: fado
isrc code: CAM460870144
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870144
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06804c9f7229486dde0d4322e4cad6c3391743d789ff4dbfb71e964aa7f375ea. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870144 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Gräfin Mariza: Ich warte auf das große Wunder/Machen wir's den Schwalben nach
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  additional property: Musical Key
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Der Graf von Luxemburg, Act I: "Mein Ahnherr war der Graf von Luxemburg"
type: MusicRecording
duration: PT2M49S
duration ms: 169920
explicit: false
by artist: Franz Lehár
by artist: Vienna State Opera Orchestra
by artist: Vienna State Opera Chorus
by artist: Franz Bauer-Theussl
by artist: Karl Terkal
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
genre: opera
isrc code: CAM460870150
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/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870150
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3446f7e1c1aa26ee500472b728bd6a9906e78279e0a4484843940d34adf2fec. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870150 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: Der Graf von Luxemburg, Act I: "Mein Ahnherr war der Graf von Luxemburg"
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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: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Der Graf von Luxemburg, Act I: "Bist Du's, lachendes Glück"
type: MusicRecording
duration: PT2M53S
duration ms: 173146
explicit: false
by artist: Franz Lehár
by artist: Vienna State Opera Orchestra
by artist: Lotte Rysanek
by artist: Vienna State Opera Chorus
by artist: Franz Bauer-Theussl
by artist: Karl Terkal
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
genre: opera
isrc code: CAM460870151
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870151
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64191ae219c53011499899c8ec4e6f818deddebe30c4e83b3b8b04dc48cb741b. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870151 — a six-check JSON result.
  date published: 2026-07-30T21:35:24Z
audio: Der Graf von Luxemburg, Act I: "Bist Du's, lachendes Glück"
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Ein Walzertraum: G'stellte Madeln
type: MusicRecording
duration: PT2M47S
duration ms: 167906
explicit: false
by artist: Oscar Straus
by artist: Vienna State Opera Orchestra
by artist: Lotte Rysanek
by artist: Vienna State Opera Chorus
by artist: Franz Bauer-Theussl
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
isrc code: CAM460870154
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xd538985c40b9db088ca4a20c58b9702f6a101d14fdd25fd89bf2cda493486b21
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870154
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd538985c40b9db088ca4a20c58b9702f6a101d14fdd25fd89bf2cda493486b21. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM460870154 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: Ein Walzertraum: G'stellte Madeln
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Key Name
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Die Fledermaus: So muss allein.../O je o je
type: MusicRecording
duration: PT3M59S
duration ms: 239213
explicit: false
by artist: Johann Strauss II
by artist: Orchestra of the Württemberg State Opera
by artist: Harry Pleva
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
isrc code: DEA580800561
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/960334
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA580800561
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:19:15Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0293f624942cd7757271e544cb789afcb3347983880b56b97f666497488bbeb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA580800561 — a six-check JSON result.
  date published: 2026-07-31T02:19:15Z
audio: Die Fledermaus: So muss allein.../O je o je
  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: Danceability
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Die Fledermaus, Akt II: Klänge der Heimat - Czardas
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duration: PT4M20S
duration ms: 260226
explicit: false
by artist: Johann Strauss II
by artist: Orchestra of the Württemberg State Opera
by artist: Anton de Ridder
by artist: Sylvia Geszty
by artist: Harry Pleva
by artist: Isy Oren
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
isrc code: DEA580800554
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T17:29:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2d0109674106275e71fabd7bef47785c2de5b9c84269972ecfedeeb75465ab9e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960448
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960448
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA580800554
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T18:48:12Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0109674106275e71fabd7bef47785c2de5b9c84269972ecfedeeb75465ab9e. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA580800554 — a six-check JSON result.
  date published: 2026-07-31T18:48:12Z
audio: Die Fledermaus, Akt II: Klänge der Heimat - Czardas
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.44
  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: 0.315
  additional property: Energy
    type: PropertyValue
    value: 0.229
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.204
  additional property: Liveness
    type: PropertyValue
    value: 0.263
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.175
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.169
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Du und Du Walzer, Op. 367
type: MusicRecording
duration: PT7M34S
duration ms: 454240
explicit: false
by artist: Johann Strauss II
by artist: Philharmonia Hungarica
by artist: Eduard Strauss
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
isrc code: USZGD1030009
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T07:21:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf8caccad77ccff3e399c5c41d2f320ad257d700621b9b8ba57f13db79f61dbd4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960223
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960223
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZGD1030009
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T07:51:46Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8caccad77ccff3e399c5c41d2f320ad257d700621b9b8ba57f13db79f61dbd4. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZGD1030009 — a six-check JSON result.
  date published: 2026-07-30T07:51:46Z
audio: Du und Du Walzer, Op. 367
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 171.424
  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: 0.252
  additional property: Energy
    type: PropertyValue
    value: 0.192
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.892
  additional property: Liveness
    type: PropertyValue
    value: 0.092
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.389
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.222
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Leichte Kavallerie: Ouvertüre
type: MusicRecording
duration: PT6M32S
duration ms: 392026
explicit: false
by artist: Franz von Suppé
by artist: London Philharmonic Orchestra
by artist: Horst Stein
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
genre: late-romantic-era
genre: operetta
isrc code: CAM461030002
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T21:39:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x33ac2f98feb48c5648b58e1b8ce2b06fa7ac972039f5e909afd948cdbe86daf1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960321
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960321
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM461030002
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T22:27:30Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ac2f98feb48c5648b58e1b8ce2b06fa7ac972039f5e909afd948cdbe86daf1. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAM461030002 — a six-check JSON result.
  date published: 2026-07-30T22:27:30Z
audio: Leichte Kavallerie: Ouvertüre
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.884
  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: 0.33
  additional property: Energy
    type: PropertyValue
    value: 0.35
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.868
  additional property: Liveness
    type: PropertyValue
    value: 0.082
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.158
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.399
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Der Zigeunerbaron, Act I: "Ja das Schreiben und das Lesen"
type: MusicRecording
duration: PT2M40S
duration ms: 160626
explicit: false
by artist: Johann Strauss II
by artist: Members of the Württemberg State Opera
by artist: Harry Pleva
by artist: Kurt Böhme
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
isrc code: DEA580800212
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T10:37:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa1d2edacd74911bc37aa5f5e4dd8738bc175617f065136de5b85715534f13995
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA580800212
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d2edacd74911bc37aa5f5e4dd8738bc175617f065136de5b85715534f13995. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA580800212 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: Der Zigeunerbaron, Act I: "Ja das Schreiben und das Lesen"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.554
  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: 0.516
  additional property: Energy
    type: PropertyValue
    value: 0.28
  additional property: Speechiness
    type: PropertyValue
    value: 0.115
  additional property: Acousticness
    type: PropertyValue
    value: 0.962
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.177
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.664
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.623
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Der Zigeunerbaron, Act I: Schatzwalzer
type: MusicRecording
duration: PT7M34S
duration ms: 454733
explicit: false
by artist: Johann Strauss II
by artist: Vienna Volksoper Orchestra
by artist: Paul Kantschieder
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
isrc code: DEA580800558
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:15:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc41b74b88092aeab8d248e7049ac963ea248e8de95a663840310fcaf68132af4
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/DEA580800558
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41b74b88092aeab8d248e7049ac963ea248e8de95a663840310fcaf68132af4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA580800558 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Der Zigeunerbaron, Act I: Schatzwalzer
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.222
  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: 0.273
  additional property: Energy
    type: PropertyValue
    value: 0.182
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.903
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.874
  additional property: Liveness
    type: PropertyValue
    value: 0.081
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.352
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.322
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Simplicius: Lagerlust Polka
type: MusicRecording
duration: PT3M19S
duration ms: 199880
explicit: false
by artist: Johann Strauss II
by artist: Philharmonia Hungarica
by artist: Eduard Strauss
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
isrc code: USZDG0900716
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T10:53:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x22d1bd68a3c46622ee1b2bbc0e1f9cffec846b6b932ee7b3e8f02778f85866e0
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/USZDG0900716
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d1bd68a3c46622ee1b2bbc0e1f9cffec846b6b932ee7b3e8f02778f85866e0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZDG0900716 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Simplicius: Lagerlust Polka
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.833
  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: 0.421
  additional property: Energy
    type: PropertyValue
    value: 0.172
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.934
  additional property: Liveness
    type: PropertyValue
    value: 0.116
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.408
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.21
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Schwarzwaldmädel: Bauernpolka
type: MusicRecording
duration: PT2M6S
duration ms: 126746
explicit: false
by artist: Leon Jessel
by artist: Stuttgart Philharmonic Orchestra
by artist: Fritz Mareczek
in album: Beliebte Operettenmelodien
  type: MusicAlbum
  date published: 2010-09-01
genre: german-opera
genre: operetta
isrc code: USZDG0800392
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T07:07:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x13afff1f8fbb31a82244df8596422eb3d1fd4b32ab206e69541e1351f6c9cca4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960220
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960220
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZDG0800392
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T07:28:30Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13afff1f8fbb31a82244df8596422eb3d1fd4b32ab206e69541e1351f6c9cca4. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZDG0800392 — a six-check JSON result.
  date published: 2026-07-30T07:28:30Z
audio: Schwarzwaldmädel: Bauernpolka
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.876
  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: 0.486
  additional property: Energy
    type: PropertyValue
    value: 0.304
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Der Bettelstudent, Act I: "Und da soll man noch galant sein"
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Der Bettelstudent, Act II: "Ich setz' den Fall"
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Vocal Recital: Wunderlich, Fritz - Kaiser, E. / Georgy-Engelhardt, G. / Katt, M. / Hasenpflug, C. / Berner, H. / Kowalski, L. (1953-1956)
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Brahms: Zigeunerlieder, Op. 103 & Liebeslieder-Walzer, Op. 52 (Mono Version)
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Rimsky-Korsakov: Das Märchen vom zar Saltan
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Vivaldi for Beginners
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Classical Chorus: Beethoven, Vivaldi & Purcell
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Vivaldi: O qui coeli terraeque serenitas, Stabat mater & Gloria in D Major, RV 589 (Mono Version)
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Bach : Oster-Oratorium, BWV 249 (Mono Version)
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Franz Schubert: Essential Vocal Works
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Les splendeurs de la musique sacrée, Vol. 5
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Vivaldi in Film
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Friederike Sailer / Choeurs de Radio Stuttgart et Orchestre Pro Musica de Stuttgart play: Michel Richard Delalande: De Profundis (Psaume 129), S 23
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Friederike Sailer / Margarete Bence / Susi Lautenbacher play: Johann Sebastian Bach: "Kommt, eilet und laufet, ihr flüchtigen Füsse" - Oratorium zum Osterfest, BWV 249
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Friederike Sailer / Susi Lautenbacher etc. / Stuttgarter Bach-Chor und Orchester / Marcel Couraud play: Johann Sebastian Bach: "Kommt, eilet und laufet, ihr flüchtigen Füsse" - Oratorium zum
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Stabat Mater
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Hans Sachs
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Vivaldi: Gloria, Stabat Mater & O qui coeli terraeque serenitas
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Bach: Cantates, BWV 8 & 110 (Stereo Version)
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Beethoven: Egmont, Op. 84 & Symphony No. 1, Op. 21 (Mono Version)
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Oster-Oratorium BWV 249
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Magnificat BWV 243 & Kantate BWV 31
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Brahms: Liebeslieder-Walzer, Op. 52 & 65 (Mono Version)
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Choeurs et Orchestre Philarmonique "Pro Musica" de Stuttgart play: Antonio Vivaldi: Gloria
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100 Volkslieder
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0ac94d94b9bae296633cff8367dd13e09a84ee358cb6b3dbd3660af50bbcd3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMVRR1301695 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Gaudeamus igitur
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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Vivaldi at Christmas
type: MusicAlbum
date published: 2018-11-30
track: Dixit Dominus, RV 594: I. Dixit Dominus
  type: MusicRecording
  duration: PT2M34S
  duration ms: 154960
  explicit: false
  by artist: Antonio Vivaldi
  by artist: Vienna State Opera Orchestra
  by artist: Vienna Kammerchor
  by artist: Angelo Ephrikian
  in album: Vivaldi at Christmas
    type: MusicAlbum
    date published: 2018-11-30
  genre: classical
  genre: early-music
  genre: baroque
  genre: concerto
  isrc code: USX760630326
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0xec68dde2a76bb4a2a98ab330d85052a0a31156cd3dd667f86afd29f592ded40b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960397
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760630326
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T12:24:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec68dde2a76bb4a2a98ab330d85052a0a31156cd3dd667f86afd29f592ded40b. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760630326 — a six-check JSON result.
    date published: 2026-07-31T12:24:41Z
  audio: Dixit Dominus, RV 594: I. Dixit Dominus
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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track: Dixit Dominus, RV 594: II. Donec ponam
  type: MusicRecording
  duration: PT7M38S
  duration ms: 458688
  explicit: false
  by artist: Antonio Vivaldi
  by artist: Vienna State Opera Orchestra
  by artist: Angelo Ephrikian
  by artist: Vienna Kammerchor
  in album: Vivaldi at Christmas
    type: MusicAlbum
    date published: 2018-11-30
  genre: classical
  genre: early-music
  genre: baroque
  genre: concerto
  isrc code: USX760630327
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x87d094fc22815ab4d80f48a5de2b8c4704a5bf740c8ca5805cc86543d6b58941
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760630327
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T17:29:52Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d094fc22815ab4d80f48a5de2b8c4704a5bf740c8ca5805cc86543d6b58941. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760630327 — a six-check JSON result.
    date published: 2026-07-31T17:29:52Z
  audio: Dixit Dominus, RV 594: II. Donec ponam
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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track: Dixit Dominus, RV 594: III. Virgam virtutis tuae
  type: MusicRecording
  duration: PT2M36S
  duration ms: 156276
  explicit: false
  by artist: Antonio Vivaldi
  by artist: Vienna State Opera Orchestra
  by artist: Angelo Ephrikian
  by artist: Vienna Kammerchor
  in album: Vivaldi at Christmas
    type: MusicAlbum
    date published: 2018-11-30
  genre: classical
  genre: early-music
  genre: baroque
  genre: concerto
  isrc code: USX760630328
  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: Dixit Dominus, RV 594: III. Virgam virtutis tuae
track: Dixit Dominus, RV 594: IV. Tecum principium
track: Dixit Dominus, RV 594: V. Juravit Dominus
track: Dixit Dominus, RV 594: VI. Dominus a dextris
track: Dixit Dominus, RV 594: VII. Judicabit in nationibus
track: Dixit Dominus, RV 594: VIII. De torrente in via
track: Dixit Dominus, RV 594: X. Sicut erat

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CopyrightStatus
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CopyrightRegisteredAt
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CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0x04da3ceda9c0916ed57c2ae82938486f3a9e03b2ef909eb2d7f33ee336c96f36

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 960397

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

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760630328

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

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04da3ceda9c0916ed57c2ae82938486f3a9e03b2ef909eb2d7f33ee336c96f36. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760630328 — a six-check JSON result.
date published: 2026-07-31T12:24:41Z

Dixit Dominus, RV 594: III. Virgam virtutis tuae
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Dixit Dominus, RV 594: IV. Tecum principium
type: MusicRecording
duration: PT3M35S
duration ms: 215370
explicit: false
by artist: Antonio Vivaldi
by artist: Vienna State Opera Orchestra
by artist: Angelo Ephrikian
by artist: Vienna Kammerchor
in album: Vivaldi at Christmas
  type: MusicAlbum
  date published: 2018-11-30
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: USX760630329
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760630329
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704ddb7adfb23bd37120b06662850c4fac5f954daae521e676c8bf3cca3b5ee1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760630329 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Dixit Dominus, RV 594: IV. Tecum principium
  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: 0.302
  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
    type: PropertyValue
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Dixit Dominus, RV 594: V. Juravit Dominus
type: MusicRecording
duration: PT3M18S
duration ms: 198380
explicit: false
by artist: Antonio Vivaldi
by artist: Vienna State Opera Orchestra
by artist: Angelo Ephrikian
by artist: Vienna Kammerchor
in album: Vivaldi at Christmas
  type: MusicAlbum
  date published: 2018-11-30
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: USX760630330
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  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/USX760630330
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b60a89f61977951a4d26f01f13bf6ab4019674ef7cd07bfda0161f52a287a6d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760630330 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Dixit Dominus, RV 594: V. Juravit Dominus
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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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: Mode Name
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Dixit Dominus, RV 594: VI. Dominus a dextris
type: MusicRecording
duration: PT1M49S
duration ms: 109207
explicit: false
by artist: Antonio Vivaldi
by artist: Vienna State Opera Orchestra
by artist: Angelo Ephrikian
by artist: Vienna Kammerchor
in album: Vivaldi at Christmas
  type: MusicAlbum
  date published: 2018-11-30
genre: classical
genre: early-music
genre: baroque
genre: concerto
isrc code: USX760630331
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T06:08:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
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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/960360
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760630331
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T06:42:11Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc90d0febca7667ffad63ec484e69463aa56257edf8ed120d1b7f4a035794910. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX760630331 — a six-check JSON result.
  date published: 2026-07-31T06:42:11Z
audio: Dixit Dominus, RV 594: VI. Dominus a dextris
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    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
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  additional property: Valence (Positivity)
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Dixit Dominus, RV 594: VII. Judicabit in nationibus
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Dixit Dominus, RV 594: VIII. De torrente in via
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Dixit Dominus, RV 594: X. Sicut erat
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Antonio Vivaldi: Essential Vocal Works
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50 Best Of Volkslieder
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Johann Sebastian Bach Osteroratorium/Easter Oratorio
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111 Vivaldi Masterpieces
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111 Schubert Masterpieces
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Los Grandes de la Musica Clasica - Antonio Vivaldi Vol. 3
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Fritz Wunderlich, Vol. 6 (1956)
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