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subject of: OpenTimestamps Proof of Existence
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track: Die lustige Witwe, Act III: No. 14, Chanson "Grisetten-Lied". Ja, wir sind es die Grisetten
track: Die lustige Witwe, Act III: No. 14a, Reminiszenz: Tra la la la la...
track: Die lustige Witwe, Act III: No. 16, Schlussgesang. Ja, das Studium der Weiber ist schwer

Die lustige Witwe, Act III: No. 14, Chanson "Grisetten-Lied". Ja, wir sind es die Grisetten
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by artist: Franz Lehár
by artist: Mechthild Gessendorf
by artist: Catherine Ott
by artist: Maria Theresa Reinoso
by artist: Elke Grosshans
by artist: Teresa Stratas
by artist: Carol Pritchett
by artist: Kaja Boris
by artist: René Kollo
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Lehár: Die lustige Witwe
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  date published: 1992-01-01
genre: opera
isrc code: DEF057230411
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Die lustige Witwe, Act III: No. 14, Chanson "Grisetten-Lied". Ja, wir sind es die Grisetten
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Die lustige Witwe, Act III: No. 14a, Reminiszenz: Tra la la la la...
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duration: PT0M35S
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by artist: Franz Lehár
by artist: Mechthild Gessendorf
by artist: Catherine Ott
by artist: Martha Reikow
by artist: Elke Grosshans
by artist: Carol Pritchett
by artist: Kaja Boris
by artist: René Kollo
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Lehár: Die lustige Witwe
  type: MusicAlbum
  date published: 1992-01-01
genre: opera
isrc code: DEF057230438
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
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additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Die lustige Witwe, Act III: No. 14a, Reminiszenz: Tra la la la la...
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Die lustige Witwe, Act III: No. 16, Schlussgesang. Ja, das Studium der Weiber ist schwer
type: MusicRecording
duration: PT0M47S
duration ms: 47133
explicit: false
by artist: Franz Lehár
by artist: Catherine Ott
by artist: Maria Theresa Reinoso
by artist: Elke Grosshans
by artist: Elizabeth Harwood
by artist: Teresa Stratas
by artist: Mechthild Gessendorf
by artist: Carol Pritchett
by artist: Kaja Boris
by artist: René Kollo
by artist: Martin Vantin
by artist: Ernst Krukowski
by artist: Zoltan Kelemen
by artist: Manfred Röhrl
by artist: Chor der Deutschen Oper Berlin
by artist: Berliner Philharmoniker
by artist: Herbert von Karajan
in album: Lehár: Die lustige Witwe
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  date published: 1992-01-01
genre: opera
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Die lustige Witwe, Act III: No. 16, Schlussgesang. Ja, das Studium der Weiber ist schwer
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