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genre: opera
popularity: 2
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 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. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-20T08:57:02Z
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track: 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
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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
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa74b1c0e5318f0998ac3a49f0a1ec1c85b4bc5f1cccbd816ec9e467705be423. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057230411.
    date published: 2026-07-08T03:20:19Z
  audio: Die lustige Witwe, Act III: No. 14, Chanson "Grisetten-Lied". Ja, wir sind es die Grisetten
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track: Die lustige Witwe, Act III: No. 14a, Reminiszenz: Tra la la la la...
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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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    value: 2026-07-07T10:45:45+00:00
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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
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    date published: 2026-07-08T03:20:19Z
  audio: Die lustige Witwe, Act III: No. 14a, Reminiszenz: Tra la la la la...
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track: Die lustige Witwe, Act III: No. 16, Schlussgesang. Ja, das Studium der Weiber ist schwer

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Valence (Positivity)
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Loudness (dB)
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Mode Name
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Die lustige Witwe, Act III: No. 16, Schlussgesang. Ja, das Studium der Weiber ist schwer
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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
  type: MusicAlbum
  date published: 1992-01-01
genre: opera
isrc code: DEF057230413
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5588f29a00b77c00aaf883476b684f566ac30715d51ce16bb38017c859cfb4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057230413.
  date published: 2026-07-08T03:20:19Z
audio: Die lustige Witwe, Act III: No. 16, Schlussgesang. Ja, das Studium der Weiber ist schwer
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