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type: MusicGroup
genre: opera
popularity: 8
followers: 116
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-20T06:31:18Z
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album: Strauss, R.: 4 Last Songs / 6 Lieder / Ariadne Auf Naxos (Excerpts)
  type: MusicAlbum
  date published: 2008-02-26
album: Wagner: Der Ring des Nibelungen
  type: MusicAlbum
  date published: 2019-07-19
album: Wagner Operas
  type: MusicAlbum
  date published: 2019-05-10
album: Humperdinck: Hänsel und Gretel
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  date published: 2017-10-01
  track: Hänsel und Gretel, EHWV 93.3, Act I: Suse liebe Suse, was raschelt im Stroh?
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    by artist: Rundfunk-Sinfonieorchester Berlin
    by artist: Marek Janowski
    by artist: Katrin Wundsam
    by artist: Alexandra Steiner
    in album: Humperdinck: Hänsel und Gretel
      type: MusicAlbum
      date published: 2017-10-01
    genre: opera
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    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f679e6f5b9a079d2e8253a4f34c5f9dd8a60bd1293b360da13fc811b6416e4a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421601002.
      date published: 2026-07-08T03:22:41Z
    audio: Hänsel und Gretel, EHWV 93.3, Act I: Suse liebe Suse, was raschelt im Stroh?
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  track: Hänsel und Gretel, EHWV 93.3, Act I: Brüderchen, komm, tanz mit mir
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    by artist: Katrin Wundsam
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    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      date published: 2026-07-08T03:22:41Z
    audio: Hänsel und Gretel, EHWV 93.3, Act I: Brüderchen, komm, tanz mit mir
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  track: Hänsel und Gretel, EHWV 93.3, Act III: Nun Gretel, sei vernünftig und nett!
  track: Hänsel und Gretel, EHWV 93.3, Act III: Hurr hopp hopp hopp
  track: Hänsel und Gretel, EHWV 93.3, Act III: Erlöst, befreit, für alle Zeit!
  track: Hänsel und Gretel, EHWV 93.3, Act II: Abends, will ich schlafen geh'n
  track: Hänsel und Gretel, EHWV 93.3, Act II: Traumpantomime
  track: Hänsel und Gretel, EHWV 93.3, Act III: Vater! Mutter!
album: Wagner: Das Rheingold
album: The A to Z of Classical Music (3rd Expanded Edition, 2009)
album: Wiener Opernfest 2005
album: Wagner: Der fliegende Holländer
album: Johan Botha: Wiener Staatsoper Live (1997-2014)
album: Braunfels: Orchestral Songs, Vol. 2
album: Mahler: Symphony No. 8
album: Wagner: Der fliegende Holländer, WWV 63 (Live)
album: Mahler: Symphony No. 2, "Resurrection" (Live)

Hänsel und Gretel, EHWV 93.3, Act III: Vater! Mutter!
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duration: PT2M5S
duration ms: 125201
explicit: false
by artist: Engelbert Humperdinck
by artist: Rundfunk-Sinfonieorchester Berlin
by artist: Marek Janowski
by artist: Katrin Wundsam
by artist: Alexandra Steiner
by artist: Albert Dohmen
by artist: Ricarda Merbeth
in album: Humperdinck: Hänsel und Gretel
  type: MusicAlbum
  date published: 2017-10-01
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T18:48:12Z
audio: Hänsel und Gretel, EHWV 93.3, Act III: Vater! Mutter!
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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

Mahler: Symphony No. 2 in C Minor, "Resurrection": V. Im Tempo des Scherzos - Live
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by artist: Gustav Mahler
by artist: Royal Concertgebouw Orchestra
by artist: Bernarda Fink
by artist: Ricarda Merbeth
by artist: Mariss Jansons
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genre: classical
genre: orchestra
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Mahler: Symphony No. 2 in C Minor, "Resurrection": V. Im Tempo des Scherzos - Live
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Loudness (dB)
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Hänsel und Gretel, EHWV 93.3, Act III: Nun Gretel, sei vernünftig und nett!
type: MusicRecording
duration: PT4M44S
duration ms: 284612
explicit: false
by artist: Engelbert Humperdinck
by artist: Rundfunk-Sinfonieorchester Berlin
by artist: Marek Janowski
by artist: Alexandra Steiner
by artist: Katrin Wundsam
by artist: Christian Elsner
in album: Humperdinck: Hänsel und Gretel
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genre: opera
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additional property: CopyrightID
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd898d115d84d9518066c163ebb81b4f835de7543b3e23b95f9a00a38335daed2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE421601027.
  date published: 2026-07-08T08:56:20Z
audio: Hänsel und Gretel, EHWV 93.3, Act III: Nun Gretel, sei vernünftig und nett!
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Hänsel und Gretel, EHWV 93.3, Act III: Hurr hopp hopp hopp
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by artist: Marek Janowski
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Hänsel und Gretel, EHWV 93.3, Act III: Hurr hopp hopp hopp
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Hänsel und Gretel, EHWV 93.3, Act III: Erlöst, befreit, für alle Zeit!
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by artist: Engelbert Humperdinck
by artist: Rundfunk-Sinfonieorchester Berlin
by artist: Marek Janowski
by artist: Katrin Wundsam
by artist: Alexandra Steiner
by artist: Albert Dohmen
by artist: Kinderchor der Staatsoper Unter den Linden
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genre: opera
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:39:04Z
audio: Hänsel und Gretel, EHWV 93.3, Act III: Erlöst, befreit, für alle Zeit!
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Hänsel und Gretel, EHWV 93.3, Act II: Abends, will ich schlafen geh'n
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by artist: Katrin Wundsam
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Hänsel und Gretel, EHWV 93.3, Act II: Abends, will ich schlafen geh'n
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Hänsel und Gretel, EHWV 93.3, Act II: Traumpantomime
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by artist: Rundfunk-Sinfonieorchester Berlin
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Hänsel und Gretel, EHWV 93.3, Act II: Traumpantomime
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Wagner: Das Rheingold
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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The A to Z of Classical Music (3rd Expanded Edition, 2009)
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Wiener Opernfest 2005
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date published: 2016-07-01

Wagner: Der fliegende Holländer
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date published: 2011-09-01
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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track: Der fliegende Holländer, WWV 63, Act II: Summ und brumm, du gutes Rädchen
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T08:56:20Z
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