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type: MusicGroup
genre: opera
popularity: 11
followers: 101
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x9bfcf0fb4ec11ec7feb3ebfac390322479cbfb968243df5aa7a55ba2e4625a4a
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/953616
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1a396536-5548-4029-ab5f-5dafec481f18.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1a396536-5548-4029-ab5f-5dafec481f18.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1a396536-5548-4029-ab5f-5dafec481f18
additional property: OTSTimestamp
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  value: 2026-06-14T08:58:35Z
additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bfcf0fb4ec11ec7feb3ebfac390322479cbfb968243df5aa7a55ba2e4625a4a. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a396536-5548-4029-ab5f-5dafec481f18.json and https://artists.proofprofile.net/proofs/artist/1a396536-5548-4029-ab5f-5dafec481f18.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T08:58:35Z
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album: Mozart, W.A.:Cosi fan tutte K.588 - Highlights
  type: MusicAlbum
  date published: 1993
  track: Così fan tutte ossia La scuola degli amanti, K.588 / Act 1: Ouverture
    type: MusicRecording
    duration: PT4M17S
    duration ms: 257466
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    by artist: Wolfgang Amadeus Mozart
    by artist: English Baroque Soloists
    by artist: John Eliot Gardiner
    in album: Mozart, W.A.:Cosi fan tutte K.588 - Highlights
      type: MusicAlbum
      date published: 1993
    genre: classical
    genre: classical-era
    genre: classical-piano
    genre: opera
    genre: chamber-music
    genre: concerto
    isrc code: DEF059231701
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
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      value: https://explorer.copyrightchains.com/tx/0xe65468dd4b0f93aded770d7fbd17ae54d65c54c62df3bc0acbb9e2f2a7b05aaf
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      type: PropertyValue
      value: https://blockstream.info/api/block-height/960435
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059231701
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-31T16:33:26Z
    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 0xe65468dd4b0f93aded770d7fbd17ae54d65c54c62df3bc0acbb9e2f2a7b05aaf. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/DEF059231701 — a six-check JSON result.
      date published: 2026-07-31T16:33:26Z
    audio: Così fan tutte ossia La scuola degli amanti, K.588 / Act 1: Ouverture
      type: AudioObject
      additional property: Tempo (BPM)
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        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
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      additional property: Energy
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      additional property: Speechiness
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      additional property: Liveness
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      additional property: Valence (Positivity)
        type: PropertyValue
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      additional property: Loudness (dB)
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album: Handel: Giulio Cesare in Egitto
  type: MusicAlbum
  date published: 1995-01-01
  track: Giulio Cesare in Egitto, HWV 17, Act I: Ouverture
    type: MusicRecording
    duration: PT3M18S
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    by artist: La Grande Écurie et la Chambre du Roy
    by artist: Jean-claude Magloire
    in album: Handel: Giulio Cesare in Egitto
      type: MusicAlbum
      date published: 1995-01-01
    popularity: 1
    genre: classical
    genre: opera
    genre: early-music
    genre: baroque
    genre: english-baroque
    genre: german-baroque
    genre: choral
    isrc code: FR10S1758847
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-31T10:22:34+00:00
    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/FR10S1758847
    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 0xfcf5cf888a1a5b91be1777f9cefffdafd2c3ce0d1883130e48f3d7badf701ec6. 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/FR10S1758847 — a six-check JSON result.
      date published: 2026-07-31T12:24:41Z
    audio: Giulio Cesare in Egitto, HWV 17, Act I: Ouverture
      type: AudioObject
      additional property: Tempo (BPM)
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        value: 125.161
      additional property: Musical Key
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        value: 8
      additional property: Mode (Major/Minor)
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        value: 1
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        type: PropertyValue
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      additional property: Danceability
        type: PropertyValue
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      additional property: Energy
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      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
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  track: Giulio Cesare in Egitto, HWV 17, Act I, Scene 3: Empio, dirò, tu sei, togliti (Cesare)
  track: Giulio Cesare in Egitto, HWV 17, Act I, Scene 4: Svegliatevi nel core, furie d'un alma offesa (Aria) (Sesto)
  track: Giulio Cesare in Egitto, HWV 17, Act I, Scene 5: Non disperar; chi sa? Se al regno (Cleopatra)
  track: Giulio Cesare in Egitto, HWV 17, Act I, Scene 9: Vatacito e nascosto (Aria) (Cesare)
track: Die Zauberflöte, ZWEITER AUFZUG, Nr.10 Aria & Dialog: Aria con coro: O Isis und Osiris ... (Sarastro/Priester)
track: Mozart: Die Zauberflöte, K. 620, Act 1 Scene 1: No. 1, Introduction, "Zu Hilfe! Zu Hilfe!" (Tamino, Drei Damen)
track: Mozart: Die Zauberflöte, K. 620, Act 1 Scene 1: "Ich sollte fort! Ei ei! wie fein!" (Drei Damen)
track: Mozart: Die Zauberflöte, K. 620, Act 1 Scene 3: Dialog, "Papageno! … Wer sind diese Damen?" (Drei Damen, Papageno, Tamino)
track: Mozart: Die Zauberflöte, K. 620, Act 1 Scene 7: No. 5, Quintett, "Hm! hm! hm! hm!" (Papageno, Tamino, Drei Damen)
track: Mozart: Die Zauberflöte, K. 620, Act 1 Scene 5: Dialog, "Rüste dich mit Mut und Standhaftigkeit … Sie kommt!" (Drei Damen, Tamino)
track: Mozart: Die Zauberflöte, K. 620, Act 2 Scene 5: No. 12, Quintett, "Wie? Wie? Wie?" (Drei Damen, Papageno, Tamino, Die Eingeweihten)

Energy
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value: 0.204

Speechiness
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value: 0.038

Acousticness
type: PropertyValue
value: 0.94

Instrumentalness
type: PropertyValue
value: 0.889

Liveness
type: PropertyValue
value: 0.16

Valence (Positivity)
type: PropertyValue
value: 0.618

Loudness (dB)
type: PropertyValue
value: -25.765

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Major

Giulio Cesare in Egitto, HWV 17, Act I, Scene 3: Empio, dirò, tu sei, togliti (Cesare)
type: MusicRecording
duration: PT3M42S
duration ms: 222933
explicit: false
by artist: George Frideric Handel
by artist: La Grande Écurie et la Chambre du Roy
by artist: Jean-claude Magloire
by artist: James Bowman
in album: Handel: Giulio Cesare in Egitto
  type: MusicAlbum
  date published: 1995-01-01
popularity: 1
genre: classical
genre: opera
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
genre: choral
isrc code: FR10S1758852
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T10:02:15+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x34d780aebd2c8a4e66cb29fa4d516e274219a9dae7677174cd8e538f0d1146d7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960389
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960389
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1758852
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T10:20:10Z
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 0x34d780aebd2c8a4e66cb29fa4d516e274219a9dae7677174cd8e538f0d1146d7. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1758852 — a six-check JSON result.
  date published: 2026-07-31T10:20:10Z
audio: Giulio Cesare in Egitto, HWV 17, Act I, Scene 3: Empio, dirò, tu sei, togliti (Cesare)
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  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.022
  additional property: Musical Key
    type: PropertyValue
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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
    type: PropertyValue
    value: 0.959
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
    value: 0.349
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.73
  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
    value: Minor

Giulio Cesare in Egitto, HWV 17, Act I, Scene 4: Svegliatevi nel core, furie d'un alma offesa (Aria) (Sesto)
type: MusicRecording
duration: PT3M57S
duration ms: 237760
explicit: false
by artist: George Frideric Handel
by artist: La Grande Écurie et la Chambre du Roy
by artist: Jean-claude Magloire
by artist: Eirian James
in album: Handel: Giulio Cesare in Egitto
  type: MusicAlbum
  date published: 1995-01-01
popularity: 2
genre: classical
genre: opera
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
genre: choral
isrc code: FR10S1758856
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T02:53:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x92e12b43992e5df71dcb30bfa3f80c99e05a84b780f663f78a932ebbfc52ed60
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960203
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960203
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1758856
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T03:35:13Z
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 0x92e12b43992e5df71dcb30bfa3f80c99e05a84b780f663f78a932ebbfc52ed60. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/FR10S1758856 — a six-check JSON result.
  date published: 2026-07-30T03:35:13Z
audio: Giulio Cesare in Egitto, HWV 17, Act I, Scene 4: Svegliatevi nel core, furie d'un alma offesa (Aria) (Sesto)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.819
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.392
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.062
  additional property: Acousticness
    type: PropertyValue
    value: 0.961
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.161
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.279
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.788
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Giulio Cesare in Egitto, HWV 17, Act I, Scene 5: Non disperar; chi sa? Se al regno (Cleopatra)
type: MusicRecording
duration: PT4M9S
duration ms: 249333
explicit: false
by artist: George Frideric Handel
by artist: La Grande Écurie et la Chambre du Roy
by artist: Jean-claude Magloire
by artist: Lynne Dawson
in album: Handel: Giulio Cesare in Egitto
  type: MusicAlbum
  date published: 1995-01-01
popularity: 1
genre: classical
genre: opera
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
genre: choral
isrc code: FR10S1758858
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T10:23:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x52dc506ba717a48b96cf19380262ce603129b665eaa2e7671538fcc4acc162db
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/FR10S1758858
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 0x52dc506ba717a48b96cf19380262ce603129b665eaa2e7671538fcc4acc162db. 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/FR10S1758858 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: Giulio Cesare in Egitto, HWV 17, Act I, Scene 5: Non disperar; chi sa? Se al regno (Cleopatra)
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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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Giulio Cesare in Egitto, HWV 17, Act I, Scene 9: Vatacito e nascosto (Aria) (Cesare)
type: MusicRecording
duration: PT6M37S
duration ms: 397293
explicit: false
by artist: George Frideric Handel
by artist: La Grande Écurie et la Chambre du Roy
by artist: Jean-claude Magloire
by artist: James Bowman
in album: Handel: Giulio Cesare in Egitto
  type: MusicAlbum
  date published: 1995-01-01
popularity: 2
genre: classical
genre: opera
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
genre: choral
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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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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  date published: 2026-07-31T05:48:18Z
audio: Giulio Cesare in Egitto, HWV 17, Act I, Scene 9: Vatacito e nascosto (Aria) (Cesare)
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Die Zauberflöte, ZWEITER AUFZUG, Nr.10 Aria & Dialog: Aria con coro: O Isis und Osiris ... (Sarastro/Priester)
type: MusicRecording
duration: PT3M12S
duration ms: 192440
explicit: false
by artist: Andreas Schmidt
by artist: Jeremy Birchall
by artist: Olaf Bär
by artist: Catherine Denley
by artist: Catherine Pierard
by artist: Konrad Hünteler
by artist: Guy De Mey
by artist: Anthony Rolfe Johnson
by artist: Cornelius Hauptmann
by artist: Dawn Upshaw
by artist: Schütz Choir of London
by artist: Richard Wistreich
by artist: Tessa Bonner
by artist: Eirian James
by artist: Beverly Hoch
by artist: London Classical Players
by artist: Sir Roger Norrington
by artist: Evelyn Tubb
by artist: Rufus Müller
by artist: Wolfgang Riedelbauch
by artist: Nancy Argenta
by artist: Caroline Trevor
in album: 100 Best Opera Classics
  type: MusicAlbum
  date published: 2007-03-20
popularity: 7
genre: classical-baritone
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  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 0x3377f10828dc2b1aec9a1f92581865a7b0779dfe408c94695afe4f2798adb11c. 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/GBAYC9001019 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Die Zauberflöte, ZWEITER AUFZUG, Nr.10 Aria & Dialog: Aria con coro: O Isis und Osiris ... (Sarastro/Priester)
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Mozart: Die Zauberflöte, K. 620, Act 1 Scene 1: No. 1, Introduction, "Zu Hilfe! Zu Hilfe!" (Tamino, Drei Damen)
type: MusicRecording
duration: PT3M15S
duration ms: 195400
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Sir Roger Norrington
by artist: London Classical Players
by artist: Sir Roger Norrington/London Classical Players/Anthony Rolfe Johnson/Andreas Schmidt/Dawn Upshaw/Guy de Mey/Beverley Hoch/Olaf Bär/Catherine Denley/Catherine Pierard/Cornelius Hauptmann/Nancy
by artist: Anthony Rolfe Johnson
by artist: Catherine Denley
by artist: Eirian James
by artist: Nancy Argenta
in album: Mozart: Die Zauberflote
  type: MusicAlbum
  date published: 2005-02-07
popularity: 3
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC9000984
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/GBAYC9000984
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57d70b984e2a2e0950787b0940dd8bb3221ece73b990cdc88588d253af09769. 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/GBAYC9000984 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Die Zauberflöte, K. 620, Act 1 Scene 1: No. 1, Introduction, "Zu Hilfe! Zu Hilfe!" (Tamino, Drei Damen)
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Mozart: Die Zauberflöte, K. 620, Act 1 Scene 1: "Ich sollte fort! Ei ei! wie fein!" (Drei Damen)
type: MusicRecording
duration: PT2M32S
duration ms: 152466
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Sir Roger Norrington
by artist: London Classical Players
by artist: Sir Roger Norrington/London Classical Players/Anthony Rolfe Johnson/Andreas Schmidt/Dawn Upshaw/Guy de Mey/Beverley Hoch/Olaf Bär/Catherine Denley/Catherine Pierard/Cornelius Hauptmann/Nancy
by artist: Catherine Denley
by artist: Eirian James
by artist: Nancy Argenta
in album: Mozart: Die Zauberflote
  type: MusicAlbum
  date published: 2005-02-07
popularity: 2
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC9000985
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:40:02+00:00
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/GBAYC9000985
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 0x7b55570ecdd30e5215e3ca0a6701029299f78f2a106c8f28a413c4daa744e01e. 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/GBAYC9000985 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Die Zauberflöte, K. 620, Act 1 Scene 1: "Ich sollte fort! Ei ei! wie fein!" (Drei Damen)
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  additional property: Tempo (BPM)
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Mozart: Die Zauberflöte, K. 620, Act 1 Scene 3: Dialog, "Papageno! … Wer sind diese Damen?" (Drei Damen, Papageno, Tamino)
type: MusicRecording
duration: PT1M56S
duration ms: 116533
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Sir Roger Norrington
by artist: Sir Roger Norrington/London Classical Players/Anthony Rolfe Johnson/Andreas Schmidt/Dawn Upshaw/Guy de Mey/Beverley Hoch/Olaf Bär/Catherine Denley/Catherine Pierard/Cornelius Hauptmann/Nancy
by artist: Andreas Schmidt
by artist: Anthony Rolfe Johnson
by artist: Catherine Denley
by artist: Eirian James
by artist: Nancy Argenta
by artist: London Classical Players
in album: Mozart: Die Zauberflote
  type: MusicAlbum
  date published: 2005-02-07
popularity: 2
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC9000991
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc5b0078a7f97f66bb15e1dff6cb64bb74d2dd103d6d67e429db76b4c3276bb25
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/GBAYC9000991
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 0xc5b0078a7f97f66bb15e1dff6cb64bb74d2dd103d6d67e429db76b4c3276bb25. 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/GBAYC9000991 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Die Zauberflöte, K. 620, Act 1 Scene 3: Dialog, "Papageno! … Wer sind diese Damen?" (Drei Damen, Papageno, Tamino)
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  additional property: Tempo (BPM)
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Mozart: Die Zauberflöte, K. 620, Act 1 Scene 7: No. 5, Quintett, "Hm! hm! hm! hm!" (Papageno, Tamino, Drei Damen)
type: MusicRecording
duration: PT5M45S
duration ms: 345733
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Sir Roger Norrington
by artist: London Classical Players
by artist: Sir Roger Norrington/London Classical Players/Anthony Rolfe Johnson/Andreas Schmidt/Dawn Upshaw/Guy de Mey/Beverley Hoch/Olaf Bär/Catherine Denley/Catherine Pierard/Cornelius Hauptmann/Nancy
by artist: Andreas Schmidt
by artist: Anthony Rolfe Johnson
by artist: Catherine Denley
by artist: Eirian James
by artist: Nancy Argenta
in album: Mozart: Die Zauberflote
  type: MusicAlbum
  date published: 2005-02-07
popularity: 2
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GBAYC9000999
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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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/960309
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9000999
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T20:35:49Z
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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  date published: 2026-07-30T20:35:49Z
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Mozart: Die Zauberflöte, K. 620, Act 1 Scene 5: Dialog, "Rüste dich mit Mut und Standhaftigkeit … Sie kommt!" (Drei Damen, Tamino)
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  date published: 2026-07-08T03:20:19Z
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Mozart: Die Zauberflöte, K. 620, Act 2 Scene 5: No. 12, Quintett, "Wie? Wie? Wie?" (Drei Damen, Papageno, Tamino, Die Eingeweihten)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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