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type: MusicGroup
genre: opera
popularity: 6
followers: 22
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5055460f5bc92c32323da1a77bf2d4b8e3daaa31f0d7bba5fd9ffed5bf1d83. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a03fd877-35f7-4a95-9c59-7670f16dc643.json and https://artists.proofprofile.net/proofs/artist/a03fd877-35f7-4a95-9c59-7670f16dc643.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
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album: The Art Of Irmgard Seefried – Volume 7
  type: MusicAlbum
  date published: 1962-01-01
album: Mozart 111 Vol. 2
  type: MusicAlbum
  date published: 2012-01-01
  track: Rondo in D Major, K. 485
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    by artist: Vladimir Horowitz
    in album: Mozart 111 Vol. 2
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      date published: 2012-01-01
    popularity: 21
    genre: classical
    genre: classical-era
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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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8262a203e1cca8235697857c980f6499a4768e3f805a879fbff2b23e46d07820. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEF058603930.
      date published: 2026-07-02T03:30:09Z
    audio: Rondo in D Major, K. 485
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album: Mozart: Die Zauberflöte
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  date published: 1964-01-01
  track: Die Zauberflöte, K. 620: Overture
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    by artist: Wolfgang Amadeus Mozart
    by artist: Berliner Philharmoniker
    by artist: Karl Böhm
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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
    subject of: OpenTimestamps Proof of Existence
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09383ffe9b738f87088b7f081868edc9389ecb69e65fcdafa91f428b45daef66. 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/DEF056430601.
      date published: 2026-07-08T03:22:41Z
    audio: Die Zauberflöte, K. 620: Overture
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      additional property: Valence (Positivity)
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  track: Die Zauberflöte, K. 620 / Erster Aufzug: "Dies Bildnis ist bezaubernd schön"
album: Jean Sibelius rakkaudella
album: The Originals - Legendary Recordings From The Deutsche Grammophon Catalogue
album: Fritz Wunderlich: Musical Pearls
album: Fritz Wunderlich singt Mozart
album: Handel: Tamerlano, HWV 18
album: Suomalaisia kansanlauluja
album: Raili Kostia
album: Irmgard Seefried: Essentials
album: Sibelius: Kullervo
album: Centenary Edition 1913 - 2013 Berliner Philharmoniker
album: The Recitals
album: Oskar Merikannon lauluja
album: Querschnitt durch das Kinderklassik-Repertoire
album: Mozart: Die Zauberflote K620 - Highlights
album: Ferdinand Leitner Anniversary Edition
album: Brahms: Liebeslieder-Walzer; Neue Liebeslieder-Walzer

Die Zauberflöte, K. 620 / Erster Aufzug: "Zum Ziele führt dich diese Bahn"
type: MusicRecording
duration: PT10M24S
duration ms: 624106
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Rosl Schwaiger
by artist: Antonia Fahberg
by artist: Raili Kostia
by artist: Fritz Wunderlich
by artist: Hubert Hilten
by artist: Martin Vantin
by artist: Manfred Röhrl
by artist: Hans Hotter
by artist: Berliner Philharmoniker
by artist: Karl Böhm
by artist: RIAS Kammerchor
by artist: Günther Arndt
in album: Fritz Wunderlich: Musical Pearls
  type: MusicAlbum
  date published: 2005-01-01
popularity: 7
genre: classical
genre: classical-era
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd2f6261685e41ef38bdbabdf8eeae0cdbf21ef5d3845d480e0b649a720793a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056430626.
  date published: 2026-07-29T19:35:34Z
audio: Die Zauberflöte, K. 620 / Erster Aufzug: "Zum Ziele führt dich diese Bahn"
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additional property: ProofProfileEvidenceStatus
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additional property: OTSBitcoinBlockVerifyURL
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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

Sibelius: Kullervo, Op. 7: III. Kullervo and His Sister
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duration: PT24M55S
duration ms: 1495800
explicit: false
by artist: Jean Sibelius
by artist: Helsinki University Male Choir/Bournemouth Symphony Orchestra/Paavo Berglund
by artist: Raili Kostia
by artist: Helsinki University Choir
by artist: Usko Viitanen
by artist: Paavo Berglund
by artist: Bournemouth Symphony Orchestra
in album: Sibelius: Kullervo
  type: MusicAlbum
  date published: 2000
genre: classical
genre: impressionism
genre: post-romantic-era
genre: finnish-classical
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additional property: CopyrightStatus
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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: 2026-07-08T08:56:20Z
audio: Sibelius: Kullervo, Op. 7: III. Kullervo and His Sister
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Die Zauberflöte, K. 620, Act II: No. 16, Trio. Seid uns zum zweiten Mal willkommen
type: MusicRecording
duration: PT1M49S
duration ms: 109333
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Rosl Schwaiger
by artist: Antonia Fahberg
by artist: Raili Kostia
by artist: Berliner Philharmoniker
by artist: Karl Böhm
in album: Mozart: Die Zauberflote K620 - Highlights
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  date published: 1964-01-01
popularity: 7
genre: classical
genre: classical-era
isrc code: DEF056430611
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
  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
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: 2026-07-08T03:20:19Z
audio: Die Zauberflöte, K. 620, Act II: No. 16, Trio. Seid uns zum zweiten Mal willkommen
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Acousticness
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Liveness
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Valence (Positivity)
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value: 0.128

Loudness (dB)
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value: -20.77

Key Name
type: PropertyValue
value: Eb

Mode Name
type: PropertyValue
value: Major

Die Zauberflöte, K. 620 / Erster Aufzug: "Dies Bildnis ist bezaubernd schön"
type: MusicRecording
duration: PT4M36S
duration ms: 276000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Fritz Wunderlich
by artist: Berliner Philharmoniker
by artist: Karl Böhm
in album: Mozart: Die Zauberflöte
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genre: classical
genre: classical-era
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additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x03a5d91ad6344c5e9027153f2e3865c629d0f332951bfe978f774e0d49978d34
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/DEF056430604
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a5d91ad6344c5e9027153f2e3865c629d0f332951bfe978f774e0d49978d34. 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/DEF056430604.
  date published: 2026-07-08T03:20:19Z
audio: Die Zauberflöte, K. 620 / Erster Aufzug: "Dies Bildnis ist bezaubernd schön"
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  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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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.279
  additional property: Energy
    type: PropertyValue
    value: 0.128
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.97
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.19
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.058
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.591
  additional property: Key Name
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  additional property: Mode Name
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Jean Sibelius rakkaudella
type: MusicAlbum
date published: 2014-10-24
track: Sibelius : Kuusi Op. 75 No. 5
  type: MusicRecording
  duration: PT2M56S
  duration ms: 176466
  explicit: false
  by artist: Liisa Karhila
  in album: Jean Sibelius rakkaudella
    type: MusicAlbum
    date published: 2014-10-24
  isrc code: FIFMF1238202
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-23T09:46:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x13c1affd6bbd6fc6edeeeeb058b584df5ac04a24ffa15e185dc9f837a7e99f7b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956312
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956312
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FIFMF1238202
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T05:09:12Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c1affd6bbd6fc6edeeeeb058b584df5ac04a24ffa15e185dc9f837a7e99f7b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FIFMF1238202.
    date published: 2026-07-02T05:09:12Z
  audio: Sibelius : Kuusi Op. 75 No. 5
    type: AudioObject
    additional property: Tempo (BPM)
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    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: 0.357
    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
      value: 0.885
    additional property: Liveness
      type: PropertyValue
      value: 0.287
    additional property: Valence (Positivity)
      type: PropertyValue
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    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.59
    additional property: Key Name
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The Originals - Legendary Recordings From The Deutsche Grammophon Catalogue
type: MusicAlbum
date published: 2014-01-01

Fritz Wunderlich: Musical Pearls
type: MusicAlbum
date published: 2005-01-01
track: Die Zauberflöte, K. 620 / Erster Aufzug: "Wie stark ist nicht dein Zauberton"
  type: MusicRecording
  duration: PT3M18S
  duration ms: 198826
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Fritz Wunderlich
  by artist: Dietrich Fischer-Dieskau
  by artist: Berliner Philharmoniker
  by artist: Karl Böhm
  in album: Fritz Wunderlich: Musical Pearls
    type: MusicAlbum
    date published: 2005-01-01
  popularity: 2
  genre: classical
  genre: classical-era
  isrc code: DEF056430627
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T10:42:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdb969255366c496beb020d848d8b1d9015222289b50588ab4e6fed58e252bceb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957145
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957145
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056430627
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T08:56:20Z
  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
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb969255366c496beb020d848d8b1d9015222289b50588ab4e6fed58e252bceb. 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/DEF056430627.
    date published: 2026-07-08T08:56:20Z
  audio: Die Zauberflöte, K. 620 / Erster Aufzug: "Wie stark ist nicht dein Zauberton"
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 169.211
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 6
    additional property: Danceability
      type: PropertyValue
      value: 0.283
    additional property: Energy
      type: PropertyValue
      value: 0.087
    additional property: Speechiness
      type: PropertyValue
      value: 0.055
    additional property: Acousticness
      type: PropertyValue
      value: 0.982
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.124
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.176
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.402
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Die Zauberflöte, K. 620 / Zweiter Aufzug: "Tamino mein! O welch ein Glück!"
  type: MusicRecording
  duration: PT7M11S
  duration ms: 431306
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Evelyn Lear
  by artist: Fritz Wunderlich
  by artist: RIAS Kammerchor
  by artist: Berliner Philharmoniker
  by artist: Karl Böhm
  in album: Fritz Wunderlich: Musical Pearls
    type: MusicAlbum
    date published: 2005-01-01
  popularity: 1
  genre: classical
  genre: classical-era
  isrc code: DEF056430647
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T01:47:56+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/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056430647
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33e9994317506ba98b7c4ec46ae5735a81ebf782c4a10d780025c0b516f945d. 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/DEF056430647.
    date published: 2026-07-08T03:22:41Z
  audio: Die Zauberflöte, K. 620 / Zweiter Aufzug: "Tamino mein! O welch ein Glück!"
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 106.452
    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: 0.238
    additional property: Energy
      type: PropertyValue
      value: 0.128
    additional property: Speechiness
      type: PropertyValue
      value: 0.056
    additional property: Acousticness
      type: PropertyValue
      value: 0.984
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.118
    additional property: Liveness
      type: PropertyValue
      value: 0.089
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.078
    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.643
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
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track: Die Zauberflöte, K. 620 / Erster Aufzug: "Zum Ziele führt dich diese Bahn"

Fritz Wunderlich singt Mozart
type: MusicAlbum
date published: 2010-01-01
track: Die Zauberflöte, K. 620 / Erster Aufzug: "Wie stark ist nicht dein Zauberton"
  type: MusicRecording
  duration: PT3M18S
  duration ms: 198560
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Fritz Wunderlich
  by artist: Dietrich Fischer-Dieskau
  by artist: Berliner Philharmoniker
  by artist: Karl Böhm
  in album: Fritz Wunderlich singt Mozart
    type: MusicAlbum
    date published: 2010-01-01
  genre: classical
  genre: classical-era
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T10:42:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdb969255366c496beb020d848d8b1d9015222289b50588ab4e6fed58e252bceb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957061
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056430627
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T16:07:00Z
  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
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb969255366c496beb020d848d8b1d9015222289b50588ab4e6fed58e252bceb. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEF056430627.
    date published: 2026-07-07T16:07:00Z
  audio: Die Zauberflöte, K. 620 / Erster Aufzug: "Wie stark ist nicht dein Zauberton"
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 104.291
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.323
    additional property: Energy
      type: PropertyValue
      value: 0.098
    additional property: Speechiness
      type: PropertyValue
      value: 0.051
    additional property: Acousticness
      type: PropertyValue
      value: 0.981
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.098
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.187
    additional property: Loudness (dB)
      type: PropertyValue
      value: -23.247
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Die Zauberflöte, K. 620 / Zweiter Aufzug: "Der, welcher wandelt diese Straße voll Beschwerden"
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  duration: PT5M25S
  duration ms: 325240
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Evelyn Lear
  by artist: James King
  by artist: Fritz Wunderlich
  by artist: Martti Talvela
  by artist: Berliner Philharmoniker
  by artist: Karl Böhm
  in album: Fritz Wunderlich singt Mozart
    type: MusicAlbum
    date published: 2010-01-01
  genre: classical
  genre: classical-era
  isrc code: DEF056430646
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T10:24:54+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2a3df50e2b1114732648eed2c79dde585d4d293f3060745eee29c4db94297d7b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957145
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056430646
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T08:56:20Z
  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
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3df50e2b1114732648eed2c79dde585d4d293f3060745eee29c4db94297d7b. 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/DEF056430646.
    date published: 2026-07-08T08:56:20Z
  audio: Die Zauberflöte, K. 620 / Zweiter Aufzug: "Der, welcher wandelt diese Straße voll Beschwerden"
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 132.601
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.339
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
      value: 0.035
    additional property: Acousticness
      type: PropertyValue
      value: 0.975
    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.124
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.173
    additional property: Key Name
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    additional property: Mode Name
      type: PropertyValue
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track: Die Zauberflöte, K. 620 / Zweiter Aufzug: "Tamino mein! O welch ein Glück!"
  type: MusicRecording
  duration: PT7M4S
  duration ms: 424826
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Evelyn Lear
  by artist: Fritz Wunderlich
  by artist: RIAS Kammerchor
  by artist: Berliner Philharmoniker
  by artist: Karl Böhm
  in album: Fritz Wunderlich singt Mozart
    type: MusicAlbum
    date published: 2010-01-01
  genre: classical
  genre: classical-era
  isrc code: DEF056430647
  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: Die Zauberflöte, K. 620 / Zweiter Aufzug: "Tamino mein! O welch ein Glück!"

CopyrightID
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CopyrightStatus
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value: registered

CopyrightRegisteredAt
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value: 2026-07-07T01:47:56+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xe33e9994317506ba98b7c4ec46ae5735a81ebf782c4a10d780025c0b516f945d

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 957118

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056430647

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
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date published: 2026-07-08T03:20:19Z

Die Zauberflöte, K. 620 / Zweiter Aufzug: "Tamino mein! O welch ein Glück!"
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Handel: Tamerlano, HWV 18
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Suomalaisia kansanlauluja
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Raili Kostia
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Irmgard Seefried: Essentials
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track: 6 Lieder, Op. 17: No. 2, Ständchen
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Sibelius: Kullervo
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Centenary Edition 1913 - 2013 Berliner Philharmoniker
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The Recitals
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Oskar Merikannon lauluja
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Querschnitt durch das Kinderklassik-Repertoire
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Mozart: Die Zauberflote K620 - Highlights
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track: Die Zauberflöte, K. 620, Act II: No. 16, Trio. Seid uns zum zweiten Mal willkommen
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track: Die Zauberflöte, K. 620, Act II: No. 21, Finale: g. Duet. Pa-Pa-Pa-Pa-Pa-Pa-Papagena!

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OpenTimestamps Proof of Existence
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Die Zauberflöte, K. 620, Act I: No. 7, Duet. Bei Männern, welche Liebe fühlen
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Die Zauberflöte, K. 620, Act II: No. 10, O Isis und Osiris
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  date published: 2026-07-06T06:56:49Z
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  date published: 2026-07-06T06:56:49Z
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Die Zauberflöte, K. 620, Act II: No. 17, Ach, ich fühl's
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Die Zauberflöte, K. 620, Act II: No. 18, O Isis und Osiris, welche Wonne "Chorus of the Priests"
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Die Zauberflöte, K. 620, Act II: No. 21, Finale: g. Duet. Pa-Pa-Pa-Pa-Pa-Pa-Papagena!
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  date published: 2026-07-02T03:30:09Z
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Ferdinand Leitner Anniversary Edition
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Brahms: Liebeslieder-Walzer; Neue Liebeslieder-Walzer
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