Konzertvereinigung Wiener Staatsopernchor
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description: thumb|upright=1.2| The Konzertvereinigung Wiener Staatsopernchor is an Austrian mixed choir of classical music and is formed by members from the Chor der Wiener Staatsoper. History In 1927, Viktor
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album: Mozart: Symphony No. 25 in G Minor & Requiem in D Minor (Live)
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album: Mahler: Symphonies Nos. 1 - 10 & Kindertotenlieder
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  date published: 1983
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    subject of: OpenTimestamps Proof of Existence
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  track: Symphony No. 2 in C Minor "Resurrection": IV. Urlicht. Sehr feierlich, aber schlicht
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    subject of: OpenTimestamps Proof of Existence
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  track: Symphony No. 1 in D Major "Titan": IIIa. Feierlich und gemessen, ohne zu schleppen
album: Die Entführung aus dem Serail
album: Mozart: Die Zauberflöte, K. 620 (Live)
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album: Johann Strauss II: La chauve-souris (Les indispensables de Diapason)
album: Mozart : "Great Mass" in C, K.427 (417a)

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Symphony No. 1 in D Major "Titan": IIIa. Feierlich und gemessen, ohne zu schleppen
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subject of: OpenTimestamps Proof of Existence
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Die Entführung aus dem Serail
type: MusicAlbum
date published: 1992-04-02
track: Die Entführung aus dem Serail, K. 384: Ouverture
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    date published: 2026-07-08T03:20:19Z
  audio: Die Entführung aus dem Serail, K. 384: Ouverture
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track: Die Entführung aus dem Serail, K. 384: Act I: Nr. 1 Aria: Hier soll ich dich denn sehen
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  subject of: OpenTimestamps Proof of Existence
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  audio: Die Entführung aus dem Serail, K. 384: Act I: Nr. 1 Aria: Hier soll ich dich denn sehen
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track: Die Entführung aus dem Serail, K. 384: Nr. 12 Arie: Welche Wonne, welche Lust
track: Die Entführung aus dem Serail, K. 384: Nr. 2 Lied und Duett: Wer ein Liebchen hat gefunden
track: Die Entführung aus dem Serail, K. 384: Dialog: Nun, Osmin, wie steht's?
track: Die Entführung aus dem Serail, K. 384: Nr. 3 Arie: Solche hergelauf'ne Laffen
track: Die Entführung aus dem Serail, K. 384: Nr. 14 Duett: Vivat Bacchus!
track: Die Entführung aus dem Serail, K. 384: Dialog: Geh'nur, verwünschter Aufpasser
track: Die Entführung aus dem Serail, K. 384: Nr. 4 Rezitativ und Arie: Konstanze! dich wiederzusehen!
track: Die Entführung aus dem Serail, K. 384: Nr. 15 Arie: Wenn der Freude Tränen Fliessen
track: Die Entführung aus dem Serail, K. 384: Nr. 5b Chor: Singt dem grossen Bassa Lieder
track: Die Entführung aus dem Serail, K. 384: Nr. 16 Quartett: Ach, Belmonte! ach, mein Leben!
track: Die Entführung aus dem Serail, K. 384: Nr. 6 Arie: Ach, ich liebte
track: Die Entführung aus dem Serail, K. 384: Nr. 7 Terzett: Marsch! marsch! marsch!
track: Die Entführung aus dem Serail, K. 384: Nr. 18 Romanze: Im Mohrenland gefangen war
track: Die Entführung aus dem Serail, K. 384: Nr. 8 Arie: Durch Zärtlichkeit und Schmeicheln
track: Die Entführung aus dem Serail, K. 384: Nr. 19 Arie: O, wie will ich triumphieren
track: Die Entführung aus dem Serail, K. 384: Nr. 20 Rezitativ und Duett: Welch ein Geschick!
track: Die Entführung aus dem Serail, K. 384: Nr. 10 Rezitativ und Arie: Welcher Wechsel herrscht in meiner Seele...Traurigkeit ward mir zum Lose
track: Die Entführung aus dem Serail, K. 384: Nr. 21a Vaudeville: Nie werd' ich deine Huld verkennen
track: Die Entführung aus dem Serail, K. 384: Nr. 11 Arie: Martern aller Arten
track: Die Entführung aus dem Serail, K. 384: Nr. 21b Chor: Bassa Selim lebe lange!

Die Entführung aus dem Serail, K. 384: Nr. 12 Arie: Welche Wonne, welche Lust
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duration: PT2M34S
duration ms: 154160
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bruno Weil
by artist: Elzbieta Szmytka
by artist: Wiener Symphoniker
by artist: Michael Heltau
by artist: Cheryl Studer
by artist: Kurt Streit
by artist: Robert Gambill
by artist: Gunter Missenhardt
in album: Die Entführung aus dem Serail
  type: MusicAlbum
  date published: 1992-04-02
popularity: 3
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USSM10107482
additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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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/USSM10107482
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 0x905fa475b5d535d77409327546b39bd77a1ccfdee77e249422ad5062c04da7f9. 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/USSM10107482.
  date published: 2026-07-08T03:20:19Z
audio: Die Entführung aus dem Serail, K. 384: Nr. 12 Arie: Welche Wonne, welche Lust
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Die Entführung aus dem Serail, K. 384: Nr. 2 Lied und Duett: Wer ein Liebchen hat gefunden
type: MusicRecording
duration: PT6M32S
duration ms: 392893
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bruno Weil
by artist: Kurt Streit
by artist: Gunther Missenhardt
by artist: Wiener Symphoniker
by artist: Michael Heltau
by artist: Cheryl Studer
by artist: Elzbieta Szmytka
by artist: Robert Gambill
in album: Die Entführung aus dem Serail
  type: MusicAlbum
  date published: 1992-04-02
popularity: 2
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USSM10107464
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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/USSM10107464
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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  date published: 2026-07-08T03:20:19Z
audio: Die Entführung aus dem Serail, K. 384: Nr. 2 Lied und Duett: Wer ein Liebchen hat gefunden
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Die Entführung aus dem Serail, K. 384: Dialog: Nun, Osmin, wie steht's?
type: MusicRecording
duration: PT0M34S
duration ms: 34733
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bruno Weil
by artist: Robert Gambill
by artist: Gunther Missenhardt
by artist: Michael Heltau
by artist: Cheryl Studer
by artist: Elzbieta Szmytka
by artist: Kurt Streit
by artist: Wiener Symphoniker
in album: Die Entführung aus dem Serail
  type: MusicAlbum
  date published: 1992-04-02
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USSM10107465
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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  value: 2026-07-31T23:20:35+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/960478
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10107465
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:30:38Z
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: 2026-07-31T23:30:38Z
audio: Die Entführung aus dem Serail, K. 384: Dialog: Nun, Osmin, wie steht's?
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Die Entführung aus dem Serail, K. 384: Nr. 3 Arie: Solche hergelauf'ne Laffen
type: MusicRecording
duration: PT4M58S
duration ms: 298800
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bruno Weil
by artist: Robert Gambill
by artist: Gunther Missenhardt
by artist: Wiener Symphoniker
by artist: Michael Heltau
by artist: Cheryl Studer
by artist: Elzbieta Szmytka
by artist: Kurt Streit
in album: Die Entführung aus dem Serail
  type: MusicAlbum
  date published: 1992-04-02
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USSM10107466
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T07:42:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb8c35d0ce91d25e49e6aef6af53471799cdaaface4dab178dff5346ed9b0f677
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/USSM10107466
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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  date published: 2026-07-08T03:20:19Z
audio: Die Entführung aus dem Serail, K. 384: Nr. 3 Arie: Solche hergelauf'ne Laffen
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Die Entführung aus dem Serail, K. 384: Nr. 14 Duett: Vivat Bacchus!
type: MusicRecording
duration: PT2M3S
duration ms: 123733
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bruno Weil
by artist: Robert Gambill
by artist: Gunther Missenhardt
by artist: Wiener Symphoniker
by artist: Michael Heltau
by artist: Cheryl Studer
by artist: Elzbieta Szmytka
by artist: Kurt Streit
in album: Die Entführung aus dem Serail
  type: MusicAlbum
  date published: 1992-04-02
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USSM10107485
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T12:55:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb1873c09dbeb2f93cf44182e2d3b033566562607a5f4d882e7aa423a94ef0397
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960404
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10107485
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:06:57Z
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 0xb1873c09dbeb2f93cf44182e2d3b033566562607a5f4d882e7aa423a94ef0397. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/USSM10107485.
  date published: 2026-07-31T13:06:57Z
audio: Die Entführung aus dem Serail, K. 384: Nr. 14 Duett: Vivat Bacchus!
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  additional property: Musical Key
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  additional property: Valence (Positivity)
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Die Entführung aus dem Serail, K. 384: Dialog: Geh'nur, verwünschter Aufpasser
type: MusicRecording
duration: PT1M24S
duration ms: 84906
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bruno Weil
by artist: Kurt Streit
by artist: Robert Gambill
by artist: Michael Heltau
by artist: Cheryl Studer
by artist: Elzbieta Szmytka
by artist: Gunter Missenhardt
by artist: Wiener Symphoniker
in album: Die Entführung aus dem Serail
  type: MusicAlbum
  date published: 1992-04-02
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USSM10107467
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T18:49:28+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x96581b01fe087f2bfe3afdfdb6e1ce81d82f78c524e603f5d71c06f1fb62bbc5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
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/USSM10107467
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 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 0x96581b01fe087f2bfe3afdfdb6e1ce81d82f78c524e603f5d71c06f1fb62bbc5. 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/USSM10107467.
  date published: 2026-07-08T03:22:41Z
audio: Die Entführung aus dem Serail, K. 384: Dialog: Geh'nur, verwünschter Aufpasser
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.887
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.608
  additional property: Energy
    type: PropertyValue
    value: 0.046
  additional property: Speechiness
    type: PropertyValue
    value: 0.526
  additional property: Acousticness
    type: PropertyValue
    value: 0.566
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.142
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.222
  additional property: Loudness (dB)
    type: PropertyValue
    value: -34.987
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Entführung aus dem Serail, K. 384: Nr. 4 Rezitativ und Arie: Konstanze! dich wiederzusehen!
type: MusicRecording
duration: PT5M26S
duration ms: 326866
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bruno Weil
by artist: Kurt Streit
by artist: Robert Gambill
by artist: Wiener Symphoniker
by artist: Michael Heltau
by artist: Cheryl Studer
by artist: Elzbieta Szmytka
by artist: Gunter Missenhardt
in album: Die Entführung aus dem Serail
  type: MusicAlbum
  date published: 1992-04-02
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USSM10107468
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T09:12:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc4c74a3596cd989919a941ee0e5b579cd2d7a84146a9517bbf829d9d8b20c2a7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960379
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960379
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10107468
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T09:25:34Z
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 0xc4c74a3596cd989919a941ee0e5b579cd2d7a84146a9517bbf829d9d8b20c2a7. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/USSM10107468.
  date published: 2026-07-31T09:25:34Z
audio: Die Entführung aus dem Serail, K. 384: Nr. 4 Rezitativ und Arie: Konstanze! dich wiederzusehen!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.967
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.328
  additional property: Energy
    type: PropertyValue
    value: 0.095
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.249
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.152
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.038
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Entführung aus dem Serail, K. 384: Nr. 15 Arie: Wenn der Freude Tränen Fliessen
type: MusicRecording
duration: PT4M59S
duration ms: 299200
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bruno Weil
by artist: Kurt Streit
by artist: Wiener Symphoniker
in album: Die Entführung aus dem Serail
  type: MusicAlbum
  date published: 1992-04-02
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USSM10107487
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T14:02:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe05015c37c9ab4455aa022d5927939240a88234ca89737109f98cf318ec452b1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960418
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960418
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10107487
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15Z
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 0xe05015c37c9ab4455aa022d5927939240a88234ca89737109f98cf318ec452b1. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USSM10107487.
  date published: 2026-07-31T15:20:15Z
audio: Die Entführung aus dem Serail, K. 384: Nr. 15 Arie: Wenn der Freude Tränen Fliessen
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.17
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.306
  additional property: Energy
    type: PropertyValue
    value: 0.058
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.989
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.01
  additional property: Liveness
    type: PropertyValue
    value: 0.07
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.125
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.3
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Entführung aus dem Serail, K. 384: Nr. 5b Chor: Singt dem grossen Bassa Lieder
type: MusicRecording
duration: PT1M34S
duration ms: 94560
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bruno Weil
by artist: Konzertvereinigung Wiener Staatsopernchor
by artist: Wiener Symphoniker
by artist: Michael Heltau
by artist: Cheryl Studer
by artist: Elzbieta Szmytka
by artist: Kurt Streit
by artist: Robert Gambill
by artist: Gunter Missenhardt
in album: Die Entführung aus dem Serail
  type: MusicAlbum
  date published: 1992-04-02
popularity: 2
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USSM10107469
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:10:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdff5cefe241ef4bfe0d66141e52a18bf4488bbb4b431ca0202aef375ae035ba7
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/USSM10107469
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 0xdff5cefe241ef4bfe0d66141e52a18bf4488bbb4b431ca0202aef375ae035ba7. 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/USSM10107469.
  date published: 2026-07-08T03:20:19Z
audio: Die Entführung aus dem Serail, K. 384: Nr. 5b Chor: Singt dem grossen Bassa Lieder
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.692
  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: 0.533
  additional property: Energy
    type: PropertyValue
    value: 0.426
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.904
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.01
  additional property: Liveness
    type: PropertyValue
    value: 0.164
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.69
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.253
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Entführung aus dem Serail, K. 384: Nr. 16 Quartett: Ach, Belmonte! ach, mein Leben!
type: MusicRecording
duration: PT10M20S
duration ms: 620173
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bruno Weil
by artist: Kurt Streit
by artist: Robert Gambill
by artist: Cheryl Studer
by artist: Elzbieta Szmytka
by artist: Wiener Symphoniker
by artist: Michael Heltau
by artist: Gunter Missenhardt
in album: Die Entführung aus dem Serail
  type: MusicAlbum
  date published: 1992-04-02
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USSM10107488
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T18:36:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x177b4d8fa3697724d3102bc40b566869393e0b05e0c28b54b7e673910f6f1821
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
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/USSM10107488
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 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 0x177b4d8fa3697724d3102bc40b566869393e0b05e0c28b54b7e673910f6f1821. 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/USSM10107488.
  date published: 2026-07-08T03:22:41Z
audio: Die Entführung aus dem Serail, K. 384: Nr. 16 Quartett: Ach, Belmonte! ach, mein Leben!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.008
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.278
  additional property: Energy
    type: PropertyValue
    value: 0.2
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.974
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.133
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.172
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.349
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Entführung aus dem Serail, K. 384: Nr. 6 Arie: Ach, ich liebte
type: MusicRecording
duration: PT4M59S
duration ms: 299333
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bruno Weil
by artist: Cheryl Studer
by artist: Wiener Symphoniker
by artist: Michael Heltau
by artist: Elzbieta Szmytka
by artist: Kurt Streit
by artist: Robert Gambill
by artist: Gunter Missenhardt
in album: Die Entführung aus dem Serail
  type: MusicAlbum
  date published: 1992-04-02
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USSM10107471
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T09:43:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa98d4cb60ac74122f2d6265eb678cfe375b2e8614dcf632cb023ea61bdc1a5a7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960383
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960383
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10107471
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T09:50:37Z
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 0xa98d4cb60ac74122f2d6265eb678cfe375b2e8614dcf632cb023ea61bdc1a5a7. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/USSM10107471.
  date published: 2026-07-31T09:50:37Z
audio: Die Entführung aus dem Serail, K. 384: Nr. 6 Arie: Ach, ich liebte
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.279
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.351
  additional property: Energy
    type: PropertyValue
    value: 0.095
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.97
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.244
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.138
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.67
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Entführung aus dem Serail, K. 384: Nr. 7 Terzett: Marsch! marsch! marsch!
type: MusicRecording
duration: PT2M12S
duration ms: 132133
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bruno Weil
by artist: Kurt Streit
by artist: Robert Gambill
by artist: Gunther Missenhardt
by artist: Wiener Symphoniker
by artist: Michael Heltau
by artist: Cheryl Studer
by artist: Elzbieta Szmytka
in album: Die Entführung aus dem Serail
  type: MusicAlbum
  date published: 1992-04-02
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USSM10107473
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T04:48:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xde54c63c69fbf9058ca657d6227c07b7206f3f68b1f53d1ca1c2f53ff58f90a6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960348
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960348
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10107473
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T05:17:02Z
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 0xde54c63c69fbf9058ca657d6227c07b7206f3f68b1f53d1ca1c2f53ff58f90a6. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USSM10107473.
  date published: 2026-07-31T05:17:02Z
audio: Die Entführung aus dem Serail, K. 384: Nr. 7 Terzett: Marsch! marsch! marsch!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 149.596
  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: 0.469
  additional property: Energy
    type: PropertyValue
    value: 0.467
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.952
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.557
  additional property: Liveness
    type: PropertyValue
    value: 0.325
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.76
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.589
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Entführung aus dem Serail, K. 384: Nr. 18 Romanze: Im Mohrenland gefangen war
type: MusicRecording
duration: PT2M32S
duration ms: 152893
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bruno Weil
by artist: Kurt Streit
by artist: Robert Gambill
by artist: Wiener Symphoniker
by artist: Michael Heltau
by artist: Cheryl Studer
by artist: Elzbieta Szmytka
by artist: Gunter Missenhardt
in album: Die Entführung aus dem Serail
  type: MusicAlbum
  date published: 1992-04-02
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USSM10107492
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T09:56:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8f5e08ccd9a8474e7129d31cbc1571f7ddfd6d98d03192bf5985343850017d7f
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/USSM10107492
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 0x8f5e08ccd9a8474e7129d31cbc1571f7ddfd6d98d03192bf5985343850017d7f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10107492.
  date published: 2026-07-31T10:20:10Z
audio: Die Entführung aus dem Serail, K. 384: Nr. 18 Romanze: Im Mohrenland gefangen war
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 171.587
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.448
  additional property: Energy
    type: PropertyValue
    value: 0.078
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.953
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.115
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.44
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.248
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Entführung aus dem Serail, K. 384: Nr. 8 Arie: Durch Zärtlichkeit und Schmeicheln
type: MusicRecording
duration: PT3M22S
duration ms: 202493
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bruno Weil
by artist: Elzbieta Szmytka
by artist: Wiener Symphoniker
by artist: Michael Heltau
by artist: Cheryl Studer
by artist: Kurt Streit
by artist: Robert Gambill
by artist: Gunter Missenhardt
in album: Die Entführung aus dem Serail
  type: MusicAlbum
  date published: 1992-04-02
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USSM10107475
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T11:56:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcc175c737dbec2c0e8d49b6d51537b617c3a0adc80648f4bff3b549026409505
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/USSM10107475
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 0xcc175c737dbec2c0e8d49b6d51537b617c3a0adc80648f4bff3b549026409505. 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/USSM10107475.
  date published: 2026-07-08T03:20:19Z
audio: Die Entführung aus dem Serail, K. 384: Nr. 8 Arie: Durch Zärtlichkeit und Schmeicheln
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.346
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.374
  additional property: Energy
    type: PropertyValue
    value: 0.05
  additional property: Speechiness
    type: PropertyValue
    value: 0.07
  additional property: Acousticness
    type: PropertyValue
    value: 0.963
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.333
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.161
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.446
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Entführung aus dem Serail, K. 384: Nr. 19 Arie: O, wie will ich triumphieren
type: MusicRecording
duration: PT3M34S
duration ms: 214600
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bruno Weil
by artist: Gunther Missenhardt
by artist: Wiener Symphoniker
by artist: Michael Heltau
by artist: Cheryl Studer
by artist: Elzbieta Szmytka
by artist: Kurt Streit
by artist: Robert Gambill
in album: Die Entführung aus dem Serail
  type: MusicAlbum
  date published: 1992-04-02
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USSM10107494
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T17:22:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc4790d3b99fcefc99f33f376000f574417108cd09ae4c1f2e442a96dd925f5b7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960441
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960441
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10107494
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T17:29:52Z
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 0xc4790d3b99fcefc99f33f376000f574417108cd09ae4c1f2e442a96dd925f5b7. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USSM10107494.
  date published: 2026-07-31T17:29:52Z
audio: Die Entführung aus dem Serail, K. 384: Nr. 19 Arie: O, wie will ich triumphieren
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 150.573
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.425
  additional property: Energy
    type: PropertyValue
    value: 0.204
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.215
  additional property: Liveness
    type: PropertyValue
    value: 0.078
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.506
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.774
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Entführung aus dem Serail, K. 384: Nr. 20 Rezitativ und Duett: Welch ein Geschick!
type: MusicRecording
duration: PT8M45S
duration ms: 525373
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bruno Weil
by artist: Kurt Streit
by artist: Cheryl Studer
by artist: Wiener Symphoniker
by artist: Michael Heltau
by artist: Elzbieta Szmytka
by artist: Robert Gambill
by artist: Gunter Missenhardt
in album: Die Entführung aus dem Serail
  type: MusicAlbum
  date published: 1992-04-02
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USSM10107496
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:41:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x20f8b166edec8bce0ab53281444da6536c13ad3409a0b4118923df56290d1d7e
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/USSM10107496
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 0x20f8b166edec8bce0ab53281444da6536c13ad3409a0b4118923df56290d1d7e. 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/USSM10107496.
  date published: 2026-07-08T03:20:19Z
audio: Die Entführung aus dem Serail, K. 384: Nr. 20 Rezitativ und Duett: Welch ein Geschick!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.896
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.253
  additional property: Energy
    type: PropertyValue
    value: 0.115
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.963
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.102
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.118
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.68
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Entführung aus dem Serail, K. 384: Nr. 10 Rezitativ und Arie: Welcher Wechsel herrscht in meiner Seele...Traurigkeit ward mir zum Lose
type: MusicRecording
duration: PT8M4S
duration ms: 484866
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bruno Weil
by artist: Cheryl Studer
by artist: Wiener Symphoniker
by artist: Michael Heltau
by artist: Elzbieta Szmytka
by artist: Kurt Streit
by artist: Robert Gambill
by artist: Gunter Missenhardt
in album: Die Entführung aus dem Serail
  type: MusicAlbum
  date published: 1992-04-02
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USSM10107478
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:34:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd033fbcee1f141ce6f2bbc83a37d50d97b75ff194560e47dd76eaf20de9067d1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
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/USSM10107478
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 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 0xd033fbcee1f141ce6f2bbc83a37d50d97b75ff194560e47dd76eaf20de9067d1. 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/USSM10107478.
  date published: 2026-07-08T03:22:41Z
audio: Die Entführung aus dem Serail, K. 384: Nr. 10 Rezitativ und Arie: Welcher Wechsel herrscht in meiner Seele...Traurigkeit ward mir zum Lose
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.934
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.214
  additional property: Energy
    type: PropertyValue
    value: 0.038
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.13
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.207
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Die Entführung aus dem Serail, K. 384: Nr. 21a Vaudeville: Nie werd' ich deine Huld verkennen
type: MusicRecording
duration: PT3M55S
duration ms: 235200
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bruno Weil
by artist: Kurt Streit
by artist: Robert Gambill
by artist: Cheryl Studer
by artist: Elzbieta Szmytka
by artist: Gunther Missenhardt
by artist: Wiener Symphoniker
by artist: Michael Heltau
in album: Die Entführung aus dem Serail
  type: MusicAlbum
  date published: 1992-04-02
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USSM10107498
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T23:43:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd2fea66c306ebc6e21709bbc313e32713fbdbfc80da44313206c7017b309c2a4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960481
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960481
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10107498
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:51:35Z
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 0xd2fea66c306ebc6e21709bbc313e32713fbdbfc80da44313206c7017b309c2a4. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/USSM10107498.
  date published: 2026-07-31T23:51:35Z
audio: Die Entführung aus dem Serail, K. 384: Nr. 21a Vaudeville: Nie werd' ich deine Huld verkennen
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.38
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.418
  additional property: Energy
    type: PropertyValue
    value: 0.234
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
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Die Entführung aus dem Serail, K. 384: Nr. 11 Arie: Martern aller Arten
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duration: PT8M43S
duration ms: 523266
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bruno Weil
by artist: Cheryl Studer
by artist: Wiener Symphoniker
by artist: Michael Heltau
by artist: Elzbieta Szmytka
by artist: Kurt Streit
by artist: Robert Gambill
by artist: Gunter Missenhardt
in album: Die Entführung aus dem Serail
  type: MusicAlbum
  date published: 1992-04-02
popularity: 3
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: USSM10107480
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10107480
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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  date published: 2026-07-08T03:20:19Z
audio: Die Entführung aus dem Serail, K. 384: Nr. 11 Arie: Martern aller Arten
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Die Entführung aus dem Serail, K. 384: Nr. 21b Chor: Bassa Selim lebe lange!
type: MusicRecording
duration: PT1M25S
duration ms: 85866
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bruno Weil
by artist: Konzertvereinigung Wiener Staatsopernchor
by artist: Wiener Symphoniker
by artist: Michael Heltau
by artist: Cheryl Studer
by artist: Elzbieta Szmytka
by artist: Kurt Streit
by artist: Robert Gambill
by artist: Gunter Missenhardt
in album: Die Entführung aus dem Serail
  type: MusicAlbum
  date published: 1992-04-02
popularity: 3
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
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additional property: CopyrightID
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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/USSM10107499
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad5e429596d104363b6843996c4074a0d04b8939e3893a83b497af8534c2b64. 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/USSM10107499.
  date published: 2026-07-08T03:20:19Z
audio: Die Entführung aus dem Serail, K. 384: Nr. 21b Chor: Bassa Selim lebe lange!
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Mozart: Die Zauberflöte, K. 620 (Live)
type: MusicAlbum
date published: 2020-09-04

Mahler: Symphony No. 2 – Bruno Walter, Wiener Philharmoniker (Toblach Ausgabe)
type: MusicAlbum
date published: 2018-03-23

Mahler: Symphony No. 8 in E-Flat Major "Symphony of a Thousand" (Live)
type: MusicAlbum
date published: 2019-02-08

Beethoven: Fidelio, Op. 72 (Live)
type: MusicAlbum
date published: 2019-03-08

Mahler: Symphony No. 2 in C Minor "Resurrection" (Live)
type: MusicAlbum
date published: 2019-03-15

Johann Strauss II: La chauve-souris (Les indispensables de Diapason)
type: MusicAlbum
date published: 2018-01-25

Mozart : "Great Mass" in C, K.427 (417a)
type: MusicAlbum
date published: 1985
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  by artist: Wolfgang Amadeus Mozart
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  by artist: Konzertvereinigung Wiener Staatsopernchor
  by artist: Krisztina Láki
  by artist: Concentus Musicus Wien
  in album: Mozart : "Great Mass" in C, K.427 (417a)
    type: MusicAlbum
    date published: 1985
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: DEA808500301
  additional property: CopyrightID
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    type: PropertyValue
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960254
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA808500301
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T12:06:10Z
  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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0621880f426c374c6bbf18ea1e87065c7268af0731b11694189ad9ddd9b7eaeb. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA808500301.
    date published: 2026-07-30T12:06:10Z
  audio: Mozart: Mass No. 18 in C Minor, K. 427 "Great Mass": I. Kyrie
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track: Mozart: Mass No. 18 in C Minor, K. 427 "Great Mass": II. Gloria
  type: MusicRecording
  duration: PT2M28S
  duration ms: 148733
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Concentus Musicus Wien
  by artist: Nikolaus Harnoncourt
  by artist: Konzertvereinigung Wiener Staatsopernchor
  in album: Mozart : "Great Mass" in C, K.427 (417a)
    type: MusicAlbum
    date published: 1985
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
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  additional property: CopyrightID
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    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA808500302
  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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    date published: 2026-07-31T19:53:13Z
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track: Mozart: Mass No. 18 in C Minor, K. 427 "Great Mass": III. Laudamus te
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  by artist: Wolfgang Amadeus Mozart
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  by artist: Krisztina Láki
  by artist: Concentus Musicus Wien
  in album: Mozart : "Great Mass" in C, K.427 (417a)
    type: MusicAlbum
    date published: 1985
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
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  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: Mozart: Mass No. 18 in C Minor, K. 427 "Great Mass": III. Laudamus te
track: Mozart: Mass No. 18 in C Minor, K. 427 "Great Mass": V. Domine Deus
track: Mozart: Mass No. 18 in C Minor, K. 427 "Great Mass": VI. Qui tollis
track: Mozart: Mass No. 18 in C Minor, K. 427 "Great Mass": XI. Et incarnatus est
track: Mozart: Mass No. 18 in C Minor, K. 427 "Great Mass": XII. Sanctus

CopyrightID
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CopyrightRegisteredAt
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960291

OTSVerificationAPI
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value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA808500303

OTSTimestamp
type: PropertyValue
value: 2026-07-30T18:23:33Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386911dbc1f4a3f54e474680876da8e7413ab0b5e61b7100a03de30f4f718bc9. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEA808500303.
date published: 2026-07-30T18:23:33Z

Mozart: Mass No. 18 in C Minor, K. 427 "Great Mass": III. Laudamus te
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additional property: Tempo (BPM)
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Mozart: Mass No. 18 in C Minor, K. 427 "Great Mass": V. Domine Deus
type: MusicRecording
duration: PT2M50S
duration ms: 170760
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Nikolaus Harnoncourt
by artist: Krisztina Láki
by artist: Zsuzsanna Dénes
by artist: Concentus Musicus Wien
in album: Mozart : "Great Mass" in C, K.427 (417a)
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  date published: 1985
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Mozart: Mass No. 18 in C Minor, K. 427 "Great Mass": V. Domine Deus
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subject of: OpenTimestamps Proof of Existence
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Mozart: Mass No. 18 in C Minor, K. 427 "Great Mass": XI. Et incarnatus est
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subject of: OpenTimestamps Proof of Existence
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Mozart: Mass No. 18 in C Minor, K. 427 "Great Mass": XII. Sanctus
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T20:22:46Z
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