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description: Katharina Konradi is a Kyrgyzstani/German operatic soprano based in Germany. She has performed at major opera houses, especially Sophie (Der Rosenkavalier), Gilda (Rigoletto) and Susanna (Le Nozze di
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album: Mozart: Krönungsmesse, K. 317 & Other Choral Works (Live)
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Missa brevis in F Major, K. 192: I. Kyrie
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  date published: 2026-07-02T05:09:12Z
audio: Missa brevis in F Major, K. 192: I. Kyrie
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Missa brevis in F Major, K. 192: III. Credo
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  date published: 2026-07-02T03:55:08Z
audio: Missa brevis in F Major, K. 192: III. Credo
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Missa brevis in F Major, K. 192: V. Benedictus - Hosanna da capo
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audio: Missa brevis in F Major, K. 192: V. Benedictus - Hosanna da capo
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Missa brevis in F Major, K. 192: VI. Agnus Dei
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by artist: Sarah Romberger
by artist: Martin Mitterrutzner
by artist: Cologne Cathedral Vocal Ensemble
by artist: Cologne Chamber Orchestra
by artist: Christoph Poppen
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genre: classical
genre: classical-era
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Missa brevis in F Major, K. 192: VI. Agnus Dei
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Symphony No. 1, Op. 11: II. Andante
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by artist: Tonhalle-Orchester Zürich
by artist: Paavo Järvi
in album: Mendelssohn: Symphonies
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 1, Op. 11: II. Andante
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Symphony No. 1, Op. 11: III. Menuetto: Allegro molto - Trio
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duration: PT5M18S
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by artist: Tonhalle-Orchester Zürich
by artist: Paavo Järvi
in album: Mendelssohn: Symphonies
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Symphony No. 1, Op. 11: III. Menuetto: Allegro molto - Trio
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Symphony No. 2, Op. 52, "Lobgesang": I. Sinfonia: III. Adagio religioso
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by artist: Tonhalle-Orchester Zürich
by artist: Paavo Järvi
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genre: classical
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 2, Op. 52, "Lobgesang": I. Sinfonia: III. Adagio religioso
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Symphony No. 3, Op. 56, "Scottish": III. Adagio
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duration: PT9M40S
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by artist: Felix Mendelssohn
by artist: Tonhalle-Orchester Zürich
by artist: Paavo Järvi
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genre: classical
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 3, Op. 56, "Scottish": III. Adagio
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A Midsummer Night's Dream, Op. 61: No. 5, Intermezzo. Allegro appassionato
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by artist: Tonhalle-Orchester Zürich
by artist: Paavo Järvi
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genre: classical
genre: early-romantic-era
genre: german-romanticism
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: A Midsummer Night's Dream, Op. 61: No. 5, Intermezzo. Allegro appassionato
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Symphony No. 2, Op. 52, "Lobgesang": IV. Chor: Saget es, die ihr erlöset seid
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by artist: Tonhalle-Orchester Zürich
by artist: Paavo Järvi
by artist: Zürcher Sing-Akademie
by artist: Florian Helgath
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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Symphony No. 5, Op. 107, "Reformation": III. Andante
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subject of: OpenTimestamps Proof of Existence
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Symphony No. 4, Op. 90, "Italian": III. Con moto moderato
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Symphony No. 4, Op. 90, "Italian": IV. Saltarello. Presto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Symphony No. 4, Op. 90, "Italian": IV. Saltarello. Presto
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Symphony No. 2, Op. 52, "Lobgesang": VIII. Choral: Nun danket alle Gott
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 2, Op. 52, "Lobgesang": VIII. Choral: Nun danket alle Gott
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Mayr: I Cherusci
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date published: 2019-02-08

Mozart: Complete Masses, Vol. 2
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date published: 2022-11-18

Gedankenverloren
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date published: 2018-03-02

Fauré & Franck: Great Recordings
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    date published: 2026-07-08T03:22:41Z
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track: 2 Duets, Op. 10: No. 1, Puisqu'ici-bas toute âme
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track: 5 Mélodies de Venise, Op. 58: No. 3, Green
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5 Mélodies de Venise, Op. 58: No. 3, Green
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Violin Sonata in A Major, FWV 8: III. Recitativo - Fantasia (Ben moderato)
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Solitude
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Insomnia
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Russian Roots
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Strauss, Mozart & Schubert: Liebende
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Fauré: 2 Duets, Op. 10: No. 1, Puisqu'ici-bas toute âme
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Der Zwerg, D. 771
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Nacht und Träume, D. 827
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date published: 2023-03-31

An die untergehende Sonne, D. 457
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date published: 2023-03-17

Mozart: Complete Masses, Vol. 4
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track: Missa brevis in G Major, K. 140 "Pastoral": IV. Sanctus
track: Missa brevis in G Major, K. 140 "Pastoral": VI. Agnus Dei
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Mozart: Complete Masses, Vol. 4
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  value: https://explorer.copyrightchains.com/tx/0x2a7b7def21c57df1a7fc227aef7c54033c4da6724029af4d40ee7602fd6bc8d3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI192411907
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0x2a7b7def21c57df1a7fc227aef7c54033c4da6724029af4d40ee7602fd6bc8d3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HKI192411907.
  date published: 2026-06-13T13:32:09Z
audio: Mass in C Major, K. 66 "Dominicus": I. Kyrie
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.938
  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: 0.23
  additional property: Energy
    type: PropertyValue
    value: 0.059
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.396
  additional property: Liveness
    type: PropertyValue
    value: 0.066
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.139
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.617
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mass in C Major, K. 66 "Dominicus": II. Gloria
type: MusicRecording
duration: PT16M25S
duration ms: 985680
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Katharina Ruckgaber
by artist: Elvira Bill
by artist: Paul Schweinester
by artist: Cologne Cathedral Vocal Ensemble
by artist: Cologne Chamber Orchestra
by artist: Christoph Poppen
in album: Mozart: Complete Masses, Vol. 4
  type: MusicAlbum
  date published: 2025-02-28
genre: classical
genre: classical-era
isrc code: HKI192411908
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T08:37:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0fc069ce06cc0b76b4cee146590a7b022605bfa446148d617f6fda30f9dd38c8
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/HKI192411908
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 0x0fc069ce06cc0b76b4cee146590a7b022605bfa446148d617f6fda30f9dd38c8. 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/HKI192411908.
  date published: 2026-07-02T05:09:12Z
audio: Mass in C Major, K. 66 "Dominicus": II. Gloria
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.253
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.17
  additional property: Energy
    type: PropertyValue
    value: 0.056
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.974
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.015
  additional property: Liveness
    type: PropertyValue
    value: 0.123
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.085
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.492
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mass in C Major, K. 66 "Dominicus": III. Credo
type: MusicRecording
duration: PT13M32S
duration ms: 812880
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Katharina Ruckgaber
by artist: Elvira Bill
by artist: Paul Schweinester
by artist: Jonas Müller
by artist: Cologne Cathedral Vocal Ensemble
by artist: Cologne Chamber Orchestra
by artist: Christoph Poppen
in album: Mozart: Complete Masses, Vol. 4
  type: MusicAlbum
  date published: 2025-02-28
genre: classical
genre: classical-era
isrc code: HKI192411909
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T08:28:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd9bf0dea2952c450c507cd56326f535fc81506367aa6e695db0492180e8f9e27
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/HKI192411909
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 0xd9bf0dea2952c450c507cd56326f535fc81506367aa6e695db0492180e8f9e27. 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/HKI192411909.
  date published: 2026-07-02T05:09:12Z
audio: Mass in C Major, K. 66 "Dominicus": III. Credo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.182
  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: 0.263
  additional property: Energy
    type: PropertyValue
    value: 0.087
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.032
  additional property: Liveness
    type: PropertyValue
    value: 0.152
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.064
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.395
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mass in C Major, K. 66 "Dominicus": IV. Sanctus
type: MusicRecording
duration: PT2M2S
duration ms: 122626
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Katharina Ruckgaber
by artist: Elvira Bill
by artist: Cologne Cathedral Vocal Ensemble
by artist: Cologne Chamber Orchestra
by artist: Christoph Poppen
in album: Mozart: Complete Masses, Vol. 4
  type: MusicAlbum
  date published: 2025-02-28
genre: classical
genre: classical-era
isrc code: HKI192411910
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T08:22:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x719fa87a0fbf14781b3a769be82911571556d5fd9d78fe12e99c33294e8b88fc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI192411910
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0x719fa87a0fbf14781b3a769be82911571556d5fd9d78fe12e99c33294e8b88fc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HKI192411910.
  date published: 2026-07-02T03:55:08Z
audio: Mass in C Major, K. 66 "Dominicus": IV. Sanctus
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.082
  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: 0.228
  additional property: Energy
    type: PropertyValue
    value: 0.152
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.579
  additional property: Liveness
    type: PropertyValue
    value: 0.122
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.225
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.61
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mass in C Major, K. 66 "Dominicus": V. Benedictus
type: MusicRecording
duration: PT2M12S
duration ms: 132266
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Katharina Ruckgaber
by artist: Elvira Bill
by artist: Paul Schweinester
by artist: Jonas Müller
by artist: Cologne Cathedral Vocal Ensemble
by artist: Cologne Chamber Orchestra
by artist: Christoph Poppen
in album: Mozart: Complete Masses, Vol. 4
  type: MusicAlbum
  date published: 2025-02-28
genre: classical
genre: classical-era
isrc code: HKI192411911
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T07:21:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3a39592310178bdd0eae9404dd626891a474b5d19c1746a436bef53927928ec5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI192411911
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0x3a39592310178bdd0eae9404dd626891a474b5d19c1746a436bef53927928ec5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HKI192411911.
  date published: 2026-07-02T03:55:08Z
audio: Mass in C Major, K. 66 "Dominicus": V. Benedictus
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.26
  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: 0.207
  additional property: Energy
    type: PropertyValue
    value: 0.099
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.134
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.264
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.811
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mass in C Major, K. 66 "Dominicus": VI. Agnus Dei
type: MusicRecording
duration: PT4M8S
duration ms: 248480
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Katharina Ruckgaber
by artist: Elvira Bill
by artist: Paul Schweinester
by artist: Jonas Müller
by artist: Cologne Cathedral Vocal Ensemble
by artist: Cologne Chamber Orchestra
by artist: Christoph Poppen
in album: Mozart: Complete Masses, Vol. 4
  type: MusicAlbum
  date published: 2025-02-28
genre: classical
genre: classical-era
isrc code: HKI192411912
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-22T12:34:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe73ccb24c534dda7c3e012d34a21056e3e4c113bb54e7eb941d4608075624627
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959137
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959137
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI192411912
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T15:37:30Z
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 0xe73ccb24c534dda7c3e012d34a21056e3e4c113bb54e7eb941d4608075624627. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T15:37:30Z), 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/HKI192411912.
  date published: 2026-07-22T15:37:30Z
audio: Mass in C Major, K. 66 "Dominicus": VI. Agnus Dei
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.153
  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: 0.286
  additional property: Energy
    type: PropertyValue
    value: 0.077
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.078
  additional property: Liveness
    type: PropertyValue
    value: 0.078
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.249
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.304
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Missa brevis in F Major, K. 192: IV. Sanctus
type: MusicRecording
duration: PT1M23S
duration ms: 83280
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Cologne Cathedral Vocal Ensemble
by artist: Cologne Chamber Orchestra
by artist: Christoph Poppen
in album: Mozart: Complete Masses, Vol. 4
  type: MusicAlbum
  date published: 2025-02-28
genre: classical
genre: classical-era
isrc code: HKI192411916
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-22T12:37:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfa562f7937947ecf7bf8e94b1491aa66393c193d97f31a4acefb1536b57167a8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959134
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959134
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI192411916
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T15:40:08Z
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 0xfa562f7937947ecf7bf8e94b1491aa66393c193d97f31a4acefb1536b57167a8. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T15:40:08Z), 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/HKI192411916.
  date published: 2026-07-22T15:40:08Z
audio: Missa brevis in F Major, K. 192: IV. Sanctus
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.875
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.248
  additional property: Energy
    type: PropertyValue
    value: 0.073
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.878
  additional property: Liveness
    type: PropertyValue
    value: 0.142
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.07
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.641
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
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  by artist: Akademie für Alte Musik Berlin
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
  audio: Keyboard Sonata in C Major, K. 329 (Live)
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  by artist: Steve Davislim
  by artist: Krešimir Stražanac
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  by artist: Akademie für Alte Musik Berlin
  by artist: Howard Arman
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  subject of: OpenTimestamps Proof of Existence
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track: Alma Dei creatoris, K. 277 (Live)
track: Vesperae de Dominica, K. 321: No. 1, Dixit (Live)

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OTSTimestamp
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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:53:27Z

Krönungsmesse, K. 317: No. 3, Credo (Live)
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Alma Dei creatoris, K. 277 (Live)
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by artist: Akademie für Alte Musik Berlin
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Alma Dei creatoris, K. 277 (Live)
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Vesperae de Dominica, K. 321: No. 1, Dixit (Live)
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Vesperae de Dominica, K. 321: No. 1, Dixit (Live)
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Mozart: Coronation Mass, K. 317
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    date published: 2026-07-08T03:20:19Z
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7230107be0da7a4261b0ab90413260efa7e529e0ba042e799788b6dc2b6756. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DELW72284003.
    date published: 2026-07-08T03:53:27Z
  audio: Coronation Mass, K. 317: III. Credo
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.572
    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: 0.385
    additional property: Energy
      type: PropertyValue
      value: 0.241
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.947
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.075
    additional property: Liveness
      type: PropertyValue
      value: 0.295
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.171
    additional property: Loudness (dB)
      type: PropertyValue
      value: -21.39
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major