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genre: classical
genre: opera
genre: requiem
popularity: 20
followers: 185
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  track: Der Schauspieldirektor, K.486: Ich bin die erste Sängerin
  track: Der Schauspieldirektor, K.486: Jeder Künstler strebt nach Ehre
  track: Un moto di gioia mi sento, K.579
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    by artist: Edita Gruberova
    by artist: Vienna Chamber Orchestra
    by artist: György Fischer
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      type: MusicAlbum
      date published: 1991-05-08
    popularity: 18
    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: 2026-07-02T03:55:08Z
    audio: Un moto di gioia mi sento, K.579
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album: Haydn: Orfeo ed Euridice
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album: Mozart: La Clemenza di Tito
  type: MusicAlbum
  date published: 1995-01-01
  track: La clemenza di Tito / Act 1: "Del più sublime soglio"
album: Mozart: La Clemenza di Tito
  type: MusicAlbum
  date published: 1995-01-01
  track: La clemenza di Tito / Act 1: Che mi rechi in quel foglio?
album: Mozart: La Clemenza di Tito
  type: MusicAlbum
  date published: 1995-01-01
  track: La clemenza di Tito / Act 1: "Ah, se fosse intorno al trono"
track: Requiem in D Minor, K. 626: VIII. Lacrimosa
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  by artist: Bavarian Radio Chorus
  by artist: Bavarian Radio Symphony Orchestra
  by artist: Sir Colin Davis
  by artist: Uwe Heilmann
  by artist: Jan-Hendrik Rootering
  by artist: Marjana Lipovsek
  by artist: Angela Maria Blasi
  in album: J'aime pas le classique mais ca j'aime bien
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:55:08Z
  audio: Requiem in D Minor, K. 626: VIII. Lacrimosa
track: Wagner: Tristan und Isolde, Act 1: "Westwärts schweift der Blick" (Isolde, Brangäne, A young sailor)
track: Missa brevis in C Major, K. 220 "Spatzenmesse": II. Gloria
track: Wagner: Tristan und Isolde, Act 1: "Frisch weht der Wind" (A young sailor, Isolde, Brangäne, Kurwenal, Tristan, Chorus)
track: Missa brevis in C Major, K. 220 "Spatzenmesse": III. Credo
track: Missa brevis in C Major, K. 220 "Spatzenmesse": V. Benedictus
track: Missa brevis in C Major, K. 220 "Spatzenmesse": VI. Agnus Dei
track: Missa brevis in G, K.49: 3. Credo
track: Missa brevis in G, K.49: 1. Kyrie
track: Missa brevis in G, K.49: 5. Benedictus

Der Schauspieldirektor, K.486: Ich bin die erste Sängerin
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duration: PT6M27S
duration ms: 387306
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Edita Gruberova
by artist: Kiri Te Kanawa
by artist: Uwe Heilmann
by artist: Wiener Philharmoniker
by artist: Sir John Pritchard
in album: Mozart: Der Schauspieldirektor; Arias
  type: MusicAlbum
  date published: 1991-05-08
popularity: 4
genre: classical
genre: classical-era
isrc code: GBF079010094
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Der Schauspieldirektor, K.486: Ich bin die erste Sängerin
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Der Schauspieldirektor, K.486: Jeder Künstler strebt nach Ehre
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duration: PT5M2S
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by artist: Wolfgang Amadeus Mozart
by artist: Edita Gruberova
by artist: Kiri Te Kanawa
by artist: Uwe Heilmann
by artist: Manfred Jungwirth
by artist: Wiener Philharmoniker
by artist: Sir John Pritchard
in album: Mozart: Der Schauspieldirektor; Arias
  type: MusicAlbum
  date published: 1991-05-08
popularity: 2
genre: classical
genre: classical-era
isrc code: GBF079010095
additional property: CopyrightID
additional property: CopyrightStatus
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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: Der Schauspieldirektor, K.486: Jeder Künstler strebt nach Ehre
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La clemenza di Tito / Act 1: "Del più sublime soglio"
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by artist: Wolfgang Amadeus Mozart
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by artist: Academy of Ancient Music
by artist: Christopher Hogwood
in album: Mozart: La Clemenza di Tito
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genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T17:29:52Z
audio: La clemenza di Tito / Act 1: "Del più sublime soglio"
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

La clemenza di Tito / Act 1: Che mi rechi in quel foglio?
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by artist: Christopher Hogwood
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genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T23:51:35Z
audio: La clemenza di Tito / Act 1: Che mi rechi in quel foglio?
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La clemenza di Tito / Act 1: "Ah, se fosse intorno al trono"
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Wagner: Tristan und Isolde, Act 1: "Westwärts schweift der Blick" (Isolde, Brangäne, A young sailor)
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Missa brevis in C Major, K. 220 "Spatzenmesse": II. Gloria
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Wagner: Tristan und Isolde, Act 1: "Frisch weht der Wind" (A young sailor, Isolde, Brangäne, Kurwenal, Tristan, Chorus)
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Missa brevis in C Major, K. 220 "Spatzenmesse": III. Credo
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Missa brevis in C Major, K. 220 "Spatzenmesse": V. Benedictus
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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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72fba1ac43522f46c3344a132b7170c404e20a6af7df6e7a2d7bd14262cdebe. 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/DEA809450205.
  date published: 2026-07-02T05:09:12Z
audio: Missa brevis in C Major, K. 220 "Spatzenmesse": V. Benedictus
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.181
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.269
  additional property: Energy
    type: PropertyValue
    value: 0.075
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.275
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.192
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.781
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Missa brevis in C Major, K. 220 "Spatzenmesse": VI. Agnus Dei
type: MusicRecording
duration: PT4M12S
duration ms: 252626
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Nikolaus Harnoncourt
by artist: Angela Maria Blasi
by artist: Elisabeth Von Magnus
by artist: Franz-Josef Selig
by artist: Uwe Heilmann
by artist: Concentus Musicus Wien
by artist: Arnold Schönberg Choir
in album: Mozart "Spatzenmesse" Missa brevis in C-Dur, KV 220
  type: MusicAlbum
  date published: 2024-05-17
popularity: 8
genre: classical
genre: classical-era
isrc code: DEA809450206
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T17:27:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5a56a758f5fa29f8c69a3cfd31e2b3d0c7d360f43d98a364cf807f7315631c46
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/DEA809450206
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a56a758f5fa29f8c69a3cfd31e2b3d0c7d360f43d98a364cf807f7315631c46. 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/DEA809450206.
  date published: 2026-07-02T05:09:12Z
audio: Missa brevis in C Major, K. 220 "Spatzenmesse": VI. Agnus Dei
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.374
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.246
  additional property: Energy
    type: PropertyValue
    value: 0.06
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.101
  additional property: Liveness
    type: PropertyValue
    value: 0.294
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.084
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.312
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Missa brevis in G, K.49: 3. Credo
type: MusicRecording
duration: PT9M0S
duration ms: 540000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Edith Mathis
by artist: Rosemarie Lang
by artist: Uwe Heilmann
by artist: Jan-Hendrik Rootering
by artist: MDR Leipzig Radio Chorus
by artist: MDR-Sinfonieorchester
by artist: Herbert Kegel
in album: Mozart: Complete Edition Box 10: Missae, Requiem etc
  type: MusicAlbum
  date published: 2000-01-01
popularity: 1
genre: classical
genre: classical-era
isrc code: NLA508802509
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:47:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3afd885b35dd3e1009416645eb1377efa474db20c744326fa03c0df8f426303b
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/NLA508802509
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3afd885b35dd3e1009416645eb1377efa474db20c744326fa03c0df8f426303b. 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/NLA508802509.
  date published: 2026-07-08T03:22:41Z
audio: Missa brevis in G, K.49: 3. Credo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.258
  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: 0.14
  additional property: Energy
    type: PropertyValue
    value: 0.121
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.308
  additional property: Liveness
    type: PropertyValue
    value: 0.238
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.779
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Missa brevis in G, K.49: 1. Kyrie
type: MusicRecording
duration: PT2M0S
duration ms: 120000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Edith Mathis
by artist: Rosemarie Lang
by artist: Uwe Heilmann
by artist: Jan-Hendrik Rootering
by artist: MDR Leipzig Radio Chorus
by artist: MDR-Sinfonieorchester
by artist: Herbert Kegel
in album: Mozart: Complete Edition Box 10: Missae, Requiem etc
  type: MusicAlbum
  date published: 2000-01-01
popularity: 1
genre: classical
genre: classical-era
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd391758c6650e6ffcec7a9ea925fc9e77dd46437fbcff0c2824d49496bfbb5d3. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/NLA508802507.
  date published: 2026-07-31T20:42:35Z
audio: Missa brevis in G, K.49: 1. Kyrie
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 172.232
  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: 0.081
  additional property: Energy
    type: PropertyValue
    value: 0.084
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.86
  additional property: Liveness
    type: PropertyValue
    value: 0.391
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.106
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.481
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: NLA508802507
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960463
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T20:42:35+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508802507
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960463
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960463
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T20:42:35+00:00
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

Missa brevis in G, K.49: 5. Benedictus
type: MusicRecording
duration: PT1M45S
duration ms: 105000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Edith Mathis
by artist: Rosemarie Lang
by artist: Uwe Heilmann
by artist: Jan-Hendrik Rootering
by artist: MDR Leipzig Radio Chorus
by artist: MDR-Sinfonieorchester
by artist: Herbert Kegel
in album: Mozart: Complete Edition Box 10: Missae, Requiem etc
  type: MusicAlbum
  date published: 2000-01-01
popularity: 1
genre: classical
genre: classical-era
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b405f3b84d4800d2f5b9eeed96728a1f10ef8504f0a37a64674ae658a476d5. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/NLA508802511.
  date published: 2026-07-31T15:59:18Z
audio: Missa brevis in G, K.49: 5. Benedictus
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.025
  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: 0.201
  additional property: Energy
    type: PropertyValue
    value: 0.12
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.152
  additional property: Liveness
    type: PropertyValue
    value: 0.192
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.141
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.222
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: NLA508802511
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960427
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T15:59:18+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508802511
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960427
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960427
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:59:18+00:00
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

Requiem in D Minor, K. 626: VIII. Lacrimosa
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 133.851
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.178
additional property: Energy
  type: PropertyValue
  value: 0.108
additional property: Speechiness
  type: PropertyValue
  value: 0.041
additional property: Acousticness
  type: PropertyValue
  value: 0.948
additional property: Instrumentalness
  type: PropertyValue
  value: 0.721
additional property: Liveness
  type: PropertyValue
  value: 0.261
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.059
additional property: Loudness (dB)
  type: PropertyValue
  value: -19.737
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Minor

Requiem in D Minor, K. 626: VIII. Lacrimosa
type: MusicRecording
duration: PT3M15S
duration ms: 195546
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bavarian Radio Chorus
by artist: Bavarian Radio Symphony Orchestra
by artist: Sir Colin Davis
by artist: Uwe Heilmann
by artist: Jan-Hendrik Rootering
by artist: Marjana Lipovsek
by artist: Angela Maria Blasi
in album: Ich mag keine Klassik, aber das gefällt mir!
  type: MusicAlbum
  date published: 2009-11-06
popularity: 5
genre: classical
genre: classical-era
isrc code: USBC19100373
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T20:48:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x965290178e36a53f75338e74a6b5a649b651b1d446c6091f5e2b9fe919b1a35c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957073
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19100373
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05Z
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 0x965290178e36a53f75338e74a6b5a649b651b1d446c6091f5e2b9fe919b1a35c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USBC19100373.
  date published: 2026-07-07T18:39:05Z
audio: Requiem in D Minor, K. 626: VIII. Lacrimosa
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.851
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.178
  additional property: Energy
    type: PropertyValue
    value: 0.108
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.948
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.721
  additional property: Liveness
    type: PropertyValue
    value: 0.261
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.059
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.737
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Requiem in D Minor, K. 626: VIII. Lacrimosa
type: MusicRecording
duration: PT3M14S
duration ms: 194773
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bavarian Radio Chorus
by artist: Bavarian Radio Symphony Orchestra
by artist: Sir Colin Davis
by artist: Uwe Heilmann
by artist: Jan-Hendrik Rootering
by artist: Marjana Lipovsek
by artist: Angela Maria Blasi
in album: Les Plus Grands Airs De La Musique Classique
  type: MusicAlbum
  date published: 2002-08-06
popularity: 3
genre: classical
genre: classical-era
isrc code: USBC19100373
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T20:48:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x965290178e36a53f75338e74a6b5a649b651b1d446c6091f5e2b9fe919b1a35c
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/USBC19100373
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965290178e36a53f75338e74a6b5a649b651b1d446c6091f5e2b9fe919b1a35c. 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/USBC19100373.
  date published: 2026-07-08T03:22:41Z
audio: Requiem in D Minor, K. 626: VIII. Lacrimosa
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.652
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.077
  additional property: Energy
    type: PropertyValue
    value: 0.098
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.965
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.611
  additional property: Liveness
    type: PropertyValue
    value: 0.155
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.06
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.928
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor