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album: Verdi: Alzira
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  date published: 2001-01-01
  track: Alzira / Act 1: Da Gusman
  track: Alzira / Act 1: Che fia?
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  track: John of Damascus, Op. 1 Cantata for Chorus and Orchestra After a Poem from A.Tolstoj: III. Fuga. Allegro - Moderato
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album: Opera - 50 of the Best
album: Verdi (The Very Best Of)
album: Become an Instant Expert: Verdi
album: The Best of Michael Halász
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album: A Guided Tour of the Classical Era, Vol. 2
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album: Verdi: Jérusalem
album: Une flûte à l'opéra
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album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
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album: Capolavori della musica classica italiana
album: Classical Music: 50 of the Best Film Classics
album: Rubinstein: Demon (The)
album: Cinema Classics 2006
album: Opera's Greatest Moments
album: Klassik ohne Krise: Grandioser Gesang
album: The Ultimate Mozart Opera Album
album: Cinema Classics (The Very Best Of)
album: Klassik ohne Krise – Ganz großes Kino
album: The Ultimate Verdi Opera Album

Alzira / Act 1: Da Gusman
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by artist: Giuseppe Verdi
by artist: Marina Mescheriakova
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Alzira / Act 1: Che fia?
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Casta diva
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Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Sinfonia
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by artist: Michael Roider
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  value: https://explorer.copyrightchains.com/tx/0x6b9247635577149f79a7dd193c2fc5cb77b28f2218534d3d076c6ed2b160d167
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348101
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
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: 953513
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T12:47:07+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 0x6b9247635577149f79a7dd193c2fc5cb77b28f2218534d3d076c6ed2b160d167. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI190348101.
  date published: 2026-06-13T12:47:07Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Sinfonia
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.162
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.313
  additional property: Energy
    type: PropertyValue
    value: 0.144
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.944
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.92
  additional property: Liveness
    type: PropertyValue
    value: 0.181
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.303
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.316
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 16: Finale - Esci omai, garzon malnato
type: MusicRecording
duration: PT2M29S
duration ms: 149026
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348201
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T07:04:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1f445fcd9a60e6d327ba9146834de178f0f448060c3b203c9b61956ba8e158e5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957075
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957075
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348201
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:50:38Z
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
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: 957075
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-07T18:50:38+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 0x1f445fcd9a60e6d327ba9146834de178f0f448060c3b203c9b61956ba8e158e5. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/HKI190348201.
  date published: 2026-07-07T18:50:38Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 16: Finale - Esci omai, garzon malnato
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.159
  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: 0.482
  additional property: Energy
    type: PropertyValue
    value: 0.239
  additional property: Speechiness
    type: PropertyValue
    value: 0.058
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.12
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.497
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.352
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 1: Recitativo - Cosa stai misurando
type: MusicRecording
duration: PT0M41S
duration ms: 41800
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348103
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T08:02:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0385dbc279184c411118892a8a2812c1570b09900ce4ec7f6f9a94c7fae8f7bd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348103
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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
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: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+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 0x0385dbc279184c411118892a8a2812c1570b09900ce4ec7f6f9a94c7fae8f7bd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348103.
  date published: 2026-07-02T03:30:09Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 1: Recitativo - Cosa stai misurando
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.862
  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: 0.689
  additional property: Energy
    type: PropertyValue
    value: 0.115
  additional property: Speechiness
    type: PropertyValue
    value: 0.476
  additional property: Acousticness
    type: PropertyValue
    value: 0.963
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.526
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.553
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.082
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 16: Susanna, son morta
type: MusicRecording
duration: PT3M11S
duration ms: 191373
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348203
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T01:35:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x82ab0131860c36df826fe5ea28c738dec0a29155415cd15e2bf170bbf2786d68
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956856
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956856
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348203
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T01:25:57+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: 956856
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-06T01:25:57+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 0x82ab0131860c36df826fe5ea28c738dec0a29155415cd15e2bf170bbf2786d68. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/HKI190348203.
  date published: 2026-07-06T01:26:17Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 16: Susanna, son morta
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.319
  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: 0.501
  additional property: Energy
    type: PropertyValue
    value: 0.211
  additional property: Speechiness
    type: PropertyValue
    value: 0.074
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.245
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.446
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.778
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 16: Signori, di fuori
type: MusicRecording
duration: PT3M31S
duration ms: 211666
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348204
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T07:25:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb8e490e804659c410dd0497d2c68b78d8abc34004f1734378a460be49b4c60aa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957084
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957084
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348204
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T20:41:57Z
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
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: 957084
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-07T20:41:57+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 0xb8e490e804659c410dd0497d2c68b78d8abc34004f1734378a460be49b4c60aa. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/HKI190348204.
  date published: 2026-07-07T20:41:57Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 16: Signori, di fuori
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 123.222
  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: 0.406
  additional property: Energy
    type: PropertyValue
    value: 0.209
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.71
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.441
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.043
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 2: Recitativo - Or bene, ascolta, e taci!
type: MusicRecording
duration: PT2M31S
duration ms: 151040
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348105
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T08:05:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9be5c53e14c02d68f9a3c951fced4749f1c28b968f57d3a2063a80f94391e5e9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348105
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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
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: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+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 0x9be5c53e14c02d68f9a3c951fced4749f1c28b968f57d3a2063a80f94391e5e9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348105.
  date published: 2026-07-02T03:30:09Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 2: Recitativo - Or bene, ascolta, e taci!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.41
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.594
  additional property: Energy
    type: PropertyValue
    value: 0.066
  additional property: Speechiness
    type: PropertyValue
    value: 0.322
  additional property: Acousticness
    type: PropertyValue
    value: 0.955
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.541
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.349
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.895
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 16: Ah, signor...signor...
type: MusicRecording
duration: PT6M6S
duration ms: 366800
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348205
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T18:19:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x72e114c1cb7db3325827dc4416cf7c5e10c9fece50376a857f30f4c34c707dae
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957064
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957064
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348205
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T16:43:08+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: 957064
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-07T16:43:08+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 0x72e114c1cb7db3325827dc4416cf7c5e10c9fece50376a857f30f4c34c707dae. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/HKI190348205.
  date published: 2026-07-07T16:43:21Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 16: Ah, signor...signor...
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.512
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.354
  additional property: Energy
    type: PropertyValue
    value: 0.272
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.008
  additional property: Liveness
    type: PropertyValue
    value: 0.168
  additional property: Valence (Positivity)
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    value: 0.427
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.927
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 4: Aria - La vendetta, oh, la vendetta
type: MusicRecording
duration: PT3M12S
duration ms: 192533
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348108
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T04:18:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf83cb766029fad2c9aafa185743055c7f7326776a7c4b9e70ef93d2728a7dff7
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/HKI190348108
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
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 0xf83cb766029fad2c9aafa185743055c7f7326776a7c4b9e70ef93d2728a7dff7. 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/HKI190348108.
  date published: 2026-07-02T03:55:08Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 4: Aria - La vendetta, oh, la vendetta
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.859
  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: 0.419
  additional property: Energy
    type: PropertyValue
    value: 0.266
  additional property: Speechiness
    type: PropertyValue
    value: 0.058
  additional property: Acousticness
    type: PropertyValue
    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.113
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.585
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.852
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 17: Duettino - Crudel! Perché finora
type: MusicRecording
duration: PT2M39S
duration ms: 159333
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348208
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T09:18:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4779df5befac586cf2ef8662d53c63a76813cdf39cb3b7133957b0111b23ab14
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957061
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957061
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348208
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T16:07:00Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
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: 957061
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-07T16:07:00+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 0x4779df5befac586cf2ef8662d53c63a76813cdf39cb3b7133957b0111b23ab14. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348208.
  date published: 2026-07-07T16:07:00Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 17: Duettino - Crudel! Perché finora
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 126.643
  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: 0.436
  additional property: Energy
    type: PropertyValue
    value: 0.156
  additional property: Speechiness
    type: PropertyValue
    value: 0.063
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.247
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.26
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.023
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 4: Recitativo - Tutto ancor non ho perso
type: MusicRecording
duration: PT0M43S
duration ms: 43466
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348109
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T09:59:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x83208b109811b1da2384dd7281abab0000c8cfd5df8caddac993df20e3b3a506
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/HKI190348109
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
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 0x83208b109811b1da2384dd7281abab0000c8cfd5df8caddac993df20e3b3a506. 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/HKI190348109.
  date published: 2026-07-02T03:55:08Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 4: Recitativo - Tutto ancor non ho perso
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.978
  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: 0.562
  additional property: Energy
    type: PropertyValue
    value: 0.031
  additional property: Speechiness
    type: PropertyValue
    value: 0.11
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.213
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.336
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.924
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 5: Recitativo - Va' la, vecchia pedante
type: MusicRecording
duration: PT2M1S
duration ms: 121893
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348111
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T09:57:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x30c97698ba45ee15715afff223dbdf390eaa7fa3507d63f5629c2eae8d534b90
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/HKI190348111
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
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 0x30c97698ba45ee15715afff223dbdf390eaa7fa3507d63f5629c2eae8d534b90. 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/HKI190348111.
  date published: 2026-07-02T03:55:08Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 5: Recitativo - Va' la, vecchia pedante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.006
  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: 0.621
  additional property: Energy
    type: PropertyValue
    value: 0.051
  additional property: Speechiness
    type: PropertyValue
    value: 0.341
  additional property: Acousticness
    type: PropertyValue
    value: 0.966
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.204
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.188
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.503
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 6: Aria - Non so piu cosa son faccio
type: MusicRecording
duration: PT2M28S
duration ms: 148000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348112
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T05:14:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x36f3b52b857f00e2c270b381b7ba2ecd87b744cc89a917205d6b2a73aea3803e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348112
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09+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: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+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 0x36f3b52b857f00e2c270b381b7ba2ecd87b744cc89a917205d6b2a73aea3803e. 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/HKI190348112.
  date published: 2026-07-02T03:55:08Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 6: Aria - Non so piu cosa son faccio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.22
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.421
  additional property: Energy
    type: PropertyValue
    value: 0.142
  additional property: Speechiness
    type: PropertyValue
    value: 0.085
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.098
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.091
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.985
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 6: Recitativo - Ah son perduto!
type: MusicRecording
duration: PT3M39S
duration ms: 219173
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348113
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T23:36:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x81b24518e51f86033e092a5c7d5790dcd36cd45429c159fb34548ba653904cee
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/HKI190348113
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 0x81b24518e51f86033e092a5c7d5790dcd36cd45429c159fb34548ba653904cee. 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/HKI190348113.
  date published: 2026-07-02T05:09:12Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 6: Recitativo - Ah son perduto!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.148
  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: 0.569
  additional property: Energy
    type: PropertyValue
    value: 0.049
  additional property: Speechiness
    type: PropertyValue
    value: 0.176
  additional property: Acousticness
    type: PropertyValue
    value: 0.908
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.567
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.238
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.657
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 19: Recitativo - Eccovi, o caro amico
type: MusicRecording
duration: PT1M6S
duration ms: 66800
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348213
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T21:16:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x56ef8c641b868c8da78abdc02207d3412433cfa67e645474abb1c102ec40f8b6
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/HKI190348213
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+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: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+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 0x56ef8c641b868c8da78abdc02207d3412433cfa67e645474abb1c102ec40f8b6. 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/HKI190348213.
  date published: 2026-07-08T03:53:27Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 19: Recitativo - Eccovi, o caro amico
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.178
  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: 0.481
  additional property: Energy
    type: PropertyValue
    value: 0.067
  additional property: Speechiness
    type: PropertyValue
    value: 0.386
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.096
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.096
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.967
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 7: Terzetto - Cosa sento! Tosto andate
type: MusicRecording
duration: PT4M16S
duration ms: 256826
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348114
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T09:58:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4695c6894b447f97e88c5f6e78f8f9b5b467b67dadb721b1ab7822b2848141b1
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/HKI190348114
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
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 0x4695c6894b447f97e88c5f6e78f8f9b5b467b67dadb721b1ab7822b2848141b1. 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/HKI190348114.
  date published: 2026-07-02T03:55:08Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 7: Terzetto - Cosa sento! Tosto andate
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.536
  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: 0.46
  additional property: Energy
    type: PropertyValue
    value: 0.199
  additional property: Speechiness
    type: PropertyValue
    value: 0.071
  additional property: Acousticness
    type: PropertyValue
    value: 0.972
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.112
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.37
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.628
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 8: Chorus - Giovani liete fiori spargete
type: MusicRecording
duration: PT1M10S
duration ms: 70773
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348116
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T15:56:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcd6e030ef2473192107fe1e605f9f9ac9c55622a324f73a31de32db0611c5b8a
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/HKI190348116
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
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 0xcd6e030ef2473192107fe1e605f9f9ac9c55622a324f73a31de32db0611c5b8a. 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/HKI190348116.
  date published: 2026-07-02T03:55:08Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 8: Chorus - Giovani liete fiori spargete
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 123.027
  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: 0.248
  additional property: Energy
    type: PropertyValue
    value: 0.051
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.005
  additional property: Liveness
    type: PropertyValue
    value: 0.195
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.28
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.622
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 8: Recitativo - Cos' e questa commedia?
type: MusicRecording
duration: PT1M25S
duration ms: 85066
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348117
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T23:36:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2192eb9a29a352b350340c2c4ed8e4fa4864cb6b06f64f0ae4a288c8b3ca6a2b
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/HKI190348117
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 0x2192eb9a29a352b350340c2c4ed8e4fa4864cb6b06f64f0ae4a288c8b3ca6a2b. 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/HKI190348117.
  date published: 2026-07-02T05:09:12Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 8: Recitativo - Cos' e questa commedia?
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.764
  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: 0.62
  additional property: Energy
    type: PropertyValue
    value: 0.111
  additional property: Speechiness
    type: PropertyValue
    value: 0.296
  additional property: Acousticness
    type: PropertyValue
    value: 0.962
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.319
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.483
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.864
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 9: Chorus - Giovani liete fiori spargete
type: MusicRecording
duration: PT0M55S
duration ms: 55600
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348118
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T23:49:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x18ae1ece3e843214cb1bbcfa44b0fdfc6e357d5bf7545f6490e279f96381c03b
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/HKI190348118
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 0x18ae1ece3e843214cb1bbcfa44b0fdfc6e357d5bf7545f6490e279f96381c03b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HKI190348118.
  date published: 2026-07-02T11:38:34Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 9: Chorus - Giovani liete fiori spargete
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.835
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.265
  additional property: Energy
    type: PropertyValue
    value: 0.056
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.005
  additional property: Liveness
    type: PropertyValue
    value: 0.197
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.388
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.033
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 9: Recitativo - Evviva!
type: MusicRecording
duration: PT1M12S
duration ms: 72400
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348119
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T23:38:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7944af2e9ce8e2d137aeecbfb1c9bfd356aef324325952dce0fba0b473aade7f
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/HKI190348119
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 0x7944af2e9ce8e2d137aeecbfb1c9bfd356aef324325952dce0fba0b473aade7f. 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/HKI190348119.
  date published: 2026-07-02T05:09:12Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 9: Recitativo - Evviva!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.81
  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: 0.622
  additional property: Energy
    type: PropertyValue
    value: 0.106
  additional property: Speechiness
    type: PropertyValue
    value: 0.312
  additional property: Acousticness
    type: PropertyValue
    value: 0.967
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.391
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.432
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.122
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 11: Cavatina - Porgi amor qualche ristoro
type: MusicRecording
duration: PT3M47S
duration ms: 227533
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348121
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T09:44:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf095eea2b4d663a77dce848f862007c8c47fc0cf389720a00b34ddf47b0cf4fe
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/HKI190348121
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
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 0xf095eea2b4d663a77dce848f862007c8c47fc0cf389720a00b34ddf47b0cf4fe. 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/HKI190348121.
  date published: 2026-07-02T03:55:08Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 11: Cavatina - Porgi amor qualche ristoro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 148.986
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.233
  additional property: Energy
    type: PropertyValue
    value: 0.03
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.008
  additional property: Liveness
    type: PropertyValue
    value: 0.115
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.339
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 11: Recitativo - Vieni, cara Susanna
type: MusicRecording
duration: PT3M53S
duration ms: 233133
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348122
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T23:39:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x18afcdc564e61f8e7e2523f9267f56e4136af47bdc266412e0aca04de617b089
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/HKI190348122
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 0x18afcdc564e61f8e7e2523f9267f56e4136af47bdc266412e0aca04de617b089. 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/HKI190348122.
  date published: 2026-07-02T05:09:12Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 11: Recitativo - Vieni, cara Susanna
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.135
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.602
  additional property: Energy
    type: PropertyValue
    value: 0.078
  additional property: Speechiness
    type: PropertyValue
    value: 0.365
  additional property: Acousticness
    type: PropertyValue
    value: 0.965
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.28
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.36
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.599
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 11: Recitativo - Quanto duolmi, Susanna
type: MusicRecording
duration: PT1M30S
duration ms: 90506
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348123
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T06:38:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd2653a27a1d57581a187e34739a34d29d83acae8e86cf1510a462ee1213d40af
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/HKI190348123
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
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 0xd2653a27a1d57581a187e34739a34d29d83acae8e86cf1510a462ee1213d40af. 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/HKI190348123.
  date published: 2026-07-02T03:55:08Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 11: Recitativo - Quanto duolmi, Susanna
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.459
  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: 0.562
  additional property: Energy
    type: PropertyValue
    value: 0.025
  additional property: Speechiness
    type: PropertyValue
    value: 0.099
  additional property: Acousticness
    type: PropertyValue
    value: 0.962
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.091
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.17
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.466
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 12: Arietta - Voi, che sapete
type: MusicRecording
duration: PT2M45S
duration ms: 165693
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
genre: classical
genre: classical-era
isrc code: HKI190348124
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T06:36:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x59712e785fec515d858b52a07ef488387e19de89374e1aaa9ecc687e631151d7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348124
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07+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: 953513
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T12:47:07+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 0x59712e785fec515d858b52a07ef488387e19de89374e1aaa9ecc687e631151d7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HKI190348124.
  date published: 2026-06-13T15:41:10Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 12: Arietta - Voi, che sapete
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.925
  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: 0.322
  additional property: Energy
    type: PropertyValue
    value: 0.081
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.175
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.095
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.31
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 16: Susanna!...Signore
type: MusicRecording
duration: PT1M27S
duration ms: 87600
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
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 0xd85cdd9876ef65c6ba14b4294fcb3afc4caa26ad5b43b6dbd0f6d4109b55194d. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/HKI190348202.
  date published: 2026-07-22T07:19:23Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 16: Susanna!...Signore
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 93.576
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.378
  additional property: Energy
    type: PropertyValue
    value: 0.086
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.133
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.314
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.424
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI190348202
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: 959107
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-22T07:19:23+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348202
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959107
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959107
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T07:19:23+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

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 16: Voi, signor, che giusto siete
type: MusicRecording
duration: PT3M55S
duration ms: 235733
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
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 0x49973cbbb9ffef06ce2aaad861f21b07c8ca3df86a3202aec8e28980bb80ca50. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:41:07Z), 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/HKI190348206.
  date published: 2026-07-22T20:41:07Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 16: Voi, signor, che giusto siete
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.289
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.417
  additional property: Energy
    type: PropertyValue
    value: 0.356
  additional property: Speechiness
    type: PropertyValue
    value: 0.066
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.251
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.536
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.346
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI190348206
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: 959159
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-22T17:48:40+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348206
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959159
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959159
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T17:48:40+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

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 12: Recitativo - Bravo! Che bella voce!
type: MusicRecording
duration: PT1M9S
duration ms: 69426
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
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 0xe94a3da12844b03618d680a63fe4f7e4227f8c36635c1e4932da869863714685. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/HKI190348125.
  date published: 2026-07-22T17:48:40Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 12: Recitativo - Bravo! Che bella voce!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 86.856
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.586
  additional property: Energy
    type: PropertyValue
    value: 0.026
  additional property: Speechiness
    type: PropertyValue
    value: 0.27
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.108
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.201
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.883
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI190348125
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: 959159
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-22T17:48:40+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348125
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959159
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959159
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T17:48:40+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

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 13: Aria - Venite, inginocchiatevi
type: MusicRecording
duration: PT3M11S
duration ms: 191146
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
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 0x7a867c29c593a91154b4f9784873785ea4bf713ab0b53f6a4811ae3f357fb486. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/HKI190348126.
  date published: 2026-07-22T13:20:46Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 13: Aria - Venite, inginocchiatevi
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.39
  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: 0.427
  additional property: Energy
    type: PropertyValue
    value: 0.082
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.093
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.324
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.139
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI190348126
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: 959132
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-22T13:20:46+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348126
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959132
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959132
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T13:20:46+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

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 13: Recitativo - Quante buffonerie!
type: MusicRecording
duration: PT2M28S
duration ms: 148960
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
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 0xd6cee598e7f8f96168c2366a3d07a883ec45660dd2eee3b898bb22e3c982dd22. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:03:48Z), 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/HKI190348127.
  date published: 2026-07-22T19:03:48Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 13: Recitativo - Quante buffonerie!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 96.965
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.613
  additional property: Energy
    type: PropertyValue
    value: 0.044
  additional property: Speechiness
    type: PropertyValue
    value: 0.355
  additional property: Acousticness
    type: PropertyValue
    value: 0.953
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.066
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.258
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.902
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI190348127
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: 959152
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-22T16:23:52+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348127
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959152
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959152
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T16:23:52+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

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 13: Recitativo - Che novità
type: MusicRecording
duration: PT1M8S
duration ms: 68440
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
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 0x3af323091b667ddd4983e5dee2e4edbc651f1580a474563f34515f23fe1de64b. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/HKI190348128.
  date published: 2026-07-22T17:48:40Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 13: Recitativo - Che novità
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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isrc code: HKI190348128
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348128
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959159
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T17:48:40+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

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 14: Terzetto: Susanna, or via, sortite
type: MusicRecording
duration: PT3M22S
duration ms: 202360
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
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 0xb1f14a46b928e134d0c536fe9f9f0d2302b0f5e50346088f7367a303f91b8437. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/HKI190348129.
  date published: 2026-07-22T11:35:32Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 14: Terzetto: Susanna, or via, sortite
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
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    value: -19.024
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI190348129
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-22T11:35:32+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348129
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959123
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T11:35:32+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

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 15: Recitativo - Tutto e come il lasciai
type: MusicRecording
duration: PT1M22S
duration ms: 82106
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
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 0x7edd71d04497a8f85bff3e18cdaae2c036317a6ee98b9031bb2b979f6b6bf043. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:37:29Z), 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/HKI190348133.
  date published: 2026-07-22T19:37:29Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 15: Recitativo - Tutto e come il lasciai
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  additional property: Tempo (BPM)
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    value: 100.774
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.943
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.404
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: HKI190348133
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348133
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959155
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959155
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T16:43:41+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

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 16: Recitativo - Che imbarazzo e mai questo!
type: MusicRecording
duration: PT2M28S
duration ms: 148066
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
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 0x56c457a376a55612c03059a6d436664c10f81380f8f692207783141f565e7185. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348207.
  date published: 2026-07-29T11:30:20Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 16: Recitativo - Che imbarazzo e mai questo!
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 74.921
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.468
  additional property: Energy
    type: PropertyValue
    value: 0.07
  additional property: Speechiness
    type: PropertyValue
    value: 0.308
  additional property: Acousticness
    type: PropertyValue
    value: 0.937
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.197
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.198
  additional property: Loudness (dB)
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    value: -26.216
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI190348207
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T11:30:20+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348207
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960099
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960099
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T11:30:20+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

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 17: Recitativo - E perche fosti meco
type: MusicRecording
duration: PT0M45S
duration ms: 45333
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
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 0xb7986904aa5adf5754149ad1f35f14bc5dde33939d3c848360a4cb436c90912d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/HKI190348209.
  date published: 2026-07-29T21:09:47Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 17: Recitativo - E perche fosti meco
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.643
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.658
  additional property: Energy
    type: PropertyValue
    value: 0.049
  additional property: Speechiness
    type: PropertyValue
    value: 0.295
  additional property: Acousticness
    type: PropertyValue
    value: 0.939
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.409
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.368
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.617
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI190348209
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: 960144
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T21:09:47+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348209
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960144
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960144
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T21:09:47+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

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 18: Recitativo & Aria - Hai gia vinta la causa!...
type: MusicRecording
duration: PT4M50S
duration ms: 290266
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
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 0x6981d7b5bde2a4568af50811184bffd44ffa4d6fa8c0d694b97569a5b1f44ae5. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/HKI190348210.
  date published: 2026-07-30T00:39:11Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 18: Recitativo & Aria - Hai gia vinta la causa!...
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.799
  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: 0.342
  additional property: Energy
    type: PropertyValue
    value: 0.219
  additional property: Speechiness
    type: PropertyValue
    value: 0.087
  additional property: Acousticness
    type: PropertyValue
    value: 0.965
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.286
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.432
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.538
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI190348210
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: 960179
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T00:39:11+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348210
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960179
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960179
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T00:39:11+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

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 18: Recitativo - E decisa la lite
type: MusicRecording
duration: PT2M10S
duration ms: 130026
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
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 0xf0f87c836535f25266860d21942d72071cf206982feb9515e5ad33f99206668e. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/HKI190348211.
  date published: 2026-07-29T21:09:47Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 18: Recitativo - E decisa la lite
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.827
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.597
  additional property: Energy
    type: PropertyValue
    value: 0.133
  additional property: Speechiness
    type: PropertyValue
    value: 0.604
  additional property: Acousticness
    type: PropertyValue
    value: 0.963
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.274
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.296
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.758
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI190348211
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: 960144
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T21:09:47+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348211
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960144
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960144
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T21:09:47+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

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 19: Sestetto - Riconosci in questo amplesso
type: MusicRecording
duration: PT5M13S
duration ms: 313800
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
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 0x49de06e89fffa1004d8ebd51e651b2bb31cb90b67ed3a0ad0b4e72ac1e367bf9. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/HKI190348212.
  date published: 2026-07-29T13:21:01Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 19: Sestetto - Riconosci in questo amplesso
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.624
  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: 0.37
  additional property: Energy
    type: PropertyValue
    value: 0.222
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.207
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.342
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.579
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI190348212
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: 960111
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T13:21:01+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348212
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960111
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960111
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T13:21:01+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

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 19: Recitativo - Andiam, andiam, bel paggio
type: MusicRecording
duration: PT0M41S
duration ms: 41573
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
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 0x6735b79aa68e5820293540efdefeb2295de1b99310d3b7fc82da8b23f18a44a5. Chain 2 (Bitcoin): anchored in block 960165 (2026-07-29T23:29:40Z), 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/HKI190348214.
  date published: 2026-07-29T23:29:40Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 19: Recitativo - Andiam, andiam, bel paggio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 94.929
  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: 0.708
  additional property: Energy
    type: PropertyValue
    value: 0.052
  additional property: Speechiness
    type: PropertyValue
    value: 0.486
  additional property: Acousticness
    type: PropertyValue
    value: 0.975
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.07
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.346
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.818
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI190348214
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: 960165
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T23:29:40+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348214
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960165
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960165
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T23:29:40+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

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 20: Recitativo & Aria - E Susanna non vien!...Dove sono i bei momenti
type: MusicRecording
duration: PT5M56S
duration ms: 356693
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
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 0xc2b8412a245621d18a881b1ce62da13af194d0c68dbcc1923002021944095ee4. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348215.
  date published: 2026-07-30T03:35:13Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 20: Recitativo & Aria - E Susanna non vien!...Dove sono i bei momenti
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.75
  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: 0.309
  additional property: Energy
    type: PropertyValue
    value: 0.043
  additional property: Speechiness
    type: PropertyValue
    value: 0.064
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.12
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.071
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.963
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI190348215
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: 960203
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T03:35:13+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348215
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960203
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960203
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T03:35:13+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

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 14: Recitativo - Dunque voi non aprite?
type: MusicRecording
duration: PT0M56S
duration ms: 56173
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
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 0x7e0259aa493cc6a8c21c43f6e78a3e3c0fd12db2adca21a06c3b1b1f32332a05. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/HKI190348130.
  date published: 2026-07-29T14:28:24Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 14: Recitativo - Dunque voi non aprite?
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.913
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.618
  additional property: Energy
    type: PropertyValue
    value: 0.136
  additional property: Speechiness
    type: PropertyValue
    value: 0.399
  additional property: Acousticness
    type: PropertyValue
    value: 0.904
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.188
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.351
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.558
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI190348130
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: 960117
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T14:28:24+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348130
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960117
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960117
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T14:28:24+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

Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 15: Duettino - Aprite, presto, aprite
type: MusicRecording
duration: PT1M9S
duration ms: 69000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Marina Mescheriakova
by artist: Judith Halász
by artist: Michelle Breedt
by artist: Orsolya Safar
by artist: Gabriele Sima
by artist: Alexander Klinger
by artist: Michael Roider
by artist: Bo Skovhus
by artist: Peter Koves
by artist: Janusz Monarcha
by artist: Renato Girolami
by artist: Nicolaus Esterhazy Sinfonia
by artist: Michael Halasz
in album: Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
  type: MusicAlbum
  date published: 2004-05-08
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 0x23c6ec9d0c798de162130b330077a0f7c45048b337794f1044a7890e032c3adb. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348131.
  date published: 2026-07-29T11:30:20Z
audio: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 15: Duettino - Aprite, presto, aprite
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.677
  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: 0.563
  additional property: Energy
    type: PropertyValue
    value: 0.218
  additional property: Speechiness
    type: PropertyValue
    value: 0.07
  additional property: Acousticness
    type: PropertyValue
    value: 0.893
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.443
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.76
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.954
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: HKI190348131
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: 960099
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T11:30:20+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190348131
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960099
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960099
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T11:30:20+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

Energy
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Become an Instant Expert: Verdi
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The Essential Verdi
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Discover Opera
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track: Largo al factotum
track: III. Andante - Allegro
track: Preludio for Piano
track: Casta diva
track: Canzonette d'amore
track: II. Allegro vivo
track: I. Allegro assai: Adagio
track: Libiamo, ne'lieti calici
track: III. Largo, Illy No. 74
track: Overture
track: V. Allegro molto
track: Allegro
track: Turandot, Act III Scene 1: Nessun dorma
track: III. Minuetto (Featured in "The Ladykillers")
track: IV. Allegro
track: No. 2 in A Minor: Andantino sostenuto
track: Stabat mater: Stabat mater dolorosa
track: IV. Presto
track: Illumina faciem tuam
track: Intermezzo (Featured in "The Godfather Part III")
track: No. 2, Minuetto. Carezzevole
track: Keyboard Sonata in D Minor, K.32/L.423/P.14 (arr. Kyuhee Park for guitar)

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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
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date published: 2026-07-02T03:30:09Z

II. Largo
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I. Italiana
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subject of: OpenTimestamps Proof of Existence
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Keyboard Sonata in C Major, Kk. 159
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subject of: OpenTimestamps Proof of Existence
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audio: Keyboard Sonata in C Major, Kk. 159
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La donna e mobile
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subject of: OpenTimestamps Proof of Existence
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audio: La donna e mobile
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Scherzo
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III. Allegro
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Ego sum panis vivus
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III. Adagio - Allegro - Adagio
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199908420
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0x787687879d254882416dd5ffd8952d1bce7ab740831d3eb5746da71c0af4bed3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199908420.
  date published: 2026-07-02T03:30:09Z
audio: III. Adagio - Allegro - Adagio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.108
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.236
  additional property: Energy
    type: PropertyValue
    value: 0.033
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.935
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.63
  additional property: Liveness
    type: PropertyValue
    value: 0.099
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.167
  additional property: Loudness (dB)
    type: PropertyValue
    value: -31.096
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

No. 3, Spanish Dance (for Don Adriano de Armado)
type: MusicRecording
duration: PT3M11S
duration ms: 191880
explicit: false
by artist: Mario Castelnuovo-Tedesco
by artist: Malmö Symphony Orchestra
by artist: Andrew Mogrelia
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
isrc code: HKI191210709
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T17:40:55+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf0b3302adacf493458f9cf6b410c0cb0ec31828ad190a4f32bb07cd405554d80
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/HKI191210709
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 0xf0b3302adacf493458f9cf6b410c0cb0ec31828ad190a4f32bb07cd405554d80. 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/HKI191210709.
  date published: 2026-07-02T03:55:08Z
audio: No. 3, Spanish Dance (for Don Adriano de Armado)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.979
  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: 0.293
  additional property: Energy
    type: PropertyValue
    value: 0.135
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.869
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.823
  additional property: Liveness
    type: PropertyValue
    value: 0.31
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.136
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.798
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

II. Tempo di minuetto con espressione e andante
type: MusicRecording
duration: PT2M32S
duration ms: 152200
explicit: false
by artist: Muzio Clementi
by artist: HyeJin Kim
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
isrc code: HKI192109119
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T17:41:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc18b4b9a385ea9cf1f7ec415f7c96c972deac30fe98d211890b5e837cde90691
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/HKI192109119
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 0xc18b4b9a385ea9cf1f7ec415f7c96c972deac30fe98d211890b5e837cde90691. 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/HKI192109119.
  date published: 2026-07-02T03:55:08Z
audio: II. Tempo di minuetto con espressione e andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 197.988
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.4
  additional property: Energy
    type: PropertyValue
    value: 0.004
  additional property: Speechiness
    type: PropertyValue
    value: 0.07
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.826
  additional property: Liveness
    type: PropertyValue
    value: 0.127
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.394
  additional property: Loudness (dB)
    type: PropertyValue
    value: -37.103
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le tre Grazie a Venere
type: MusicRecording
duration: PT4M59S
duration ms: 299000
explicit: false
by artist: Barbara Strozzi
by artist: San Petronio Cappella Musicale Soloists
by artist: Sergio Vartolo
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
isrc code: HKI199531005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T17:49:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0b93934cd53a29a8ddb8db2152ddaeecdc3671ec1dc5cc07240f4ad7c605893f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199531005
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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 0x0b93934cd53a29a8ddb8db2152ddaeecdc3671ec1dc5cc07240f4ad7c605893f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199531005.
  date published: 2026-07-02T03:30:09Z
audio: Le tre Grazie a Venere
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.822
  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: 0.302
  additional property: Energy
    type: PropertyValue
    value: 0.048
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.071
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.059
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.441
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

I. Largo
type: MusicRecording
duration: PT1M17S
duration ms: 77133
explicit: false
by artist: Pietro Locatelli
by artist: Capella Istropolitana
by artist: Jaroslav Krcek
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
genre: baroque
genre: concerto
isrc code: HKI199509220
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T19:08:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9db50cc53e9baccd7d219aec021e4b893001e8175cd4ae76c361e569fca71462
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/HKI199509220
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 0x9db50cc53e9baccd7d219aec021e4b893001e8175cd4ae76c361e569fca71462. 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/HKI199509220.
  date published: 2026-07-02T05:09:12Z
audio: I. Largo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.815
  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: 0.397
  additional property: Energy
    type: PropertyValue
    value: 0.123
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.932
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.106
  additional property: Liveness
    type: PropertyValue
    value: 0.125
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.597
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.704
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

II. Andante
type: MusicRecording
duration: PT2M32S
duration ms: 152693
explicit: false
by artist: Giuseppe Antonio Brescianello
by artist: Giuseppe Buscemi
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
isrc code: HKI192132104
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T05:06:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x38748a189e7b9342e750f348dc6393d6948c67bfdcd6700b6e6f403fb2df10be
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/HKI192132104
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 0x38748a189e7b9342e750f348dc6393d6948c67bfdcd6700b6e6f403fb2df10be. 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/HKI192132104.
  date published: 2026-07-02T05:09:12Z
audio: II. Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.881
  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: 0.48
  additional property: Energy
    type: PropertyValue
    value: 0.082
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.891
  additional property: Liveness
    type: PropertyValue
    value: 0.106
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.185
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.431
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sinfonia
type: MusicRecording
duration: PT1M54S
duration ms: 114266
explicit: false
by artist: Antonio Caldara
by artist: Mary Enid Haines
by artist: Linda Dayiantis-Straub
by artist: Jennifer Lane
by artist: David Arnot
by artist: Christopher Dawes
by artist: Aradia Ensemble
by artist: Kevin Mallon
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
genre: early-music
genre: baroque
genre: renaissance
isrc code: HKI199611001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T19:06:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5cc0d77bb127d5ccea6434edd401b099b58d984cf15d35289cb1db6101513d69
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/HKI199611001
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 0x5cc0d77bb127d5ccea6434edd401b099b58d984cf15d35289cb1db6101513d69. 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/HKI199611001.
  date published: 2026-07-02T05:09:12Z
audio: Sinfonia
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 123.331
  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: 0.418
  additional property: Energy
    type: PropertyValue
    value: 0.033
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.934
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.014
  additional property: Liveness
    type: PropertyValue
    value: 0.135
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.422
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.311
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Impara dal mio core
type: MusicRecording
duration: PT3M18S
duration ms: 198226
explicit: false
by artist: Rosanna Scalfi Marcello
by artist: Darryl Taylor
by artist: Ann Marie Morgan
by artist: Deborah Fox
by artist: Jory Vinikour
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
isrc code: HKI191509021
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T00:33:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9c311b12ebb22add3ffd1948d420b1fb038e46a4b2d3eb0a5f92708bc1aec38e
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/HKI191509021
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 0x9c311b12ebb22add3ffd1948d420b1fb038e46a4b2d3eb0a5f92708bc1aec38e. 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/HKI191509021.
  date published: 2026-07-02T03:55:08Z
audio: Impara dal mio core
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.999
  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: 0.384
  additional property: Energy
    type: PropertyValue
    value: 0.114
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.191
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.356
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.994
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

I. Preludio. Largo
type: MusicRecording
duration: PT2M33S
duration ms: 153600
explicit: false
by artist: Giovanni Mossi
by artist: Augusta McKay Lodge
by artist: Doug Balliett
by artist: Adam Cockerham
by artist: Elliot Figg
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
isrc code: HKI192003101
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T04:58:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x188016865ea6a105ff9711eb372a356d37346bb527234e8338d865632d87ec11
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/HKI192003101
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 0x188016865ea6a105ff9711eb372a356d37346bb527234e8338d865632d87ec11. 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/HKI192003101.
  date published: 2026-07-02T05:09:12Z
audio: I. Preludio. Largo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.116
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.242
  additional property: Energy
    type: PropertyValue
    value: 0.147
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.88
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.346
  additional property: Liveness
    type: PropertyValue
    value: 0.091
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.079
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.451
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
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VI. Siciliana
type: MusicRecording
duration: PT2M35S
duration ms: 155906
explicit: false
by artist: Alfredo Casella
by artist: Luca Ballerini
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
isrc code: HKI199746915
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T07:33:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb4018976b49ae07996be9207f60816bf4bb885295ee012823a48e8e9cbd34210
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/HKI199746915
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 0xb4018976b49ae07996be9207f60816bf4bb885295ee012823a48e8e9cbd34210. 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/HKI199746915.
  date published: 2026-07-02T03:55:08Z
audio: VI. Siciliana
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 96.62
  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: 0.237
  additional property: Energy
    type: PropertyValue
    value: 0.003
  additional property: Speechiness
    type: PropertyValue
    value: 0.063
  additional property: Acousticness
    type: PropertyValue
    value: 0.995
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.941
  additional property: Liveness
    type: PropertyValue
    value: 0.09
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.047
  additional property: Loudness (dB)
    type: PropertyValue
    value: -38.922
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

IV. Largo
type: MusicRecording
duration: PT1M21S
duration ms: 81000
explicit: false
by artist: Alessandro Scarlatti
by artist: Capella Istropolitana
by artist: Jaroslav Krcek
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
genre: classical
genre: italian-opera
genre: early-music
genre: baroque
genre: italian-baroque
isrc code: HKI199257831
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T04:55:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2177f3a2f2952018966895fdaba5a58eeb241f75cf1943dc551f46e3dd378a2a
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/HKI199257831
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 0x2177f3a2f2952018966895fdaba5a58eeb241f75cf1943dc551f46e3dd378a2a. 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/HKI199257831.
  date published: 2026-07-02T05:09:12Z
audio: IV. Largo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 164.029
  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: 0.173
  additional property: Energy
    type: PropertyValue
    value: 0.083
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.681
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.034
  additional property: Liveness
    type: PropertyValue
    value: 0.08
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.102
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.276
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Funiculi, funicula (Arr. For salon orchestra)
type: MusicRecording
duration: PT2M29S
duration ms: 149840
explicit: false
by artist: Luigi Denza
by artist: Slovak Radio Symphony Orchestra
by artist: Ondrej Lenard
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
genre: italian-romanticism
genre: post-romantic-era
genre: canzone-napoletana
isrc code: HKI199258113
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T04:55:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdee8b683791e3e3fd737f4939ad3d2fc2443a14394610cc95fff92f56e0a7175
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/HKI199258113
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 0xdee8b683791e3e3fd737f4939ad3d2fc2443a14394610cc95fff92f56e0a7175. 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/HKI199258113.
  date published: 2026-07-02T05:09:12Z
audio: Funiculi, funicula (Arr. For salon orchestra)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.031
  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: 0.493
  additional property: Energy
    type: PropertyValue
    value: 0.374
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.876
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.853
  additional property: Liveness
    type: PropertyValue
    value: 0.269
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.573
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.02
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
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Fantasia 31
type: MusicRecording
duration: PT1M20S
duration ms: 80800
explicit: false
by artist: Francesco da Milano
by artist: Shirley Rumsey
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
isrc code: HKI199490606
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T06:56:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x89e027730cfc0f4a81ff1bd10f838eee3f3d2370328a5ea94310e5502b22409b
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/HKI199490606
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 0x89e027730cfc0f4a81ff1bd10f838eee3f3d2370328a5ea94310e5502b22409b. 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/HKI199490606.
  date published: 2026-07-02T03:55:08Z
audio: Fantasia 31
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 148.492
  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: 0.285
  additional property: Energy
    type: PropertyValue
    value: 0.033
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.996
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.865
  additional property: Liveness
    type: PropertyValue
    value: 0.137
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.901
  additional property: Loudness (dB)
    type: PropertyValue
    value: -34.279
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Largo al factotum
type: MusicRecording
duration: PT4M41S
duration ms: 281093
explicit: false
by artist: Gioachino Rossini
by artist: Roberto Servile
by artist: Budapest Failoni Chamber Orchestra
by artist: Will Humburg
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
genre: classical
genre: opera
isrc code: HKI199320808
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T04:55:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf2cd953d3652f8ad2142712f2ec99bbf73db5b575c2aea0aedfbb1b45924e444
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/HKI199320808
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 0xf2cd953d3652f8ad2142712f2ec99bbf73db5b575c2aea0aedfbb1b45924e444. 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/HKI199320808.
  date published: 2026-07-02T05:09:12Z
audio: Largo al factotum
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.357
  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
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
    value: 0.067
  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
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III. Andante - Allegro
type: MusicRecording
duration: PT5M38S
duration ms: 338760
explicit: false
by artist: Giuseppe Tartini
by artist: Crtomir Siskovic
by artist: Luca Ferrini
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
genre: classical
genre: baroque
genre: italian-baroque
isrc code: ITN321615963
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T06:56:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xff552e672383079c728ef06b8ba50603b2ca267b19c792815dd6a277d080dd34
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/ITN321615963
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff552e672383079c728ef06b8ba50603b2ca267b19c792815dd6a277d080dd34. 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/ITN321615963.
  date published: 2026-07-02T03:55:08Z
audio: III. Andante - Allegro
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Speechiness
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Preludio for Piano
type: MusicRecording
duration: PT1M37S
duration ms: 97453
explicit: false
by artist: Camillo Togni
by artist: Aldo Orvieto
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
isrc code: HKI191946006
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: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191946006
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:34:59Z
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 0x28b1f3fbd1615baac42b10706b1fbe647eed86241e7ec01bcaaa98587890ed6b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/HKI191946006.
  date published: 2026-07-02T11:34:59Z
audio: Preludio for Piano
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
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  additional property: Energy
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    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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II. Andante
type: MusicRecording
duration: PT3M38S
duration ms: 218733
explicit: false
by artist: Antonio Vivaldi
by artist: Bela Sztankovitz
by artist: Zoltan Tokos
by artist: Budapest Strings
in album: Italian Classical Masterpieces
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  date published: 2025-06-14
isrc code: HKI199247818
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199247818
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:34:59Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9158678de70661536426da1e8a4efd3d43c1b7222e4f0cc5e51e19c1d0fd13dd. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/HKI199247818.
  date published: 2026-07-02T11:34:59Z
audio: II. Andante
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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Canzonette d'amore
type: MusicRecording
duration: PT2M36S
duration ms: 156760
explicit: false
by artist: Claudio Monteverdi
by artist: Concerto Delle Dame Di Ferrara
by artist: Sergio Vartolo
in album: Italian Classical Masterpieces
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  date published: 2025-06-14
genre: classical
genre: early-music
genre: baroque
genre: italian-baroque
genre: italian-renaissance
genre: madrigal
genre: renaissance
isrc code: HKI199507403
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: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199507403
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:34:59Z
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 0x0b375b1d4d73a3e8341009e1bd62635a157fb03df8aa1cefd9cef191bf64f7e3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/HKI199507403.
  date published: 2026-07-02T11:34:59Z
audio: Canzonette d'amore
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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II. Allegro vivo
type: MusicRecording
duration: PT1M44S
duration ms: 104706
explicit: false
by artist: Niccolò Paganini
by artist: Scott St. John
by artist: Simon Wynberg
in album: Italian Classical Masterpieces
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  date published: 2025-06-14
isrc code: HKI199283615
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: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199283615
additional property: OTSTimestamp
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761613e27c00ec2be0431ae1f082567a45e3c733644464b3b42e566118306d6e. 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/HKI199283615.
  date published: 2026-07-02T05:09:12Z
audio: II. Allegro vivo
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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I. Allegro assai: Adagio
type: MusicRecording
duration: PT2M5S
duration ms: 125693
explicit: false
by artist: Francesco Onofrio Manfredini
by artist: Capella Istropolitana
by artist: Jaroslav Krcek
in album: Italian Classical Masterpieces
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  date published: 2025-06-14
isrc code: HKI199821401
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xe196780c6cb6a4aa39ce4e1a0eca8bba32b1256cea3611cbe55e7f3afa0291ae
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956349
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199821401
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:34:59Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe196780c6cb6a4aa39ce4e1a0eca8bba32b1256cea3611cbe55e7f3afa0291ae. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/HKI199821401.
  date published: 2026-07-02T11:34:59Z
audio: I. Allegro assai: Adagio
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Valence (Positivity)
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Libiamo, ne'lieti calici
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duration: PT2M58S
duration ms: 178800
explicit: false
by artist: Giuseppe Verdi
by artist: Yordy Ramiro
by artist: Monika Krause
by artist: Slovak Philharmonic Chorus
by artist: Slovak Radio Symphony Orchestra
by artist: Ali Rahbari
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
genre: classical
genre: opera
isrc code: HKI199190105
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199190105
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20cc13dc145ed3ed1d4108737048077f26afc3ea29b33ed9216c22e317c6826. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/HKI199190105.
  date published: 2026-07-02T16:51:38Z
audio: Libiamo, ne'lieti calici
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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III. Largo, Illy No. 74
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duration: PT2M47S
duration ms: 167213
explicit: false
by artist: Baldassare Galuppi
by artist: Matteo Napoli
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
genre: classical-piano
isrc code: HKI191154403
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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  value: 2026-06-27T09:13:33+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191154403
additional property: OTSTimestamp
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ceba2ffb67645dbaf4a725c0f11e003e1739f9c22056bad0b6eb823bee07b04. 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/HKI191154403.
  date published: 2026-07-02T05:09:12Z
audio: III. Largo, Illy No. 74
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.011
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.518
  additional property: Energy
    type: PropertyValue
    value: 0.007
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.995
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.959
  additional property: Liveness
    type: PropertyValue
    value: 0.074
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.227
  additional property: Loudness (dB)
    type: PropertyValue
    value: -35.795
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Overture
type: MusicRecording
duration: PT3M29S
duration ms: 209760
explicit: false
by artist: Domenico Cimarosa
by artist: Czech Philharmonic Chamber Orchestra
by artist: Michael Halasz
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
genre: classical
genre: classical-piano
genre: requiem
isrc code: HKI191936812
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-28T06:09:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x67f960691e0f0d4757244ed1e331b798299137ec0df55a1e4fc5268c5ea5b25f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956375
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956375
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191936812
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T16:51:38Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f960691e0f0d4757244ed1e331b798299137ec0df55a1e4fc5268c5ea5b25f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/HKI191936812.
  date published: 2026-07-02T16:51:38Z
audio: Overture
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 151.962
  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: 0.481
  additional property: Energy
    type: PropertyValue
    value: 0.145
  additional property: Speechiness
    type: PropertyValue
    value: 0.079
  additional property: Acousticness
    type: PropertyValue
    value: 0.894
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.833
  additional property: Liveness
    type: PropertyValue
    value: 0.107
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.658
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.93
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

V. Allegro molto
type: MusicRecording
duration: PT1M25S
duration ms: 85173
explicit: false
by artist: Luigi Legnani
by artist: Pavel Steidl
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
genre: italian-romanticism
genre: classical-guitar
isrc code: HKI199740906
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-28T06:13:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x578e001401265f9b733e440d3677295784f18b4171cc7b1ef7b2cd21c186b9e8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956375
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956375
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199740906
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T16:51:38Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578e001401265f9b733e440d3677295784f18b4171cc7b1ef7b2cd21c186b9e8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/HKI199740906.
  date published: 2026-07-02T16:51:38Z
audio: V. Allegro molto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 150.367
  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: 0.416
  additional property: Energy
    type: PropertyValue
    value: 0.202
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.952
  additional property: Liveness
    type: PropertyValue
    value: 0.127
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.679
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.852
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Allegro
type: MusicRecording
duration: PT3M14S
duration ms: 194053
explicit: false
by artist: Nicola Porpora
by artist: Anna Holbling
by artist: Quido Holbling
by artist: Daniela Ruso
by artist: Vladimir Ruso
by artist: Ján Slávik
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
isrc code: HKI199257921
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-28T06:12:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x067f092230c13655b545113e2ad1b429a46c385eedc06908ce7912887c6d34cc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956375
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956375
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199257921
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T16:51:38Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067f092230c13655b545113e2ad1b429a46c385eedc06908ce7912887c6d34cc. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/HKI199257921.
  date published: 2026-07-02T16:51:38Z
audio: Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 146.25
  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: 0.474
  additional property: Energy
    type: PropertyValue
    value: 0.326
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.899
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.163
  additional property: Liveness
    type: PropertyValue
    value: 0.122
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.669
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.326
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Turandot, Act III Scene 1: Nessun dorma
type: MusicRecording
duration: PT3M5S
duration ms: 185706
explicit: false
by artist: Giacomo Puccini
by artist: Thomas Harper
by artist: Slovak Radio Symphony Orchestra
by artist: Michael Halasz
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
isrc code: HKI199208716
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-01-28T21:25:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x273da0d8574dca7de5a53f045983ca45497fadfad7773aad64278ea24a76a2e1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956375
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956375
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199208716
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T16:51:38Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273da0d8574dca7de5a53f045983ca45497fadfad7773aad64278ea24a76a2e1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/HKI199208716.
  date published: 2026-07-02T16:51:38Z
audio: Turandot, Act III Scene 1: Nessun dorma
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 91.674
  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: 0.152
  additional property: Energy
    type: PropertyValue
    value: 0.231
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.95
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.318
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.103
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.468
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

III. Minuetto (Featured in "The Ladykillers")
type: MusicRecording
duration: PT3M28S
duration ms: 208266
explicit: false
by artist: Luigi Boccherini
by artist: György Éder
by artist: Danubius String Quintet
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
genre: classical
isrc code: HKI199221411
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-28T06:41:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6b77639d6f11cfa73b9d923e40383ace17911d978038193f1e60043f08fc8c36
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956375
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956375
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199221411
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T16:51:38Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b77639d6f11cfa73b9d923e40383ace17911d978038193f1e60043f08fc8c36. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/HKI199221411.
  date published: 2026-07-02T16:51:38Z
audio: III. Minuetto (Featured in "The Ladykillers")
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.498
  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: 0.35
  additional property: Energy
    type: PropertyValue
    value: 0.032
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.963
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.421
  additional property: Liveness
    type: PropertyValue
    value: 0.089
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.365
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.416
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

IV. Allegro
type: MusicRecording
duration: PT3M24S
duration ms: 204800
explicit: false
by artist: Francesco Geminiani
by artist: Capella Istropolitana
by artist: Jaroslav Krcek
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
isrc code: HKI199626634
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-28T06:10:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3b6fa640fb69b9096e6b89879e3fc53ce0b9327f47aed84ebfe2ea0f545a6791
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956375
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956375
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199626634
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T16:51:38Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6fa640fb69b9096e6b89879e3fc53ce0b9327f47aed84ebfe2ea0f545a6791. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/HKI199626634.
  date published: 2026-07-02T16:51:38Z
audio: IV. Allegro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 147.914
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.526
  additional property: Energy
    type: PropertyValue
    value: 0.287
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.873
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.66
  additional property: Liveness
    type: PropertyValue
    value: 0.121
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.68
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.499
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

No. 2 in A Minor: Andantino sostenuto
type: MusicRecording
duration: PT2M58S
duration ms: 178826
explicit: false
by artist: Ferruccio Busoni
by artist: Wolf Harden
in album: Italian Classical Masterpieces
  type: MusicAlbum
  date published: 2025-06-14
genre: classical-piano
isrc code: HKI191221602
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T05:05:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x70f06a1f6cd86f2e2484bbe06fcd4d3ffafc04cc90a48c4d74edd766b622cc98
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956894
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956894
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191221602
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T07:53:57Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f06a1f6cd86f2e2484bbe06fcd4d3ffafc04cc90a48c4d74edd766b622cc98. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/HKI191221602.
  date published: 2026-07-06T07:53:57Z
audio: No. 2 in A Minor: Andantino sostenuto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.9
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.158
  additional property: Energy
    type: PropertyValue
    value: 0.07
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.889
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Stabat mater: Stabat mater dolorosa
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by artist: Julia Faulkner
by artist: Anna Gonda
by artist: Camerata De Budapest
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genre: choral
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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audio: Stabat mater: Stabat mater dolorosa
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IV. Presto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:53:57Z
audio: IV. Presto
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Illumina faciem tuam
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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audio: Illumina faciem tuam
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Intermezzo (Featured in "The Godfather Part III")
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by artist: Slovak Radio Symphony Orchestra
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subject of: OpenTimestamps Proof of Existence
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audio: Intermezzo (Featured in "The Godfather Part III")
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No. 2, Minuetto. Carezzevole
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subject of: OpenTimestamps Proof of Existence
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audio: No. 2, Minuetto. Carezzevole
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Keyboard Sonata in D Minor, K.32/L.423/P.14 (arr. Kyuhee Park for guitar)
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subject of: OpenTimestamps Proof of Existence
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Soprano Arias
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date published: 2004-06-07

Mozart: Nozze Di Figaro (Le) (The Marriage of Figaro)
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date published: 2004-05-08
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Sinfonia
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 16: Finale - Esci omai, garzon malnato
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 1: Recitativo - Cosa stai misurando
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 16: Susanna, son morta
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 16: Signori, di fuori
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 2: Recitativo - Or bene, ascolta, e taci!
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 16: Ah, signor...signor...
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 4: Aria - La vendetta, oh, la vendetta
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 17: Duettino - Crudel! Perché finora
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 4: Recitativo - Tutto ancor non ho perso
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 5: Recitativo - Va' la, vecchia pedante
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 6: Aria - Non so piu cosa son faccio
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 6: Recitativo - Ah son perduto!
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 19: Recitativo - Eccovi, o caro amico
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 7: Terzetto - Cosa sento! Tosto andate
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 8: Chorus - Giovani liete fiori spargete
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track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 9: Chorus - Giovani liete fiori spargete
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I No. 9: Recitativo - Evviva!
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 11: Cavatina - Porgi amor qualche ristoro
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 11: Recitativo - Vieni, cara Susanna
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 11: Recitativo - Quanto duolmi, Susanna
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 12: Arietta - Voi, che sapete
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 16: Susanna!...Signore
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 16: Voi, signor, che giusto siete
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 12: Recitativo - Bravo! Che bella voce!
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 13: Aria - Venite, inginocchiatevi
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 13: Recitativo - Quante buffonerie!
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 13: Recitativo - Che novità
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 14: Terzetto: Susanna, or via, sortite
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 15: Recitativo - Tutto e come il lasciai
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 16: Recitativo - Che imbarazzo e mai questo!
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 17: Recitativo - E perche fosti meco
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 18: Recitativo & Aria - Hai gia vinta la causa!...
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 18: Recitativo - E decisa la lite
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 19: Sestetto - Riconosci in questo amplesso
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 19: Recitativo - Andiam, andiam, bel paggio
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act III No. 20: Recitativo & Aria - E Susanna non vien!...Dove sono i bei momenti
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 14: Recitativo - Dunque voi non aprite?
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II No. 15: Duettino - Aprite, presto, aprite

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14 Songs, Op. 34 (arr. for cello and orchestra): Vocalise, Op. 34, No. 14 (arr. for cello and orchestra)
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Moments musicaux, Op. 16: 6 Moments musicaux, Op. 16: No. 3 Andante cantabile
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subject of: OpenTimestamps Proof of Existence
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audio: Moments musicaux, Op. 16: 6 Moments musicaux, Op. 16: No. 3 Andante cantabile
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Rhapsody on a Theme of Paganini, Op. 43: Variation 18
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T17:25:41Z
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Morceaux de fantaisie, Op. 3: 5 Morceaux de fantaisie, Op. 3: No. 2 Prelude in C-Sharp Minor
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subject of: OpenTimestamps Proof of Existence
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10 Preludes, Op. 23: No. 5 in G Minor: Alla marcia
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: 10 Preludes, Op. 23: No. 5 in G Minor: Alla marcia
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6 Songs, Op. 38 (version for piano): Daisies, Op. 38, No. 3 (piano version)
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  date published: 2026-07-08T03:53:27Z
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Rhapsody on a Theme of Paganini, Op. 43: Variation 23
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  date published: 2026-07-08T03:53:27Z
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Rhapsody on a Theme of Paganini, Op. 43: Variation 24
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Etudes-tableaux, Op. 33: 9 Etudes-Tableaux, Op. 33: No. 8 in G Minor: Moderato
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Etudes-tableaux, Op. 39: 9 Etudes-Tableaux, Op. 33: No. 9 in D Major: Allegro moderato
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Cello Sonata in G Minor, Op. 19: III. Andante
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Capolavori della musica classica italiana
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Classical Music: 50 of the Best Film Classics
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Rubinstein: Demon (The)
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Cinema Classics 2006
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Opera's Greatest Moments
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Klassik ohne Krise: Grandioser Gesang
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The Ultimate Mozart Opera Album
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Cinema Classics (The Very Best Of)
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Klassik ohne Krise – Ganz großes Kino
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The Ultimate Verdi Opera Album
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