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album: Bizet: Carmen, WD 31 (Live)
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  track: Violin Concerto in B-Flat Major (arr. G. Catalucci violin and chamber ensemble)
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track: Lucrezia Borgia: Act II Scene 8: Figlio! … Era desso il figlio mio (Lucrezia)
track: Lucrezia Borgia: Prologue, Scene 3: Com'e bello (Lucrezia)
track: Lucrezia Borgia: Act I Scene 1: Vieni, la mia vendetta (Duca)

Stabat Mater, P. 77: I. Stabat Mater dolorosa
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Violin Concerto in B-Flat Major (arr. G. Catalucci violin and chamber ensemble)
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Lucrezia Borgia: Prologue, Scene 1: Senti! La danza invitaci (Chorus)
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Lucrezia Borgia: Prologue, Scene 3: Maffio Orsini, signora, son'io (Orsini, Gazella, Petrucci, Liverotto, Gennaro, Lucrezia)
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  date published: 2026-07-08T08:56:20Z
audio: Lucrezia Borgia: Prologue, Scene 3: Maffio Orsini, signora, son'io (Orsini, Gazella, Petrucci, Liverotto, Gennaro, Lucrezia)
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Lucrezia Borgia: Act I: Finale: Infelice! Il veleno bevesti (Lucrezia, Gennaro)
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by artist: Mariella Devia
by artist: Giuseppe Filianoti
by artist: Orchestra Filarmonica Marchigiana
by artist: Marco Guidarini
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popularity: 1
genre: opera
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T08:56:20Z
audio: Lucrezia Borgia: Act I: Finale: Infelice! Il veleno bevesti (Lucrezia, Gennaro)
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Lucrezia Borgia: Act II Scene 8: Figlio! … Era desso il figlio mio (Lucrezia)
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duration: PT7M14S
duration ms: 434160
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by artist: Gaetano Donizetti
by artist: Mariella Devia
by artist: Orchestra Filarmonica Marchigiana
by artist: Marco Guidarini
in album: Donizetti: Lucrezia Borgia
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  date published: 2014-08-01
popularity: 2
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T19:11:09Z
audio: Lucrezia Borgia: Act II Scene 8: Figlio! … Era desso il figlio mio (Lucrezia)
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additional property: OTSVerifyInstructions
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Lucrezia Borgia: Prologue, Scene 3: Com'e bello (Lucrezia)
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duration: PT5M26S
duration ms: 326226
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by artist: Gaetano Donizetti
by artist: Mariella Devia
by artist: Orchestra Filarmonica Marchigiana
by artist: Marco Guidarini
in album: Donizetti: Lucrezia Borgia
  type: MusicAlbum
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popularity: 1
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T09:25:34Z
audio: Lucrezia Borgia: Prologue, Scene 3: Com'e bello (Lucrezia)
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additional property: OTSVerifyInstructions
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Lucrezia Borgia: Act I Scene 1: Vieni, la mia vendetta (Duca)
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duration: PT4M45S
duration ms: 285986
explicit: false
by artist: Gaetano Donizetti
by artist: Alex Esposito
by artist: Orchestra Filarmonica Marchigiana
by artist: Marco Guidarini
in album: Donizetti: Lucrezia Borgia
  type: MusicAlbum
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popularity: 1
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T02:19:15Z
audio: Lucrezia Borgia: Act I Scene 1: Vieni, la mia vendetta (Duca)
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additional property: OTSVerifyInstructions
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Persiani: Ines de Castro (Live)
type: MusicAlbum
date published: 2013-11-01

Perosi: L'entrata di Cristo in Gerusalemme
type: MusicAlbum
date published: 2013-08-01

Novecentoitaliano
type: MusicAlbum
date published: 2013-08-01

Rossi: Cleopatra
type: MusicAlbum
date published: 2011-03-01

Domenico Cimarosa: Il matrimonio segreto
type: MusicAlbum
date published: 2006-09-15

Mahler: Symphony No. 9
type: MusicAlbum
date published: 2000-01-01

Figaros Hochzeit
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date published: 1999-12-30
track: Le Nozze di Figaro: Atto primo: Ouvertura
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T11:38:34Z
  audio: Le Nozze di Figaro: Atto primo: Ouvertura
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track: Le Nozze di Figaro: Atto primo: No. 2 Duettino (Susanna, Figaro): Se a caso madama la notte ti chiama
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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track: Le Nozze di Figaro: Atto secondo: No. 14 Duettino (Susanna, Cherubino): Aprite presto, aprite
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  genre: classical-era
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  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Le Nozze di Figaro: Atto secondo: No. 14 Duettino (Susanna, Cherubino): Aprite presto, aprite
track: Le Nozze di Figaro: Atto primo: Recitativo: Or bene;; ascolta, e taci!
track: Le Nozze di Figaro: Atto primo: No. 3 Cavatina (Figaro): Se vuol ballare signor Contino
track: Le Nozze di Figaro: Atto secondo: No. 15 Finale (Susanna, Contessa, Marcellina, Basilio, Conte, Antonio, Bartolo, Figaro): Esci omai garzon malnato
track: Le Nozze di Figaro: Atto primo: No. 4 Aria (Bartolo): La vendetta, oh la vendetta!
track: Le Nozze di Figaro: Atto primo: Recitativo: Tutto ancor non ho perso
track: Le Nozze di Figaro: Atto secondo: Conoscete, Signor Figaro
track: Le Nozze di Figaro: Atto primo: Recitativo: Va'là, vecchia pedante
track: Le Nozze di Figaro: Atto primo: No. 6 Aria (Cherubino): Non so più cosa son, cosa faccio
track: Le Nozze di Figaro: Atto secondo: Vol Signor, che giusto siete
track: Le Nozze di Figaro: Atto primo: No. 8 Coro: Giovani liete fiori spargete
track: Le Nozze di Figaro: Atto primo: Recitativo: Cos'è questa commedia?
track: Le Nozze di Figaro: Atto primo: Coro: Giovani liete fiori spargete
track: Le Nozze di Figaro: Atto primo: Recitativo: Evviva!
track: Le Nozze di Figaro: Atto secondo: No. 10 Cavatina (Contessa): Porgi amor qualche ristoro
track: Le Nozze di Figaro: Atto secondo: No. 11 Arietta (Cherubino): Voi che sapete che cosa è amor
track: Le Nozze di Figaro: Atto secondo: Recitativo: Bravo! Che bella voce!

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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e9f8e821f2dc606d94c58cc5b365d010708e3a4572a61e4458eeb3f8122550. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEP620001413.
date published: 2026-07-08T03:39:04Z

Le Nozze di Figaro: Atto secondo: No. 14 Duettino (Susanna, Cherubino): Aprite presto, aprite
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additional property: Valence (Positivity)
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Le Nozze di Figaro: Atto primo: Recitativo: Or bene;; ascolta, e taci!
type: MusicRecording
duration: PT2M37S
duration ms: 157640
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Gustav Kuhn
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genre: classical
genre: classical-era
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP620001387
additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8498bbbb644c5fa4680414b1a99c3cd18c71bb46a90ec5e16d0a15ee1cbbb2e6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP620001387.
  date published: 2026-07-08T08:56:20Z
audio: Le Nozze di Figaro: Atto primo: Recitativo: Or bene;; ascolta, e taci!
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Le Nozze di Figaro: Atto primo: No. 3 Cavatina (Figaro): Se vuol ballare signor Contino
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duration: PT2M39S
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explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Gustav Kuhn
in album: Figaros Hochzeit
  type: MusicAlbum
  date published: 1999-12-30
genre: classical
genre: classical-era
isrc code: DEP620001388
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/DEP620001388
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a0e6bb9f4996a1199018b8b68c599f274e0ddb5784248d4d709e0400da209e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP620001388.
  date published: 2026-07-08T03:22:41Z
audio: Le Nozze di Figaro: Atto primo: No. 3 Cavatina (Figaro): Se vuol ballare signor Contino
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Le Nozze di Figaro: Atto secondo: No. 15 Finale (Susanna, Contessa, Marcellina, Basilio, Conte, Antonio, Bartolo, Figaro): Esci omai garzon malnato
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duration: PT2M37S
duration ms: 157893
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Gustav Kuhn
in album: Figaros Hochzeit
  type: MusicAlbum
  date published: 1999-12-30
genre: classical
genre: classical-era
isrc code: DEP620001415
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/DEP620001415
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded2b7007ceed95ad8173678bc47c302dc5a24c586504364e988c991c04a402b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP620001415.
  date published: 2026-07-08T03:20:19Z
audio: Le Nozze di Figaro: Atto secondo: No. 15 Finale (Susanna, Contessa, Marcellina, Basilio, Conte, Antonio, Bartolo, Figaro): Esci omai garzon malnato
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  additional property: Acousticness
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Le Nozze di Figaro: Atto primo: No. 4 Aria (Bartolo): La vendetta, oh la vendetta!
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duration: PT3M11S
duration ms: 191613
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Gustav Kuhn
in album: Figaros Hochzeit
  type: MusicAlbum
  date published: 1999-12-30
genre: classical
genre: classical-era
isrc code: DEP620001390
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
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP620001390
additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6cabd16928d8fcf904745e680939cf5a04e52eb910fdde153ad0c1267313822. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP620001390.
  date published: 2026-07-08T03:20:19Z
audio: Le Nozze di Figaro: Atto primo: No. 4 Aria (Bartolo): La vendetta, oh la vendetta!
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Le Nozze di Figaro: Atto primo: Recitativo: Tutto ancor non ho perso
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duration: PT0M49S
duration ms: 49106
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Gustav Kuhn
in album: Figaros Hochzeit
  type: MusicAlbum
  date published: 1999-12-30
genre: classical
genre: classical-era
isrc code: DEP620001391
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
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27d1e7861e023f5e226a586ddf347b0929650546e0073d8e7656248d7795de3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP620001391.
  date published: 2026-07-08T03:22:41Z
audio: Le Nozze di Figaro: Atto primo: Recitativo: Tutto ancor non ho perso
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  additional property: Mode (Major/Minor)
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  additional property: Liveness
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  additional property: Valence (Positivity)
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Le Nozze di Figaro: Atto secondo: Conoscete, Signor Figaro
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duration: PT2M28S
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explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Gustav Kuhn
in album: Figaros Hochzeit
  type: MusicAlbum
  date published: 1999-12-30
genre: classical
genre: classical-era
isrc code: DEP620001418
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
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17087e2baa9cca5183a301ddad67837d700bbf13eb3917628bf55dd03afd84a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP620001418.
  date published: 2026-07-08T03:20:19Z
audio: Le Nozze di Figaro: Atto secondo: Conoscete, Signor Figaro
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  additional property: Tempo (BPM)
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    value: 125.804
  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: 0.492
  additional property: Energy
    type: PropertyValue
    value: 0.073
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.694
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.488
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.852
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le Nozze di Figaro: Atto primo: Recitativo: Va'là, vecchia pedante
type: MusicRecording
duration: PT1M56S
duration ms: 116613
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Gustav Kuhn
in album: Figaros Hochzeit
  type: MusicAlbum
  date published: 1999-12-30
genre: classical
genre: classical-era
isrc code: DEP620001393
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:42:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x140dd062d9415181e952e6e516fddd023d52831d8a3adf563216297861e8ac55
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP620001393
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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 0x140dd062d9415181e952e6e516fddd023d52831d8a3adf563216297861e8ac55. 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/DEP620001393.
  date published: 2026-07-08T03:53:27Z
audio: Le Nozze di Figaro: Atto primo: Recitativo: Va'là, vecchia pedante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.942
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.517
  additional property: Energy
    type: PropertyValue
    value: 0.07
  additional property: Speechiness
    type: PropertyValue
    value: 0.344
  additional property: Acousticness
    type: PropertyValue
    value: 0.952
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.224
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.217
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.898
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le Nozze di Figaro: Atto primo: No. 6 Aria (Cherubino): Non so più cosa son, cosa faccio
type: MusicRecording
duration: PT2M47S
duration ms: 167306
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Gustav Kuhn
in album: Figaros Hochzeit
  type: MusicAlbum
  date published: 1999-12-30
genre: classical
genre: classical-era
isrc code: DEP620001394
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:08:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5a2e21770b69ebfd68be8df6b89b0de7ae5dfcd652703f8ad88540f0e0e909fc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP620001394
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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 0x5a2e21770b69ebfd68be8df6b89b0de7ae5dfcd652703f8ad88540f0e0e909fc. 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/DEP620001394.
  date published: 2026-07-08T03:53:27Z
audio: Le Nozze di Figaro: Atto primo: No. 6 Aria (Cherubino): Non so più cosa son, cosa faccio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.966
  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: 0.42
  additional property: Energy
    type: PropertyValue
    value: 0.202
  additional property: Speechiness
    type: PropertyValue
    value: 0.22
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.738
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.142
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.545
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le Nozze di Figaro: Atto secondo: Vol Signor, che giusto siete
type: MusicRecording
duration: PT3M54S
duration ms: 234053
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Gustav Kuhn
in album: Figaros Hochzeit
  type: MusicAlbum
  date published: 1999-12-30
genre: classical
genre: classical-era
isrc code: DEP620001421
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:36:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x949050715b4ca48fe9590620553487e110033f66f45be6d88cc4c36fbd9d8575
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP620001421
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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 0x949050715b4ca48fe9590620553487e110033f66f45be6d88cc4c36fbd9d8575. 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/DEP620001421.
  date published: 2026-07-08T03:53:27Z
audio: Le Nozze di Figaro: Atto secondo: Vol Signor, che giusto siete
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.905
  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: 0.386
  additional property: Energy
    type: PropertyValue
    value: 0.402
  additional property: Speechiness
    type: PropertyValue
    value: 0.164
  additional property: Acousticness
    type: PropertyValue
    value: 0.953
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.786
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.533
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.145
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le Nozze di Figaro: Atto primo: No. 8 Coro: Giovani liete fiori spargete
type: MusicRecording
duration: PT1M10S
duration ms: 70240
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Gustav Kuhn
in album: Figaros Hochzeit
  type: MusicAlbum
  date published: 1999-12-30
genre: classical
genre: classical-era
isrc code: DEP620001398
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:04:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x46d45b85fd0a7341a9f24e424f289fa1e55206a4e6fd6f62a3e1578585cc1c32
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP620001398
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d45b85fd0a7341a9f24e424f289fa1e55206a4e6fd6f62a3e1578585cc1c32. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP620001398.
  date published: 2026-07-08T03:22:41Z
audio: Le Nozze di Figaro: Atto primo: No. 8 Coro: Giovani liete fiori spargete
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.057
  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: 0.295
  additional property: Energy
    type: PropertyValue
    value: 0.088
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.359
  additional property: Liveness
    type: PropertyValue
    value: 0.42
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.581
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.813
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le Nozze di Figaro: Atto primo: Recitativo: Cos'è questa commedia?
type: MusicRecording
duration: PT1M19S
duration ms: 79173
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Gustav Kuhn
in album: Figaros Hochzeit
  type: MusicAlbum
  date published: 1999-12-30
genre: classical
genre: classical-era
isrc code: DEP620001399
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:39:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x216aaa0d4cce1690031e2fd74d578594b2668374257da9f2984606bc68920f18
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/DEP620001399
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216aaa0d4cce1690031e2fd74d578594b2668374257da9f2984606bc68920f18. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP620001399.
  date published: 2026-07-08T03:20:19Z
audio: Le Nozze di Figaro: Atto primo: Recitativo: Cos'è questa commedia?
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.919
  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: 0.501
  additional property: Energy
    type: PropertyValue
    value: 0.13
  additional property: Speechiness
    type: PropertyValue
    value: 0.098
  additional property: Acousticness
    type: PropertyValue
    value: 0.961
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.817
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.536
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.506
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le Nozze di Figaro: Atto primo: Coro: Giovani liete fiori spargete
type: MusicRecording
duration: PT0M58S
duration ms: 58733
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Gustav Kuhn
in album: Figaros Hochzeit
  type: MusicAlbum
  date published: 1999-12-30
genre: classical
genre: classical-era
isrc code: DEP620001400
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:41:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe71ca1983ae9e02700c521fbbbe9c15393392a6324548d2f9a370b0bf4789ead
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP620001400
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71ca1983ae9e02700c521fbbbe9c15393392a6324548d2f9a370b0bf4789ead. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP620001400.
  date published: 2026-07-08T03:22:41Z
audio: Le Nozze di Figaro: Atto primo: Coro: Giovani liete fiori spargete
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.401
  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: 0.412
  additional property: Energy
    type: PropertyValue
    value: 0.133
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.972
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.034
  additional property: Liveness
    type: PropertyValue
    value: 0.337
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.48
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.539
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le Nozze di Figaro: Atto primo: Recitativo: Evviva!
type: MusicRecording
duration: PT1M21S
duration ms: 81226
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Gustav Kuhn
in album: Figaros Hochzeit
  type: MusicAlbum
  date published: 1999-12-30
genre: classical
genre: classical-era
isrc code: DEP620001401
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:41:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x078b8af49de36b33b3ce02dcb3267fa0e9e4b8d7ab389e5336f889b1f51be057
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP620001401
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078b8af49de36b33b3ce02dcb3267fa0e9e4b8d7ab389e5336f889b1f51be057. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP620001401.
  date published: 2026-07-08T03:22:41Z
audio: Le Nozze di Figaro: Atto primo: Recitativo: Evviva!
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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
    type: PropertyValue
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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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Le Nozze di Figaro: Atto secondo: No. 10 Cavatina (Contessa): Porgi amor qualche ristoro
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duration: PT4M31S
duration ms: 271106
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Gustav Kuhn
in album: Figaros Hochzeit
  type: MusicAlbum
  date published: 1999-12-30
genre: classical
genre: classical-era
isrc code: DEP620001403
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/0x17128c2af17b1832ad86c34e90be43cd58b2e9c93a0371e6b70c1495361b2407
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/DEP620001403
additional property: OTSTimestamp
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  value: 2026-07-08T03:53:27Z
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 0x17128c2af17b1832ad86c34e90be43cd58b2e9c93a0371e6b70c1495361b2407. 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/DEP620001403.
  date published: 2026-07-08T03:53:27Z
audio: Le Nozze di Figaro: Atto secondo: No. 10 Cavatina (Contessa): Porgi amor qualche ristoro
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  additional property: Danceability
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Le Nozze di Figaro: Atto secondo: No. 11 Arietta (Cherubino): Voi che sapete che cosa è amor
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duration: PT3M7S
duration ms: 187226
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Gustav Kuhn
in album: Figaros Hochzeit
  type: MusicAlbum
  date published: 1999-12-30
genre: classical
genre: classical-era
isrc code: DEP620001407
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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  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP620001407
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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 0xc8eb13f10a10322c1c9eca91a3b9c9094d0691d679a31f2ce13922305a4c42eb. 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/DEP620001407.
  date published: 2026-07-08T03:53:27Z
audio: Le Nozze di Figaro: Atto secondo: No. 11 Arietta (Cherubino): Voi che sapete che cosa è amor
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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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
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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: Key Name
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Le Nozze di Figaro: Atto secondo: Recitativo: Bravo! Che bella voce!
type: MusicRecording
duration: PT1M18S
duration ms: 78413
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Gustav Kuhn
in album: Figaros Hochzeit
  type: MusicAlbum
  date published: 1999-12-30
genre: classical
genre: classical-era
isrc code: DEP620001408
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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  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP620001408
additional property: OTSTimestamp
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  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4643d9e32f45094f7517e05f60b2f0ca182dec9eb0cfbc3a6a8857a4d079b3f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEP620001408.
  date published: 2026-07-08T08:56:20Z
audio: Le Nozze di Figaro: Atto secondo: Recitativo: Bravo! Che bella voce!
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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: Liveness
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  additional property: Valence (Positivity)
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Pergolesi: Stabat Mater
type: MusicAlbum
date published: 1998-07-05

Opera totale
type: MusicAlbum
date published: 1996-10-05