Lorenzo Da Ponte
type: MusicGroup
genre: opera
description: thumb|Engraving by Michele Pekenino after Nathaniel Rogers ()Lorenzo Da Ponte (; 10 March 174917 August 1838) was an Italian, later American librettist, poet and Roman Catholic priest. He wrote the li
popularity: 28
followers: 187
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-12T19:24:56Z
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album: Karaoke Opera: Sixteen Favourite Arias and Duets
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  date published: 1992-01-01
  track: Il Barbiere di siviglia: Largo Al Factotum (The Barber Of Seville) Pt. 1
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    by artist: Czech Symphony Orchestra
    by artist: Susan McCulloch
    by artist: Stephen Page
    by artist: Anne-Marie Owens
    by artist: Julian Bigg
    by artist: John Oakman
    by artist: Prague Philharmonic Choir
    by artist: Fromental Halévy
    by artist: Georges Bizet
    by artist: Henri Meilhac
    by artist: Eugène Cormon
    by artist: Michel Carré
    by artist: Camille Saint-Saëns
    by artist: Jacques Offenbach
    by artist: Jules Barbier
    by artist: Giacomo Puccini
    by artist: Gioachino Rossini
    by artist: Giuseppe Verdi
    by artist: Francesco Maria Piave
    by artist: Wolfgang Amadeus Mozart
    by artist: Ruggero Leoncavallo
    by artist: Franco Alfano
    by artist: Giuseppe Adami
    by artist: Felix Lemaire
    by artist: Giuseppe Giacosa
    by artist: Luigi Illica
    by artist: Cesare Sterbini
    by artist: Giovacchino Forzano
    by artist: Lorenzo Da Ponte
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      type: MusicAlbum
      date published: 1992-01-01
    genre: symfonicky-orchestr
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      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T03:20:19Z
    audio: Il Barbiere di siviglia: Largo Al Factotum (The Barber Of Seville) Pt. 1
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  track: Gianni Schicchi: O Mio Babbino Caro (O My Beloved Daddy) Pt. 2
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    by artist: Anne-Marie Owens
    by artist: John Oakman
    by artist: Prague Philharmonic Choir
    by artist: Stephen Page
    by artist: Giovacchino Forzano
    by artist: Lorenzo Da Ponte
    by artist: Fromental Halévy
    by artist: Georges Bizet
    by artist: Henri Meilhac
    by artist: Eugène Cormon
    by artist: Michel Carré
    by artist: Camille Saint-Saëns
    by artist: Jacques Offenbach
    by artist: Jules Barbier
    by artist: Giacomo Puccini
    by artist: Gioachino Rossini
    by artist: Giuseppe Verdi
    by artist: Francesco Maria Piave
    by artist: Wolfgang Amadeus Mozart
    by artist: Ruggero Leoncavallo
    by artist: Franco Alfano
    by artist: Giuseppe Adami
    by artist: Felix Lemaire
    by artist: Giuseppe Giacosa
    by artist: Luigi Illica
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      type: MusicAlbum
      date published: 1992-01-01
    genre: symfonicky-orchestr
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    subject of: OpenTimestamps Proof of Existence
    audio: Gianni Schicchi: O Mio Babbino Caro (O My Beloved Daddy) Pt. 2
  track: La Traviata: Brindisi (Drinking Song) Pt. 1
  track: La Boheme: Quando M'en Vo (Musetta's Waltz Song) Pt. 1
  track: Gianna Schicchi: O Mio Babbino Caro (O My Beloved Daddy) Pt. 1
  track: Don Giovanni: Madamina (Catalogue Aria) Pt. 1
  track: Turandot: Nessun Dorma (None Shall Sleep) Pt. 1
track: Le nozze di Figaro, K. 492, Act 1: "Non più andrai"
track: Don Giovanni, K. 527, Act 1: "Madamina, il catalogo è questo"
track: Don Giovanni, K. 527, Act 1: "Fin ch'han dal vino"

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OTSTimestamp
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OTSVerifyInstructions
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value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
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encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a25a9920b75a786687ce4b7477ea4d936369669c3bd341c84beef74b011b4e1. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBLGL1252310.
date published: 2026-07-31T00:26:26Z

Gianni Schicchi: O Mio Babbino Caro (O My Beloved Daddy) Pt. 2
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La Traviata: Brindisi (Drinking Song) Pt. 1
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duration: PT3M16S
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by artist: John Oakman
by artist: Prague Philharmonic Choir
by artist: Stephen Page
by artist: Julian Bigg
by artist: Susan McCulloch
by artist: Fromental Halévy
by artist: Georges Bizet
by artist: Henri Meilhac
by artist: Eugène Cormon
by artist: Michel Carré
by artist: Camille Saint-Saëns
by artist: Jacques Offenbach
by artist: Jules Barbier
by artist: Giacomo Puccini
by artist: Gioachino Rossini
by artist: Giuseppe Verdi
by artist: Francesco Maria Piave
by artist: Wolfgang Amadeus Mozart
by artist: Ruggero Leoncavallo
by artist: Franco Alfano
by artist: Giuseppe Adami
by artist: Felix Lemaire
by artist: Giuseppe Giacosa
by artist: Luigi Illica
by artist: Cesare Sterbini
by artist: Giovacchino Forzano
by artist: Lorenzo Da Ponte
in album: Karaoke Opera: Sixteen Favourite Arias and Duets
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  date published: 1992-01-01
genre: symfonicky-orchestr
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T17:29:52Z
audio: La Traviata: Brindisi (Drinking Song) Pt. 1
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La Boheme: Quando M'en Vo (Musetta's Waltz Song) Pt. 1
type: MusicRecording
duration: PT2M40S
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by artist: Czech Symphony Orchestra
by artist: Stephen Page
by artist: Anne-Marie Owens
by artist: Prague Philharmonic Choir
by artist: John Oakman
by artist: Susan McCulloch
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by artist: Fromental Halévy
by artist: Georges Bizet
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by artist: Eugène Cormon
by artist: Michel Carré
by artist: Camille Saint-Saëns
by artist: Jacques Offenbach
by artist: Jules Barbier
by artist: Giacomo Puccini
by artist: Gioachino Rossini
by artist: Giuseppe Verdi
by artist: Francesco Maria Piave
by artist: Wolfgang Amadeus Mozart
by artist: Ruggero Leoncavallo
by artist: Franco Alfano
by artist: Giuseppe Adami
by artist: Felix Lemaire
by artist: Giuseppe Giacosa
by artist: Luigi Illica
by artist: Cesare Sterbini
by artist: Giovacchino Forzano
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genre: symfonicky-orchestr
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T06:42:11Z
audio: La Boheme: Quando M'en Vo (Musetta's Waltz Song) Pt. 1
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Gianna Schicchi: O Mio Babbino Caro (O My Beloved Daddy) Pt. 1
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by artist: Czech Symphony Orchestra
by artist: John Oakman
by artist: Prague Philharmonic Choir
by artist: Susan McCulloch
by artist: Julian Bigg
by artist: Stephen Page
by artist: Anne-Marie Owens
by artist: Fromental Halévy
by artist: Georges Bizet
by artist: Henri Meilhac
by artist: Eugène Cormon
by artist: Michel Carré
by artist: Camille Saint-Saëns
by artist: Jacques Offenbach
by artist: Jules Barbier
by artist: Giacomo Puccini
by artist: Gioachino Rossini
by artist: Giuseppe Verdi
by artist: Francesco Maria Piave
by artist: Wolfgang Amadeus Mozart
by artist: Ruggero Leoncavallo
by artist: Franco Alfano
by artist: Giuseppe Adami
by artist: Felix Lemaire
by artist: Giuseppe Giacosa
by artist: Luigi Illica
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by artist: Giovacchino Forzano
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLGL1252294
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T00:16:15Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1a18202150e9da348717a671fb9d817a639bbc27d6df5d0eeb6e1e77eefc34. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLGL1252294.
  date published: 2026-07-30T00:16:15Z
audio: Gianna Schicchi: O Mio Babbino Caro (O My Beloved Daddy) Pt. 1
  type: AudioObject
  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
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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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    value: -25.623
  additional property: Key Name
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    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Don Giovanni: Madamina (Catalogue Aria) Pt. 1
type: MusicRecording
duration: PT5M32S
duration ms: 332626
explicit: false
by artist: Czech Symphony Orchestra
by artist: John Oakman
by artist: Julian Bigg
by artist: Susan McCulloch
by artist: Anne-Marie Owens
by artist: Stephen Page
by artist: Prague Philharmonic Choir
by artist: Fromental Halévy
by artist: Georges Bizet
by artist: Henri Meilhac
by artist: Eugène Cormon
by artist: Michel Carré
by artist: Camille Saint-Saëns
by artist: Jacques Offenbach
by artist: Jules Barbier
by artist: Giacomo Puccini
by artist: Gioachino Rossini
by artist: Giuseppe Verdi
by artist: Francesco Maria Piave
by artist: Wolfgang Amadeus Mozart
by artist: Ruggero Leoncavallo
by artist: Franco Alfano
by artist: Giuseppe Adami
by artist: Felix Lemaire
by artist: Giuseppe Giacosa
by artist: Luigi Illica
by artist: Cesare Sterbini
by artist: Giovacchino Forzano
by artist: Lorenzo Da Ponte
in album: Karaoke Opera: Sixteen Favourite Arias and Duets
  type: MusicAlbum
  date published: 1992-01-01
genre: symfonicky-orchestr
isrc code: GBLGL1252295
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:42:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf8e980645f0ec35f9a4957add9154302191e2c191d894b4b940b8e828878d466
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/GBLGL1252295
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e980645f0ec35f9a4957add9154302191e2c191d894b4b940b8e828878d466. 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/GBLGL1252295.
  date published: 2026-07-08T03:53:27Z
audio: Don Giovanni: Madamina (Catalogue Aria) Pt. 1
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 161.332
  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: 0.229
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.951
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.561
  additional property: Liveness
    type: PropertyValue
    value: 0.103
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.161
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.711
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
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Turandot: Nessun Dorma (None Shall Sleep) Pt. 1
type: MusicRecording
duration: PT3M29S
duration ms: 209133
explicit: false
by artist: Czech Symphony Orchestra
by artist: Anne-Marie Owens
by artist: Stephen Page
by artist: Prague Philharmonic Choir
by artist: John Oakman
by artist: Julian Bigg
by artist: Susan McCulloch
by artist: Fromental Halévy
by artist: Georges Bizet
by artist: Henri Meilhac
by artist: Eugène Cormon
by artist: Michel Carré
by artist: Camille Saint-Saëns
by artist: Jacques Offenbach
by artist: Jules Barbier
by artist: Giacomo Puccini
by artist: Gioachino Rossini
by artist: Giuseppe Verdi
by artist: Francesco Maria Piave
by artist: Wolfgang Amadeus Mozart
by artist: Ruggero Leoncavallo
by artist: Franco Alfano
by artist: Giuseppe Adami
by artist: Felix Lemaire
by artist: Giuseppe Giacosa
by artist: Luigi Illica
by artist: Cesare Sterbini
by artist: Giovacchino Forzano
by artist: Lorenzo Da Ponte
in album: Karaoke Opera: Sixteen Favourite Arias and Duets
  type: MusicAlbum
  date published: 1992-01-01
genre: symfonicky-orchestr
isrc code: GBLGL1252297
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T11:50:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9931b1abd50183c02d8d655811a36742c83d0e0c5ba764ff14691e58c9b5c542
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLGL1252297
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9931b1abd50183c02d8d655811a36742c83d0e0c5ba764ff14691e58c9b5c542. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBLGL1252297.
  date published: 2026-07-31T12:24:41Z
audio: Turandot: Nessun Dorma (None Shall Sleep) Pt. 1
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.682
  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: 0.123
  additional property: Energy
    type: PropertyValue
    value: 0.1
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.949
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.876
  additional property: Liveness
    type: PropertyValue
    value: 0.124
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.061
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.318
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Le nozze di Figaro, K. 492, Act 1: "Non più andrai"
type: MusicRecording
duration: PT3M50S
duration ms: 230533
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Lorenzo Da Ponte
by artist: Teddy Tahu Rhodes
by artist: Ola Rudner
by artist: Tasmanian Symphony Orchestra
in album: Mozart Arias and Orchestral Music
  type: MusicAlbum
  date published: 2012-09-14
popularity: 8
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: AUAB00350263
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T11:32:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb83bc2a9adb79e7df76b8615058744e68783578a209b35a8a6c90bbaae74c18a
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/AUAB00350263
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83bc2a9adb79e7df76b8615058744e68783578a209b35a8a6c90bbaae74c18a. 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/AUAB00350263.
  date published: 2026-07-08T03:20:19Z
audio: Le nozze di Figaro, K. 492, Act 1: "Non più andrai"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.344
  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: 0.58
  additional property: Energy
    type: PropertyValue
    value: 0.199
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.341
  additional property: Liveness
    type: PropertyValue
    value: 0.083
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.545
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.763
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Don Giovanni, K. 527, Act 1: "Madamina, il catalogo è questo"
type: MusicRecording
duration: PT6M4S
duration ms: 364533
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Lorenzo Da Ponte
by artist: Teddy Tahu Rhodes
by artist: Ola Rudner
by artist: Tasmanian Symphony Orchestra
in album: Mozart Arias and Orchestral Music
  type: MusicAlbum
  date published: 2012-09-14
popularity: 4
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: AUAB01250447
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T22:40:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc5063ffb0bcbfe5a16b78108d6f5744e8e65466d11f237577a06864a0454d813
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/AUAB01250447
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5063ffb0bcbfe5a16b78108d6f5744e8e65466d11f237577a06864a0454d813. 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/AUAB01250447.
  date published: 2026-07-08T03:20:19Z
audio: Don Giovanni, K. 527, Act 1: "Madamina, il catalogo è questo"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.679
  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: 0.3
  additional property: Energy
    type: PropertyValue
    value: 0.189
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.97
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.318
  additional property: Liveness
    type: PropertyValue
    value: 0.067
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.217
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.154
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Don Giovanni, K. 527, Act 1: "Fin ch'han dal vino"
type: MusicRecording
duration: PT1M20S
duration ms: 80600
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Lorenzo Da Ponte
by artist: Teddy Tahu Rhodes
by artist: Ola Rudner
by artist: Tasmanian Symphony Orchestra
in album: Mozart Arias and Orchestral Music
  type: MusicAlbum
  date published: 2012-09-14
popularity: 1
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: AUAB00350267
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T07:04:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x99f790a629629af800697f1e0231102e245cd1c05f8b4a238c2e0786148522ff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960368
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960368
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUAB00350267
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f790a629629af800697f1e0231102e245cd1c05f8b4a238c2e0786148522ff. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/AUAB00350267.
  date published: 2026-07-31T08:26:41Z
audio: Don Giovanni, K. 527, Act 1: "Fin ch'han dal vino"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.42
  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: 0.598
  additional property: Energy
    type: PropertyValue
    value: 0.614
  additional property: Speechiness
    type: PropertyValue
    value: 0.076
  additional property: Acousticness
    type: PropertyValue
    value: 0.956
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.943
  additional property: Liveness
    type: PropertyValue
    value: 0.155
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.368
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.859
  additional property: Key Name
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    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major