Cesare Sterbini
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description: thumb|Cesare Sterbini Cesare Sterbini (1784 – 19 January 1831) was an Italian writer and librettist. Possessing a deep knowledge of classical and contemporary culture, philosophy, linguistics, he was
popularity: 9
followers: 76
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 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. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin 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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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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      date published: 1992-01-01
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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: 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
    by artist: Cesare Sterbini
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      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: Largo al factotum (Act I)
track: The Barber of Seville, Act I: Una voce poco fa (Rosina)

CopyrightChainExplorerURL
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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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
type: DigitalDocument
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLGL1252310 — a six-check JSON result.
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: Czech Symphony Orchestra
by artist: Anne-Marie Owens
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
isrc code: GBLGL1252290
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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 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
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by artist: Stephen Page
by artist: Anne-Marie Owens
by artist: Prague Philharmonic Choir
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by artist: Susan McCulloch
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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
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by artist: Giuseppe Giacosa
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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
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Gianna Schicchi: O Mio Babbino Caro (O My Beloved Daddy) Pt. 1
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duration: PT2M2S
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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
by artist: Cesare Sterbini
by artist: Giovacchino Forzano
by artist: Lorenzo Da Ponte
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genre: symfonicky-orchestr
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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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLGL1252294 — a six-check JSON result.
  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)
    type: PropertyValue
    value: 166.092
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.094
  additional property: Energy
    type: PropertyValue
    value: 0.106
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.816
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.22
  additional property: Liveness
    type: PropertyValue
    value: 0.104
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.076
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.623
  additional property: Key Name
    type: PropertyValue
    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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLGL1252295 — a six-check JSON result.
  date published: 2026-07-08T03:53:27Z
audio: Don Giovanni: Madamina (Catalogue Aria) Pt. 1
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    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
    type: PropertyValue
    value: 0.051
  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
    value: Major

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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLGL1252297 — a six-check JSON result.
  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

Largo al factotum (Act I)
type: MusicRecording
duration: PT4M52S
duration ms: 292773
explicit: false
by artist: Cesare Sterbini
by artist: Gioachino Rossini
by artist: Royal Philharmonic Orchestra
by artist: Owain Arwel Hughes
in album: Grand Opera Gala
  type: MusicAlbum
  date published: 2004-05-03
popularity: 4
isrc code: GBGRH0400213
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T01:55:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0f829a90b1834641310adf0cc3fcf7342ea19c8657d7b1996112c87fbe400299
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960334
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960334
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH0400213
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:19:15Z
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 0x0f829a90b1834641310adf0cc3fcf7342ea19c8657d7b1996112c87fbe400299. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGRH0400213 — a six-check JSON result.
  date published: 2026-07-31T02:19:15Z
audio: Largo al factotum (Act I)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 97.523
  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: 0.356
  additional property: Energy
    type: PropertyValue
    value: 0.272
  additional property: Speechiness
    type: PropertyValue
    value: 0.069
  additional property: Acousticness
    type: PropertyValue
    value: 0.956
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.026
  additional property: Liveness
    type: PropertyValue
    value: 0.177
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.551
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.626
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

The Barber of Seville, Act I: Una voce poco fa (Rosina)
type: MusicRecording
duration: PT5M44S
duration ms: 344800
explicit: false
by artist: Cesare Sterbini
by artist: Gioachino Rossini
by artist: Beverly Sills
by artist: James Levine
by artist: London Symphony Orchestra
in album: The Best of Italian Classical Music
  type: MusicAlbum
  date published: 2020-04-04
popularity: 1
isrc code: GBAYC9600391
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3c7b26ce8ab79a59d0493f30c4fafa2d2507b45096ad9e563483677ace84904b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960327
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960327
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9600391
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T00:26:26Z
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 0x3c7b26ce8ab79a59d0493f30c4fafa2d2507b45096ad9e563483677ace84904b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9600391 — a six-check JSON result.
  date published: 2026-07-31T00:26:26Z
audio: The Barber of Seville, Act I: Una voce poco fa (Rosina)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.259
  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: 0.409
  additional property: Energy
    type: PropertyValue
    value: 0.128
  additional property: Speechiness
    type: PropertyValue
    value: 0.066
  additional property: Acousticness
    type: PropertyValue
    value: 0.972
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.194
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.127
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.059
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major