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type: MusicGroup
genre: opera
popularity: 9
followers: 59
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x87ae37bed2beaf1a861242f1c09d367a12cb06d7692d2985a58bb82527e9800a
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/ab1f37c8-da6f-4ce0-a5e5-60c3d60471bf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ab1f37c8-da6f-4ce0-a5e5-60c3d60471bf.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ab1f37c8-da6f-4ce0-a5e5-60c3d60471bf
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ae37bed2beaf1a861242f1c09d367a12cb06d7692d2985a58bb82527e9800a. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab1f37c8-da6f-4ce0-a5e5-60c3d60471bf.json and https://artists.proofprofile.net/proofs/artist/ab1f37c8-da6f-4ce0-a5e5-60c3d60471bf.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-20T10:56:20Z
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track: Verdi: Il trovatore, Act 3 Scene 6: "Ah sì, ben mio, coll'essere … Di quella pira" (Manrico, Leonora, Ruiz, Chorus)
  type: MusicRecording
  duration: PT7M14S
  duration ms: 434000
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  by artist: Giuseppe Verdi
  by artist: Gabriella Tucci
  by artist: Franco Corelli
  by artist: Angelo Mercuriali
  by artist: Mario Rinaudo
  by artist: Coro Del Teatro Dell'Opera Di Roma
  by artist: Renata Scotto, Carlo Bergonzi, Orchestra del Teatro dell’Opera di Roma & Sir John Barbirolli
  by artist: Thomas Schippers
  by artist: Orchestra Del Teatro Dell'Opera Di Roma
  in album: Icon: Franco Corelli
    type: MusicAlbum
    date published: 2009-03-23
  popularity: 5
  genre: classical
  genre: opera
  isrc code: GBAYC9005165
  additional property: CopyrightID
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    type: PropertyValue
    value: registered
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    type: PropertyValue
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  additional property: OTSBitcoinBlock
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  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/GBAYC9005165
  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 0x96a3c8ffe40a65d22265457b08c9a24ba06d77783c7aa60716a28458e9faee19. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9005165 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Verdi: Il trovatore, Act 3 Scene 6: "Ah sì, ben mio, coll'essere … Di quella pira" (Manrico, Leonora, Ruiz, Chorus)
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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      value: -18.34
    additional property: Key Name
      type: PropertyValue
      value: C#
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track: Rigoletto: Act I : Gualtier Malde … Caro nome (Gilda)
  type: MusicRecording
  duration: PT6M53S
  duration ms: 413533
  explicit: false
  by artist: Giuseppe Verdi
  by artist: Anna Moffo
  by artist: Piero de Palma
  by artist: Robert Kerns
  by artist: Mario Rinaudo
  by artist: Coro Del Teatro Dell'Opera Di Roma
  by artist: Orchestra Del Teatro Dell'Opera Di Roma
  by artist: Sir Georg Solti
  in album: Verdi: Rigoletto
    type: MusicAlbum
    date published: 2015-01-01
  popularity: 4
  genre: classical
  genre: opera
  isrc code: ITCC51101705
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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    type: PropertyValue
    value: 2026-07-30T06:15:15+00:00
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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/ITCC51101705
  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 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 0x23d57487b350c438407c2fc4ca95aabf7ed29946652627a42bf1f548b6d69693. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51101705 — a six-check JSON result.
    date published: 2026-07-30T06:39:12Z
  audio: Rigoletto: Act I : Gualtier Malde … Caro nome (Gilda)
    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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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
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    additional property: Energy
    additional property: Speechiness
    additional property: Acousticness
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
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track: Rigoletto: Act I: Gran nuova! (Marullo)
track: Rigoletto: Act I: Ch'io gli parli (Monterone)
track: Rigoletto: Act I: Che m'ami, deh, ripetimi (Duke)
track: Rigoletto: Act II: Duca, Duca! (Tutti)
track: La Bohème, Act I: Sì. Mi chiamano Mimi (Mimi/Rodolfo)
track: Rigoletto: Act II: Mio padre! (Gilda, Rigoletto)

Energy
type: PropertyValue
value: 0.026

Speechiness
type: PropertyValue
value: 0.049

Acousticness
type: PropertyValue
value: 0.957

Instrumentalness
type: PropertyValue
value: 0.002

Liveness
type: PropertyValue
value: 0.068

Valence (Positivity)
type: PropertyValue
value: 0.039

Loudness (dB)
type: PropertyValue
value: -33.004

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Major

Rigoletto: Act I: Gran nuova! (Marullo)
type: MusicRecording
duration: PT2M33S
duration ms: 153533
explicit: false
by artist: Giuseppe Verdi
by artist: Robert Kerns
by artist: Piero de Palma
by artist: Robert Merrill
by artist: Mario Rinaudo
by artist: Alfredo Kraus
by artist: Coro Del Teatro Dell'Opera Di Roma
by artist: Orchestra Del Teatro Dell'Opera Di Roma
by artist: Sir Georg Solti
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2015-01-01
popularity: 3
genre: classical
genre: opera
isrc code: ITCC51101697
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
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51101697
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T19:53:13Z
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 0x8b078a815fd72ff6a4b171b03165bd73f878100b2efb62e0475f35cacf44a8cf. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51101697 — a six-check JSON result.
  date published: 2026-07-31T19:53:13Z
audio: Rigoletto: Act I: Gran nuova! (Marullo)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.078
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.073
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
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Rigoletto: Act I: Ch'io gli parli (Monterone)
type: MusicRecording
duration: PT4M30S
duration ms: 270706
explicit: false
by artist: Giuseppe Verdi
by artist: David Ward
by artist: Alfredo Kraus
by artist: Piero de Palma
by artist: Robert Merrill
by artist: Mario Rinaudo
by artist: Robert Kerns
by artist: Coro Del Teatro Dell'Opera Di Roma
by artist: Orchestra Del Teatro Dell'Opera Di Roma
by artist: Sir Georg Solti
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2015-01-01
popularity: 2
genre: classical
genre: opera
isrc code: ITCC51101698
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T13:54:32+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960418
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51101698
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15Z
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 0x2b2e4c7b2d017650ef39ea5cd2a60459bb57bbbfb85a7d35f1595938712df131. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ITCC51101698 — a six-check JSON result.
  date published: 2026-07-31T15:20:15Z
audio: Rigoletto: Act I: Ch'io gli parli (Monterone)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
    type: PropertyValue
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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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Rigoletto: Act I: Che m'ami, deh, ripetimi (Duke)
type: MusicRecording
duration: PT1M50S
duration ms: 110933
explicit: false
by artist: Giuseppe Verdi
by artist: Anna Moffo
by artist: Anna Di Stasio
by artist: Alfredo Kraus
by artist: Piero de Palma
by artist: Mario Rinaudo
by artist: Orchestra Del Teatro Dell'Opera Di Roma
by artist: Sir Georg Solti
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2015-01-01
popularity: 2
genre: classical
genre: opera
isrc code: ITCC51101704
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T20:06:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x67cedbe904dfd8352c9162ea7580cdfeb2adb46cd13dbae5c9889a28afb78615
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960303
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51101704
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 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 0x67cedbe904dfd8352c9162ea7580cdfeb2adb46cd13dbae5c9889a28afb78615. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51101704 — a six-check JSON result.
  date published: 2026-07-30T20:11:13Z
audio: Rigoletto: Act I: Che m'ami, deh, ripetimi (Duke)
  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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Rigoletto: Act II: Duca, Duca! (Tutti)
type: MusicRecording
duration: PT2M37S
duration ms: 157600
explicit: false
by artist: Giuseppe Verdi
by artist: Alfredo Kraus
by artist: Robert Kerns
by artist: Piero de Palma
by artist: Mario Rinaudo
by artist: Coro Del Teatro Dell'Opera Di Roma
by artist: Orchestra Del Teatro Dell'Opera Di Roma
by artist: Sir Georg Solti
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2015-01-01
popularity: 2
genre: classical
genre: opera
isrc code: ITCC51101709
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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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 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: 2026-07-08T03:22:41Z
audio: Rigoletto: Act II: Duca, Duca! (Tutti)
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La Bohème, Act I: Sì. Mi chiamano Mimi (Mimi/Rodolfo)
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duration: PT4M57S
duration ms: 297880
explicit: false
by artist: Giacomo Puccini
by artist: Antonio Dellaca
by artist: Carlo Badioli
by artist: Coro Del Teatro Dell'Opera Di Roma
by artist: Ferruccio Mazoli
by artist: Gianni Lazzari
by artist: Giuseppe Giuliano
by artist: Mariella Adani
by artist: Mario Basiola
by artist: Mario Rinaudo
by artist: Mario Sereni
by artist: Mirella Freni
by artist: Nicolai Gedda
by artist: Paolo Montarsolo
by artist: Thomas Schippers
by artist: Vittorio Pandano
in album: Gentle Opera
  type: MusicAlbum
  date published: 2016-10-01
popularity: 2
isrc code: GBAYC0701101
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additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xa1cdbf15e81c14df92e7f6d8f046a5a2ac8b53fa24de53848ea8ab0926483a82. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0701101 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: La Bohème, Act I: Sì. Mi chiamano Mimi (Mimi/Rodolfo)
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Rigoletto: Act II: Mio padre! (Gilda, Rigoletto)
type: MusicRecording
duration: PT1M48S
duration ms: 108160
explicit: false
by artist: Giuseppe Verdi
by artist: Anna Moffo
by artist: Robert Merrill
by artist: Piero de Palma
by artist: Robert Kerns
by artist: Mario Rinaudo
by artist: Coro Del Teatro Dell'Opera Di Roma
by artist: Orchestra Del Teatro Dell'Opera Di Roma
by artist: Sir Georg Solti
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2015-01-01
popularity: 1
genre: classical
genre: opera
isrc code: ITCC51101713
additional property: CopyrightID
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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 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 0x95be2762bd81d96bb89522266ada124c1ac76c621d2a0a3eafccb6384183f14a. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITCC51101713 — a six-check JSON result.
  date published: 2026-08-01T00:10:46Z
audio: Rigoletto: Act II: Mio padre! (Gilda, Rigoletto)
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