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genre: opera
description: thumb|Penno in Ernani at Teatro Verdi Gino Penno (8 December 1920 – 8 February 1998) was an Italian tenor, who enjoyed a short but brilliant career in opera in the 1950s. Penno was born in Felizzano,
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album: Verdi: Aida (Excerpts)
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album: Trovatore
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album: Verdi: Aroldo (Live)
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album: 100 Greatest Tenors, Vol. 3 (Recordings from 1941 to 1960)
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album: Verdi: La forza del destino (Recorded Live 1954)
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album: Cherubini: Medea (1953 - Milan) - Callas Live Remastered
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    subject of: OpenTimestamps Proof of Existence
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  track: Cherubini: Medea, Act III: "E che? Io son Medea!" (Medea, Chorus, Giasone, Neris) [Live]
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album: Verdi Historical Opera Edition, Vol. 6: Simon Boccanegra, Aroldo & Un Ballo in Maschera
album: Il mito dell'opera: Gino Penno
album: Verdi: Attila (Live)
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date published: 2026-07-08T03:22:41Z

Cherubini: Medea, Act I: "Nemici senza cor" (Medea, Giasone) [Live]
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Cherubini: Medea, Act III: "E che? Io son Medea!" (Medea, Chorus, Giasone, Neris) [Live]
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  date published: 2026-07-31T19:53:57Z
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CHERUBINI: MEDEA
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Verdi Historical Opera Edition, Vol. 6: Simon Boccanegra, Aroldo & Un Ballo in Maschera
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Il mito dell'opera: Gino Penno
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Verdi: Attila (Live)
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Ernani
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Operatic Recital By Gino Penno
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Récital (Mono Version)
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Great Tenor Arias (Vol. 1)
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Macbeth
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    date published: 2026-07-30T22:27:30Z
  audio: O figli, o figli miei! (Macbeth)
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Verdi: Macbeth
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    date published: 2026-07-31T15:20:15Z
  audio: Macbeth (1997 - Remaster), Act I Scene 2: Nel di della vittoria io le incontrai...
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 111.588
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.327
    additional property: Energy
      type: PropertyValue
      value: 0.221
    additional property: Speechiness
      type: PropertyValue
      value: 0.15
    additional property: Acousticness
      type: PropertyValue
      value: 0.977
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.002
    additional property: Liveness
      type: PropertyValue
      value: 0.364
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.134
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.855
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Macbeth (1997 - Remaster), Act I Scene 2: Vieni! t'affretta!
  type: MusicRecording
  duration: PT3M3S
  duration ms: 183133
  explicit: false
  by artist: Giuseppe Verdi
  by artist: Maria Callas
  by artist: Vittore Veneziani
  by artist: Orchestra Del Teatro Alla Scala, Milano
  by artist: Victor de Sabata
  by artist: Orchestra Del Teatro Alla Scala Di Milan
  in album: Verdi: Macbeth
    type: MusicAlbum
    date published: 1997-08-30
  genre: classical
  genre: opera
  isrc code: GBAYC9705961
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T15:30:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xab8d126c91a182fdacfaf619a5aab24dfc56d0a117728a0768ea201222cf15f9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9705961
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xab8d126c91a182fdacfaf619a5aab24dfc56d0a117728a0768ea201222cf15f9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9705961 — a six-check JSON result.
    date published: 2026-07-08T03:22:41Z
  audio: Macbeth (1997 - Remaster), Act I Scene 2: Vieni! t'affretta!
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.286
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.337
    additional property: Energy
      type: PropertyValue
      value: 0.257
    additional property: Speechiness
      type: PropertyValue
      value: 0.097
    additional property: Acousticness
      type: PropertyValue
      value: 0.987
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.017
    additional property: Liveness
      type: PropertyValue
      value: 0.659
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.186
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.002
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Macbeth (1997 - Remaster), Act I Scene 2: Or tutti sorgete, ministri infernale
  type: MusicRecording
  duration: PT1M53S
  duration ms: 113000
  explicit: false
  by artist: Giuseppe Verdi
  by artist: Maria Callas
  by artist: Vittore Veneziani
  by artist: Orchestra Del Teatro Alla Scala, Milano
  by artist: Victor de Sabata
  by artist: Orchestra Del Teatro Alla Scala Di Milan
  in album: Verdi: Macbeth
    type: MusicAlbum
    date published: 1997-08-30
  genre: classical
  genre: opera
  isrc code: GBAYC9705963
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Macbeth (1997 - Remaster), Act I Scene 2: Or tutti sorgete, ministri infernale
track: Macbeth (1997 - Remaster), Act II Scene 1: La luce langue
track: Macbeth (1997 - Remaster), Act III Scene 3: Si colmi il calice

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-31T14:35:52+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x63612e5c1f9af903a7c78cf47cd062ef628c6939c9c5877094e00c36b5093314

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 960418

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960418

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9705963

OTSTimestamp
type: PropertyValue
value: 2026-07-31T15:20:15Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63612e5c1f9af903a7c78cf47cd062ef628c6939c9c5877094e00c36b5093314. 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/GBAYC9705963 — a six-check JSON result.
date published: 2026-07-31T15:20:15Z

Macbeth (1997 - Remaster), Act I Scene 2: Or tutti sorgete, ministri infernale
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 121.454
additional property: Musical Key
  type: PropertyValue
  value: 4
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.365
additional property: Energy
  type: PropertyValue
  value: 0.476
additional property: Speechiness
  type: PropertyValue
  value: 0.142
additional property: Acousticness
  type: PropertyValue
  value: 0.983
additional property: Instrumentalness
  type: PropertyValue
  value: 0.842
additional property: Liveness
  type: PropertyValue
  value: 0.691
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.376
additional property: Loudness (dB)
  type: PropertyValue
  value: -13.998
additional property: Key Name
  type: PropertyValue
  value: E
additional property: Mode Name
  type: PropertyValue
  value: Major

Macbeth (1997 - Remaster), Act II Scene 1: La luce langue
type: MusicRecording
duration: PT4M7S
duration ms: 247760
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Vittore Veneziani
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Victor de Sabata
by artist: Orchestra Del Teatro Alla Scala Di Milan
in album: Verdi: Macbeth
  type: MusicAlbum
  date published: 1997-08-30
genre: classical
genre: opera
isrc code: GBAYC9705974
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T11:39:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x619db89b1284078eed26605e8ee184c9ab17ca0d684c29254d4152aadc863260
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/GBAYC9705974
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 0x619db89b1284078eed26605e8ee184c9ab17ca0d684c29254d4152aadc863260. 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/GBAYC9705974 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Macbeth (1997 - Remaster), Act II Scene 1: La luce langue
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.978
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.325
  additional property: Energy
    type: PropertyValue
    value: 0.372
  additional property: Speechiness
    type: PropertyValue
    value: 0.224
  additional property: Acousticness
    type: PropertyValue
    value: 0.971
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.076
  additional property: Liveness
    type: PropertyValue
    value: 0.665
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.23
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.185
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

Macbeth (1997 - Remaster), Act III Scene 3: Si colmi il calice
type: MusicRecording
duration: PT1M28S
duration ms: 88026
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Gino Penno
by artist: Angela Vercelli
by artist: Coro Del Teatro Alla Scala Di Milano
by artist: Vittore Veneziani
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Victor de Sabata
by artist: Orchestra Del Teatro Alla Scala Di Milan
in album: Verdi: Macbeth
  type: MusicAlbum
  date published: 1997-08-30
genre: classical
genre: opera
isrc code: GBAYC9705981
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T09:29:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x947f39916f52690db4ca2d215e00c6ebe2c7348470a89fe92b04b7f2fab360cc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960381
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960381
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9705981
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T09:50:11Z
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 0x947f39916f52690db4ca2d215e00c6ebe2c7348470a89fe92b04b7f2fab360cc. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9705981 — a six-check JSON result.
  date published: 2026-07-31T09:50:11Z
audio: Macbeth (1997 - Remaster), Act III Scene 3: Si colmi il calice
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.823
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.496
  additional property: Energy
    type: PropertyValue
    value: 0.218
  additional property: Speechiness
    type: PropertyValue
    value: 0.081
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.016
  additional property: Liveness
    type: PropertyValue
    value: 0.356
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.507
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.021
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Macbeth (1952 - Milan) - Callas Live Remastered
type: MusicAlbum
date published: 2017-09-15
track: Verdi: Macbeth, Act 1: "Nel dì della vittoria io le incontrai" (Lady Macbeth) [Live]
  type: MusicRecording
  duration: PT2M15S
  duration ms: 135666
  explicit: false
  by artist: Giuseppe Verdi
  by artist: Maria Callas
  by artist: Victor de Sabata
  by artist: Orchestra Del Teatro Alla Scala, Milano
  in album: Verdi: Macbeth (1952 - Milan) - Callas Live Remastered
    type: MusicAlbum
    date published: 2017-09-15
  genre: classical
  genre: opera
  isrc code: GBAYC1701129
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T07:48:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x50ef373edffac216fffd30449343c2d11edf4a7478c709755a9b53431ad12242
  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/GBAYC1701129
  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 0x50ef373edffac216fffd30449343c2d11edf4a7478c709755a9b53431ad12242. 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/GBAYC1701129 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Verdi: Macbeth, Act 1: "Nel dì della vittoria io le incontrai" (Lady Macbeth) [Live]
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 105.682
    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: 0.304
    additional property: Energy
      type: PropertyValue
      value: 0.226
    additional property: Speechiness
      type: PropertyValue
      value: 0.112
    additional property: Acousticness
      type: PropertyValue
      value: 0.979
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.125
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.107
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.817
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Verdi: Macbeth, Act 1: "Vieni! t'affretta!" (Lady Macbeth) [Live]
  type: MusicRecording
  duration: PT3M1S
  duration ms: 181373
  explicit: false
  by artist: Giuseppe Verdi
  by artist: Maria Callas
  by artist: Victor de Sabata
  by artist: Orchestra Del Teatro Alla Scala, Milano
  in album: Verdi: Macbeth (1952 - Milan) - Callas Live Remastered
    type: MusicAlbum
    date published: 2017-09-15
  genre: classical
  genre: opera
  isrc code: GBAYC1701130
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T00:48:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x343983bd7b97542205ab6ff80074a0e1e699dfa522b4c93b3d533ecdd0f7359b
  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/GBAYC1701130
  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 0x343983bd7b97542205ab6ff80074a0e1e699dfa522b4c93b3d533ecdd0f7359b. 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/GBAYC1701130 — a six-check JSON result.
    date published: 2026-07-31T02:19:15Z
  audio: Verdi: Macbeth, Act 1: "Vieni! t'affretta!" (Lady Macbeth) [Live]
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 104.767
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.31
    additional property: Energy
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  subject of: OpenTimestamps Proof of Existence
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track: Verdi: Macbeth, Act 1: "Or tutti sorgete, ministri infernali" (Lady Macbeth) [Live]
track: Verdi: Macbeth, Act 2: "La luce langue" (Lady Macbeth) [Live]
track: Verdi: Macbeth, Act 4: "Una macchia è qui tuttora" (Lady Macbeth, Doctor, Lady) [Live]

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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

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date published: 2026-07-08T03:20:19Z

Verdi: Macbeth, Act 1: "Al cader della sera il re qui giunge" (Servant, Lady Macbeth) [Live]
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Verdi: Macbeth, Act 1: "Or tutti sorgete, ministri infernali" (Lady Macbeth) [Live]
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Verdi: Macbeth, Act 2: "La luce langue" (Lady Macbeth) [Live]
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T18:48:12Z
audio: Verdi: Macbeth, Act 2: "La luce langue" (Lady Macbeth) [Live]
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Verdi: Macbeth, Act 4: "Una macchia è qui tuttora" (Lady Macbeth, Doctor, Lady) [Live]
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genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Callas Fnac Bouquet
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date published: 2007-09-14
track: Les Puritains (1997 Digital Remaster): O rendetemi la speme...Vien, diletto, è in ciel la luna
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  by artist: Coro Del Teatro Alla Scala Di Milano
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  by artist: Tullio Serafin
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  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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Verdi Historical Opera Edition, Vol. 2: I Lombardi, Ernani & I due Foscari
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date published: 2012-04-18

Verdi: Ernani
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date published: 2012-04-28

Verdi Historical Opera Edition, Vol. 3: Giovanna d'Arco, Attila & La Battaglia di Legnano
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date published: 2012-04-18