Eugenia Ratti
type: MusicGroup
genre: opera
description: Eugenia Ratti (5 April 1933 – 14 November 2020)Muere a los 87 años la soprano Eugenia Ratti was an Italian soprano, particularly associated with the Italian repertory. A lyric coloratura soprano of c
popularity: 14
followers: 81
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x35a99b2d2c5015da6fb5503b2d149ff5dab511205ebd5dac574342cc2bf98f39
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953694
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/6b935c36-4ab9-408b-9c8f-3d7965275d2c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6b935c36-4ab9-408b-9c8f-3d7965275d2c.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6b935c36-4ab9-408b-9c8f-3d7965275d2c
additional property: OTSTimestamp
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  value: 2026-06-14T21:38:09Z
additional property: OTSCanonicalRecord
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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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a99b2d2c5015da6fb5503b2d149ff5dab511205ebd5dac574342cc2bf98f39. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b935c36-4ab9-408b-9c8f-3d7965275d2c.json and https://artists.proofprofile.net/proofs/artist/6b935c36-4ab9-408b-9c8f-3d7965275d2c.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T21:38:09Z
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track: Verdi: Un ballo in maschera, Act 1: "S'avanza il Conte" (Oscar, Riccardo)
  type: MusicRecording
  duration: PT1M38S
  duration ms: 98053
  explicit: false
  by artist: Giuseppe Verdi
  by artist: Antonino Votto
  by artist: Eugenia Ratti
  by artist: Giuseppe Di Stefano
  by artist: Orchestra Del Teatro Alla Scala, Milano
  in album: Verdi: Un ballo in maschera
    type: MusicAlbum
    date published: 2022-12-02
  popularity: 3
  genre: classical
  genre: opera
  isrc code: GBAYC1401191
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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    type: PropertyValue
    value: 2026-07-30T14:33:22+00:00
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    value: https://explorer.copyrightchains.com/tx/0x39a92f5ec64d8a8976194bf8ba9bbbba885933cd3b11a8e81cfa155c0bd6c642
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    value: https://blockstream.info/api/block-height/960266
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1401191
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T14:44:50Z
  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 0x39a92f5ec64d8a8976194bf8ba9bbbba885933cd3b11a8e81cfa155c0bd6c642. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GBAYC1401191 — a six-check JSON result.
    date published: 2026-07-30T14:44:50Z
  audio: Verdi: Un ballo in maschera, Act 1: "S'avanza il Conte" (Oscar, Riccardo)
    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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      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
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    additional property: Valence (Positivity)
      type: PropertyValue
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    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.874
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
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track: Verdi: Un ballo in maschera, Act 1: "La rivedrà nell’estasi" (Riccardo, Oscar, Coro, Samuel, Tom)
  type: MusicRecording
  duration: PT1M55S
  duration ms: 115626
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  by artist: Giuseppe Verdi
  by artist: Antonino Votto
  by artist: Coro Del Teatro Alla Scala Di Milano
  by artist: Eugenia Ratti
  by artist: Giuseppe Di Stefano
  by artist: Nicola Zaccaria
  by artist: Silvio Maionica
  by artist: Orchestra Del Teatro Alla Scala, Milano
  in album: Verdi: Un ballo in maschera
    type: MusicAlbum
    date published: 2022-12-02
  popularity: 3
  genre: classical
  genre: opera
  isrc code: GBAYC1401192
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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    value: 2026-07-30T23:10:16+00:00
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  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/GBAYC1401192
  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 0x1b081880bb3db82f5c177c3ddd3cd22b86728f5e97c104de3fd8e9c449a809fd. 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/GBAYC1401192 — a six-check JSON result.
    date published: 2026-07-31T00:26:26Z
  audio: Verdi: Un ballo in maschera, Act 1: "La rivedrà nell’estasi" (Riccardo, Oscar, Coro, Samuel, Tom)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 165.221
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.224
    additional property: Energy
      type: PropertyValue
      value: 0.287
    additional property: Speechiness
    additional property: Acousticness
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name
track: Verdi: Un ballo in maschera, Act 1: "Il primo giudice" (Oscar, Riccardo, Giudice)
track: Verdi: Un ballo in maschera, Act 1: "Volta la terrea" (Oscar, Riccardo, Giudice, Renato, Samuel, Tom, Coro)
track: Verdi: Un ballo in maschera, Act 1: "Ogni cura si doni al diletto" (Riccardo, Renato, Oscar, Samuel, Tom, Coro)
track: Verdi: Un ballo in maschera, Act 1: "Su, profetessa, monta il treppiè" (Coro, Oscar, Riccardo)
track: Verdi: Un ballo in maschera, Act 1: "Chi voi siate, l'audace parola" (Ulrica, Riccardo, Samuel, Oscar, Coro)
track: Verdi: Un ballo in maschera, Act 1: "È scherzo od è follia" (Riccardo, Ulrica, Samuel, Tom, Oscar, Coro)
track: Verdi: Un ballo in maschera, Act 1: "Finisci il vaticinio" (Riccardo, Ulrica, Coro, Samuel, Tom, Silvano, Oscar, Renato)
track: Verdi: Un ballo in maschera, Act 3: "Il messaggio entri" (Renato, Oscar, Amelia, Samuel, Tom)
track: Verdi: Un ballo in maschera, Act 3: "Ah! Di che fulgor, che musiche" (Renato, Oscar, Amelia, Samuel, Tom)
track: Verdi: Un ballo in maschera, Act 3: "Ah! dessa è là" (Riccardo, Oscar)
track: Verdi: Un ballo in maschera, Act 3: "Fervono amori e danze" (Coro, Samuel, Renato, Tom, Oscar)
track: Verdi: Un ballo in maschera, Act 3: "Saper vorreste di che si veste" (Oscar)
track: Verdi: Un ballo in maschera, Act 3: "E tu ricevi il mio!" (Renato, Riccardo, Amelia, Oscar, Coro)

Speechiness
type: PropertyValue
value: 0.041

Acousticness
type: PropertyValue
value: 0.985

Instrumentalness
type: PropertyValue
value: 0.61

Liveness
type: PropertyValue
value: 0.118

Valence (Positivity)
type: PropertyValue
value: 0.449

Loudness (dB)
type: PropertyValue
value: -16.01

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Major

Verdi: Un ballo in maschera, Act 1: "Il primo giudice" (Oscar, Riccardo, Giudice)
type: MusicRecording
duration: PT1M30S
duration ms: 90520
explicit: false
by artist: Giuseppe Verdi
by artist: Antonino Votto
by artist: Eugenia Ratti
by artist: Giuseppe Di Stefano
by artist: Renato Ercolani
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Un ballo in maschera
  type: MusicAlbum
  date published: 2022-12-02
popularity: 3
genre: classical
genre: opera
isrc code: GBAYC1401195
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T11:57:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf8b370797d4c176fba69ccc8bd5ca63751de5cb7accf93849748cfdb8d2cd9ea
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/GBAYC1401195
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 0xf8b370797d4c176fba69ccc8bd5ca63751de5cb7accf93849748cfdb8d2cd9ea. 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/GBAYC1401195 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Verdi: Un ballo in maschera, Act 1: "Il primo giudice" (Oscar, Riccardo, Giudice)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 92.546
  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: 0.535
  additional property: Energy
    type: PropertyValue
    value: 0.205
  additional property: Speechiness
    type: PropertyValue
    value: 0.207
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.352
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.256
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.799
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Un ballo in maschera, Act 1: "Volta la terrea" (Oscar, Riccardo, Giudice, Renato, Samuel, Tom, Coro)
type: MusicRecording
duration: PT2M36S
duration ms: 156893
explicit: false
by artist: Giuseppe Verdi
by artist: Antonino Votto
by artist: Coro Del Teatro Alla Scala Di Milano
by artist: Eugenia Ratti
by artist: Giuseppe Di Stefano
by artist: Nicola Zaccaria
by artist: Renato Ercolani
by artist: Silvio Maionica
by artist: Tito Gobbi
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Un ballo in maschera
  type: MusicAlbum
  date published: 2022-12-02
popularity: 3
genre: classical
genre: opera
isrc code: GBAYC1401196
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:42:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x42177bff9948b034942f6e6ee1e9297fcdd2a4c0dbc4bb54006c0a5313f38b9a
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/GBAYC1401196
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 0x42177bff9948b034942f6e6ee1e9297fcdd2a4c0dbc4bb54006c0a5313f38b9a. 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/GBAYC1401196 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Verdi: Un ballo in maschera, Act 1: "Volta la terrea" (Oscar, Riccardo, Giudice, Renato, Samuel, Tom, Coro)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 91.836
  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: 0.634
  additional property: Energy
    type: PropertyValue
    value: 0.161
  additional property: Speechiness
    type: PropertyValue
    value: 0.101
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.015
  additional property: Liveness
    type: PropertyValue
    value: 0.129
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.447
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.554
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Un ballo in maschera, Act 1: "Ogni cura si doni al diletto" (Riccardo, Renato, Oscar, Samuel, Tom, Coro)
type: MusicRecording
duration: PT2M13S
duration ms: 133720
explicit: false
by artist: Giuseppe Verdi
by artist: Antonino Votto
by artist: Coro Del Teatro Alla Scala Di Milano
by artist: Eugenia Ratti
by artist: Giuseppe Di Stefano
by artist: Nicola Zaccaria
by artist: Silvio Maionica
by artist: Tito Gobbi
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Un ballo in maschera
  type: MusicAlbum
  date published: 2022-12-02
popularity: 3
genre: classical
genre: opera
isrc code: GBAYC1401197
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:17:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4e43714979ac6d40b74b86d21b881a9c9071fd28d89a313946610ddb74ab4b0c
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/GBAYC1401197
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 0x4e43714979ac6d40b74b86d21b881a9c9071fd28d89a313946610ddb74ab4b0c. 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/GBAYC1401197 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Verdi: Un ballo in maschera, Act 1: "Ogni cura si doni al diletto" (Riccardo, Renato, Oscar, Samuel, Tom, Coro)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.428
  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: 0.522
  additional property: Energy
    type: PropertyValue
    value: 0.517
  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.7
  additional property: Liveness
    type: PropertyValue
    value: 0.143
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.738
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.259
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Un ballo in maschera, Act 1: "Su, profetessa, monta il treppiè" (Coro, Oscar, Riccardo)
type: MusicRecording
duration: PT0M56S
duration ms: 56706
explicit: false
by artist: Giuseppe Verdi
by artist: Antonino Votto
by artist: Coro Del Teatro Alla Scala Di Milano
by artist: Eugenia Ratti
by artist: Giuseppe Di Stefano
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Un ballo in maschera
  type: MusicAlbum
  date published: 2022-12-02
popularity: 2
genre: classical
genre: opera
isrc code: GBAYC1401206
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T19:32:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5dc248f7d55ab823fef5e3721dd19910d075f82eab125b3430b32c095d765864
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960455
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960455
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1401206
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 0x5dc248f7d55ab823fef5e3721dd19910d075f82eab125b3430b32c095d765864. 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/GBAYC1401206 — a six-check JSON result.
  date published: 2026-07-31T19:53:13Z
audio: Verdi: Un ballo in maschera, Act 1: "Su, profetessa, monta il treppiè" (Coro, Oscar, Riccardo)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.787
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.586
  additional property: Energy
    type: PropertyValue
    value: 0.082
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.138
  additional property: Liveness
    type: PropertyValue
    value: 0.08
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.387
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.174
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Verdi: Un ballo in maschera, Act 1: "Chi voi siate, l'audace parola" (Ulrica, Riccardo, Samuel, Oscar, Coro)
type: MusicRecording
duration: PT2M32S
duration ms: 152266
explicit: false
by artist: Giuseppe Verdi
by artist: Antonino Votto
by artist: Coro Del Teatro Alla Scala Di Milano
by artist: Eugenia Ratti
by artist: Fedora Barbieri
by artist: Giuseppe Di Stefano
by artist: Silvio Maionica
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Un ballo in maschera
  type: MusicAlbum
  date published: 2022-12-02
popularity: 2
genre: classical
genre: opera
isrc code: GBAYC1401208
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:16:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf84d60233db6a4a15e521ef27db06c4447a5b3038d2b2dc40e8391611fca8786
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/GBAYC1401208
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 0xf84d60233db6a4a15e521ef27db06c4447a5b3038d2b2dc40e8391611fca8786. 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/GBAYC1401208 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Verdi: Un ballo in maschera, Act 1: "Chi voi siate, l'audace parola" (Ulrica, Riccardo, Samuel, Oscar, Coro)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.668
  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: 0.426
  additional property: Energy
    type: PropertyValue
    value: 0.176
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.98
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.318
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.088
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.582
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Un ballo in maschera, Act 1: "È scherzo od è follia" (Riccardo, Ulrica, Samuel, Tom, Oscar, Coro)
type: MusicRecording
duration: PT3M19S
duration ms: 199573
explicit: false
by artist: Giuseppe Verdi
by artist: Antonino Votto
by artist: Coro Del Teatro Alla Scala Di Milano
by artist: Eugenia Ratti
by artist: Fedora Barbieri
by artist: Giuseppe Di Stefano
by artist: Nicola Zaccaria
by artist: Silvio Maionica
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Un ballo in maschera
  type: MusicAlbum
  date published: 2022-12-02
popularity: 2
genre: classical
genre: opera
isrc code: GBAYC1401209
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T08:25:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd1d1b83b4409d470514c7b4bc167437836c64df9db5d29213899d7285be4c4ef
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960229
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960229
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1401209
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T08:30:10Z
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 0xd1d1b83b4409d470514c7b4bc167437836c64df9db5d29213899d7285be4c4ef. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/GBAYC1401209 — a six-check JSON result.
  date published: 2026-07-30T08:30:10Z
audio: Verdi: Un ballo in maschera, Act 1: "È scherzo od è follia" (Riccardo, Ulrica, Samuel, Tom, Oscar, Coro)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.169
  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: 0.314
  additional property: Energy
    type: PropertyValue
    value: 0.295
  additional property: Speechiness
    type: PropertyValue
    value: 0.066
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.166
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.391
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.614
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Un ballo in maschera, Act 1: "Finisci il vaticinio" (Riccardo, Ulrica, Coro, Samuel, Tom, Silvano, Oscar, Renato)
type: MusicRecording
duration: PT4M25S
duration ms: 265893
explicit: false
by artist: Giuseppe Verdi
by artist: Antonino Votto
by artist: Coro Del Teatro Alla Scala Di Milano
by artist: Eugenia Ratti
by artist: Ezio Giordano
by artist: Fedora Barbieri
by artist: Giuseppe Di Stefano
by artist: Nicola Zaccaria
by artist: Silvio Maionica
by artist: Tito Gobbi
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Un ballo in maschera
  type: MusicAlbum
  date published: 2022-12-02
popularity: 2
genre: classical
genre: opera
isrc code: GBAYC1401210
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T20:39:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5276df6e350eaab50cdb6bfdbc590b3f23e785a3a8ac4bf1c49a9b1fcd507480
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960314
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960314
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1401210
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T21:00:46Z
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 0x5276df6e350eaab50cdb6bfdbc590b3f23e785a3a8ac4bf1c49a9b1fcd507480. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/GBAYC1401210 — a six-check JSON result.
  date published: 2026-07-30T21:00:46Z
audio: Verdi: Un ballo in maschera, Act 1: "Finisci il vaticinio" (Riccardo, Ulrica, Coro, Samuel, Tom, Silvano, Oscar, Renato)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.408
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.474
  additional property: Energy
    type: PropertyValue
    value: 0.265
  additional property: Speechiness
    type: PropertyValue
    value: 0.076
  additional property: Acousticness
    type: PropertyValue
    value: 0.98
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.019
  additional property: Liveness
    type: PropertyValue
    value: 0.09
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.259
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.671
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Un ballo in maschera, Act 3: "Il messaggio entri" (Renato, Oscar, Amelia, Samuel, Tom)
type: MusicRecording
duration: PT1M5S
duration ms: 65586
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Eugenia Ratti
by artist: Nicola Zaccaria
by artist: Silvio Maionica
by artist: Tito Gobbi
by artist: Antonino Votto
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Un ballo in maschera
  type: MusicAlbum
  date published: 2022-12-02
popularity: 1
genre: classical
genre: opera
isrc code: GBAYC1401501
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T14:10:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdc0ce4be951fab3a2a55b29615e92a33cd020aad0f26fdba9d41faea0023c446
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960418
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960418
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1401501
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 0xdc0ce4be951fab3a2a55b29615e92a33cd020aad0f26fdba9d41faea0023c446. 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/GBAYC1401501 — a six-check JSON result.
  date published: 2026-07-31T15:20:15Z
audio: Verdi: Un ballo in maschera, Act 3: "Il messaggio entri" (Renato, Oscar, Amelia, Samuel, Tom)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.179
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.588
  additional property: Energy
    type: PropertyValue
    value: 0.069
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.97
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.385
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.413
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.076
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Un ballo in maschera, Act 3: "Ah! Di che fulgor, che musiche" (Renato, Oscar, Amelia, Samuel, Tom)
type: MusicRecording
duration: PT2M44S
duration ms: 164400
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Eugenia Ratti
by artist: Nicola Zaccaria
by artist: Silvio Maionica
by artist: Tito Gobbi
by artist: Antonino Votto
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Un ballo in maschera
  type: MusicAlbum
  date published: 2022-12-02
popularity: 1
genre: classical
genre: opera
isrc code: GBAYC1401502
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T17:04:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x222c9c56d460790e6ab45c5cf037be6e443b2c03be71c16195291299f358be5c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960441
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960441
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1401502
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T17:29:52Z
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 0x222c9c56d460790e6ab45c5cf037be6e443b2c03be71c16195291299f358be5c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBAYC1401502 — a six-check JSON result.
  date published: 2026-07-31T17:29:52Z
audio: Verdi: Un ballo in maschera, Act 3: "Ah! Di che fulgor, che musiche" (Renato, Oscar, Amelia, Samuel, Tom)
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    value: 133.796
  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
    type: PropertyValue
    value: 0.491
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.424
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.36
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
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Verdi: Un ballo in maschera, Act 3: "Ah! dessa è là" (Riccardo, Oscar)
type: MusicRecording
duration: PT1M38S
duration ms: 98306
explicit: false
by artist: Giuseppe Verdi
by artist: Antonino Votto
by artist: Eugenia Ratti
by artist: Giuseppe Di Stefano
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Un ballo in maschera
  type: MusicAlbum
  date published: 2022-12-02
popularity: 1
genre: classical
genre: opera
isrc code: GBAYC1401505
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T22:33:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x08571cde2b20daf6e4e90d4d414c0eb3e55010e165e7c1102cf5b99815de5db8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960478
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960478
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1401505
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:30:38Z
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 0x08571cde2b20daf6e4e90d4d414c0eb3e55010e165e7c1102cf5b99815de5db8. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBAYC1401505 — a six-check JSON result.
  date published: 2026-07-31T23:30:38Z
audio: Verdi: Un ballo in maschera, Act 3: "Ah! dessa è là" (Riccardo, Oscar)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 152.16
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
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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
    type: PropertyValue
    value: 0.975
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.012
  additional property: Liveness
    type: PropertyValue
    value: 0.277
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.318
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.141
  additional property: Key Name
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    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Un ballo in maschera, Act 3: "Fervono amori e danze" (Coro, Samuel, Renato, Tom, Oscar)
type: MusicRecording
duration: PT2M9S
duration ms: 129493
explicit: false
by artist: Giuseppe Verdi
by artist: Antonino Votto
by artist: Coro Del Teatro Alla Scala Di Milano
by artist: Eugenia Ratti
by artist: Nicola Zaccaria
by artist: Silvio Maionica
by artist: Tito Gobbi
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Un ballo in maschera
  type: MusicAlbum
  date published: 2022-12-02
popularity: 1
genre: classical
genre: opera
isrc code: GBAYC1401506
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:28:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6c56a20a3a08efb51c641d61db2be415449ba503f59b886ff392c5410fafa2b9
additional property: OTSHash
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/GBAYC1401506
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 0x6c56a20a3a08efb51c641d61db2be415449ba503f59b886ff392c5410fafa2b9. 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/GBAYC1401506 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Verdi: Un ballo in maschera, Act 3: "Fervono amori e danze" (Coro, Samuel, Renato, Tom, Oscar)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.839
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.581
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.064
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.121
  additional property: Liveness
    type: PropertyValue
    value: 0.155
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.414
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.674
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Verdi: Un ballo in maschera, Act 3: "Saper vorreste di che si veste" (Oscar)
type: MusicRecording
duration: PT2M2S
duration ms: 122013
explicit: false
by artist: Giuseppe Verdi
by artist: Antonino Votto
by artist: Eugenia Ratti
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Un ballo in maschera
  type: MusicAlbum
  date published: 2022-12-02
popularity: 1
genre: classical
genre: opera
isrc code: GBAYC1401507
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T02:31:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbb833af03f6c8c933d5bafcd51336a286fa918a1a7ad556df335f4b921fae877
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960337
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960337
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1401507
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T02:51:48Z
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 0xbb833af03f6c8c933d5bafcd51336a286fa918a1a7ad556df335f4b921fae877. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBAYC1401507 — a six-check JSON result.
  date published: 2026-07-31T02:51:48Z
audio: Verdi: Un ballo in maschera, Act 3: "Saper vorreste di che si veste" (Oscar)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.492
  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: 0.518
  additional property: Energy
    type: PropertyValue
    value: 0.118
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.021
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.195
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.11
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Un ballo in maschera, Act 3: "E tu ricevi il mio!" (Renato, Riccardo, Amelia, Oscar, Coro)
type: MusicRecording
duration: PT1M14S
duration ms: 74693
explicit: false
by artist: Giuseppe Verdi
by artist: Maria Callas
by artist: Coro Del Teatro Alla Scala Di Milano
by artist: Eugenia Ratti
by artist: Giuseppe Di Stefano
by artist: Tito Gobbi
by artist: Antonino Votto
by artist: Orchestra Del Teatro Alla Scala, Milano
in album: Verdi: Un ballo in maschera
  type: MusicAlbum
  date published: 2022-12-02
popularity: 1
genre: classical
genre: opera
isrc code: GBAYC1401510
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T16:52:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x327b2b543edcaf5a2ec6fcc0eb28f6b0f2e9a65e3c73e3531430a07a28ae220f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960441
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960441
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1401510
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T17:29:52Z
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 0x327b2b543edcaf5a2ec6fcc0eb28f6b0f2e9a65e3c73e3531430a07a28ae220f. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBAYC1401510 — a six-check JSON result.
  date published: 2026-07-31T17:29:52Z
audio: Verdi: Un ballo in maschera, Act 3: "E tu ricevi il mio!" (Renato, Riccardo, Amelia, Oscar, Coro)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.142
  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: 0.454
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
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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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