Barbara Vignudelli
type: MusicGroup
genre: opera
popularity: 11
followers: 209
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSProofURL
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additional property: OTSVerificationAPI
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ac5a9251fbeffc5537c45d42776ff76829d6953ecf0943aaf78138493d158d. Chain 2 (Bitcoin): anchored in block 953687 (2026-06-14T20:19:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/67434c15-d7a7-42fb-8dfc-7c8c423dd36d.json and https://artists.proofprofile.net/proofs/artist/67434c15-d7a7-42fb-8dfc-7c8c423dd36d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T20:19:15Z
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album: Boccherini: Stabat Mater
  type: MusicAlbum
  date published: 2006-09-01
album: Romanze da salotto inedite dell'ottocento
  type: MusicAlbum
  date published: 2023-02-03
album: Romanze da salotto inedite dell'ottocento
  type: MusicAlbum
  date published: 2023-02-03
track: Zazà - Edited Renzo Bianchi (1947 Version) / Act 3: Angioletto, il tuo nome?
track: Turandot / Act 3: "Tu che di gel sei cinta"
track: La Rondine / Act 2: "Bevo al tuo fresco sorriso"
track: La Rondine / Act 1: Ore dulci e divini

Zazà - Edited Renzo Bianchi (1947 Version) / Act 3: Angioletto, il tuo nome?
type: MusicRecording
duration: PT10M31S
duration ms: 631880
explicit: false
by artist: Ruggero Leoncavallo
by artist: Renée Fleming
by artist: Emma Latis
by artist: Barbara Vignudelli
by artist: Orchestra Sinfonica di Milano Giuseppe Verdi
by artist: Marco Armiliato
in album: Verismo
  type: MusicAlbum
  date published: 2009-01-01
genre: italian-opera
genre: italian-romanticism
genre: opera
isrc code: GBBBA0844900
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600e894cf6ea13e65f5cf0765b6738d5e4bbe5381a428e53e87fa6f05efd0818. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0844900.
  date published: 2026-07-08T03:22:41Z
audio: Zazà - Edited Renzo Bianchi (1947 Version) / Act 3: Angioletto, il tuo nome?
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Turandot / Act 3: "Tu che di gel sei cinta"
type: MusicRecording
duration: PT6M47S
duration ms: 407706
explicit: false
by artist: Giacomo Puccini
by artist: Renée Fleming
by artist: Arturo Chacón
by artist: Marco Calabrese
by artist: Barbara Vignudelli
by artist: Coro Sinfonico di Milano Giuseppe Verdi
by artist: Orchestra Sinfonica di Milano Giuseppe Verdi
by artist: Marco Armiliato
in album: Verismo
  type: MusicAlbum
  date published: 2009-01-01
isrc code: GBBBA0844950
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429fb4d5e611173a5902e874bfab8d345a9d534f663db8dcac031994878fc765. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0844950.
  date published: 2026-07-08T03:22:41Z
audio: Turandot / Act 3: "Tu che di gel sei cinta"
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Danceability
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  additional property: Key Name
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La Rondine / Act 2: "Bevo al tuo fresco sorriso"
type: MusicRecording
duration: PT2M59S
duration ms: 179413
explicit: false
by artist: Giacomo Puccini
by artist: Renée Fleming
by artist: Jonas Kaufmann
by artist: Barbara Vignudelli
by artist: Paolo Cautoruccio
by artist: Coro Sinfonico di Milano Giuseppe Verdi
by artist: Orchestra Sinfonica di Milano Giuseppe Verdi
by artist: Marco Armiliato
in album: Verismo
  type: MusicAlbum
  date published: 2009-01-01
isrc code: GBBBA0844970
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286814ba3757710568c6ff1b491ff937bc931babb9bbeff9580f53ac20e9779c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0844970.
  date published: 2026-06-13T13:32:09Z
audio: La Rondine / Act 2: "Bevo al tuo fresco sorriso"
  type: AudioObject
  additional property: Tempo (BPM)
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    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
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
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La Rondine / Act 1: Ore dulci e divini
type: MusicRecording
duration: PT5M48S
duration ms: 348146
explicit: false
by artist: Giacomo Puccini
by artist: Renée Fleming
by artist: Saito Kaoru
by artist: Lucia Mencaroni
by artist: Barbara Vignudelli
by artist: Orchestra Sinfonica di Milano Giuseppe Verdi
by artist: Marco Armiliato
in album: Verismo
  type: MusicAlbum
  date published: 2009-01-01
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6c7df9bdba8e8705ff5e2c74b0455fa42ddea8dededecd89c658dbe3ed9ee7. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0844830.
  date published: 2026-07-31T12:24:41Z
audio: La Rondine / Act 1: Ore dulci e divini
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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    type: PropertyValue
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  additional property: Valence (Positivity)
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isrc code: GBBBA0844830
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/960397
additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch