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type: MusicGroup
genre: opera
popularity: 8
followers: 248
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-16T04:55:23Z
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track: Rigoletto: Act II: Povero Rigoletto!
track: Rigoletto / Act 1: Ch'io gli parli (Monterone, Duca, Borsa, Rigoletto, Marullo, Ceprano, Coro)
track: Rigoletto / Act 1: Scena e Coro - Finale I. "Riedo!... perché?" / "Silencio...all'opra" (Rigoletto, Borsa, Ceprano, Marullo)
track: Rigoletto / Act 1: "Questa o quella" - "Partite? ... Crudele" - "In testa che avete, Signor di Ceprano?" - "Gran nuova! Gran nuova!" - "Ah, più di Ceprano"
track: Rigoletto / Act 1: "Gualtier Maldè...Caro nome che il mio cor" - "È là"/"Miratela"

Rigoletto: Act II: Povero Rigoletto!
type: MusicRecording
duration: PT3M39S
duration ms: 219866
explicit: false
by artist: Giuseppe Verdi
by artist: Ettore Bastianini
by artist: Virgilio Carbonari
by artist: Orchestra del Maggio Musicale Fiorentino
by artist: Gianandrea Gavazzeni
in album: Ettore Bastianini: A Discographic Career (Recorded 1955-1962)
  type: MusicAlbum
  date published: 2015-01-01
popularity: 1
genre: classical
genre: opera
isrc code: ITCC51101612
additional property: CopyrightID
additional property: CopyrightStatus
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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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  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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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 0xe931513285086652057fcd890eb4fa82643b225ef62304b5a76f60b24acc9203. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITCC51101612.
  date published: 2026-07-08T08:56:20Z
audio: Rigoletto: Act II: Povero Rigoletto!
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  additional property: Time Signature
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    value: 5
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  additional property: Valence (Positivity)
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  additional property: Key Name
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    value: E
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    type: PropertyValue
    value: Minor

Rigoletto / Act 1: Ch'io gli parli (Monterone, Duca, Borsa, Rigoletto, Marullo, Ceprano, Coro)
type: MusicRecording
duration: PT4M37S
duration ms: 277000
explicit: false
by artist: Giuseppe Verdi
by artist: Lorenzo Testi
by artist: Dietrich Fischer-Dieskau
by artist: Carlo Bergonzi
by artist: Piero de Palma
by artist: Virgilio Carbonari
by artist: Alfredo Giacomotti
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Rafael Kubelík
by artist: Coro Del Teatro Alla Scala Di Milano
by artist: Roberto Benaglio
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: opera
isrc code: DEF056431024
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dba5df811053bbb8b3b13018e4c96d50a53c20209bc4ba78d571914ff28dfe6. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056431024.
  date published: 2026-07-08T03:20:19Z
audio: Rigoletto / Act 1: Ch'io gli parli (Monterone, Duca, Borsa, Rigoletto, Marullo, Ceprano, Coro)
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  additional property: Key Name
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Rigoletto / Act 1: Scena e Coro - Finale I. "Riedo!... perché?" / "Silencio...all'opra" (Rigoletto, Borsa, Ceprano, Marullo)
type: MusicRecording
duration: PT2M21S
duration ms: 141640
explicit: false
by artist: Giuseppe Verdi
by artist: Dietrich Fischer-Dieskau
by artist: Piero de Palma
by artist: Alfredo Giacomotti
by artist: Virgilio Carbonari
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Rafael Kubelík
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: opera
isrc code: DEF056431039
additional property: CopyrightID
additional property: CopyrightStatus
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  value: registered
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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
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3e6d25030f18f04cdda68db9cfb05e4918d72a90ca5f7fc5d12f3bad9e03ef. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056431039.
  date published: 2026-07-08T03:20:19Z
audio: Rigoletto / Act 1: Scena e Coro - Finale I. "Riedo!... perché?" / "Silencio...all'opra" (Rigoletto, Borsa, Ceprano, Marullo)
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  additional property: Tempo (BPM)
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Rigoletto / Act 1: "Questa o quella" - "Partite? ... Crudele" - "In testa che avete, Signor di Ceprano?" - "Gran nuova! Gran nuova!" - "Ah, più di Ceprano"
type: MusicRecording
duration: PT7M3S
duration ms: 423533
explicit: false
by artist: Giuseppe Verdi
by artist: Carlo Bergonzi
by artist: Piero de Palma
by artist: Caterina Alda
by artist: Dietrich Fischer-Dieskau
by artist: Virgilio Carbonari
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Rafael Kubelík
by artist: Coro Del Teatro Alla Scala Di Milano
by artist: Roberto Benaglio
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
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  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209f05e1da1a180231e943848361b4cb3110c068d8e91e5a1dd54cc04f06115c. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEF056431023.
  date published: 2026-07-29T21:09:47Z
audio: Rigoletto / Act 1: "Questa o quella" - "Partite? ... Crudele" - "In testa che avete, Signor di Ceprano?" - "Gran nuova! Gran nuova!" - "Ah, più di Ceprano"
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isrc code: DEF056431023
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Rigoletto / Act 1: "Gualtier Maldè...Caro nome che il mio cor" - "È là"/"Miratela"
type: MusicRecording
duration: PT7M29S
duration ms: 449506
explicit: false
by artist: Giuseppe Verdi
by artist: Renata Scotto
by artist: Piero de Palma
by artist: Alfredo Giacomotti
by artist: Virgilio Carbonari
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Rafael Kubelík
by artist: Coro Del Teatro Alla Scala Di Milano
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-30T05:43:45Z
audio: Rigoletto / Act 1: "Gualtier Maldè...Caro nome che il mio cor" - "È là"/"Miratela"
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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    value: 0.966
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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