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type: MusicGroup
genre: opera
popularity: 2
followers: 7
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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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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  date published: 2026-06-16T02:39:16Z
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track: Donizetti: Lucia di Lammermoor, Act 2: "Chi mi frena in tal momento" (Edgardo, Enrico, Lucia, Raimondo, Arturo, Alisa, Coro)
track: Donizetti: Lucia di Lammermoor, Act 2: "T'allontana, sciagurato" - "Rispettate in me di Dio" (Arturo, Enrico, Coro, Raimondo)
track: Donizetti: Lucia di Lammermoor, Act 2: "Esci, fuggi, il furor che mi accende" (Arturo, Enrico, Coro, Raimondo, Lucia, Edgardo, Alisa)
track: Lucia di Lammermoor (1986 Digital Remaster), ATTO TERZO, Scena prima: Spargi d'amaro pianto (Lucia/Raimondo/Coro/Enrico)
track: Donizetti: Lucia di Lammermoor, Act 2: "Dov'è Lucia ?" - "Qui giungere or la vedrem" (Arturo, Enrico, Coro)
track: Donizetti: Lucia di Lammermoor, Act 2: "Piange la madre estinta" (Enrico, Lucia, Arturo, Raimondo)

Donizetti: Lucia di Lammermoor, Act 2: "Chi mi frena in tal momento" (Edgardo, Enrico, Lucia, Raimondo, Arturo, Alisa, Coro)
type: MusicRecording
duration: PT3M35S
duration ms: 215786
explicit: false
by artist: Gaetano Donizetti
by artist: Maria Callas
by artist: Bernard Ladysz
by artist: Ferruccio Tagliavini
by artist: Leonardo Del Ferro
by artist: Margreta Elkins
by artist: Philharmonia Chorus
by artist: Piero Cappuccilli
by artist: Tullio Serafin
by artist: Philharmonia Orchestra
in album: Donizetti: Lucia di Lammermoor (1959 - Serafin) - Callas Remastered
  type: MusicAlbum
  date published: 1960
genre: opera
isrc code: GBAYC1400957
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-07T04:10:26+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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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
additional property: BitcoinBlock
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additional property: BitcoinTime
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  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92294791e506d1208b0a45132c7690de0870755d044faa40ad5cc0e3e1fb111b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBAYC1400957.
  date published: 2026-07-08T03:53:27Z
audio: Donizetti: Lucia di Lammermoor, Act 2: "Chi mi frena in tal momento" (Edgardo, Enrico, Lucia, Raimondo, Arturo, Alisa, Coro)
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Time Signature
    type: PropertyValue
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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
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  additional property: Liveness
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.292
  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Donizetti: Lucia di Lammermoor, Act 2: "T'allontana, sciagurato" - "Rispettate in me di Dio" (Arturo, Enrico, Coro, Raimondo)
type: MusicRecording
duration: PT1M12S
duration ms: 72626
explicit: false
by artist: Gaetano Donizetti
by artist: Tullio Serafin
by artist: Bernard Ladysz
by artist: Leonardo Del Ferro
by artist: Philharmonia Chorus
by artist: Piero Cappuccilli
by artist: Philharmonia Orchestra
in album: Donizetti: Lucia di Lammermoor (1959 - Serafin) - Callas Remastered
  type: MusicAlbum
  date published: 1960
genre: opera
isrc code: GBAYC1400958
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlock
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400958
additional property: OTSTimestamp
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  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
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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 0x77c1b62ab63e666f617227000828b5c34b09728efcb5de9dbe774d4514ff23da. 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/GBAYC1400958.
  date published: 2026-07-08T08:56:20Z
audio: Donizetti: Lucia di Lammermoor, Act 2: "T'allontana, sciagurato" - "Rispettate in me di Dio" (Arturo, Enrico, Coro, Raimondo)
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  additional property: Tempo (BPM)
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  additional property: Danceability
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  additional property: Speechiness
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  additional property: Acousticness
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Donizetti: Lucia di Lammermoor, Act 2: "Esci, fuggi, il furor che mi accende" (Arturo, Enrico, Coro, Raimondo, Lucia, Edgardo, Alisa)
type: MusicRecording
duration: PT1M24S
duration ms: 84213
explicit: false
by artist: Gaetano Donizetti
by artist: Maria Callas
by artist: Bernard Ladysz
by artist: Ferruccio Tagliavini
by artist: Leonardo Del Ferro
by artist: Philharmonia Chorus
by artist: Piero Cappuccilli
by artist: Tullio Serafin
by artist: Philharmonia Orchestra
in album: Donizetti: Lucia di Lammermoor (1959 - Serafin) - Callas Remastered
  type: MusicAlbum
  date published: 1960
genre: opera
isrc code: GBAYC1400960
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400960
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
  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 0x54f8cc275ed3c2e97a89d15174fd4c409d24b2abfac430215256d6c96783e345. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBAYC1400960.
  date published: 2026-07-08T03:39:04Z
audio: Donizetti: Lucia di Lammermoor, Act 2: "Esci, fuggi, il furor che mi accende" (Arturo, Enrico, Coro, Raimondo, Lucia, Edgardo, Alisa)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Lucia di Lammermoor (1986 Digital Remaster), ATTO TERZO, Scena prima: Spargi d'amaro pianto (Lucia/Raimondo/Coro/Enrico)
type: MusicRecording
duration: PT4M6S
duration ms: 246853
explicit: false
by artist: Ferruccio Tagliavini
by artist: Philharmonia Chorus
by artist: Piero Cappuccilli
by artist: Philharmonia Orchestra
by artist: Bernard Ladysz
by artist: Tullio Serafin
by artist: Leonardo Del Ferro
by artist: Maria Callas
by artist: Margreta Elkins
in album: Maria Callas - The Platinum Collection 1
  type: MusicAlbum
  date published: 2006-03-13
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1f4d015a7136ab5fd58d10a96c42ed6d9167986f91e2486fe96e273c6e43a2. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600972.
  date published: 2026-07-31T18:48:12Z
audio: Lucia di Lammermoor (1986 Digital Remaster), ATTO TERZO, Scena prima: Spargi d'amaro pianto (Lucia/Raimondo/Coro/Enrico)
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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)
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  additional property: Time Signature
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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isrc code: GBAYC8600972
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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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

Donizetti: Lucia di Lammermoor, Act 2: "Dov'è Lucia ?" - "Qui giungere or la vedrem" (Arturo, Enrico, Coro)
type: MusicRecording
duration: PT1M42S
duration ms: 102253
explicit: false
by artist: Gaetano Donizetti
by artist: Tullio Serafin
by artist: Leonardo Del Ferro
by artist: Philharmonia Chorus
by artist: Piero Cappuccilli
by artist: Philharmonia Orchestra
in album: Donizetti: Lucia di Lammermoor (1959 - Serafin) - Callas Remastered
  type: MusicAlbum
  date published: 1960
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b6be677c729a1ffffc6ce7dbe02403cb6722ce84369507eb476dbc7ead021f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400955.
  date published: 2026-07-31T23:30:38Z
audio: Donizetti: Lucia di Lammermoor, Act 2: "Dov'è Lucia ?" - "Qui giungere or la vedrem" (Arturo, Enrico, Coro)
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  additional property: Tempo (BPM)
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  additional property: Mode (Major/Minor)
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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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  additional property: Instrumentalness
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isrc code: GBAYC1400955
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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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

Donizetti: Lucia di Lammermoor, Act 2: "Piange la madre estinta" (Enrico, Lucia, Arturo, Raimondo)
type: MusicRecording
duration: PT2M20S
duration ms: 140413
explicit: false
by artist: Gaetano Donizetti
by artist: Maria Callas
by artist: Bernard Ladysz
by artist: Leonardo Del Ferro
by artist: Piero Cappuccilli
by artist: Tullio Serafin
by artist: Philharmonia Orchestra
in album: Donizetti: Lucia di Lammermoor (1959 - Serafin) - Callas Remastered
  type: MusicAlbum
  date published: 1960
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f937abe153378f23555e4bb0b948e396aa606ee45ab09576aac17356bca0de0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400956.
  date published: 2026-07-31T23:30:38Z
audio: Donizetti: Lucia di Lammermoor, Act 2: "Piange la madre estinta" (Enrico, Lucia, Arturo, Raimondo)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.49
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.263
  additional property: Energy
    type: PropertyValue
    value: 0.191
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.972
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.018
  additional property: Liveness
    type: PropertyValue
    value: 0.301
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.65
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: GBAYC1400956
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960478
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T23:30:38+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1400956
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: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:30:38+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 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