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genre: opera
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followers: 120
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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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 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
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  date published: 2026-06-14T16:43:25Z
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album: Smetana: Bartered Bride (The Beecham Collection)
  type: MusicAlbum
  date published: 2014-02-01
album: Bellini: La sonnambula
  type: MusicAlbum
  date published: 2015-03-01
album: Donizetti: Lucia di Lammermoor
  type: MusicAlbum
  date published: 2015-01-01
album: Vocal Recital: Schwarzkopf, Elisabeth - Verdi, G. / Loewe, C. / Weber, C.M. Von / Mozart, W.A. / Bach, J.S. / Handel, G.F. / Beethoven, L. Van
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album: Cherubini: Medea (1959)
  type: MusicAlbum
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album: Walton, Troilus and Cressida First Performance
  type: MusicAlbum
  date published: 2014-01-01
album: Walton: Facade - Jacob: Mam'Zelle Angot
  type: MusicAlbum
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album: Italian Operatic Arias
  type: MusicAlbum
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album: Verdi: La traviata
  type: MusicAlbum
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album: Strauss: Der Rosenkavalier
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    by artist: Geraint Evans
    by artist: Joseph Rouleau
    by artist: Josef Gostic
    by artist: Regina Resnik
    by artist: Otakar Kraus
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    by artist: David Tree
    by artist: Edith Coates
    by artist: Duncan Robertson
    by artist: Forbes Robinson
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    by artist: Rhoderick Davies
    by artist: Ronald Lewis
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    by artist: Orchestra of the Royal Opera House, Covent Garden
    by artist: Rafael Kubelík
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      date published: 2015-02-01
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    genre: late-romantic-era
    genre: early-modern-classical
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    additional property: OTSTimestamp
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    additional property: OTSVerifyInstructions
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-31T04:14:58Z
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    by artist: Maria Callas
    by artist: Cesare Valletti
    by artist: Mario Zanasi
    by artist: Marie Collier
    by artist: Lea Roberts
    by artist: Dermot Troy
    by artist: Forbes Robinson
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    by artist: Orchestra of the Royal Opera House, Covent Garden
    by artist: Nicola Rescigno
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    genre: opera
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    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
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album: Puccini: Tosca (1961)
album: Maria Callas Sings Casta Diva
album: Bellini: Norma
album: Singers of the Century: Joan Sutherland – The Art of Coloratura (Remastered 2016)
album: Mozart: Cosi fan tutte
album: Wagner, R.: Tristan Und Isolde (Melchior, Flagstad, Reiner) (1936)
album: Richard Wagner, Vol. 2 (1951-1952)
album: Oscar Natzka: Great Recordings 1939-50
album: Wagner, R.: Tristan Und Isolde (Furtwängler) (1952)
album: Wagner, R.: Walkure (Die) / Gotterdammerung (Excerpts) (Furtwangler) (1937)
album: Delius: Orchestral Works, Vol. 3
album: Delius: Orchestral Works, Vol. 3 (Beecham) (1928, 1938)
album: Wagner: Der fliegende Holländer, WWV 63 [Recorded 1960]
album: Beethoven, L. Van: Fidelio [Opera] (1947)

Dermot Troy
type: MusicGroup

Forbes Robinson
type: MusicGroup

Royal Opera House Chorus, Covent Garden
type: MusicGroup

Orchestra of the Royal Opera House, Covent Garden
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Nicola Rescigno
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Verdi, G.: Traviata (La) [Opera] (Callas) (1958)
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date published: 1958

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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1007280

OTSTimestamp
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value: 2026-07-08T03:20:19Z

OTSVerifyInstructions
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value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d1d53ff9d25b1f3085a541a91c5d7ec07be5dc7ed083bababc4c628e8bf7fb. 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/USB8U1007280 — a six-check JSON result.
date published: 2026-07-08T03:20:19Z

La traviata*: Act I: Sempre libera (Violetta)
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additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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Puccini: Tosca (1961)
type: MusicAlbum
date published: 2015-01-01

Maria Callas Sings Casta Diva
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date published: 2012-08-07
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  by artist: RAI Chorus, Turin
  by artist: RAI Symphony Orchestra, Turin
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    type: MusicAlbum
    date published: 2012-08-07
  genre: opera
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  additional property: OTSVerificationAPI
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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
  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 0xc0c2fd35a53f6ae87a2baf5b2691855ca7729afb719615732f9c9aa675210f2c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITX921000745 — a six-check JSON result.
    date published: 2026-07-31T12:24:41Z
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  by artist: Milan La Scala Chorus
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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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-08-01T04:30:37Z
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Bellini: Norma
type: MusicAlbum
date published: 2015-02-01

Singers of the Century: Joan Sutherland – The Art of Coloratura (Remastered 2016)
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date published: 2016-08-26

Mozart: Cosi fan tutte
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date published: 2011-03-01
track: Così fan tutte, K. 588: Overture
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  by artist: Stuart Burrows
  by artist: Thomas Allen
  by artist: Richard van Allan
  by artist: Kiri Te Kanawa
  by artist: Agnes Baltsa
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  by artist: Daniela Mazzuccato
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  genre: classical-era
  genre: classical-piano
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  genre: chamber-music
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  subject of: OpenTimestamps Proof of Existence
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track: Così fan tutte, K. 588: Act I Scene 2: Recitative: Che silenzio! (Don Alfonso, Despina)
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  subject of: OpenTimestamps Proof of Existence
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track: Così fan tutte, K. 588: Act II Scene 2: Recitative: Barbara, perche fuggi? (Ferrando, Fiordiligi)
track: Così fan tutte, K. 588: Act I Scene 1: Terzetto: La mia Dorabella capace non e (Ferrando, Guglielmo, Don Alfonso)
track: Così fan tutte, K. 588: Act II Scene 2: Recitative: Ei parte … senti … ah no! (Fiordiligi, Ferrando, Guglielmo)
track: Così fan tutte, K. 588: Act I Scene 1: Terzetto: E la fede delle femmine (Don Alfonso, Ferrando, Guglielmo)
track: Così fan tutte, K. 588: Act I Scene 2: Recitative: Temerari! Sortite fuori di questo loco! (Fiordiligi, Ferrando, Guglielmo, Don Alfonso, Dorabella)
track: Così fan tutte, K. 588: Act I Scene 2: Terzet: Una bella serenata (Ferrando, Guglielmo, Don Alfonso)
track: Così fan tutte, K. 588: Act I Scene 2: Aria: Non siate ritrosi (Guglielmo)
track: Così fan tutte, K. 588: Act II Scene 2: Aria: Donne mie la fate a tanti a tanti (Guglielmo)
track: Così fan tutte, K. 588: Act I Scene 2: Duetto: Ah guarda, sorella (Fiordiligi, Dorabella)
track: Così fan tutte, K. 588: Act I Scene 2: Terzet: E voi ridete? (Don Alfonso, Ferrando, Guglielmo)
track: Così fan tutte, K. 588: Act II Scene 2: Recitative: In qual fiero contrasto (Ferrando, Don Alfonso, Guglielmo)
track: Così fan tutte, K. 588: Act I Scene 2: Aria: Vorrei dir, e cor non ho (Don Alfonso, Fiordiligi)
track: Così fan tutte, K. 588: Act I Scene 2: Aria: Un'aura amorosa (Ferrando, Don Alfonso, Despina)
track: Così fan tutte, K. 588: Act I Scene 2: Quintet: Sento, oddio, che questo piede (Guglielmo, Ferrando, Don Alfonso, Fiordiligi, Dorabella)
track: Così fan tutte, K. 588: Act I Scene 3: Finale: Ah, che tutta in un momento (Fiordiligi, Dorabella)
track: Così fan tutte, K. 588: Act II Scene 3: Aria: E amore un ladroncello (Dorabella, Fiordiligi, Despina, Don Alfonso)
track: Così fan tutte, K. 588: Act I Scene 3: Si mora, si, si mora (Ferrando, Guglielmo, Don Alfonso, Fiordiligi, Dorabella, Despina)
track: Così fan tutte, K. 588: Act II Scene 3: Duet: Fra gli amplessi (Fiordiligi, Ferrando, Guglielmo, Don Alfonso)
track: Così fan tutte, K. 588: Act I Scene 2: Bella vita militar! (Don Alfonso, Fiordiligi, Dorabella, Ferrando, Guglielmo, chorus)
track: Così fan tutte, K. 588: Act I Scene 3: Eccovi il medico (Don Alfonso, Ferrando, Guglielmo, Fiordiligi, Dorabella, Despina)
track: Così fan tutte, K. 588: Act I Scene 2: Quintet: Di scrivermi ogni giorno (Fiordiligi, Dorabella, Guglielmo, Ferrando, Don Alfonso)
track: Così fan tutte, K. 588: Act I Scene 3: Dammi un bacio, o mio tesoro (Guglielmo, Ferrando, Fiordiligi, Dorabella, Despina, Don Alfonso)
track: Così fan tutte, K. 588: Act I Scene 2: Terzet: Soave sia il vento (Don Alfonso, Fiordiligi, Dorabella)
track: Così fan tutte, K. 588: Act II Scene 1: Recitative: Andante la, che siete due bizzarre ragazze! (Despina, Fiordiligi, Dorabella)
track: Così fan tutte, K. 588: Act II Scene 4: Benedetti i doppi conjugi (Fiordiligi, Dorabella, Ferrando, Guglielmo, chorus)
track: Così fan tutte, K. 588: Act I Scene 2: Che vita maledetta (Despina, Fiordiligi)
track: Così fan tutte, K. 588: Act II Scene 1: Aria: Una donna a quindici anni (Despina, Fiordiligi, Dorabella)
track: Così fan tutte, K. 588: Act II Scene 4: Miei Signori, tutto e fatto (Don Alfonso, Fiordiligi, Dorabella, Ferrando, Guglielmo, Despina, chorus)
track: Così fan tutte, K. 588: Act I Scene 2: Recitative: Ah scostati! Paventa il tristo effetto d'un disperato affetto! (Dorabella, Despina, Fiordiligi)
track: Così fan tutte, K. 588: Act II Scene 2: Duetto: Prendero quel brunettino (Dorabella, Fiordiligi, Don Alfonso)
track: Così fan tutte, K. 588: Act I Scene 2: In uomini, in soldati sperare fedeita? (Despina)
track: Così fan tutte, K. 588: Act II Scene 2: Duet: Secondate, aurette amiche (Ferrando, Guglielmo, Don Alfonso, Fiordiligi, Dorabella, chorus)
track: Così fan tutte, K. 588: Act II Scene 2: Quartet: La mano a me date (Don Alfonso, Ferrando, Guglielmo, Despina)
track: Così fan tutte, K. 588: Act II Scene 2: Duet: Il core vi dono (Guglielmo, Dorabella)

Così fan tutte, K. 588: Act II Scene 2: Recitative: Barbara, perche fuggi? (Ferrando, Fiordiligi)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T17:29:52Z
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Così fan tutte, K. 588: Act I Scene 1: Terzetto: La mia Dorabella capace non e (Ferrando, Guglielmo, Don Alfonso)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T01:32:48Z
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Così fan tutte, K. 588: Act II Scene 2: Recitative: Ei parte … senti … ah no! (Fiordiligi, Ferrando, Guglielmo)
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Così fan tutte, K. 588: Act I Scene 1: Terzetto: E la fede delle femmine (Don Alfonso, Ferrando, Guglielmo)
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  value: 2026-07-07T03:03:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0672bc4cc800e41c9b7e720ade1f2f3a82272178cbbf03c5589b6a0e5000d540
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/GB6CE1000005
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 0x0672bc4cc800e41c9b7e720ade1f2f3a82272178cbbf03c5589b6a0e5000d540. 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/GB6CE1000005 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Così fan tutte, K. 588: Act I Scene 1: Terzetto: E la fede delle femmine (Don Alfonso, Ferrando, Guglielmo)
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  additional property: Tempo (BPM)
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    value: 119.378
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.506
  additional property: Energy
    type: PropertyValue
    value: 0.266
  additional property: Speechiness
    type: PropertyValue
    value: 0.501
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.467
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.478
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.864
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Così fan tutte, K. 588: Act I Scene 2: Recitative: Temerari! Sortite fuori di questo loco! (Fiordiligi, Ferrando, Guglielmo, Don Alfonso, Dorabella)
type: MusicRecording
duration: PT6M57S
duration ms: 417653
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000020
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T01:13:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x756f1ec1a980777c5e02a71328fecb5a5c78433df439004a071687ae8e2036f0
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/GB6CE1000020
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 0x756f1ec1a980777c5e02a71328fecb5a5c78433df439004a071687ae8e2036f0. 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/GB6CE1000020 — a six-check JSON result.
  date published: 2026-07-31T02:51:48Z
audio: Così fan tutte, K. 588: Act I Scene 2: Recitative: Temerari! Sortite fuori di questo loco! (Fiordiligi, Ferrando, Guglielmo, Don Alfonso, Dorabella)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 169.471
  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: 0.299
  additional property: Energy
    type: PropertyValue
    value: 0.241
  additional property: Speechiness
    type: PropertyValue
    value: 0.136
  additional property: Acousticness
    type: PropertyValue
    value: 0.97
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.283
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.197
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.205
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Così fan tutte, K. 588: Act I Scene 2: Terzet: Una bella serenata (Ferrando, Guglielmo, Don Alfonso)
type: MusicRecording
duration: PT2M34S
duration ms: 154920
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000006
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T01:32:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x17d93d2b6539801f8fa6dd99451bcc024832b98d70c1f45457dc96686c3095ec
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960187
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960187
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000006
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T01:34:28Z
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 0x17d93d2b6539801f8fa6dd99451bcc024832b98d70c1f45457dc96686c3095ec. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/GB6CE1000006 — a six-check JSON result.
  date published: 2026-07-30T01:34:28Z
audio: Così fan tutte, K. 588: Act I Scene 2: Terzet: Una bella serenata (Ferrando, Guglielmo, Don Alfonso)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.742
  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: 0.398
  additional property: Energy
    type: PropertyValue
    value: 0.338
  additional property: Speechiness
    type: PropertyValue
    value: 0.157
  additional property: Acousticness
    type: PropertyValue
    value: 0.904
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.035
  additional property: Liveness
    type: PropertyValue
    value: 0.822
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.6
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.636
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Così fan tutte, K. 588: Act I Scene 2: Aria: Non siate ritrosi (Guglielmo)
type: MusicRecording
duration: PT1M44S
duration ms: 104933
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000021
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:09:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x92d6808fffd46a8db5df3981d8032630b34746197870e40200e9a0eeb517c46c
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/GB6CE1000021
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 0x92d6808fffd46a8db5df3981d8032630b34746197870e40200e9a0eeb517c46c. 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/GB6CE1000021 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Così fan tutte, K. 588: Act I Scene 2: Aria: Non siate ritrosi (Guglielmo)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.449
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.407
  additional property: Energy
    type: PropertyValue
    value: 0.194
  additional property: Speechiness
    type: PropertyValue
    value: 0.057
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.608
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.72
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.36
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Così fan tutte, K. 588: Act II Scene 2: Aria: Donne mie la fate a tanti a tanti (Guglielmo)
type: MusicRecording
duration: PT3M21S
duration ms: 201573
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000038
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T02:59:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4601d57ff970f51145d039bb45605cd3f02a1b12c3004231cb523c7594fd5294
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960340
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960340
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000038
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T03:15:04Z
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 0x4601d57ff970f51145d039bb45605cd3f02a1b12c3004231cb523c7594fd5294. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000038 — a six-check JSON result.
  date published: 2026-07-31T03:15:04Z
audio: Così fan tutte, K. 588: Act II Scene 2: Aria: Donne mie la fate a tanti a tanti (Guglielmo)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.567
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.543
  additional property: Energy
    type: PropertyValue
    value: 0.189
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.009
  additional property: Liveness
    type: PropertyValue
    value: 0.705
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.768
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.114
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Così fan tutte, K. 588: Act I Scene 2: Duetto: Ah guarda, sorella (Fiordiligi, Dorabella)
type: MusicRecording
duration: PT5M49S
duration ms: 349666
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000007
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T20:58:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6d0726cc7e736de77eabc3d76aea06a0c52b9b492b46faf38ed2a03d8d1d30fd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960144
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960144
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000007
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T21:09:47Z
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 0x6d0726cc7e736de77eabc3d76aea06a0c52b9b492b46faf38ed2a03d8d1d30fd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000007 — a six-check JSON result.
  date published: 2026-07-29T21:09:47Z
audio: Così fan tutte, K. 588: Act I Scene 2: Duetto: Ah guarda, sorella (Fiordiligi, Dorabella)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.307
  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: 0.285
  additional property: Energy
    type: PropertyValue
    value: 0.119
  additional property: Speechiness
    type: PropertyValue
    value: 0.091
  additional property: Acousticness
    type: PropertyValue
    value: 0.972
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.578
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.168
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.879
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Così fan tutte, K. 588: Act I Scene 2: Terzet: E voi ridete? (Don Alfonso, Ferrando, Guglielmo)
type: MusicRecording
duration: PT1M36S
duration ms: 96360
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000022
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T09:13:41+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x9d685b0357bb2be37fac90757433140605411fdb98138ef9d4330f89c7407f45
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960379
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960379
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000022
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T09:25:34Z
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 0x9d685b0357bb2be37fac90757433140605411fdb98138ef9d4330f89c7407f45. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/GB6CE1000022 — a six-check JSON result.
  date published: 2026-07-31T09:25:34Z
audio: Così fan tutte, K. 588: Act I Scene 2: Terzet: E voi ridete? (Don Alfonso, Ferrando, Guglielmo)
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  additional property: Musical Key
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    type: PropertyValue
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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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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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Così fan tutte, K. 588: Act II Scene 2: Recitative: In qual fiero contrasto (Ferrando, Don Alfonso, Guglielmo)
type: MusicRecording
duration: PT5M1S
duration ms: 301693
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000039
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T10:30:22+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x81287bcab0a67a7b4f320d4dc4c5be1e3776d7fe4fbaf8b4e5c64d00f98614d3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000039
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81287bcab0a67a7b4f320d4dc4c5be1e3776d7fe4fbaf8b4e5c64d00f98614d3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000039 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: Così fan tutte, K. 588: Act II Scene 2: Recitative: In qual fiero contrasto (Ferrando, Don Alfonso, Guglielmo)
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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
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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
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.879
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.374
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.249
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
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Così fan tutte, K. 588: Act I Scene 2: Aria: Vorrei dir, e cor non ho (Don Alfonso, Fiordiligi)
type: MusicRecording
duration: PT1M46S
duration ms: 106800
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000008
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T23:39:49+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xe5db975b04fc1bca7c8a01de39cc89f6c89cb489445d0e2256892e88da66e35a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960327
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/GB6CE1000008
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 0xe5db975b04fc1bca7c8a01de39cc89f6c89cb489445d0e2256892e88da66e35a. 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/GB6CE1000008 — a six-check JSON result.
  date published: 2026-07-31T00:26:26Z
audio: Così fan tutte, K. 588: Act I Scene 2: Aria: Vorrei dir, e cor non ho (Don Alfonso, Fiordiligi)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.344
  additional property: Acousticness
    type: PropertyValue
    value: 0.974
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.632
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.447
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.541
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Così fan tutte, K. 588: Act I Scene 2: Aria: Un'aura amorosa (Ferrando, Don Alfonso, Despina)
type: MusicRecording
duration: PT4M49S
duration ms: 289453
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000023
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T13:38:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd06d49dc591113621e8e0ce27ac01e8c3b121443e0db1d8459b37e9942d12823
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960264
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960264
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000023
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:36:16Z
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 0xd06d49dc591113621e8e0ce27ac01e8c3b121443e0db1d8459b37e9942d12823. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GB6CE1000023 — a six-check JSON result.
  date published: 2026-07-30T14:36:16Z
audio: Così fan tutte, K. 588: Act I Scene 2: Aria: Un'aura amorosa (Ferrando, Don Alfonso, Despina)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.966
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.288
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.058
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.041
  additional property: Liveness
    type: PropertyValue
    value: 0.699
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.188
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.956
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
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Così fan tutte, K. 588: Act I Scene 2: Quintet: Sento, oddio, che questo piede (Guglielmo, Ferrando, Don Alfonso, Fiordiligi, Dorabella)
type: MusicRecording
duration: PT4M59S
duration ms: 299333
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000009
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T07:07:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa04ec9be957fcf63d0dddf32c43af557b6e768270373a656232fbf1a7617d459
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/GB6CE1000009
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 0xa04ec9be957fcf63d0dddf32c43af557b6e768270373a656232fbf1a7617d459. 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/GB6CE1000009 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Così fan tutte, K. 588: Act I Scene 2: Quintet: Sento, oddio, che questo piede (Guglielmo, Ferrando, Don Alfonso, Fiordiligi, Dorabella)
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  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.285
  additional property: Energy
    type: PropertyValue
    value: 0.155
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.975
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.117
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.235
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.919
  additional property: Key Name
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  additional property: Mode Name
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Così fan tutte, K. 588: Act I Scene 3: Finale: Ah, che tutta in un momento (Fiordiligi, Dorabella)
type: MusicRecording
duration: PT3M14S
duration ms: 194373
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000024
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:30:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcbe4f3b5930566992b355580dcedd23e33364a86fc86d45dcc179177777b19d9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957122
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957122
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000024
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:39:04Z
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 0xcbe4f3b5930566992b355580dcedd23e33364a86fc86d45dcc179177777b19d9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000024 — a six-check JSON result.
  date published: 2026-07-08T03:39:04Z
audio: Così fan tutte, K. 588: Act I Scene 3: Finale: Ah, che tutta in un momento (Fiordiligi, Dorabella)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.108
  additional property: Musical Key
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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
    type: PropertyValue
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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
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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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Così fan tutte, K. 588: Act II Scene 3: Aria: E amore un ladroncello (Dorabella, Fiordiligi, Despina, Don Alfonso)
type: MusicRecording
duration: PT5M12S
duration ms: 312520
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000041
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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  value: 2026-07-07T20:05:27+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000041
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa60676d832932ccefb5530efadc848594df0efd1a4871bad2f01d652f4fd62. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000041 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Così fan tutte, K. 588: Act II Scene 3: Aria: E amore un ladroncello (Dorabella, Fiordiligi, Despina, Don Alfonso)
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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)
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  additional property: Loudness (dB)
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Così fan tutte, K. 588: Act I Scene 3: Si mora, si, si mora (Ferrando, Guglielmo, Don Alfonso, Fiordiligi, Dorabella, Despina)
type: MusicRecording
duration: PT5M16S
duration ms: 316306
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000025
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
  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/GB6CE1000025
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357f01197ae432d25561c7b1c548127d1ccdc7306901529b566eb191292e221c. 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/GB6CE1000025 — a six-check JSON result.
  date published: 2026-07-31T00:26:26Z
audio: Così fan tutte, K. 588: Act I Scene 3: Si mora, si, si mora (Ferrando, Guglielmo, Don Alfonso, Fiordiligi, Dorabella, Despina)
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Così fan tutte, K. 588: Act II Scene 3: Duet: Fra gli amplessi (Fiordiligi, Ferrando, Guglielmo, Don Alfonso)
type: MusicRecording
duration: PT8M22S
duration ms: 502226
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000042
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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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/GB6CE1000042
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe731ca209aab36d46d0857908368f38a184658abafa7c81c4a851628e31a819a. 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/GB6CE1000042 — a six-check JSON result.
  date published: 2026-07-31T15:20:15Z
audio: Così fan tutte, K. 588: Act II Scene 3: Duet: Fra gli amplessi (Fiordiligi, Ferrando, Guglielmo, Don Alfonso)
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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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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Così fan tutte, K. 588: Act I Scene 2: Bella vita militar! (Don Alfonso, Fiordiligi, Dorabella, Ferrando, Guglielmo, chorus)
type: MusicRecording
duration: PT2M10S
duration ms: 130786
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000011
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T10:18:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x14b7464ec9322e1222fd46cffb13327502e7ae4e0798ba06f3d166d6d48e9852
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000011
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b7464ec9322e1222fd46cffb13327502e7ae4e0798ba06f3d166d6d48e9852. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000011 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: Così fan tutte, K. 588: Act I Scene 2: Bella vita militar! (Don Alfonso, Fiordiligi, Dorabella, Ferrando, Guglielmo, chorus)
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  additional property: Musical Key
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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: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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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
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  additional property: Mode Name
    type: PropertyValue
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Così fan tutte, K. 588: Act I Scene 3: Eccovi il medico (Don Alfonso, Ferrando, Guglielmo, Fiordiligi, Dorabella, Despina)
type: MusicRecording
duration: PT5M45S
duration ms: 345866
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000026
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T09:13:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd8046c72828f0684ff34e80a423997e55e66cc1bf9bd3430ebc9a767923ccfad
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960240
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960240
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000026
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T09:57:33Z
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 0xd8046c72828f0684ff34e80a423997e55e66cc1bf9bd3430ebc9a767923ccfad. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/GB6CE1000026 — a six-check JSON result.
  date published: 2026-07-30T09:57:33Z
audio: Così fan tutte, K. 588: Act I Scene 3: Eccovi il medico (Don Alfonso, Ferrando, Guglielmo, Fiordiligi, Dorabella, Despina)
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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
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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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  additional property: Liveness
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  additional property: Valence (Positivity)
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Così fan tutte, K. 588: Act I Scene 2: Quintet: Di scrivermi ogni giorno (Fiordiligi, Dorabella, Guglielmo, Ferrando, Don Alfonso)
type: MusicRecording
duration: PT3M40S
duration ms: 220280
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000012
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T10:05:15+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x7b71f3e324604e16b0ec7f03006a79b462467a859d693f48673c7aa115a44936
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960247
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000012
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T10:42:33Z
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 0x7b71f3e324604e16b0ec7f03006a79b462467a859d693f48673c7aa115a44936. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/GB6CE1000012 — a six-check JSON result.
  date published: 2026-07-30T10:42:33Z
audio: Così fan tutte, K. 588: Act I Scene 2: Quintet: Di scrivermi ogni giorno (Fiordiligi, Dorabella, Guglielmo, Ferrando, Don Alfonso)
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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
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Instrumentalness
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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)
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Così fan tutte, K. 588: Act I Scene 3: Dammi un bacio, o mio tesoro (Guglielmo, Ferrando, Fiordiligi, Dorabella, Despina, Don Alfonso)
type: MusicRecording
duration: PT3M34S
duration ms: 214053
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
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additional property: OTSVerificationAPI
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T21:35:24Z
audio: Così fan tutte, K. 588: Act I Scene 3: Dammi un bacio, o mio tesoro (Guglielmo, Ferrando, Fiordiligi, Dorabella, Despina, Don Alfonso)
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Così fan tutte, K. 588: Act I Scene 2: Terzet: Soave sia il vento (Don Alfonso, Fiordiligi, Dorabella)
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by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
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  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
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additional property: OTSVerificationAPI
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T22:27:30Z
audio: Così fan tutte, K. 588: Act I Scene 2: Terzet: Soave sia il vento (Don Alfonso, Fiordiligi, Dorabella)
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Così fan tutte, K. 588: Act II Scene 1: Recitative: Andante la, che siete due bizzarre ragazze! (Despina, Fiordiligi, Dorabella)
type: MusicRecording
duration: PT2M2S
duration ms: 122706
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
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  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
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additional property: OTSVerificationAPI
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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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-08-01T00:10:46Z
audio: Così fan tutte, K. 588: Act II Scene 1: Recitative: Andante la, che siete due bizzarre ragazze! (Despina, Fiordiligi, Dorabella)
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Così fan tutte, K. 588: Act II Scene 4: Benedetti i doppi conjugi (Fiordiligi, Dorabella, Ferrando, Guglielmo, chorus)
type: MusicRecording
duration: PT4M16S
duration ms: 256826
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000045
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/GB6CE1000045
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 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 0x806128490eeaaf74106e314dd1f3aba99628ea1d91f1d638f24b5844dff98cf7. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/GB6CE1000045 — a six-check JSON result.
  date published: 2026-07-31T15:27:29Z
audio: Così fan tutte, K. 588: Act II Scene 4: Benedetti i doppi conjugi (Fiordiligi, Dorabella, Ferrando, Guglielmo, chorus)
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Così fan tutte, K. 588: Act I Scene 2: Che vita maledetta (Despina, Fiordiligi)
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duration: PT1M19S
duration ms: 79826
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000014
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: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcaa02a0598b1b68883afe0eb7c65c34f4550325c05efe6c1296a9b656182850. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000014 — a six-check JSON result.
  date published: 2026-07-31T02:19:15Z
audio: Così fan tutte, K. 588: Act I Scene 2: Che vita maledetta (Despina, Fiordiligi)
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Così fan tutte, K. 588: Act II Scene 1: Aria: Una donna a quindici anni (Despina, Fiordiligi, Dorabella)
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duration: PT5M8S
duration ms: 308360
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000029
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: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bced906bad2d6a3d73953687efd84509d9e6c1b252cdd2133eb0a78f449d8a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000029 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: Così fan tutte, K. 588: Act II Scene 1: Aria: Una donna a quindici anni (Despina, Fiordiligi, Dorabella)
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Così fan tutte, K. 588: Act II Scene 4: Miei Signori, tutto e fatto (Don Alfonso, Fiordiligi, Dorabella, Ferrando, Guglielmo, Despina, chorus)
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duration: PT3M41S
duration ms: 221693
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T05:17:02Z
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
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  date published: 2026-07-31T05:17:02Z
audio: Così fan tutte, K. 588: Act II Scene 4: Miei Signori, tutto e fatto (Don Alfonso, Fiordiligi, Dorabella, Ferrando, Guglielmo, Despina, chorus)
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Così fan tutte, K. 588: Act I Scene 2: Recitative: Ah scostati! Paventa il tristo effetto d'un disperato affetto! (Dorabella, Despina, Fiordiligi)
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duration: PT5M34S
duration ms: 334173
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
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additional property: CopyrightID
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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
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  date published: 2026-07-08T03:20:19Z
audio: Così fan tutte, K. 588: Act I Scene 2: Recitative: Ah scostati! Paventa il tristo effetto d'un disperato affetto! (Dorabella, Despina, Fiordiligi)
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Così fan tutte, K. 588: Act II Scene 2: Duetto: Prendero quel brunettino (Dorabella, Fiordiligi, Don Alfonso)
type: MusicRecording
duration: PT3M47S
duration ms: 227613
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000030
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
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000030
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88153496f631b7476c9c7ffea9bf197711fb9aa64ce92b28aaca2e342fb3df62. 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/GB6CE1000030 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Così fan tutte, K. 588: Act II Scene 2: Duetto: Prendero quel brunettino (Dorabella, Fiordiligi, Don Alfonso)
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  additional property: Valence (Positivity)
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Così fan tutte, K. 588: Act I Scene 2: In uomini, in soldati sperare fedeita? (Despina)
type: MusicRecording
duration: PT3M5S
duration ms: 185320
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000016
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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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
  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/GB6CE1000016
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 0xe93fc0c4e6daa15abc31882f41efc7b52fbbb26362defcf905d80e34b6d33a0c. 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/GB6CE1000016 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Così fan tutte, K. 588: Act I Scene 2: In uomini, in soldati sperare fedeita? (Despina)
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Così fan tutte, K. 588: Act II Scene 2: Duet: Secondate, aurette amiche (Ferrando, Guglielmo, Don Alfonso, Fiordiligi, Dorabella, chorus)
type: MusicRecording
duration: PT3M49S
duration ms: 229066
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000031
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000031
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b61b78536a65a81d6449eada57a9b2b6eb3cc3f74314e9bae800b618b4b4d0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000031 — a six-check JSON result.
  date published: 2026-07-31T12:24:41Z
audio: Così fan tutte, K. 588: Act II Scene 2: Duet: Secondate, aurette amiche (Ferrando, Guglielmo, Don Alfonso, Fiordiligi, Dorabella, chorus)
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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: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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Così fan tutte, K. 588: Act II Scene 2: Quartet: La mano a me date (Don Alfonso, Ferrando, Guglielmo, Despina)
type: MusicRecording
duration: PT5M43S
duration ms: 343293
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Stuart Burrows
by artist: Thomas Allen
by artist: Richard van Allan
by artist: Kiri Te Kanawa
by artist: Agnes Baltsa
by artist: Christa Mayer
by artist: Daniela Mazzuccato
by artist: Royal Opera House Chorus, Covent Garden
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: Mozart: Cosi fan tutte
  type: MusicAlbum
  date published: 2011-03-01
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: GB6CE1000032
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960317
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB6CE1000032
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T21:35:24Z
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 0x35e45e50e19b2042e68c728f36ac1245b78a2b3a67cc08ffbe18eb62ef8a0a9f. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GB6CE1000032 — a six-check JSON result.
  date published: 2026-07-30T21:35:24Z
audio: Così fan tutte, K. 588: Act II Scene 2: Quartet: La mano a me date (Don Alfonso, Ferrando, Guglielmo, Despina)
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Così fan tutte, K. 588: Act II Scene 2: Duet: Il core vi dono (Guglielmo, Dorabella)
type: MusicRecording
duration: PT5M8S
duration ms: 308093
explicit: false
by artist: Wolfgang Amadeus Mozart
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audio: Così fan tutte, K. 588: Act II Scene 2: Duet: Il core vi dono (Guglielmo, Dorabella)
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Wagner, R.: Tristan Und Isolde (Melchior, Flagstad, Reiner) (1936)
type: MusicAlbum
date published: 2000-09-17

Richard Wagner, Vol. 2 (1951-1952)
type: MusicAlbum
date published: 2012-11-01

Oscar Natzka: Great Recordings 1939-50
type: MusicAlbum
date published: 2001-01-01

Wagner, R.: Tristan Und Isolde (Furtwängler) (1952)
type: MusicAlbum
date published: 2004-05-05

Wagner, R.: Walkure (Die) / Gotterdammerung (Excerpts) (Furtwangler) (1937)
type: MusicAlbum
date published: 2011-04-01

Delius: Orchestral Works, Vol. 3
type: MusicAlbum
date published: 2000-06-06

Delius: Orchestral Works, Vol. 3 (Beecham) (1928, 1938)
type: MusicAlbum
date published: 2000-06-06

Wagner: Der fliegende Holländer, WWV 63 [Recorded 1960]
type: MusicAlbum
date published: 2015-01-01

Beethoven, L. Van: Fidelio [Opera] (1947)
type: MusicAlbum
date published: 2002-01-01