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genre: opera
description: Elena Xanthoudakis (born 1978) is an Australian operatic soprano. Life and career Xanthoudakis was born in Mount Beauty to Greek father and Australian mother, and raised in Bentleigh. After graduat
popularity: 3
followers: 230
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album: Il maestro. Italian Music by Puccini, Rossini, Verdi...
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album: Jewels of the Bel Canto: Arias by Donizetti, Bellini, Verdi & Rossini
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  track: La Fille du Régiment: "Chacun le sait"
  track: L’elisir d’amore: "Prendi, per me sei libero"
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  track: Rossini: Guillaume Tell: Overture
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  track: Rossini: Guillaume Tell, Act 2 Scene 1: No. 8, Choeur, "Quelle sauvage harmonie" (Chorus)
  track: Rossini: Guillaume Tell, Act 1: "Quel jour serein le ciel présage !" (Chœur)
  track: Rossini: Guillaume Tell, Act 1 Scene 1: Quatuor, "Accours dans ma nacelle" (Ruodi, Guillaume, Jemmy, Hedwige)
  track: Rossini: Guillaume Tell, Act 2 Scene 2: No. 9, Récitatif et Romance, "Ils s'éloignent enfin" (Mathilde)
  track: Rossini: Guillaume Tell, Act 1 Scene 1: Intermezzo (Allegretto, "Ici l'on entend le ranz des vâches")
  track: Rossini: Guillaume Tell, Act 2: "Sombre forêt" (Mathilde)
  track: Rossini: Guillaume Tell, Act 2 Scene 3: Récitatif, "Ma présence pour vous est peut-être un outrage?" (Arnold, Mathilde)
  track: Rossini: Guillaume Tell, Act 1 Scene 2: "Pasteurs, que vos accents s'unissent" (Melchthal, Chorus)
  track: Rossini: Guillaume Tell, Act 2 Scene 3: No. 10, Duo, "Oui, vous l'arrachez à mon âme" (Arnold, Mathilde)
  track: Rossini: Guillaume Tell, Act 2 Scene 3: "Doux aveu! ce tendre langage" (Arnold, Mathilde)
  track: Rossini: Guillaume Tell, Act 1 Scene 3: Récitatif, "Contre les feux du jour que mon toit solitaire" (Guillaume, Melchthal)
  track: Rossini: Guillaume Tell, Act 2 Scene 4: "Tu n'étais pas seul en ces lieux?" (Arnold, Guillaume, Walter)
  track: Rossini: Guillaume Tell, Act 1: Pas de six
  track: Rossini: Guillaume Tell, Act 2 Scene 7: "Honneur aux soutiens de nos droits!" (Guillaume, Arnold, Walter, Chorus)
  track: Rossini: Guillaume Tell, Act 2 Scene 7: "L'avalanche roulant de haut des nos montagnes" (Guillaume, Arnold, Walter, Chorus)
  track: Rossini: Guillaume Tell, Act 1 Scene 11: No. 7, Finale, "Dieu de bonté, Dieu tout-puissant" (Chorus, Rodolphe, Jemmy, Hedwige, Melchthal)
  track: Rossini: Guillaume Tell, Act 3 Scene 1: "Sur la rive étrangère" (Mathilde, Arnold)
  track: Rossini: Guillaume Tell, Act 1: Pas d'archers - "Gloire, honneur au fils de Guillaume" (Chœur, Jemmy, Hedwige)
album: Haydn: L'anima del filosofo, Hob. XXVIII:13 (Live)
album: 50 Ultimate Calming Classics
album: Janáček: The Makropulos Case
album: The Captive Nightingale
album: Very Best of Mendelssohn
album: Rota: Mysterium - C'era Una Volta Nella Grotta - Il Presepio - Il Natale Degli Innocenti
album: Mendelssohn: The Five Symphonies

La Fille du Régiment: "Chacun le sait"
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  date published: 2026-07-08T03:22:41Z
audio: La Fille du Régiment: "Chacun le sait"
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L’elisir d’amore: "Prendi, per me sei libero"
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  date published: 2026-07-30T17:23:26Z
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Rossini: Guillaume Tell, Act 1: Pas d'archers - "Gloire, honneur au fils de Guillaume" (Chœur, Jemmy, Hedwige)
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  date published: 2026-07-30T04:47:22Z
audio: Rossini: Guillaume Tell, Act 1: Pas d'archers - "Gloire, honneur au fils de Guillaume" (Chœur, Jemmy, Hedwige)
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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

The Makropulos Case, JW 1/10, Act I: Come this way please (Kolenaty, Kristina, Marty, Gregor)
type: MusicRecording
duration: PT11M22S
duration ms: 682866
explicit: false
by artist: Leoš Janáček
by artist: Sir Charles Mackerras
by artist: English National Opera Orchestra
by artist: Robert Brubaker
by artist: Cheryl Barker
by artist: Neal Davies
by artist: Elena Xanthoudakis
in album: Janáček: The Makropulos Case
  type: MusicAlbum
  date published: 2007-02-01
genre: classical
genre: czech-classical
genre: early-modern-classical
genre: contemporary-classical
genre: post-romantic-era
isrc code: GBLWD0701104
additional property: CopyrightID
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additional property: CopyrightRegisteredAt
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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/GBLWD0701104
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:39:04+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: The Makropulos Case, JW 1/10, Act I: Come this way please (Kolenaty, Kristina, Marty, Gregor)
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Die Verschworenen (Der häusliche Krieg), D.787: Romanze
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duration: PT3M23S
duration ms: 203706
explicit: false
by artist: Franz Schubert
by artist: Elena Xanthoudakis
by artist: Jason Xanthoudakis
by artist: Clemens Leske
in album: The Captive Nightingale
  type: MusicAlbum
  date published: 2016-01-22
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: GBLLH1639808
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
  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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Die Verschworenen (Der häusliche Krieg), D.787: Romanze
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Energy
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Speechiness
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Acousticness
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Instrumentalness
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value: 0.086

Liveness
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Valence (Positivity)
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value: 0.109

Loudness (dB)
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value: -24.186

Key Name
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Rossini: Guillaume Tell, Act 2 Scene 1: No. 8, Choeur, "Quelle sauvage harmonie" (Chorus)
type: MusicRecording
duration: PT1M50S
duration ms: 110960
explicit: false
by artist: Gioachino Rossini
by artist: Coro dell'Accademia Nazionale Di Santa Cecilia
by artist: Antonio Pappano
by artist: Orchestra dell'Accademia Nazionale di Santa Cecilia
in album: Rossini: William Tell
  type: MusicAlbum
  date published: 2011-07-11
genre: classical
genre: opera
isrc code: GBAYC1101288
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
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cedae83103e59ca6cd719bae58b7e421ea130ccb498322b38ceb1f4afd170ae. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1101288.
  date published: 2026-07-08T03:22:41Z
audio: Rossini: Guillaume Tell, Act 2 Scene 1: No. 8, Choeur, "Quelle sauvage harmonie" (Chorus)
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  additional property: Tempo (BPM)
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  additional property: Danceability
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  additional property: Energy
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    type: PropertyValue
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  additional property: 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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Rossini: Guillaume Tell, Act 1: "Quel jour serein le ciel présage !" (Chœur)
type: MusicRecording
duration: PT3M58S
duration ms: 238146
explicit: false
by artist: Gioachino Rossini
by artist: Coro dell'Accademia Nazionale Di Santa Cecilia
by artist: Antonio Pappano
by artist: Orchestra dell'Accademia Nazionale di Santa Cecilia
in album: Rossini: William Tell
  type: MusicAlbum
  date published: 2011-07-11
genre: classical
genre: opera
isrc code: GBAYC1101255
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1101255
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9d3e0e818614f057e21760db893c55d6a96f32f0d3b5e69b6060ac0da366e1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1101255.
  date published: 2026-07-02T05:09:12Z
audio: Rossini: Guillaume Tell, Act 1: "Quel jour serein le ciel présage !" (Chœur)
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Rossini: Guillaume Tell, Act 1 Scene 1: Quatuor, "Accours dans ma nacelle" (Ruodi, Guillaume, Jemmy, Hedwige)
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duration: PT4M46S
duration ms: 286120
explicit: false
by artist: Gioachino Rossini
by artist: Orchestra dell'Accademia Nazionale di Santa Cecilia
by artist: Antonio Pappano
in album: Rossini: William Tell
  type: MusicAlbum
  date published: 2011-07-11
genre: classical
genre: opera
isrc code: GBAYC1101256
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
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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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db3354ca1f341de2b5a66f51c59682e8f7d1ba6e8cc5f0f03cb36f6069e657d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1101256.
  date published: 2026-07-08T03:22:41Z
audio: Rossini: Guillaume Tell, Act 1 Scene 1: Quatuor, "Accours dans ma nacelle" (Ruodi, Guillaume, Jemmy, Hedwige)
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Rossini: Guillaume Tell, Act 2 Scene 2: No. 9, Récitatif et Romance, "Ils s'éloignent enfin" (Mathilde)
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duration: PT3M15S
duration ms: 195053
explicit: false
by artist: Gioachino Rossini
by artist: Antonio Pappano
by artist: Orchestra dell'Accademia Nazionale di Santa Cecilia
in album: Rossini: William Tell
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  date published: 2011-07-11
genre: classical
genre: opera
isrc code: GBAYC1101291
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106c2a2caad8f24ac82b941b2b4da062ce8ef74f3b5aaa9a8ee4948335693df9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1101291.
  date published: 2026-07-08T03:22:41Z
audio: Rossini: Guillaume Tell, Act 2 Scene 2: No. 9, Récitatif et Romance, "Ils s'éloignent enfin" (Mathilde)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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Rossini: Guillaume Tell, Act 1 Scene 1: Intermezzo (Allegretto, "Ici l'on entend le ranz des vâches")
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duration: PT1M29S
duration ms: 89546
explicit: false
by artist: Gioachino Rossini
by artist: Orchestra dell'Accademia Nazionale di Santa Cecilia
by artist: Antonio Pappano
in album: Rossini: William Tell
  type: MusicAlbum
  date published: 2011-07-11
genre: classical
genre: opera
isrc code: GBAYC1101257
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0ec306c683068cdb582457a107fbf85b3a580d9b17ae55b62b10655f93dce4aa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
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/GBAYC1101257
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec306c683068cdb582457a107fbf85b3a580d9b17ae55b62b10655f93dce4aa. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1101257.
  date published: 2026-07-08T03:22:41Z
audio: Rossini: Guillaume Tell, Act 1 Scene 1: Intermezzo (Allegretto, "Ici l'on entend le ranz des vâches")
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.011
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.152
  additional property: Energy
    type: PropertyValue
    value: 0.001
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.877
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.086
  additional property: Liveness
    type: PropertyValue
    value: 0.085
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.372
  additional property: Loudness (dB)
    type: PropertyValue
    value: -51.156
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Rossini: Guillaume Tell, Act 2: "Sombre forêt" (Mathilde)
type: MusicRecording
duration: PT4M40S
duration ms: 280613
explicit: false
by artist: Gioachino Rossini
by artist: Antonio Pappano
by artist: Malin Byström
by artist: Orchestra dell'Accademia Nazionale di Santa Cecilia
in album: Rossini: William Tell
  type: MusicAlbum
  date published: 2011-07-11
genre: classical
genre: opera
isrc code: GBAYC1101292
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:58:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd3b2312c6e0e593d0a9795037fc24d7665a2f12ab25faf6f9c7836d2c2f98a35
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/GBAYC1101292
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b2312c6e0e593d0a9795037fc24d7665a2f12ab25faf6f9c7836d2c2f98a35. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1101292.
  date published: 2026-07-08T03:20:19Z
audio: Rossini: Guillaume Tell, Act 2: "Sombre forêt" (Mathilde)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.156
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.186
  additional property: Energy
    type: PropertyValue
    value: 0.061
  additional property: Speechiness
    type: PropertyValue
    value: 0.067
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.012
  additional property: Liveness
    type: PropertyValue
    value: 0.158
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.144
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Rossini: Guillaume Tell, Act 2 Scene 3: Récitatif, "Ma présence pour vous est peut-être un outrage?" (Arnold, Mathilde)
type: MusicRecording
duration: PT2M54S
duration ms: 174826
explicit: false
by artist: Gioachino Rossini
by artist: Antonio Pappano
by artist: Orchestra dell'Accademia Nazionale di Santa Cecilia
in album: Rossini: William Tell
  type: MusicAlbum
  date published: 2011-07-11
genre: classical
genre: opera
isrc code: GBAYC1101294
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T11:33:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3b1979ff8072c738d409d2f63c88ee62a43b91015f0cb06667cbefb8a923cd1f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1101294
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1979ff8072c738d409d2f63c88ee62a43b91015f0cb06667cbefb8a923cd1f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1101294.
  date published: 2026-07-08T08:56:20Z
audio: Rossini: Guillaume Tell, Act 2 Scene 3: Récitatif, "Ma présence pour vous est peut-être un outrage?" (Arnold, Mathilde)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 123.522
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.451
  additional property: Energy
    type: PropertyValue
    value: 0.029
  additional property: Speechiness
    type: PropertyValue
    value: 0.083
  additional property: Acousticness
    type: PropertyValue
    value: 0.951
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.404
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.074
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.415
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Rossini: Guillaume Tell, Act 1 Scene 2: "Pasteurs, que vos accents s'unissent" (Melchthal, Chorus)
type: MusicRecording
duration: PT2M49S
duration ms: 169680
explicit: false
by artist: Gioachino Rossini
by artist: Marie-Nicole Lemieux
by artist: Antonio Pappano
by artist: Orchestra dell'Accademia Nazionale di Santa Cecilia
in album: Rossini: William Tell
  type: MusicAlbum
  date published: 2011-07-11
genre: classical
genre: opera
isrc code: GBAYC1101261
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T06:54:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x00a216ae97ff349d5ef1f1a2883b065ab82230b216caefc13fcb6d854f6ff511
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956891
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956891
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1101261
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T07:16:32Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a216ae97ff349d5ef1f1a2883b065ab82230b216caefc13fcb6d854f6ff511. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1101261.
  date published: 2026-07-06T07:16:32Z
audio: Rossini: Guillaume Tell, Act 1 Scene 2: "Pasteurs, que vos accents s'unissent" (Melchthal, Chorus)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.648
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.229
  additional property: Energy
    type: PropertyValue
    value: 0.143
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.31
  additional property: Liveness
    type: PropertyValue
    value: 0.168
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.257
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.442
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Rossini: Guillaume Tell, Act 2 Scene 3: No. 10, Duo, "Oui, vous l'arrachez à mon âme" (Arnold, Mathilde)
type: MusicRecording
duration: PT3M1S
duration ms: 181160
explicit: false
by artist: Gioachino Rossini
by artist: Orchestra dell'Accademia Nazionale di Santa Cecilia
by artist: Antonio Pappano
in album: Rossini: William Tell
  type: MusicAlbum
  date published: 2011-07-11
genre: classical
genre: opera
isrc code: GBAYC1101295
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:01:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc438e3c38aece51d49bced8d61eb1ef8c20464cb9424fa7596f5d71c48f06af3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1101295
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc438e3c38aece51d49bced8d61eb1ef8c20464cb9424fa7596f5d71c48f06af3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1101295.
  date published: 2026-07-08T03:53:27Z
audio: Rossini: Guillaume Tell, Act 2 Scene 3: No. 10, Duo, "Oui, vous l'arrachez à mon âme" (Arnold, Mathilde)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 163.281
  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: 0.334
  additional property: Energy
    type: PropertyValue
    value: 0.115
  additional property: Speechiness
    type: PropertyValue
    value: 0.087
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.169
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.151
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.7
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Rossini: Guillaume Tell, Act 2 Scene 3: "Doux aveu! ce tendre langage" (Arnold, Mathilde)
type: MusicRecording
duration: PT3M15S
duration ms: 195626
explicit: false
by artist: Gioachino Rossini
by artist: Antonio Pappano
by artist: Orchestra dell'Accademia Nazionale di Santa Cecilia
in album: Rossini: William Tell
  type: MusicAlbum
  date published: 2011-07-11
genre: classical
genre: opera
isrc code: GBAYC1101296
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:16:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6585b99b5a4eb505bd3424a8b343ba586e0f4cafaf0504de9d920163b3a10d9a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
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/GBAYC1101296
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6585b99b5a4eb505bd3424a8b343ba586e0f4cafaf0504de9d920163b3a10d9a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1101296.
  date published: 2026-07-08T03:22:41Z
audio: Rossini: Guillaume Tell, Act 2 Scene 3: "Doux aveu! ce tendre langage" (Arnold, Mathilde)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.58
  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: 0.331
  additional property: Energy
    type: PropertyValue
    value: 0.028
  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.291
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.15
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.06
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Rossini: Guillaume Tell, Act 1 Scene 3: Récitatif, "Contre les feux du jour que mon toit solitaire" (Guillaume, Melchthal)
type: MusicRecording
duration: PT1M1S
duration ms: 61973
explicit: false
by artist: Gioachino Rossini
by artist: Frédéric Caton
by artist: Antonio Pappano
by artist: Orchestra dell'Accademia Nazionale di Santa Cecilia
in album: Rossini: William Tell
  type: MusicAlbum
  date published: 2011-07-11
genre: classical
genre: opera
isrc code: GBAYC1101264
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T19:59:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x660d9f793f3db7cbb61650007453cb9ccbe05c0bd0304cad0be261f4320e5034
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/GBAYC1101264
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660d9f793f3db7cbb61650007453cb9ccbe05c0bd0304cad0be261f4320e5034. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC1101264.
  date published: 2026-07-08T03:20:19Z
audio: Rossini: Guillaume Tell, Act 1 Scene 3: Récitatif, "Contre les feux du jour que mon toit solitaire" (Guillaume, Melchthal)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.444
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.461
  additional property: Energy
    type: PropertyValue
    value: 0.049
  additional property: Speechiness
    type: PropertyValue
    value: 0.09
  additional property: Acousticness
    type: PropertyValue
    value: 0.95
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.712
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.526
  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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Rossini: Guillaume Tell, Act 2 Scene 4: "Tu n'étais pas seul en ces lieux?" (Arnold, Guillaume, Walter)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Rossini: Guillaume Tell, Act 2 Scene 4: "Tu n'étais pas seul en ces lieux?" (Arnold, Guillaume, Walter)
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Rossini: Guillaume Tell, Act 1: Pas de six
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Rossini: Guillaume Tell, Act 1: Pas de six
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Rossini: Guillaume Tell, Act 2 Scene 7: "Honneur aux soutiens de nos droits!" (Guillaume, Arnold, Walter, Chorus)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Rossini: Guillaume Tell, Act 2 Scene 7: "Honneur aux soutiens de nos droits!" (Guillaume, Arnold, Walter, Chorus)
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Rossini: Guillaume Tell, Act 2 Scene 7: "L'avalanche roulant de haut des nos montagnes" (Guillaume, Arnold, Walter, Chorus)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Rossini: Guillaume Tell, Act 2 Scene 7: "L'avalanche roulant de haut des nos montagnes" (Guillaume, Arnold, Walter, Chorus)
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Rossini: Guillaume Tell, Act 1 Scene 11: No. 7, Finale, "Dieu de bonté, Dieu tout-puissant" (Chorus, Rodolphe, Jemmy, Hedwige, Melchthal)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T18:39:05Z
audio: Rossini: Guillaume Tell, Act 1 Scene 11: No. 7, Finale, "Dieu de bonté, Dieu tout-puissant" (Chorus, Rodolphe, Jemmy, Hedwige, Melchthal)
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Rossini: Guillaume Tell, Act 3 Scene 1: "Sur la rive étrangère" (Mathilde, Arnold)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Rossini: Guillaume Tell, Act 3 Scene 1: "Sur la rive étrangère" (Mathilde, Arnold)
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Haydn: L'anima del filosofo, Hob. XXVIII:13 (Live)
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date published: 2017-04-07

50 Ultimate Calming Classics
type: MusicAlbum
date published: 2019-04-26

Janáček: The Makropulos Case
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track: The Makropulos Case, JW 1/10, Act I: Prelude
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  by artist: Sir Charles Mackerras
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