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type: MusicGroup
genre: opera
popularity: 10
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-20T23:40:06Z
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track: Offenbach: La Grande-Duchesse de Gérolstein, Act 1: "Ah! C'est un fameux regiment" (Duchesse, Chorus, All)
track: Offenbach: La Grande-Duchesse de Gérolstein, Act 2: "Le carillon de ma grand-mére" (Duchesse, All)
track: Offenbach: La Belle Hélène, Act 1: Finale. "Les Dieux decrétènt par ma voix" (Calchas, Ménélas, Hélène, Pâris, Agamemnon, Oreste, Ajax I, Ajax II, Achille, Chœur)
track: Offenbach: La Belle Hélène, Act 1: Dialogue. "Rois et peuples de la Grèce, salut à vous !" (Agamemnon, Hélène, Oreste, Ménélas, Ajax I, Ajax II, Achille, Pâris, Calchas, Chœur)
track: Offenbach: La Belle Hélène, Act 1: Finale. "Gloire ! Gloire au berger victorieux" (Chœur, Agamemnon, Hélène, Oreste, Ménélas, Ajax I, Ajax II, Achille, Pâris, Calchas)
track: Offenbach: La Belle Hélène, Act 1: Finale. "Ainsi vous êtes gentilhomme" (Ménélas, Hélène, Pâris, Calchas, Agamemnon, Oreste, Ajax I, Ajax II, Achille, Chœur)
track: Offenbach: La Belle Hélène, Act 2: Marche de l'oie. "Le voici, le roi des rois" (Chœur, Hélène, Bacchis, Oreste, Achille, Ajax I, Ajax II, Agamemnon, Calchas)
track: Offenbach: La Belle Hélène, Act 2: Scène du jeu de l'oie. "A Calchas qui tremblote" (Chœur, Hélène, Bacchis, Oreste, Achille, Ajax I, Ajax II, Agamemnon, Calchas)
track: Offenbach: La Belle Hélène, Act 2: Finale. "À moi, rois de la Grèce !" - Chœur. "En couronnes, tressons les roses" (Ménélas, Hélène, Pâris, Oreste, Agamemnon, Ajax I, Ajax II, Achille, Calcha
track: Offenbach: La Belle Hélène, Act 2: Couplets. "Ne criez pas notre cher hôte" (Ménélas, Hélène, Pâris, Oreste, Agamemnon, Ajax I, Ajax II, Achille, Calchas, Bacchis, Chœur)
track: Offenbach: La Belle Hélène, Act 2: Air et chœur. "Va t'en, va t'en, mon amour te suivra" (Hélène, Ménélas, Pâris, Oreste, Agamemnon, Ajax I, Ajax II, Achille, Calchas, Bacchis, Chœur)
track: Offenbach: La Belle Hélène, Act 3: Dialogue. "L'eau est-elle bonne, bouillant Achille ?" - Mélodrame. "Mais alors, ce n'était pas un rêve ?" (Oreste, Achille, Ajax I, Ajax II, Agamemnon, Calc
track: Offenbach: La Belle Hélène, Act 3: Chœur. "La galère de Cythère" (Chœur, Ménélas, Parthénis, Léœna, Oreste, Ajax I, Ajax II, Achille, Agamemnon, Hélène, Calchas)
track: Offenbach: La Belle Hélène, Act 3: Tyrolienne. "Et tout d'abord, ô vile multitude" (Pâris, Parthénis, Léœna, Oreste, Ajax I, Ajax II, Achille, Agamemnon, Ménélas, Hélène, Calchas, Chœur)
track: Offenbach: La Belle Hélène, Act 3: Dialogue. "Quelle tenue pour un augure !" (Pâris, Parthénis, Léœna, Oreste, Ajax I, Ajax II, Achille, Agamemnon, Ménélas, Hélène, Calchas, Chœur)
track: Offenbach: La Belle Hélène, Act 3: Finale. "Elle vient ! C'est elle !" (Pâris, Parthénis, Léœna, Oreste, Ajax I, Ajax II, Achille, Agamemnon, Ménélas, Hélène, Calchas, Chœur)
track: Offenbach: La Grande-Duchesse de Gérolstein, Act 1: "Voici le sabre de mon père" (Duchesse, All)

Offenbach: La Grande-Duchesse de Gérolstein, Act 1: "Ah! C'est un fameux regiment" (Duchesse, Chorus, All)
type: MusicRecording
duration: PT3M18S
duration ms: 198773
explicit: false
by artist: Jacques Offenbach
by artist: Marc Minkowski
by artist: Felicity Lott
by artist: Sandrine Piau
by artist: Yann Beuron
by artist: Choeur des Musiciens du Louvre
by artist: Aurélia Legay
by artist: Blandine Staskiewicz
by artist: Alain Gabriel
by artist: Maryline Fallot
by artist: Francois Le Roux
by artist: Jennifer Tani
by artist: Franck Leguérinel
by artist: Les Musiciens du Louvre.Grenoble
by artist: Boris Grappe
by artist: Christophe Grapperon
by artist: Éric Huchet
in album: Offenbach: La Grande Duchesse de Gerolstein
  type: MusicAlbum
  date published: 2005-09-02
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
isrc code: GBAYC0402559
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additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSTimestamp
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  value: 2026-07-08T03:20:19+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
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additional property: TokenDeploymentConfirmed
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Offenbach: La Grande-Duchesse de Gérolstein, Act 1: "Ah! C'est un fameux regiment" (Duchesse, Chorus, All)
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Offenbach: La Grande-Duchesse de Gérolstein, Act 2: "Le carillon de ma grand-mére" (Duchesse, All)
type: MusicRecording
duration: PT4M9S
duration ms: 249906
explicit: false
by artist: Jacques Offenbach
by artist: Felicity Lott
by artist: Sandrine Piau
by artist: Yann Beuron
by artist: Choeur des Musiciens du Louvre
by artist: Les Musiciens du Louvre
by artist: Boris Grappe
by artist: Franck Leguérinel
by artist: Blan
by artist: Francois Le Roux
by artist: Éric Huchet
by artist: Marc Minkowski
by artist: Maryline Fallot
by artist: Alain Gabriel
by artist: Christophe Grapperon
by artist: Aurélia Legay
by artist: Grenoble
by artist: Blandine Staskiewicz
by artist: Jennifer Tani
by artist: Les Musiciens du Louvre.Grenoble
in album: Offenbach: La Grande Duchesse de Gerolstein
  type: MusicAlbum
  date published: 2005-09-02
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
isrc code: GBAYC0402589
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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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: Offenbach: La Grande-Duchesse de Gérolstein, Act 2: "Le carillon de ma grand-mére" (Duchesse, All)
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Offenbach: La Belle Hélène, Act 1: Finale. "Les Dieux decrétènt par ma voix" (Calchas, Ménélas, Hélène, Pâris, Agamemnon, Oreste, Ajax I, Ajax II, Achille, Chœur)
type: MusicRecording
duration: PT3M25S
duration ms: 205826
explicit: false
by artist: Jacques Offenbach
by artist: Marc Minkowski
by artist: Alain Gabriel
by artist: Choeur des Musiciens du Louvre
by artist: Éric Huchet
by artist: Felicity Lott
by artist: Françoix Le Roux
by artist: Laurent Alvaro
by artist: Laurent Naouri
by artist: Marie-Ange Todorovitch
by artist: Michel Sénéchal
by artist: Yann Beuron
by artist: Les Musiciens du Louvre
in album: Offenbach: La Belle Hélène
  type: MusicAlbum
  date published: 2001-11-06
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-22T14:47:20Z
audio: Offenbach: La Belle Hélène, Act 1: Finale. "Les Dieux decrétènt par ma voix" (Calchas, Ménélas, Hélène, Pâris, Agamemnon, Oreste, Ajax I, Ajax II, Achille, Chœur)
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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

Offenbach: La Belle Hélène, Act 1: Dialogue. "Rois et peuples de la Grèce, salut à vous !" (Agamemnon, Hélène, Oreste, Ménélas, Ajax I, Ajax II, Achille, Pâris, Calchas, Chœur)
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duration: PT5M25S
duration ms: 325266
explicit: false
by artist: Jacques Offenbach
by artist: Marc Minkowski
by artist: Alain Gabriel
by artist: Choeur des Musiciens du Louvre
by artist: Éric Huchet
by artist: Felicity Lott
by artist: Françoix Le Roux
by artist: Laurent Alvaro
by artist: Laurent Naouri
by artist: Marie-Ange Todorovitch
by artist: Michel Sénéchal
by artist: Yann Beuron
by artist: Les Musiciens du Louvre
in album: Offenbach: La Belle Hélène
  type: MusicAlbum
  date published: 2001-11-06
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T12:06:10Z
audio: Offenbach: La Belle Hélène, Act 1: Dialogue. "Rois et peuples de la Grèce, salut à vous !" (Agamemnon, Hélène, Oreste, Ménélas, Ajax I, Ajax II, Achille, Pâris, Calchas, Chœur)
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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

Offenbach: La Belle Hélène, Act 1: Finale. "Gloire ! Gloire au berger victorieux" (Chœur, Agamemnon, Hélène, Oreste, Ménélas, Ajax I, Ajax II, Achille, Pâris, Calchas)
type: MusicRecording
duration: PT2M24S
duration ms: 144440
explicit: false
by artist: Jacques Offenbach
by artist: Marc Minkowski
by artist: Alain Gabriel
by artist: Choeur des Musiciens du Louvre
by artist: Éric Huchet
by artist: Felicity Lott
by artist: Françoix Le Roux
by artist: Laurent Alvaro
by artist: Laurent Naouri
by artist: Marie-Ange Todorovitch
by artist: Michel Sénéchal
by artist: Yann Beuron
by artist: Les Musiciens du Louvre
in album: Offenbach: La Belle Hélène
  type: MusicAlbum
  date published: 2001-11-06
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae943c0a1e5b6c5fae1b5815f738fbd2a67495835e4dd13008e1be01f4fa8b4. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GBAYC0003390.
  date published: 2026-07-29T11:07:37Z
audio: Offenbach: La Belle Hélène, Act 1: Finale. "Gloire ! Gloire au berger victorieux" (Chœur, Agamemnon, Hélène, Oreste, Ménélas, Ajax I, Ajax II, Achille, Pâris, Calchas)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 94.213
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.442
  additional property: Energy
    type: PropertyValue
    value: 0.059
  additional property: Speechiness
    type: PropertyValue
    value: 0.089
  additional property: Acousticness
    type: PropertyValue
    value: 0.97
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.546
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.069
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.946
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0003390
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960095
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T11:07:37+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0003390
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960095
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960095
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T11:07:37+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Offenbach: La Belle Hélène, Act 1: Finale. "Ainsi vous êtes gentilhomme" (Ménélas, Hélène, Pâris, Calchas, Agamemnon, Oreste, Ajax I, Ajax II, Achille, Chœur)
type: MusicRecording
duration: PT3M17S
duration ms: 197333
explicit: false
by artist: Jacques Offenbach
by artist: Marc Minkowski
by artist: Alain Gabriel
by artist: Choeur des Musiciens du Louvre
by artist: Éric Huchet
by artist: Felicity Lott
by artist: Françoix Le Roux
by artist: Laurent Alvaro
by artist: Laurent Naouri
by artist: Marie-Ange Todorovitch
by artist: Michel Sénéchal
by artist: Yann Beuron
by artist: Les Musiciens du Louvre
in album: Offenbach: La Belle Hélène
  type: MusicAlbum
  date published: 2001-11-06
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757e5c3a173452712eec0f9cfa984ad096b234c44f31fce4afd65f7f9621f0cd. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/GBAYC0003391.
  date published: 2026-07-29T22:48:59Z
audio: Offenbach: La Belle Hélène, Act 1: Finale. "Ainsi vous êtes gentilhomme" (Ménélas, Hélène, Pâris, Calchas, Agamemnon, Oreste, Ajax I, Ajax II, Achille, Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 98.192
  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: 0.409
  additional property: Energy
    type: PropertyValue
    value: 0.172
  additional property: Speechiness
    type: PropertyValue
    value: 0.174
  additional property: Acousticness
    type: PropertyValue
    value: 0.939
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.141
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.267
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.116
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0003391
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960160
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T22:48:59+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0003391
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960160
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960160
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T22:48:59+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Offenbach: La Belle Hélène, Act 2: Marche de l'oie. "Le voici, le roi des rois" (Chœur, Hélène, Bacchis, Oreste, Achille, Ajax I, Ajax II, Agamemnon, Calchas)
type: MusicRecording
duration: PT0M58S
duration ms: 58186
explicit: false
by artist: Jacques Offenbach
by artist: Marc Minkowski
by artist: Alain Gabriel
by artist: Choeur des Musiciens du Louvre
by artist: Éric Huchet
by artist: Felicity Lott
by artist: Francois Le Roux
by artist: Hjördis Thébault
by artist: Laurent Alvaro
by artist: Laurent Naouri
by artist: Marie-Ange Todorovitch
by artist: Les Musiciens du Louvre
in album: Offenbach: La Belle Hélène
  type: MusicAlbum
  date published: 2001-11-06
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260c0f6c7eb9a94f58df7bbe0f8a63559c58d8e47bbd0f06c7f520ebbd4fa9c3. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0003399.
  date published: 2026-07-29T21:09:47Z
audio: Offenbach: La Belle Hélène, Act 2: Marche de l'oie. "Le voici, le roi des rois" (Chœur, Hélène, Bacchis, Oreste, Achille, Ajax I, Ajax II, Agamemnon, Calchas)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.99
  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: 0.67
  additional property: Energy
    type: PropertyValue
    value: 0.297
  additional property: Speechiness
    type: PropertyValue
    value: 0.107
  additional property: Acousticness
    type: PropertyValue
    value: 0.936
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.075
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.146
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.755
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0003399
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960144
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T21:09:47+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0003399
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: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T21:09:47+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Offenbach: La Belle Hélène, Act 2: Scène du jeu de l'oie. "A Calchas qui tremblote" (Chœur, Hélène, Bacchis, Oreste, Achille, Ajax I, Ajax II, Agamemnon, Calchas)
type: MusicRecording
duration: PT5M22S
duration ms: 322200
explicit: false
by artist: Jacques Offenbach
by artist: Marc Minkowski
by artist: Alain Gabriel
by artist: Choeur des Musiciens du Louvre
by artist: Éric Huchet
by artist: Felicity Lott
by artist: Françoix Le Roux
by artist: Hjördis Thébault
by artist: Laurent Alvaro
by artist: Laurent Naouri
by artist: Marie-Ange Todorovitch
by artist: Les Musiciens du Louvre
in album: Offenbach: La Belle Hélène
  type: MusicAlbum
  date published: 2001-11-06
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18f6c9d70ca73e004e01bf0fcf486c9da427023c10a26150b446acef10850eb. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0003401.
  date published: 2026-07-29T19:35:34Z
audio: Offenbach: La Belle Hélène, Act 2: Scène du jeu de l'oie. "A Calchas qui tremblote" (Chœur, Hélène, Bacchis, Oreste, Achille, Ajax I, Ajax II, Agamemnon, Calchas)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.515
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.447
  additional property: Energy
    type: PropertyValue
    value: 0.237
  additional property: Speechiness
    type: PropertyValue
    value: 0.206
  additional property: Acousticness
    type: PropertyValue
    value: 0.951
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.611
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.265
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.106
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0003401
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960138
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T19:35:34+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0003401
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960138
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960138
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T19:35:34+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Offenbach: La Belle Hélène, Act 2: Finale. "À moi, rois de la Grèce !" - Chœur. "En couronnes, tressons les roses" (Ménélas, Hélène, Pâris, Oreste, Agamemnon, Ajax I, Ajax II, Achille, Calcha
type: MusicRecording
duration: PT2M35S
duration ms: 155800
explicit: false
by artist: Jacques Offenbach
by artist: Marc Minkowski
by artist: Alain Gabriel
by artist: Choeur des Musiciens du Louvre
by artist: Éric Huchet
by artist: Felicity Lott
by artist: Françoix Le Roux
by artist: Hjördis Thébault
by artist: Laurent Alvaro
by artist: Laurent Naouri
by artist: Marie-Ange Todorovitch
by artist: Michel Sénéchal
by artist: Yann Beuron
by artist: Les Musiciens du Louvre
in album: Offenbach: La Belle Hélène
  type: MusicAlbum
  date published: 2001-11-06
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4945918d8051c8350bb7b6055953e84d0d82ff151050d5d42d9ef87e67387471. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0003406.
  date published: 2026-07-30T09:57:33Z
audio: Offenbach: La Belle Hélène, Act 2: Finale. "À moi, rois de la Grèce !" - Chœur. "En couronnes, tressons les roses" (Ménélas, Hélène, Pâris, Oreste, Agamemnon, Ajax I, Ajax II, Achille, Calcha
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 97.791
  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: 0.418
  additional property: Energy
    type: PropertyValue
    value: 0.16
  additional property: Speechiness
    type: PropertyValue
    value: 0.196
  additional property: Acousticness
    type: PropertyValue
    value: 0.946
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.266
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.354
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.926
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0003406
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960240
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T09:57:33+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0003406
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: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T09:57:33+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Offenbach: La Belle Hélène, Act 2: Couplets. "Ne criez pas notre cher hôte" (Ménélas, Hélène, Pâris, Oreste, Agamemnon, Ajax I, Ajax II, Achille, Calchas, Bacchis, Chœur)
type: MusicRecording
duration: PT2M46S
duration ms: 166333
explicit: false
by artist: Jacques Offenbach
by artist: Marc Minkowski
by artist: Alain Gabriel
by artist: Choeur des Musiciens du Louvre
by artist: Éric Huchet
by artist: Felicity Lott
by artist: Françoix Le Roux
by artist: Hjördis Thébault
by artist: Laurent Alvaro
by artist: Laurent Naouri
by artist: Marie-Ange Todorovitch
by artist: Michel Sénéchal
by artist: Yann Beuron
by artist: Les Musiciens du Louvre
in album: Offenbach: La Belle Hélène
  type: MusicAlbum
  date published: 2001-11-06
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff3d19974f7d5792d189437ef407d74a42d09c98fc041b3a0afc39344a61be4. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0003407.
  date published: 2026-07-29T14:28:24Z
audio: Offenbach: La Belle Hélène, Act 2: Couplets. "Ne criez pas notre cher hôte" (Ménélas, Hélène, Pâris, Oreste, Agamemnon, Ajax I, Ajax II, Achille, Calchas, Bacchis, Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.695
  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: 0.563
  additional property: Energy
    type: PropertyValue
    value: 0.111
  additional property: Speechiness
    type: PropertyValue
    value: 0.167
  additional property: Acousticness
    type: PropertyValue
    value: 0.963
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.274
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.449
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.505
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0003407
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960117
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T14:28:24+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0003407
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960117
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960117
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T14:28:24+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Offenbach: La Belle Hélène, Act 2: Air et chœur. "Va t'en, va t'en, mon amour te suivra" (Hélène, Ménélas, Pâris, Oreste, Agamemnon, Ajax I, Ajax II, Achille, Calchas, Bacchis, Chœur)
type: MusicRecording
duration: PT3M20S
duration ms: 200800
explicit: false
by artist: Jacques Offenbach
by artist: Marc Minkowski
by artist: Alain Gabriel
by artist: Choeur des Musiciens du Louvre
by artist: Éric Huchet
by artist: Felicity Lott
by artist: Françoix Le Roux
by artist: Hjördis Thébault
by artist: Laurent Alvaro
by artist: Laurent Naouri
by artist: Marie-Ange Todorovitch
by artist: Michel Sénéchal
by artist: Yann Beuron
by artist: Les Musiciens du Louvre
in album: Offenbach: La Belle Hélène
  type: MusicAlbum
  date published: 2001-11-06
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f0ea8156eb11a5bbee5638e1a8328322c5fe33f73649d851714919a67f3bb7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0003408.
  date published: 2026-07-29T19:35:34Z
audio: Offenbach: La Belle Hélène, Act 2: Air et chœur. "Va t'en, va t'en, mon amour te suivra" (Hélène, Ménélas, Pâris, Oreste, Agamemnon, Ajax I, Ajax II, Achille, Calchas, Bacchis, Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.492
  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: 0.406
  additional property: Energy
    type: PropertyValue
    value: 0.264
  additional property: Speechiness
    type: PropertyValue
    value: 0.117
  additional property: Acousticness
    type: PropertyValue
    value: 0.952
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.038
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.333
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.181
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0003408
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960138
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T19:35:34+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0003408
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960138
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960138
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T19:35:34+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Offenbach: La Belle Hélène, Act 3: Dialogue. "L'eau est-elle bonne, bouillant Achille ?" - Mélodrame. "Mais alors, ce n'était pas un rêve ?" (Oreste, Achille, Ajax I, Ajax II, Agamemnon, Calc
type: MusicRecording
duration: PT3M1S
duration ms: 181640
explicit: false
by artist: Jacques Offenbach
by artist: Marc Minkowski
by artist: Alain Gabriel
by artist: Éric Huchet
by artist: Felicity Lott
by artist: Françoix Le Roux
by artist: Laurent Alvaro
by artist: Laurent Naouri
by artist: Magali Léger
by artist: Marie-Ange Todorovitch
by artist: Michel Sénéchal
by artist: Stéphanie D'Oustrac
by artist: Les Musiciens du Louvre
in album: Offenbach: La Belle Hélène
  type: MusicAlbum
  date published: 2001-11-06
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abb1dcc513e7ac6e4f5434ba7da1fa9289d79528bf6f5a0aa84efa64e9a8a10. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0003412.
  date published: 2026-07-31T00:26:26Z
audio: Offenbach: La Belle Hélène, Act 3: Dialogue. "L'eau est-elle bonne, bouillant Achille ?" - Mélodrame. "Mais alors, ce n'était pas un rêve ?" (Oreste, Achille, Ajax I, Ajax II, Agamemnon, Calc
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.396
  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: 0.603
  additional property: Energy
    type: PropertyValue
    value: 0.104
  additional property: Speechiness
    type: PropertyValue
    value: 0.724
  additional property: Acousticness
    type: PropertyValue
    value: 0.79
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.695
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.516
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.058
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0003412
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960327
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T00:26:26+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0003412
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: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T00:26:26+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Offenbach: La Belle Hélène, Act 3: Chœur. "La galère de Cythère" (Chœur, Ménélas, Parthénis, Léœna, Oreste, Ajax I, Ajax II, Achille, Agamemnon, Hélène, Calchas)
type: MusicRecording
duration: PT1M56S
duration ms: 116160
explicit: false
by artist: Jacques Offenbach
by artist: Marc Minkowski
by artist: Alain Gabriel
by artist: Choeur des Musiciens du Louvre
by artist: Éric Huchet
by artist: Felicity Lott
by artist: Françoix Le Roux
by artist: Laurent Alvaro
by artist: Laurent Naouri
by artist: Magali Léger
by artist: Marie-Ange Todorovitch
by artist: Michel Sénéchal
by artist: Stéphanie D'Oustrac
by artist: Les Musiciens du Louvre
in album: Offenbach: La Belle Hélène
  type: MusicAlbum
  date published: 2001-11-06
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7615fafb1e2851949eb0b2cb11e3b67950ab6e659a11ea871ce2de8b7c0608d. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GBAYC0003418.
  date published: 2026-07-30T14:44:50Z
audio: Offenbach: La Belle Hélène, Act 3: Chœur. "La galère de Cythère" (Chœur, Ménélas, Parthénis, Léœna, Oreste, Ajax I, Ajax II, Achille, Agamemnon, Hélène, Calchas)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 153.475
  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: 0.202
  additional property: Energy
    type: PropertyValue
    value: 0.125
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.026
  additional property: Liveness
    type: PropertyValue
    value: 0.138
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.078
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.488
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0003418
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960266
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T14:44:50+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0003418
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960266
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960266
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T14:44:50+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Offenbach: La Belle Hélène, Act 3: Tyrolienne. "Et tout d'abord, ô vile multitude" (Pâris, Parthénis, Léœna, Oreste, Ajax I, Ajax II, Achille, Agamemnon, Ménélas, Hélène, Calchas, Chœur)
type: MusicRecording
duration: PT3M19S
duration ms: 199386
explicit: false
by artist: Jacques Offenbach
by artist: Marc Minkowski
by artist: Alain Gabriel
by artist: Choeur des Musiciens du Louvre
by artist: Éric Huchet
by artist: Felicity Lott
by artist: Françoix Le Roux
by artist: Laurent Alvaro
by artist: Laurent Naouri
by artist: Magali Léger
by artist: Marie-Ange Todorovitch
by artist: Michel Sénéchal
by artist: Stéphanie D'Oustrac
by artist: Yann Beuron
by artist: Les Musiciens du Louvre
in album: Offenbach: La Belle Hélène
  type: MusicAlbum
  date published: 2001-11-06
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e080c471c48c56c35285bd3bb55dcf073ba3f61200bd3647b43dd0c97feec8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0003419.
  date published: 2026-07-29T19:35:34Z
audio: Offenbach: La Belle Hélène, Act 3: Tyrolienne. "Et tout d'abord, ô vile multitude" (Pâris, Parthénis, Léœna, Oreste, Ajax I, Ajax II, Achille, Agamemnon, Ménélas, Hélène, Calchas, Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.556
  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: 0.508
  additional property: Energy
    type: PropertyValue
    value: 0.28
  additional property: Speechiness
    type: PropertyValue
    value: 0.263
  additional property: Acousticness
    type: PropertyValue
    value: 0.975
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.055
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.479
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.658
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0003419
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960138
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T19:35:34+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0003419
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960138
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960138
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T19:35:34+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Offenbach: La Belle Hélène, Act 3: Dialogue. "Quelle tenue pour un augure !" (Pâris, Parthénis, Léœna, Oreste, Ajax I, Ajax II, Achille, Agamemnon, Ménélas, Hélène, Calchas, Chœur)
type: MusicRecording
duration: PT1M10S
duration ms: 70040
explicit: false
by artist: Jacques Offenbach
by artist: Marc Minkowski
by artist: Alain Gabriel
by artist: Choeur des Musiciens du Louvre
by artist: Éric Huchet
by artist: Felicity Lott
by artist: Françoix Le Roux
by artist: Laurent Alvaro
by artist: Laurent Naouri
by artist: Magali Léger
by artist: Marie-Ange Todorovitch
by artist: Michel Sénéchal
by artist: Stéphanie D'Oustrac
by artist: Yann Beuron
by artist: Les Musiciens du Louvre
in album: Offenbach: La Belle Hélène
  type: MusicAlbum
  date published: 2001-11-06
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ebeb1ac59cc185cc6627f151cdf175676ae3335fbaeb8aa31e30f0ec2805e50. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/GBAYC0003420.
  date published: 2026-07-31T09:54:03Z
audio: Offenbach: La Belle Hélène, Act 3: Dialogue. "Quelle tenue pour un augure !" (Pâris, Parthénis, Léœna, Oreste, Ajax I, Ajax II, Achille, Agamemnon, Ménélas, Hélène, Calchas, Chœur)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 151.061
  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: 0.636
  additional property: Energy
    type: PropertyValue
    value: 0.061
  additional property: Speechiness
    type: PropertyValue
    value: 0.531
  additional property: Acousticness
    type: PropertyValue
    value: 0.788
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.145
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.14
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.334
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: GBAYC0003420
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960384
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T09:54:03+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0003420
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960384
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960384
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T09:54:03+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Offenbach: La Belle Hélène, Act 3: Finale. "Elle vient ! C'est elle !" (Pâris, Parthénis, Léœna, Oreste, Ajax I, Ajax II, Achille, Agamemnon, Ménélas, Hélène, Calchas, Chœur)
type: MusicRecording
duration: PT4M35S
duration ms: 275266
explicit: false
by artist: Jacques Offenbach
by artist: Marc Minkowski
by artist: Alain Gabriel
by artist: Choeur des Musiciens du Louvre
by artist: Éric Huchet
by artist: Felicity Lott
by artist: Françoix Le Roux
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audio: Offenbach: La Belle Hélène, Act 3: Finale. "Elle vient ! C'est elle !" (Pâris, Parthénis, Léœna, Oreste, Ajax I, Ajax II, Achille, Agamemnon, Ménélas, Hélène, Calchas, Chœur)
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Offenbach: La Grande-Duchesse de Gérolstein, Act 1: "Voici le sabre de mon père" (Duchesse, All)
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by artist: Jacques Offenbach
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by artist: Felicity Lott
by artist: Les Musiciens du Louvre.Grenoble
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  date published: 2026-07-30T18:23:33Z
audio: Offenbach: La Grande-Duchesse de Gérolstein, Act 1: "Voici le sabre de mon père" (Duchesse, All)
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