Orchestre Symphonique Et Choeurs De L'Opéra National Du Théâtre Royal De La Monnaie (Brüssel)
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followers: 2
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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: 2026-06-17T08:11:48Z
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track: Les Contes d'Hoffmann, Act II: Les oiseaux dans la charmille (Olympia/Choeurs)
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  by artist: Jacques Offenbach
  by artist: Luciana Serra
  by artist: Brussels National Opera Chorus
  by artist: Orchestre Symphonique de l'Opéra National, Bruxelles
  by artist: Sylvain Cambreling
  by artist: Orchestre Symphonique Et Choeurs De L'Opéra National Du Théâtre Royal De La Monnaie (Brüssel)
  in album: Offenbach: Les Contes d'Hoffmann
    type: MusicAlbum
    date published: 1988
  genre: classical
  genre: german-romanticism
  genre: late-romantic-era
  genre: french-opera
  genre: french-romanticism
  genre: operetta
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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
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    date published: 2026-07-06T07:53:57Z
  audio: Les Contes d'Hoffmann, Act II: Les oiseaux dans la charmille (Olympia/Choeurs)
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Loudness (dB)
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    additional property: Key Name
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track: Les Contes d'Hoffmann, Act II: Les oiseaux dans la charmille (Olympia/Choeurs)
  type: MusicRecording
  duration: PT5M36S
  duration ms: 336400
  explicit: false
  by artist: Jacques Offenbach
  by artist: Luciana Serra
  by artist: Brussels National Opera Chorus
  by artist: Orchestre Symphonique de l'Opéra National, Bruxelles
  by artist: Sylvain Cambreling
  by artist: Orchestre Symphonique Et Choeurs De L'Opéra National Du Théâtre Royal De La Monnaie (Brüssel)
  in album: Offenbach: Les Contes d'Hoffmann
    type: MusicAlbum
    date published: 2006-06-26
  genre: classical
  genre: german-romanticism
  genre: late-romantic-era
  genre: french-opera
  genre: french-romanticism
  genre: operetta
  isrc code: GBAYC8600576
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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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35a391c18dce893f4f2ef86fb1cbba1cdb79a6c4ad4d834bf557f0571bcd510. 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/GBAYC8600576.
    date published: 2026-07-08T03:22:41Z
  audio: Les Contes d'Hoffmann, Act II: Les oiseaux dans la charmille (Olympia/Choeurs)
    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: Instrumentalness
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    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
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Energy
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Speechiness
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value: 0.063

Acousticness
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value: 0.945

Instrumentalness
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Liveness
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value: 0.124

Valence (Positivity)
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value: 0.227

Loudness (dB)
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value: -24.644

Key Name
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value: G

Mode Name
type: PropertyValue
value: Major