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type: MusicGroup
genre: opera
popularity: 32
followers: 2545
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additional property: OTSVerificationAPI
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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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album: Les grandes heures du Bolchoï, Vol. 2: Les plus grandes valses
  type: MusicAlbum
  date published: 1999-06-01
album: Les grandes heures du Bolchoï, Vol. 1: Les plus grands choeurs
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  date published: 1999-06-01
album: Les Grands Choeurs d'Opéras, Vol. 2
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  track: Symphonie No. 9 in D Minor, Op. 125 - "Choral": Hymne à la joie (Extrait du 4ème mouvement)
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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
    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-13T17:43:59Z
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album: Les Grands Choeurs d'Opéras, Vol. 1
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album: Khachaturian: Spartacus (Les Etoiles du Bolchoï)
  type: MusicAlbum
  date published: 2007-11-15
album: Tchaikovsky: Le Lac des Cygnes (Les Etoiles du Bolchoï)
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  date published: 2007-11-15
  track: Le Lac des Cygnes, Op.20: Acte I, Scène 1
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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
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      date published: 2026-07-03T23:28:02Z
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  track: Le Lac des Cygnes, Op.20: Acte I, Scène 2
  track: Le Lac des Cygnes, Op.20: Acte I, Pas de Trois
  track: Le Lac des Cygnes, Op.20: Acte IV, Danse des petits cygnes
  track: Le Lac des Cygnes, Op.20: Acte II, Scène 2
  track: Le Lac des Cygnes, Op.20: Acte IV, Scène Finale
album: Une Nuit au Bolchoï, Vol. 1
album: Une Nuit Au Bolchoï, Vol.2
album: Les Plus Grands Ballets, Vol. 2
album: Les Plus Grands Opéras, Vol. 1
album: Les Plus Grands Ballets, Vol. 1
album: Les Plus Grands Ballets, Vol. 3
album: Les Plus Grands Opéras, Vol. 2
album: Les Plus Grands Opéras, Vol. 3
album: Chtchedrine: Anna Karenine (Les Étoiles du Bolchoï)
album: Glinka: Ivan Soussanine (Les Etoiles du Bolchoï)
album: Leoncavallo: Paillasse (Les Etoiles du Bolchoï)
album: Adam: Giselle (Les Etoiles du Bolchoï)
album: Les chefs-d'oeuvre des Étoiles du Bolchoï, Vol. 2
album: Les chefs-d'oeuvre des Étoiles du Bolchoï, Vol. 1
album: Tchaikovsky: Le Lac des cygnes

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Valence (Positivity)
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Loudness (dB)
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Le Lac des Cygnes, Op.20: Acte I, Scène 2
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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
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  date published: 2026-07-18T22:59:44Z
audio: Le Lac des Cygnes, Op.20: Acte I, Scène 2
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Le Lac des Cygnes, Op.20: Acte I, Pas de Trois
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  date published: 2007-11-15
genre: opera
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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
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  date published: 2026-07-05T22:14:35Z
audio: Le Lac des Cygnes, Op.20: Acte I, Pas de Trois
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Le Lac des Cygnes, Op.20: Acte IV, Danse des petits cygnes
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additional property: OTSHash
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-05T10:01:46Z
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Une Nuit au Bolchoï, Vol. 1
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Une Nuit Au Bolchoï, Vol.2
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Les Plus Grands Ballets, Vol. 2
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Les Plus Grands Opéras, Vol. 1
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Les Plus Grands Ballets, Vol. 1
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Les Plus Grands Ballets, Vol. 3
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date published: 2007-11-22

Les Plus Grands Opéras, Vol. 2
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Les Plus Grands Opéras, Vol. 3
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Chtchedrine: Anna Karenine (Les Étoiles du Bolchoï)
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date published: 2007-12-26

Glinka: Ivan Soussanine (Les Etoiles du Bolchoï)
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date published: 2008-11-12

Leoncavallo: Paillasse (Les Etoiles du Bolchoï)
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date published: 2008-11-12

Adam: Giselle (Les Etoiles du Bolchoï)
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Les chefs-d'oeuvre des Étoiles du Bolchoï, Vol. 2
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Les chefs-d'oeuvre des Étoiles du Bolchoï, Vol. 1
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Tchaikovsky: Le Lac des cygnes
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