Elaine Douvas
type: MusicGroup
genre: classical-oboe
description: Elaine Douvas is an American oboist who served as Principal Oboe of the Metropolitan Opera Orchestra in New York City from 1977 until 2024. She has been Instructor of Oboe at The Juilliard School sinc
popularity: 3
followers: 150
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-21T07:29:20Z
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album: Oboe Divas!
  type: MusicAlbum
  date published: 2008-11-04
  track: Lakmé: "The Flower Duet"
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    by artist: Léo Delibes
    by artist: Emily Pailthorpe
    by artist: Elaine Douvas
    by artist: Elizabeth Martyn
    in album: Oboe Divas!
      type: MusicAlbum
      date published: 2008-11-04
    genre: classical
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-29T12:41:21Z
    audio: Lakmé: "The Flower Duet"
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      additional property: Instrumentalness
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album: Elaine Douvas: Oboe
  type: MusicAlbum
  date published: 2003-05-01
  track: Sonatine: I. Modéré
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    duration: PT4M29S
    duration ms: 269253
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    by artist: Maurice Ravel
    by artist: Elaine Douvas
    by artist: Erik Nielsen
    in album: Elaine Douvas: Oboe
      type: MusicAlbum
      date published: 2003-05-01
    genre: classical
    genre: impressionism
    genre: neoclassicism
    genre: post-romantic-era
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T03:20:19Z
    audio: Sonatine: I. Modéré
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      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
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Acousticness
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Instrumentalness
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value: 0.892

Liveness
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value: 0.12

Valence (Positivity)
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value: 0.135

Loudness (dB)
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Key Name
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Mode Name
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value: Minor