Betsy Jolas
type: MusicGroup
genre: contemporary-classical
description: Elizabeth MacDonald Jolas (born 5 August 1926) is a French and American composer. Life and career Jolas was born in Paris on 5 August 1926. Her mother, the American translator Maria McDonald, also st
popularity: 5
followers: 495
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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
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  date published: 2026-06-16T20:07:57Z
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album: Jolas: B for Betsy
  type: MusicAlbum
  date published: 2012-10-17
album: Jolas: Ventosum Vocant
  type: MusicAlbum
  date published: 2006-01-01
album: Her Sonic Realm - The Creative Legacy of Women in Music
  type: MusicAlbum
  date published: 2026-03-09
track: Lassus-Fantaisie: Ô doux parler
  type: MusicRecording
  duration: PT9M16S
  duration ms: 556706
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  by artist: Betsy Jolas
  by artist: thélème
  by artist: XASAX
  by artist: Xasax
  in album: Mutations. Les chimères de Clément Janequin
    type: MusicAlbum
    date published: 2020-05-15
  popularity: 1
  genre: contemporary-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: 2026-07-08T03:20:19Z
  audio: Lassus-Fantaisie: Ô doux parler
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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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: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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      value: Eb
    additional property: Mode Name
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      value: Minor