María Grand
type: MusicGroup
genre: free jazz
description: María Kim Grand (born 1992, Switzerland) is a tenor saxophonist, recording artist, bandleader, vocalist, composer, visual artist, and educator. She has been based in New York City since 2011. Grand h
popularity: 7
followers: 926
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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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album: Magdalena
  type: MusicAlbum
  date published: 2018-05-11
album: Creation: The Joy of Being
  type: MusicAlbum
  date published: 2021-03-26
album: Whabri
  type: MusicAlbum
  date published: 2021-04-09
album: Now, Take, Your, Day
  type: MusicAlbum
  date published: 2021-04-23
album: Reciprocity
  type: MusicAlbum
  date published: 2021-05-14
album: See
  type: MusicAlbum
  date published: 2024-02-16
album: Anohin
  type: MusicAlbum
  date published: 2024-03-01
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    by artist: María Grand
    in album: Anohin
      type: MusicAlbum
      date published: 2024-03-01
    genre: free jazz
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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: 2026-07-15T12:19:14Z
    audio: Anohin
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Danceability
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      additional property: Energy
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      additional property: Speechiness
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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: C#
      additional property: Mode Name
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album: Guerrero Hundido
  type: MusicAlbum
  date published: 2024-03-15
album: Anohin
  type: MusicAlbum
  date published: 2024-03-29