Tracy Dahl
type: MusicGroup
genre: minimalism
genre: opera
description: Tracy Elizabeth Dahl (born 13 November 1961) is a Canadian coloratura soprano who has performed in opera houses and on concert stages around the world. Alongside her performing career, Dahl teaches vo
popularity: 5
followers: 121
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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 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: 2026-06-15T23:55:46Z
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album: Delibes / Offenbach / Gluck: Songs for Coloratura Soprano
  type: MusicAlbum
  date published: 2000-01-01
album: Children's Songs - Rhymes, Reveries, Rimes
  type: MusicAlbum
  date published: 2008-01-01
track: Medley from "Snow White and the Seven Dwarfs" (Arr. C. Dragon, J. Blackton & K. Whitcomb)
  type: MusicRecording
  duration: PT12M14S
  duration ms: 734373
  explicit: false
  by artist: Frank Churchill
  by artist: Cincinnati Pops Orchestra
  by artist: Erich Kunzel
  by artist: Indiana University Singing Hoosiers
  by artist: Tracy Dahl
  by artist: Douglas Webster
  in album: A Disney Spectacular
    type: MusicAlbum
    date published: 1989-05-23
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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 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: Medley from "Snow White and the Seven Dwarfs" (Arr. C. Dragon, J. Blackton & K. Whitcomb)
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    additional property: Danceability
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    additional property: Loudness (dB)
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    additional property: Key Name
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      value: F
    additional property: Mode Name
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