Marjorie Main
type: MusicGroup
description: Mary Tomlinson (February 24, 1890 – April 10, 1975), professionally known as Marjorie Main, was an American character actress and singer of the Classical Hollywood period, best known as a Metro-Goldwy
popularity: 3
followers: 31
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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: 2026-06-16T18:47:23Z
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track: On the Atchison, Topeka, and the Santa Fe (from "The Harvey Girls") - 2006 Remaster
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  by artist: Judy Garland
  by artist: Cyd Charisse
  by artist: Virginia O'Brien
  by artist: Marjorie Main
  by artist: Ray Bolger
  by artist: Benny Carter
  in album: That's Entertainment (The Ultimate Soundtrack Anthology of MGM Musicals)
    type: MusicAlbum
    date published: 2006-04-26
  popularity: 5
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-06T06:56:49Z
  audio: On the Atchison, Topeka, and the Santa Fe (from "The Harvey Girls") - 2006 Remaster
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