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A comment on Successful room temperature ambient-pressure magnetic levitation of LK-99. Parent comment

Re:Successful room temperature ambient-pressure magnetic lev... by orangepurple on Friday August 04, 2023 @06:54AM (#36998149)
USCIS stores a hash of your face when you enter and exit the United States. It's why they make you look at the camera.
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Re:Successful room temperature ambient-pressure magnetic lev... by almostnormal on Friday August 04, 2023 @09:10AM (#36999489)
A hash like a trapdoor, impossible to get properties of the face back? Or a hash in the sense of not a picture but just some important parameters, but still reproducible?
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