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A comment on Elsevier embeds a hash in the PDF metadata that is unique for each download. Parent comment

Re:Elsevier embeds a hash in the PDF metadata that is unique... by steerablesafe on Thursday January 27, 2022 @06:03AM (#30098941)
Well sure. Try not to download them at the same time.
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Re:Elsevier embeds a hash in the PDF metadata that is unique... by hiq on Thursday January 27, 2022 @08:03AM (#30100015)
Problem is you only have to fail once to leak information, and there are only a finite number of bits of information you can leak before your identity is known.
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