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In response to
"Seems harder on a 3d printer. A light sanding would remove anything, right? -- nm"
by
Ender
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Nope. The outlined method I saw says the code builds structures within the object that can be detected, probably through some type of imaging (xray,
Posted by
TWuG
Aug 1 '18, 08:26
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MRI, etc) and would appear in multiple places. Could be specific shapes, such as letters or symbols, or a barcode, or some other group of identifying marks.
It's worth noting that there are apps designed to defeat copier and printer steganography, so the same would eventually be true for 3D printers.
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