This tiny, tamper-proof ID tag can authenticate almost anything
news.mit.edu
A cryptographic tag developed at MIT uses terahertz waves to authenticate items by recognizing the unique pattern of microscopic metal particles that are mixed into the glue that sticks the tag to the item’s surface.
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The original was posted on /r/tech by /u/Sariel007 on 2024-02-19 15:41:39.

Original Title: This tiny, tamper-proof ID tag can authenticate almost anything. MIT engineers developed a tag that can reveal with near-perfect accuracy whether an item is real or fake. The key is in the glue on the back of the tag.