Do we really need to generate more petrochemical waste so we can have neat little hardware tokens?

the paper: https://www.cell.com/chem/fulltext/S2451-9294(25)00161-5?_re...

Also perhaps my reading comprehension has suffered over the past years, but it seems there is no challenge-response component to this? To my knowledge that's the only way this could be airtight.

Cool tech. Don’t put a password in something that can be read by anyone with a scanner though.

Terrible application but exciting tech.

It's a new form of information storage using very cheap substances. It's only a few dozen bytes for now but it's still cool to see fundamental research like this take place.