Re:Show HN: Kong – Physical Cryptocurrency
by asdf21 on Tuesday December 10, 2019 @08:12PM
(#21758597)
You also can't tell if gold is real or gold plated, etc.
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Re:Show HN: Kong – Physical Cryptocurrency
by newguy1234 on Tuesday December 10, 2019 @08:54PM
(#21758857)
You can but you have to use a scientific instrument called an xrf meter.