4 ms·

I already thought about that idea. I am not sure, though, whether this "randomizes" the banknotes sufficiently to avoid more advanced tracking algorithms, since

I already thought about that idea. I am not sure, though, whether this "randomizes" the banknotes sufficiently to avoid more advanced tracking algorithms, since the banknotes stay in your social circle.

petre 8y ago
You can exchange with strangers but then you'd have to use an UV lamp to check the banknotes for fakes.