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Especially for an object designed for mass circulation, any secret information about such a coin would be found out through various destructive engineering tech
by kregasaurusrex 10y ago
Especially for an object designed for mass circulation, any secret information about such a coin would be found out through various destructive engineering techniques, and then the info would be in the wild anyway. Coins have been proven to work for the past millenia without any major changes and I don't see a space for innovation within it.
- madez 10y agoOne could replace a coin by a small circuit that represents a physically unclonable function and a cryptographic certificate by the state, saying that this is a valid coin. Make it look like a normal coin so people can trade by hand, but in any store interaction they could be checked.