Comment by resonious
5 hours ago
If "ledger on card" interests you, then you might enjoy Japan's FeliCa cards. They store balance locally on the card so you can pay very quickly, no network required.
5 hours ago
If "ledger on card" interests you, then you might enjoy Japan's FeliCa cards. They store balance locally on the card so you can pay very quickly, no network required.
Do these cards solve the electronic cash problem (in a completely different way than cryptocurrencies)? What I mean is that
- Are the card readers special/trusted issued by bank/govt in some way? Or you can transfer money from one card to another yourself fully offline?
- Is there any requirements that the transfers have to be eventually communicated to the bank by one of the parties to be fully resolved?
- Has someone managed to create fake cards with fake money in it, or this is impossible by design?