Re:The "email is authentication" pattern
by presentation on Sunday September 08, 2024 @03:12AM
(#41478746)
This is what transit payment cards in Japan at least do, you can tap to pay most places but there’s a cap of 20k yen you can add to your card, so there’s a cap to how much you can lose.
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Re:The "email is authentication" pattern
by notpushkin on Sunday September 08, 2024 @08:19PM
(#41484401)
I love how these cards work in Japan. There’s a bunch of different operators but they all work across the country – for example, if you buy a KITACA in Sapporo, you can use it in Tokyo and Osaka and anywhere else. And of course you can use them in a bunch of places, from all the transit options to vending machines and coin lockers on stations to konbini everywhere and even some restaurants.
(Of course it’s a bit more complicated: https://commons.wikimedia.org/wiki/File:ICCard_Connection_en... – but still impressive nonetheless!)
