Wificoin first installs its open source operating system onto a Wifi router. When new users try to connect to it, they get 100 Wificoin, which they can spend for 1 megabyte each of wifi access. If they need more, they can either buy Wificoin with Bitcoin or Ethereum, or they can install the software on a router they own which earns them Wificoin each time someone uses it
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https://techcrunch.com/2017/09/17/wificoin/
https://devpost.com/software/wificoin
