sha256-coinflip v1.1.0

sha256-coinflip

Cryptography coinflip inspired by MIT's Security and Cryptography (2020) lecture.
https://www.youtube.com/watch?v=tjwobAmnKTo

The problem?

You can't really play a game of heads & tails without a coin. Unless you use something like this and give your co-player a proof of your choice.