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There was some coin if I recall which instead of hashing POW it did some type of "Folding" but I forget what it was called. However since the value of the coin was low, nobody wanted to mine it. It was a good idea though.
https://banano.cc/that looks legit....
Banano actually is legit but its just a clone of Nano with a kind of a Joke/Meme theme poking fun at some of the past scams in crypto. If you scroll down on the banano site you will see it says "Inspired by the industry's least trusted masterminds" which is pretty funny to read all the people they list.
Anyways you can mine/earn Banano by folding for science, so at least you are doing some good if the project goes away.