Technically, Litecoin, which was Bitcoin with some parameters tweaked (like more frequent blocks). Then later they also removed the supply cap, which is a pret

Technically, Litecoin, which was Bitcoin with some parameters tweaked (like more frequent blocks). Then later they also removed the supply cap, which is a pretty fundamental change from the premise of bitcoin, so it’s no longer a trivial copy, I would say. https://en.wikipedia.org/wiki/Dogecoin#Currency_supply https://en.wikipedia.org/wiki/Dogecoin#Currency_supply