I researched crypto currency’s awhile back. It is pretty mathematically complex. I didn’t understand most of it. From what I understand, crypto currency’s exist on a world wide network of mostly private computers that process crypto “transactions”. These transactions are the movement of crypto currency. These private computers process complex mathematical equations necessary to maintain the security of the currency.
The private computer owners get paid in crypto currency for processing transactions on their computers. So more money is “printed” daily.
The crypto currency is backed by nothing, but then again so is the dollar…..