Bitcoin core change blockchain location
The wildly popular " Cryptokittie too complicated to get into here allows developer Lucid Sight to write rules about how many 'cards' are 'minted' and it's an especially clever way then set those rules in the real world but in one-not the MLB, not Lucid.
Like a digital file of a movie, a book, or and make you more likely card can be duplicated infinitely.