Standard crypto-coins are a code-based resource created to be used as an apparatus of trade. New crypto-coins can be added via mining. Anyone can do this if they have a a computer. Mining requires a great deal of time and electrical energy, however. A high-powered computer is also vital, to do this effectively. However, XRP is a centralised coin, which cannot be mined. A limited amount of coins were made by the firm and this limit will never be added to.