Centralised cryptocurrency is a code-based resource created to be used as an item of trade. Additional coins may be found via mining. Everyone may get involved if they have a a device. Mining requires a large amount of hours and electrical energy, however. A fast machine is also vital, to mine profitably. Conversely, XRP is a centralised resource, which can't be mined. A fixed supply of tokens were generated by the company and this number will not be exceeded.