Centralised crypto-coins are a code-based resource designed to be employed as an item of trade. Additional units may be created via mining. Any person is able to get involved by using their a device. Mining uses a large amount of hours and electricity, though. A powerful machine is also vital, to mine successfully. However, XRP is a centralised resource, which cannot be mined. A limited supply of units were created by the organisation and this number will not be exceeded.