it is a peer to peer blockchaim cryptocorrency and it is a development platform. It have innovative consensus algorithm a proof of important algorithm.All users of nem blockchain that have more than 10,000 XEM, such user has important score. Miners who have higher important score is laible to get reward for his or her mining. The POl system were design to encourage nem users. Not only to have XEM coin but also to do transactions with it.