N is a new cryptocurrency based on Proof Of Capacity, with an upgraded version of POA mining, with a perfect economic model and consensus algorithm; using the hard disk as a consensus participant, reducing the consumption of cryptocurrency power resources; N mining reduction Participation in the threshold, making its production mode more decentralized, more secure and reliable; relative to POW mining, POA mining is more green and energy efficient, low power consumption, low noise, no heat, anti-ASIC; reduce the consensus credit cost, Enhance the security of consensus strength, breadth and consensus structure.