Before revision: There are some alternative Cryptocurrency systems which claim that they are based on PoS are actually based on PoSTW which denotes the Proof of Stake(coin), Time(day) and Work(hashing), while the other pure PoS Cryptocurrency systems are actually centralized. In this paper we propose a new framework of Cryptocurrency system .
After revision: We give an explicit definition of decentralization and show you that decentralization is almost impossible for the current stage. We propose a new framework of Cryptocurrency system .