POSDAO is designed to provide a decentralized, fair, and energy efficient consensus for public chains. The algorithm works as a set of smart contracts written in Solidity. It is implemented with a general purpose BFT consensus protocol. Validators are incentivized to behave in the best interests of a network through a configurable reward structure. The algorithm provides a Sybil control mechanism for managing a set of validators, distributing rewards, and reporting and penalizing malicious validators. How it works? Participants in POS protocols stake Lycan Coins(LYCs), to protect the network and achieve agreement regarding blockchain transactions. LYC is the native coin of Lycan. LYC is used as DPOS staking coins, where coin holders can participate as validators or delegators in the consensus process on the Lycan network. They can earn rewards (either block rewards or transactional rewards) based on their participation. This provides an opportunity for coin holders to convert any number of current holdings into staking coins, which in turn earn reward-based dividends.