$CFX Conflux (CFX) is a hybrid blockchain with proof of work/proof of stake that is permissionless. Initially, it was a proof of work (PoW) blockchain, and in 2022, Conflux completed an upgrade that added a proof of stake (PoS) component, known as the Hydra upgrade. This advancement allowed CFX token holders to earn rewards by staking their tokens in the PoS system. $CFX