PPY (Peerplays coin) is the native asset of the Peerplays network. Staking this asset provides voting power for voting on witnesses, SONs, advisors, and more. In addition, all exchanges that take place in the Peerplays Dex are based on exchanging assets with PPY. Currently a portion of all transaction fees within Peerplays is redistributed back to PPY holders as rewards, based on their amount of staked PPY.