Masternodes will receive rewards from two sources, the network masternode fee and part of the marketplace transaction fees. The network masternode fee consists of 1 Pirl per block, and is distributed to active masternodes every 24 hours for the blocks generated during that period. The Market place fee comes from successful transactions and listing fees taking place on the marketplace. A precentage of this fee will also be distributed to active masternodes. Both these rewards are aimed at maintaining a stable network long term.