Masternodes are node that helps a network run and operate at an effective level. Depending on the source of the blockchain, a masternode has to meet certain standards in order for the blockchain to recognize it as a node. The specific requirements under the CATScoin blockchain can be found on detailed Github and in the rewardtable. Each masternode has equal importance in the blockchain and the rewards are spread out evenly. Once a masternode receives a reward it is then moved to the end of the queue, which creates an systematic and even distribution amongst masternode holders.