A delegator is a type of node commonly used in proof-of-stake (PoS) blockchain networks. Delegators serve a variety of functions depending on the blockchain protocol they operate on, but they are most commonly used to assist full nodes or validator nodes, which are the primary nodes responsible for network consensus. Those who want to participate in consensus but do not want to run a full node can become delegator nodes and stake their coins/tokens with a public validator node—a process known as delegation—in exchange for a share of block rewards.