Nominators

Nominators are individuals or entities that participate in a specific type of consensus mechanism called "Proof-of-Stake" (PoS). In a PoS consensus mechanism, instead of validating transactions and creating new blocks through solving complex mathematical problems as in the case of Proof-of-Work(PoW), validators are chosen to create new blocks and validate transactions based on the number of coins they hold and are willing to "stake" as collateral.

Nominators are the ones who "nominate" the validators they trust to participate in the consensus mechanism. They do this by "staking" a portion of their own coins to the validator. The more coins a nominator stakes to a validator, the more likely that validator will be selected to create new blocks and validate transactions. In return for "staking" their coins to validators, nominators typically receive a portion of the rewards generated by the validator for creating new blocks and validating transactions.

Nominators play a crucial role in a PoS consensus mechanism, as they are responsible for selecting and supporting validators who will maintain the integrity of the blockchain network. It's important to note that by nominating a validator, nominators also take on some of the risks associated with the validator's actions, including penalties for misbehavior.