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noun
A delegated validator is a trusted node in a Delegated Proof of Stake (DPoS) blockchain network that has been selected by token holders to validate transactions and produce new blocks on their behalf. Instead of every user participating directly in consensus, they delegate their voting power to a smaller group of validators.
Delegated validators are responsible for maintaining network security, uptime, and accurate record-keeping. In return, they may receive a portion of the block rewards, often shared with those who delegated their stake.
Blockchains such as EOS, TRON, and Cosmos utilize the delegated validator model to combine decentralization with high performance and scalability.