Validator Set

The group of active validators currently responsible for proposing blocks, attesting to the chain's state, and securing a Proof of Stake network. Validator sets can be fixed (as in some permissioned chains) or dynamic (changing each epoch based on staking deposits and withdrawals). Ethereum's validator set includes over 900,000 validators as of 2026. The size and distribution of the validator set directly impacts decentralization and censorship resistance — a larger, more geographically diverse set is harder to coerce or attack.