Definition ∞ A validator list is a compilation of approved entities responsible for verifying transactions and maintaining the integrity of a blockchain network. In proof-of-stake (PoS) systems, these validators are selected based on their staked cryptocurrency and are responsible for proposing and confirming new blocks. Their role is critical for network security, decentralization, and consensus. The list ensures that only authorized and reliable participants contribute to the blockchain’s operation.
Context ∞ Crypto news often refers to validator lists in discussions about the security, decentralization, and governance of various proof-of-stake blockchains. Debates frequently concern the concentration of stake among validators and its implications for network resilience. The evolution of validator selection mechanisms and the decentralization of these lists are ongoing topics of interest within the blockchain community.