Definition ∞ Dynamic committee reconfiguration describes a blockchain protocol feature that regularly alters the set of validators or participants responsible for block production or consensus. This process enhances network decentralization and security by preventing long-term collusion among a fixed group. It involves algorithms that randomly select or rotate committee members at predefined intervals.
Context ∞ This mechanism is crucial for many sharded or proof-of-stake blockchains aiming to improve scalability and attack resistance. News often covers updates to these algorithms, particularly concerning their fairness, efficiency, and resilience against Sybil attacks. The effectiveness of such reconfigurations directly impacts the long-term viability and security claims of a protocol.
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