Definition ∞ A committee mechanism in distributed ledger technology involves selecting a smaller, representative group of nodes to perform specific tasks, such as transaction validation or block production. This approach aims to improve system efficiency and scalability compared to requiring all nodes to participate in every decision. The selection process often incorporates randomness or reputation to prevent centralization. It enhances processing speed and resource utilization.
Context ∞ Committee mechanisms are a frequent topic in discussions about optimizing blockchain performance and security, particularly for high-throughput networks. Key debates address the balance between decentralization and efficiency, along with the resilience of these committees to malicious attacks. Future advancements aim to refine committee selection algorithms to bolster security while maintaining high levels of throughput.
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