Definition ∞ Quorum-Based Protocols are distributed systems that rely on a minimum number of participants, known as a quorum, to agree on a decision or validate an action. In blockchain networks, these protocols are used to achieve consensus, ensure data consistency, and maintain network security. Operations are only considered valid if a sufficient subset of nodes approves them. This mechanism provides fault tolerance and resistance to malicious behavior.
Context ∞ The design and implementation of Quorum-Based Protocols are fundamental to the security and resilience of many decentralized systems. Discussions often involve determining optimal quorum sizes, managing participant identities, and mitigating the risks of collusion or denial-of-service attacks. Research continues to refine these protocols to enhance their performance and robustness in dynamic network environments.
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