Definition ∞ Blacklisting nodes involves identifying and excluding specific network participants from interaction within a blockchain system. This action typically occurs due to malicious conduct, security compromises, or non-compliance with protocol rules or regulatory mandates. The primary goal is to preserve network integrity and prevent undesirable activities from impacting the system.
Context ∞ The practice of blacklisting nodes generates discussion concerning decentralization and censorship resistance, fundamental principles of many blockchain networks. Centralized entities or protocol maintainers sometimes implement such measures, leading to concerns about excessive control over network operations. Future considerations will address balancing network security with preserving the open and permissionless nature of blockchain technology.
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