Definition ∞ Blockchain node liveness describes the operational status of individual computers participating in a blockchain network. A live node actively synchronizes with the network, validates transactions, and propagates blocks, contributing to the network’s ongoing functionality. This continuous operation ensures the blockchain remains available and processes information without interruption. Maintaining high node liveness is critical for the network’s resilience and its ability to achieve consensus.
Context ∞ Discussions about blockchain node liveness often concern network stability, decentralization, and resistance to censorship. A high percentage of active, well-connected nodes indicates a robust and healthy network, while a decline can signal potential vulnerabilities or reduced operational capacity. Monitoring node liveness helps assess the overall health and security posture of a blockchain, impacting confidence in its long-term viability.
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