Definition ∞ A Beacon Node is a specific type of validator client in certain blockchain networks, particularly those employing Proof-of-Stake consensus mechanisms. It is responsible for processing and validating new blocks and proposing them to the network. These nodes play a vital role in maintaining the security and operational integrity of the blockchain by participating in consensus.
Context ∞ Discussions around Beacon Nodes are prominent in the context of blockchain upgrades and network performance optimizations. Their efficient operation and security are paramount, and news often centers on improvements to their architecture, such as sharding implementations, or challenges related to validator participation and network stability.
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