Consensus Node

Definition ∞ A consensus node is a participant in a decentralized network responsible for verifying transactions and blocks, then agreeing on the validity and order of these additions to the blockchain. These nodes run the network’s protocol software and maintain a copy of the distributed ledger. Their collective agreement, achieved through a specific consensus mechanism, ensures the integrity and immutability of the blockchain. Without sufficient consensus nodes, a decentralized network risks centralization and security vulnerabilities.
Context ∞ The performance and distribution of consensus nodes are frequently discussed in crypto news, especially concerning network health and decentralization. A robust and geographically dispersed set of nodes strengthens a blockchain’s resilience against attacks and censorship. Future developments focus on increasing node participation and optimizing consensus algorithms to enhance transaction throughput and energy efficiency. The operational status of these nodes directly impacts network stability and transaction finality.