Community Nodes

Definition ∞ Community nodes are individual or group-operated computers that support a blockchain network by validating transactions and maintaining a copy of the ledger. These nodes are run by decentralized participants rather than a central entity, contributing to the network’s resilience, security, and decentralization. They verify the authenticity of transactions and blocks, ensuring the integrity of the blockchain. Their collective operation helps distribute network load and prevents single points of failure.
Context ∞ The importance of community nodes is a constant topic in discussions about blockchain decentralization and censorship resistance, particularly for networks like Bitcoin and Ethereum. A key debate revolves around incentivizing individuals to run these nodes, as their operation often incurs costs without direct financial reward, especially for non-mining or non-staking nodes. Future developments may involve more accessible and energy-efficient node software, alongside potential protocol changes to better reward community participation. The health and distribution of community nodes serve as a vital indicator of a blockchain’s true decentralization and its resistance to external control.