Definition ∞ Network Nodes are individual computers or devices that participate in a distributed ledger network, such as a blockchain. Each node stores a copy of the ledger, validates transactions, and contributes to the network’s overall security and consensus. The number and distribution of nodes are key indicators of a network’s decentralization and resilience.
Context ∞ The operational status and geographical distribution of Network Nodes are frequently discussed in relation to blockchain network health and security. Debates often center on the incentives for running nodes, the impact of node concentration on decentralization, and the potential vulnerabilities associated with network topology. Monitoring node activity provides critical insights into the functioning of a given blockchain.