Client (Blockchain Client)
Also known as: Blockchain Node Software, Chain Client, Network Client
Software that allows users or nodes to interact with a blockchain network, execute transactions, and validate data.
A blockchain client is an implementation of a node that participates in a blockchain network. It can send transactions, maintain a local copy of the ledger, and validate blocks and state transitions. Clients differ by programming language, consensus implementation, and feature support. For example, Ethereum has Geth (Go), Nethermind (.NET), and Besu (Java). Clients can operate in different modes: full nodes, light clients, or archive nodes. The diversity of clients strengthens decentralization and fault tolerance, ensuring the network remains robust and censorship-resistant.