Overview
A full node stores the complete blockchain and validates all transactions independently. It provides the highest level of trust and security. Full nodes are the backbone of decentralization.
How It Works
A full node downloads the entire chain, verifies every block and transaction against consensus rules, and can reject invalid data. It serves data to light nodes and participates in consensus.
Why It Matters
Full nodes enforce network rules without trusting anyone, making censorship and fraud harder. Running one is an act of self-sovereignty. Their numbers measure a network's decentralization.
Related Concepts
Full Nodes relate to Nodes, Consensus, and Light Nodes. They are essential to Decentralization and trustless verification.