Overview
A light node stores only block headers and relies on full nodes for transaction data. It offers cheaper, faster participation with less storage. Light nodes are common in wallets and mobile apps.
How It Works
Light nodes download and verify block headers, trusting full nodes for transaction details. They use Merkle proofs to verify specific transactions. This reduces resource requirements dramatically.
Why It Matters
Light nodes make blockchain access practical for low-resource devices and improve decentralization. They trade some trust for efficiency. They are essential for scalable user adoption.
Related Concepts
Light Nodes contrast with Full Nodes and relate to Block Headers and Merkle Proofs. They enable Light-Client access.