Base Layer (Layer 1)
Protocol
Main chain that provides security, data availability, and settlement.
The base layer is the main chain that holds the canonical state. It secures block production and stores data so anyone can verify it. Layers like rollups and appchains extend the system by moving most work off the base layer while still using it for security and settlement.
Frequently asked questions
What happens on the base layer?
It secures consensus, stores data, and settles transactions. Other layers build on it to scale or add features.How do rollups use L1?
They post data or proofs to L1 so users can trust results. This lets them scale while inheriting L1 security.Why not put everything on L1?
Block space is limited and fees can be high during demand spikes. Layers help spread work while keeping safety.