L1 Architecture

Definition ∞ L1 architecture refers to the fundamental design and structure of a Layer 1 blockchain network. This includes its consensus mechanism, data storage methods, transaction processing capabilities, and native programming language. The architecture determines the network’s scalability, security, and decentralization properties. It forms the base layer upon which all other applications and Layer 2 solutions are built.
Context ∞ Discussions around L1 architecture are constant in crypto news, particularly concerning the “blockchain trilemma” of balancing security, scalability, and decentralization. Projects frequently announce upgrades or new designs aimed at improving transaction speeds or reducing fees. The performance and design choices of an L1 architecture significantly influence its adoption and the development of its ecosystem.