Blockchain Layer

Definition ∞ A blockchain layer represents a distinct architectural component within a blockchain network, designed for specific functions. Layer 1 constitutes the foundational protocol, managing core operations such as transaction validation and consensus. Layer 2 solutions are built upon Layer 1 to improve scalability and transaction throughput without altering the underlying security. These layers collaborate to support the overall functionality and performance of decentralized applications.
Context ∞ The current discourse surrounding blockchain layers centers on optimizing scalability and interoperability across different networks. A key discussion involves the effectiveness of various Layer 2 solutions, such as rollups and sidechains, in reducing transaction costs and increasing processing speeds. Future advancements will likely involve more seamless integration between layers and the emergence of Layer 3 protocols for specialized application logic.