Layer2

Definition ∞ Layer 2 refers to secondary frameworks or protocols built on top of an existing blockchain network, known as Layer 1. These solutions are designed to enhance transaction speed and reduce costs by processing transactions off the main chain, while still leveraging the security of the underlying Layer 1. This approach is crucial for scaling blockchain networks to handle a greater volume of users and transactions.
Context ∞ Layer 2 scaling solutions are a primary focus in current blockchain development, with ongoing advancements in technologies like rollups (optimistic and zero-knowledge) and state channels. Debates frequently address the optimal design for these solutions, their security implications, and their effectiveness in supporting a broad range of decentralized applications and user activity.