Layer-2 Network

Definition ∞ A Layer-2 network is a secondary framework or protocol built on top of an existing blockchain, known as the Layer-1 network. Its primary purpose is to enhance the scalability and speed of transactions. Layer-2 solutions process transactions off the main chain, reducing congestion and fees on the base layer.
Context ∞ Layer-2 networks are a pivotal area of development in the cryptocurrency space, directly addressing the scalability limitations of many established blockchains. Ongoing research and implementation focus on various approaches, including state channels, sidechains, and rollups, each with distinct trade-offs in security and performance. Discussions frequently center on their adoption rates, security assurances, and their capacity to support a broader range of decentralized applications.