Rollups

Definition ∞ Rollups are scaling solutions that execute transactions off a primary blockchain but post transaction data back to the main chain. This approach enhances transaction throughput and reduces fees while inheriting the security of the base layer. They are a prominent category of Layer-2 scaling technologies.
Context ∞ The competitive landscape of rollup solutions, including optimistic rollups and zero-knowledge rollups, is a dynamic area of development and investment. News often centers on the technological advancements, adoption rates, and interoperability between different rollup networks. The ongoing evolution of rollups is seen as pivotal for the broader scalability and usability of blockchain ecosystems.