L2 Node Roles

Definition ∞ L2 Node Roles refer to the distinct functions performed by nodes operating within a Layer 2 scaling solution built on top of a base blockchain. These roles are specialized, such as transaction sequencing, data availability provision, or cryptographic proof generation. They differ from the general validation tasks performed by nodes on the underlying Layer 1 network.
Context ∞ Understanding these specialized roles is essential for assessing the decentralization, security, and efficiency characteristics of various Layer 2 networks. The distribution of these roles and the incentives provided to operators directly impact the scalability and integrity of the overall system. Current research focuses on further decentralizing these roles to enhance censorship resistance.