Isomorphic Rollup
Also known as: EVM-Compatible Rollup, Mirror Execution Layer, L1-Compatible Rollup
A rollup architecture where the Layer 2 environment mirrors Layer 1 execution logic, enabling seamless compatibility and composability.
Isomorphic rollups are a class of Layer 2 scaling solutions where the execution environment replicates that of the Layer 1 chain, including EVM compatibility and tooling. This means smart contracts written for Ethereum can run on the rollup without modification. Isomorphic rollups ensure consistency, enhance developer experience, and improve cross-layer composability. They facilitate state synchronization and shared security between layers. Projects like Optimism and Arbitrum implement elements of this architecture, while future designs aim for deeper state and opcode equivalence. It’s a promising approach for scaling without sacrificing UX or developer tooling.