A few weeks ago we announced Specular—an optimistic rollup with a novel EVM-native design—and were delighted to see the excitement and discussion stimulated by our previous thread around how best to design such systems. 1/10 🧵 2/ We’d like to clarify what we think are some of the key advantages of the EVM-native approach over other optimistic rollup approaches, including ongoing work by Optimism and Arbitrum that relies on a fraud proof system defined over a lower-level VM, such as MIPS or WASM.

1/ We are excited to announce Specular at #ConsensusAtSBC, the first *EVM-native* optimistic rollup (ORU). Specular provides stronger security and decentralization properties than existing EVM-equivalent ORUs. Let’s dig in. 1/N 🧵 2/ In the EVM-native ORU paradigm, fraud proofs are generated and verified at the EVM instruction-level. That is, the on-chain fraud proof verifier strictly enforces the Ethereum specification.