In people's impression, almost all OP Rollups have not had any fraudulent proof in the production environment, but fraudulent proof is like the role of a son to a rural Chinese family for Rollups, which can be ignored but cannot be ignored. MegaETH utilizes the existing technical paradigms of Rollup state verification fraud proof and ZK validity proof, and innovates a new paradigm using @ RiscZero's ZK Prover to generate ZKP (ZK proof) and EigenDA's data availability layer: ZK fraud proof. The challenger utilizes RiscZero to provide off chain computing capabilities to perform ZK calculations on the Rollup historical state stored in EigenDA. After detecting illegal states, they only need to submit the corresponding ZKP to the verification smart contract deployed on the Ethereum mainnet (acting as the settlement layer) for verification. The entire process does not require several days of reconciliation based interaction between the Rollup Proposer and the challenger, as in fraud proof, nor does it require ZKP and mainnet smart contract verification to be generated for each batch, as in ZK validity proof.