Mantle V2 is a layer 2 (L2) scaling solution for Ethereum that uses fraud proofs instead of validity proofs for its security. The protocol aims to provide low transaction fees and high throughput while maintaining full EVM compatibility. Mantle V2 is built on top of Ethereum using the OP Stack and therefore shares many similarities with Optimism. This audit particularly focuses on its L2 execution client which has been forked from Optimism's op-geth repository. While changes have been made in...