Tales of a builder: reversing 0x78e111f6, the infamous solidity signature of an MEV bot

I started a small but interesting journey of building a bot for some MEV arbitrages in Ethereum. Through my project under Teal Finance on a DeFi options price aggregator, Rainbow, I explore and interact with various DeFi protocols. This is how I stumble upon 0x78e111f6, this mysterious function signature that is present in a lot of intriguing MEV transactions. This is my story of trying to uncover part of that mystery....

 · JYZ