Key Takeaways

• This report was written with Eddy and Daniel from Sooho. Also special thanks to Clara from M3TA Labs for building the amazing data dashboard.

• There are many zkEVM projects (i.e. zkSync Era, Scroll, Polygon zkEVM, Starknet, Kroma, Linea) being built on Ethereum to scale the blockchain's largest ecosystem in a secure manner. This space has seen rapid advancements in the past year, both technically and from a business perspective, with the expansion of rollups leading to services like Roll-up-as-a-Service.

• One of the players in this space is zkSync Era, which focuses on providing open-source code and has been transparent about their development. Also, Matterlabs’ next milestone is improving the codebase but also launching ZK-Stack to provide projects to launch their own rollups. This movement can be observed as companies like GRVT are preparing to launch a hybrid exchange using ZK-Stack. However, when trying to delve into the architecture of zkSync Era, it can be quite difficult to understand.

• As I participated in Code4rena's zkSync Era audit and worked with Sooho to analyze its architecture, we have written this developer report to provide a high-level understanding of zkSync Era's architecture.