Chih-Cheng Liang | Introducing Sparse Merkle Tree

Sat, Oct 2, 2021, 12:00 AM

Speaker intro Chih-Cheng Liang builds zero-knowledge proof applications on Ethereum. Talk description "Introducing Sparse Merkle Tree" Layer 2 technology centers around outsourcing the data storage from the decentralized L1 full nodes to a centralized L2 coordinator. The commitment scheme is the technology to achieve that while preserving security. In this talk, we introduce the Sparse Merkle Tree, a particular hash tree commitment that is popular among many L2 implementations and easy to reason. We will take a baby step to walk through the membership proving and updating, which gives the idea, the background, and contexts to understand an essential part of L2 design space.