In this post, we share why we built Magi, and what’s in store for the future. Magi performs the same core functionality as the reference implementation (op-node) and works alongside an execution node (such as op-geth) to sync to any OP Stack chain, including Optimism and Base. Magi acts as the consensus client (often called a rollup client in the context of the OP Stack) in the traditional execution/consensus split of Ethereum – it feeds new blocks to the execution client in order to advance the chain. That’s why we’re excited to take our very first step into the Optimism Collective by releasing Magi, a blazing fast OP Stack rollup client written in Rust. They’re also a whole lot of fun to work on (thanks to some very detailed specifications ). Multiple independent client implementations can help ensure the safety and liveliness of the network. Just as client diversity is important for Ethereum it’s critically important for rollups. This effort isn’t limited to Ethereum L1. And fortunately, the openness of the ecosystem, along with a push for greater client diversity, has resulted in more clients and an increasingly more secure network. Ethereum’s switch to Proof of Stake, for example, drew attention to the potential risk of relying on a single client at any layer. In practice, we often see emerging points of centralization as potentially vulnerable – their failures can compromise an entire network. Decentralization is crypto’s defining promise: Networks that have no single point of failure are more secure and more resilient than their centralized counterparts.
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