Writings

We’ve developed a platform for performance, programmability, and decentralization extensions for Rollups. It is powering the upcoming Unichain.

Today, we are announcing Rollup-Boost, a verifiable block building platform for rollups, enabled by Trusted Execution Environments (TEE) technology. Rollup-Boost was co-designed with Uniswap Labs and OP Labs, and its first deployment powers the upcoming Unichain, enabling fast confirmation times, strong user guarantees, and MEV internalization for the next generation of Defi apps.

Wallets are the gateway to Web3, serving as essential portals for users to send and receive messages, manage funds, and interact with blockchain applications. As a critical piece of blockchain infrastructure, wallets significantly shape users' Web3 experiences.

The wallet ecosystem is diverse, with providers offering varied products and services through different mechanisms. As wallet providers strive for sustainability and diversification, their operational models are evolving, creating new dynamics between users, applications, and the underlying blockchain infrastructure.

Our report aims to illuminate the current state of wallets on Ethereum, building upon the research conducted by orderflow.art.

This article examines the application of Fully Homomorphic Encryption (FHE) in the Maximal Extractable Value (MEV) space. Our approach allows searchers to blindly backrun user transactions using FHE. This prototype demonstrates how a searcher can compute the future price of a UniswapV2 pool over a user transaction, keeping it encrypted throughout the process. Although this method is not currently practical for deployment, it serves as a foundation for future improvement and expansion, which we discuss in the conclusion.

An open and efficient block building ecosystem is essential to Ethereum. In order to catalyze further innovation and collaboration in block building, Flashbots has open sourced rbuilder, our latest and most performant block builder written in Rust, and designed to work with Reth.

We believe that sharing the responsibility and benefits of advancing block building creates a positive sum game for all Ethereum stakeholders. rbuilder is designed to be developed and stewarded by the community, and open sourcing it will accelerate this future.

We encourage developers to contribute to rbuilder, all teams to develop their builders in the open, and the community to only trust builders who follow the norms of transparency and free software.

The Dencun fork is a major Ethereum upgrade planned for over 2 years and recently went live on March 13 at epoch 29696. This upgrade introduces blob transactions, designed to reduce transaction costs for rollups. This post will detail Flashbots’ engineering work in preparation for the upgrade.

This post presents Sirrah, a minimalist demo of extending a blockchain with confidential computing using Trusted Execution Environments (TEEs). We'll cover the development end-to-end: starting from Gramine-SGX and ordinary REVM, and ending with MEV-aware auction application... and a timelock encryption demo that you can try right now.

We live in a world where decentralized finance ("defi") market structure and transaction execution is constantly changing, and poorly understood by most. Among this complexity, it is easy to forget that defi's market structure today is meaningfully different from the current state of traditional finance ("tradfi"). From the roots of a permissionless, global, decentralized genesis, defi is already well along the path to addressing a number of the criticisms levied at tradfi execution, by market participants and regulators alike.

Users should be able to see and control how their transactions are processed in the MEV supply chain. In order to bring more transparency to orderflow auctions, Flashbots has open sourced our implementation of a MEV-Share Node.

Transparency in the MEV supply chain is critical for parties that create orderflow (eg. users, wallets, and dapps) to make informed decisions. It also enables other actors like builders and searchers to better understand the guarantees and requirements of the systems they integrate.

We encourage all teams to develop their orderflow auctions in the open, and we advise the community to work with OFAs that follow the norms of free and open source software.

The Flashbots Node is one of several references and tools for MEV-Share that Flashbots has open sourced, including:

1. Protocol specifiction
2. Client library
3. Example bots

Join us in building a more decentralized and transparent MEV supply chain.

In this post, we preview the SUAVE Centauri release defined in the November 2022 roadmap in the Future of MEV. SUAVE Centauri consists of two parts: A privacy-aware orderflow auction (“OFA”), which we released with mev-share’s beta; and a SUAVE Devnet. This post aims to explain, at a high level, several key ideas that will help understand SUAVE and Flashbots more broadly. Moreover, we invite the community to experiment alongside us with the upcoming devnet launch detailed in the post.

Flashbots Research Proposals (FRP) is a grants program that Flashbots uses to fund community research, work with collaborators, and ensure that researchers beyond our internal team have the resources they need to illuminate the dark forest. While FRPs have existed since early Flashbots, our pace of grants-making accelerated in the past year. This post outlines our goals and methodology for FRP and highlights some cool projects this program made possible. Through FRP, we want to ensure that MEV is not only one of the most intellectually engaging areas to do research, but also one where passionate researchers can always find funding and support for their work. In the past year, FRP has made large strides in that direction, allowing Flashbots to support a range of external researchers including seasoned academics, ecosystem contributors, and new entrants to independent MEV research.