Shea Ketsdever (@SheaKetsdever) / X

Shea Ketsdever

666 posts

Shea Ketsdever

@SheaKetsdever

Positive sum games 🤖

Joined December 2020

Pinned
Shea Ketsdever
@SheaKetsdever
Nov 26, 2024
Introducing BuilderNet. BuilderNet is a decentralized block building network for Ethereum that runs on TEEs and shares MEV & gas fees with users. An early version of BuilderNet is live today — operated by Flashbots, Beaverbuild, and Nethermind.
273K
Shea Ketsdever
@SheaKetsdever
Dec 9, 2024
Flashbots no longer operates a centralized block builder on Ethereum. We’ve migrated our builders, orderflow, and refunds to BuilderNet.
43K
Shea Ketsdever
@SheaKetsdever
Jul 3, 2024
Introducing rbuilder – an Ethereum block builder written in Rust with a focus on performance, modularity, and contributor friendliness. We've been running rbuilder in production at Flashbots for 3 months and are excited to open source it.
62K
Shea Ketsdever
@SheaKetsdever
Jul 24, 2023
Flashbots has open sourced the Flashbots MEV-Share Node writings.flashbots.net/open-sourcing-…
59K
Shea Ketsdever
@SheaKetsdever
May 6, 2025
Beaverbuild is retiring their centralized block builder to work full time on BuilderNet.
56K
Shea Ketsdever
@SheaKetsdever
Mar 1, 2025
> Be Tomasz > Appointed co-director of EF > Immediately drops public calendar link, first slot is 3am-11pm on sunday > "Sorry this is not enough, I will add more" > Does not even start the job for 2 weeks Bullish @tkstanczak. (And yes, he is always like this).
Tomasz K. Stańczak
@tkstanczak
Mar 1, 2025
I was asked and accepted to be a co-Executive Director (alongside Hsiao Wei) of Ethereum Foundation. Officially starting around 17th of March (pending paperwork). Please reach out via Telegram to @tkstanczak if you think we should talk / prefer async but a call also works
26K
Shea Ketsdever
@SheaKetsdever
May 2, 2023
MEV-Share is a new paradigm for searchers. It unlocks new orderflow, features, and searching strategies — all while keeping transaction data private. But what does it mean to search on private orderflow? We put together a short guide
Searching On MEV-Share | Flashbots Writings
From writings.flashbots.net
77K
Shea Ketsdever
@SheaKetsdever
May 30, 2023
Just saw a 10.8 ETH refund on MEV-Share… … for a completely *private* transaction
86K
Shea Ketsdever
@SheaKetsdever
Sep 28, 2023
Excited to share a new searching guide from ⚡️🤖 Ep. 2 — Flash loan arbitrage We’ll cover 1. Creating a MEV-Share bot 2. How arb math *actually* works 3. The magic of flash loans
55K
Shea Ketsdever
@SheaKetsdever
Apr 20, 2023
MEV-Share beta is live on Ethereum mainnet collective.flashbots.net/t/announcing-m…
54K
Shea Ketsdever
@SheaKetsdever
Jul 22, 2024
Why TEEs matter in MEV and some apps I’m excited to build with them
Ignite
@ignitecelestia
Jul 20, 2024
MEV in 2025 by @SheaKetsdever
00:00
45K
Shea Ketsdever
@SheaKetsdever
Jul 9, 2024
1/ Introducing gas refunds from Flashbots — the open, permissionless alternative to proprietary orderflow deals. As of July 8th, gas refunds are available on all transactions sent to Flashbots Protect and Builder. The refund rule is open source and executed securely in TEEs.
57K
Shea Ketsdever
@SheaKetsdever
Jul 27, 2023
Mark your calendars for the first Flashbots CTF. 2023-08-05T00:00:00.00Z ctf.flashbots.net
81K
Shea Ketsdever
@SheaKetsdever
Nov 1, 2023
Had a great time talking with @katherinewu about MEV, privacy, and SUAVE ⚡️
Archetype
@archetypevc
Nov 1, 2023
We're kicking off S4 of Archebyte with a deep dive into MEV with @SheaKetsdever from Flashbots ⚡️🤖 Shea walks us through the MEV supply chain, SAUVE, order flow auctions, and the future of programmable privacy. Find the full episode in the comment below ⤵️
00:00
20K