Positive sum games 🤖
Joined December 2020
- Tweets 666
- Following 136
- Followers 4,503
- Likes 2,096
86 Photos and videos
Pinned Tweet
26 Nov 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.
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Shea Ketsdever retweeted
Spent the weekend auditing TEE-based crypto projects on mainnets.
It’s worse than I expected.
“Remote attestation” is mostly just theatre.
With one exception (Flashbots), users are being sold security properties that simply aren’t there.
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Shea Ketsdever retweeted
Feb 17
SUAVE SUAVE
SUAVE SUAVE
SUAVESUAVESUAVESUAVESUAVE
Feb 17
0/ For years, proponents of blockchain technology and markets have traded off DeFi execution for decentralization.
3 years ago, Flashbots proposed an escape hatch through a Single Unified Auction for Value Expression. But it’s been a while. How about an update? 🧵⬇️
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1 Dec 2025
The machines are waking up
This talk is such a great 10,000 foot view of what have we learned from the last 5 years of order flow on permissionless blocks and argument for why these are particularly relevant insights when the machines are waking up
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Shea Ketsdever retweeted
27 Nov 2025
10/10 talk for general audiences on why I like working in MEV
LIVE NOW -- The Bot Economy: When AI & MEV Collide | Shea Ketsdever
In our eleventh talk of the Bankless Summit, Flashbots researcher @SheaKetsdever explores the rise of the bot economy and how software is rapidly taking over digital markets.
She explains why bots dominate everything from trading to ticket sales, how auctions and programmable privacy can turn chaotic bot competition into better outcomes for users, and why crypto is uniquely positioned to build markets that are fair, efficient, and trust minimized.
-----
[Bankless Summit in partnership with @m0]
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Shea Ketsdever retweeted
24 Oct 2025
At @chainbound_ , we collaborated with Flashbots on a new implementation of BuilderNet overflow proxy (FlowProxy) created with the goal of reducing e2e latency and increasing observability. It's now open source and live on all instances since October 17th!
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Shea Ketsdever retweeted
25 Sep 2025
Shea is one of the most engaging and technically accessible speakers on crypto!
Honored to have her give a talk at the Bankless Summit at @EFDevcon!!
Remember: at the Bankless Summit, there are no panels. Talks only.
25 Sep 2025
Heard great things about bankless summit last year, excited to join the lineup for buenos aires!
See you nov 18th
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25 Sep 2025
Heard great things about bankless summit last year, excited to join the lineup for buenos aires!
See you nov 18th
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Shea Ketsdever retweeted
10 Sep 2025
As a community we exclaim “don’t trust, verify”, but the reality is every single one of you sends your transactions into a black box where unknown actors can see your data and deploy arbitrary code, all behind a closed door dev process. BuilderNet is different. 🚀
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2/ @ethereum’s second decade kicked off with a block built by @flashbots_x BuilderNet, a decentralized, MEV-sharing network already refunding users >1,000 ETH. A fitting milestone for a decentralized network that’s never gone down in 10 years.
ALT https://dune.com/flashbots/buildernet
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Shea Ketsdever retweeted
21 Jul 2025
Awesome reveal that will radically improve Solana's market structure
Jito chads just keep shipping
And shoutout Flashbots for leading the way on MEV yet again - BuilderNet helped inspire BAM as Lucas mentions in here
21 Jul 2025
Jito BAM and the Future of Solana x.com/i/broadcasts/1djxXVNbA…
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Flashbots is significantly ahead of its time in multiple dimensions.
Introducing BAM: The Block Assembly Marketplace that revolutionizes how Solana processes transactions.
Private. Transparent. Verifiable.
This is how Solana wins ⬇️
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22 Jul 2025
TEEs are eating block building
Congrats to solana & jito on the launch :)
Introducing BAM: The Block Assembly Marketplace that revolutionizes how Solana processes transactions.
Private. Transparent. Verifiable.
This is how Solana wins ⬇️
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Viem 2.33 introduces initial support for Flashblocks as a first-class citizen!
Try it out in Viem or Wagmi by importing a chain that supports preconfirmations – starting with `basePreconf` `baseSepoliaPreconf`.
Then observe sub-200ms transaction confirmation times. 🫡
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Shea Ketsdever retweeted
18 Jul 2025
What did you do to make it 10x faster?
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Shea Ketsdever retweeted
16 Jul 2025
Base is now 10x faster
Flashblocks are live on Base, speeding up effective block times from 2 seconds to 200 milliseconds and making it the fastest EVM chain today
From 'click' to 'confirmed' in the time it takes to think
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11 Jul 2025
BuilderNet v1.5 →
This release has a 2x faster median fill time, 5x faster root hash, and adds trusted TLS certificates for more secure orderflow submission.
TDX images can be reproducibly built using the guide below.
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Shea Ketsdever retweeted
30 Jun 2025
"Why MEV is the most important problem in crypto?"
@SheaKetsdever
@EthCC
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Shea Ketsdever retweeted
30 Jun 2025
Killing it at EthCC.
You're a great speaker.
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