# The MEV Letter #84 **URL:** https://collective.flashbots.net/t/the-mev-letter-84/4900 **Category:** The Flashbots Ship **Tags:** the-mev-letter **Created:** [April 22, 2025, 9:58pm UTC](https://collective.flashbots.net/t/the-mev-letter-84/4900 "2025-04-22T21:58:39Z") **Posts on this page:** 1 **Page:** 1
### Author: ![Fred](https://collective.flashbots.net/user_avatar/collective.flashbots.net/fred/32/1288_2.png) [@Fred](https://collective.flashbots.net/u/Fred) #### Post date: [April 22, 2025, 9:58pm UTC](https://collective.flashbots.net/t/the-mev-letter-84/4900/1 "2025-04-22T21:58:39Z")
_ **The MEV Letter** _ is a weekly collection of papers, articles and resources related to MEV. The intention of this letter is to provide a comprehensive summary of the latest research, discussions, and developments in the space, with links for further reading. * * * # Papers & Articles - [Insecurity Through Obscurity: Veiled Vulnerabilities in Closed-Source Contracts](https://arxiv.org/abs/2504.13398) by [Sen Yang](https://x.com/syang2ng), [Kaihua Qin](https://qin.ac/), [Aviv Yaish](https://aviv.yai.sh/), and [Fan Zhang](https://www.fanzhang.me/) introduces an EVM bytecode analysis tool designed to detect and exploit vulnerabilities in obfuscated, closed-source smart contracts such as MEV-bots. - [Thread](https://x.com/syang2ng/status/1914389640678941068) by [Sen Yang](https://x.com/syang2ng) - [Post](https://x.com/0xFanZhang/status/1914399074251428242) by [Fan Zhang](https://www.fanzhang.me/) - [The Key Neutrality of Baselayer Markets](https://www.paradigm.xyz/2025/04/the-key-neutrality-of-baselayer-markets) by [Alexander Grieve](https://x.com/alexandergrieve) and [Rodrigo Seira](https://x.com/RSSH273) addresses SEC Commissioner [Hester Peirce](https://www.sec.gov/about/sec-commissioners/hester-m-peirce)’s [questions on MEV](https://www.sec.gov/newsroom/speeches-statements/peirce-statement-rfi-022125) and calls for a tech-neutral, flexible approach that preserves decentralization and fosters innovation. - [Thread](https://x.com/alexandergrieve/status/1913260708436865308) by[Alexander Grieve](https://x.com/alexandergrieve) - [Raid - Rollup inbox for based sequencing](https://ethresear.ch/t/raid-rollup-inbox-for-based-sequencing/22173) by [jvranek](https://ethresear.ch/u/jvranek/summary) introduces [Raid](https://eth-fabric.github.io/website/research/raid) (Retroactive Attestation of Inbox Data) as a set of contracts that rollups can adopt to enable preconf-compatible based sequencing. - [Thread](https://x.com/fabric_ethereum/status/1912942239401300108) by [Fabric](https://x.com/fabric_ethereum) - [Timeboost is Now Live on Arbitrum — How Gattaca is Leading Adoption: Q+A](https://blog.arbitrum.io/gattaca-titan-timeboost-live-on-arbitrum/) by [Arbitrum](https://arbitrum.io/) explains the 60-second priority windows in [Timeboost](https://github.com/OffchainLabs/timeboost-design), and how [Kairos](https://kairos-timeboost.xyz/) will offer sub-auctions every ~100ms when it wins exclusive rights to the express lane. - [Post](https://x.com/arbitrum/status/1913141410800517244) by[Arbitrum](https://arbitrum.io/) - [Fast Confirmation Rule on Safe Head in Prysm](https://ethresear.ch/t/fast-confirmation-rule-on-safe-head-in-prysm/22167) by [Terence Tsao](https://terencecha.in/) shares observations from testing an experimental implementation of the [fast confirmation algorithm](https://ethresear.ch/t/confirmation-rule-for-ethereum-pos/15454) in [Prysm](https://www.offchainlabs.com/prysm). - [Post](https://x.com/terencechain/status/1912515953797345456) by [Terence Tsao ](https://terencecha.in/) # Posts & Threads - [Optimism](https://optimism.io/) published a [thread](https://x.com/Optimism/status/1914770435347997141) highlighting how transactions on [Unichain](https://www.unichain.org/) and [Base](https://www.base.org/) will soon become 10x faster thanks to the integration of [Flashblocks](https://writings.flashbots.net/introducing-rollup-boost). - [PBS Foundation](https://pbs.foundation/) published a [thread](https://x.com/PBS_Foundation/status/1912475330314736100) sharing notes from [Protocol Research Call 1](https://www.youtube.com/live/m5HFO4DYckQ?t=2789s) which discussed long-term protocol goals, network design, and validator roles. - [ladislaus.eth](https://x.com/ladislaus0x) published a [thread](https://x.com/ladislaus0x/status/1913175306501775396) summarizing updates from [EF Research](http://research.ethereum.foundation/) on [3-Slot-Finality](https://arxiv.org/abs/2411.00558), [Execution Dependencies](https://ethresear.ch/t/execution-dependencies/22150), [Delayed Execution](https://nerolation.github.io/delayed-execution-docs/), and more from the previous week. - [Arbitrum](https://arbitrum.io/) published a ​​[thread](https://x.com/arbitrum/status/1912945720237367449) announcing [TimeBoost](https://github.com/OffchainLabs/timeboost-design) being activated on Arbitrum One and Nova, allowing users to bid for express lane access with faster transaction inclusion. - [Thread](https://x.com/offchainlabs/status/1912946373567140154) by [Offchain Labs](https://www.offchainlabs.com/) - [Thread](https://x.com/hkalodner/status/1912977465544266207) by [Harry Kalodner](https://x.com/hkalodner) - [Thread](https://x.com/entropyadvisors/status/1912947152474784229) by [Entropy Advisors](https://entropyadvisors.com/) - [Gattaca](https://www.gattaca.com/) published a [thread](https://x.com/gattacahq/status/1913153147368853950) announcing [Kairos](https://kairos-timeboost.xyz/), an express lane auction system built on top of [TimeBoost](https://github.com/OffchainLabs/timeboost-design) with sub-round auctions every ~100ms. - [Alex Nezlobin](https://x.com/0x94305) published a [thread](https://x.com/0x94305/status/1912989916084281391) showcasing how [0x Settler](https://github.com/0xProject/0x-settler) failed to enforce slippage limits on individual hops in multi-hop swaps, enabling JIT and sandwich attacks in low-liquidity, low-fee pools. - [The Latest in Defi Research](https://www.thelatestindefi.org/) published a [thread](https://x.com/thelatestindefi/status/1912922868364493176) highlighting an upcoming paper that explores how often Ethereum trades could have been executed peer‑to‑peer through CoW-matches. # Talks & Discussions - [Indexed Podcast](https://x.com/indexed_pod): [Pectra Upgrade: Will This Save Ethereum?](https://www.youtube.com/watch?v=xzRD1TgCgDQ) with [hildobby](https://x.com/hildobby_) and @sui414 invites [Christine Kim](https://x.com/christine_dkim) to provide an overview of the EIPs included in the upcoming Pectra upgrade. - [Thread](https://x.com/indexed_pod/status/1912887785440104740) by [Indexed Podcast](https://x.com/indexed_pod) - [Bankless](https://www.bankless.com/):[Ethereum’s Strategic Pivot: The Plan it Needs to Win](https://www.youtube.com/watch?v=WzSVcUeKRZ4) invites[Dankrad Feist](https://x.com/dankrad) and[Ansgar Dietrichs](https://twitter.com/adietrichs) to discuss the focus towards L1 growth and the implications for L2s and decentralization. - [Thread](https://x.com/BanklessHQ/status/1914288019353260107) by[Bankless](https://www.bankless.com/) - [The Rollup](https://therollup.co/): [Why You Need To Understand Timeboost (and how it affects Ethereum users!)](https://www.youtube.com/watch?v=DdYoqZ32uXc) invites [Harry Kalodner](https://x.com/hkalodner) for a conversation on [TimeBoost](https://github.com/OffchainLabs/timeboost-design) and the future of [Arbitrum](https://arbitrum.io/). - [Post](https://x.com/therollupco/status/1912954109402956287) by [The Rollup](https://therollup.co/) - [L2 Interop Working Group Call #7](https://www.youtube.com/watch?v=PKLMRXjizbs) hosted by [Josh Rudolf](https://x.com/rudolf6_) discuss [ERC-7786](https://www.erc7786.org/) as a modular API standard for cross-chain message passing and composable interoperability. - [Notes](https://notes.ethereum.org/@rudolf/interop-7) by [Josh Rudolf](https://x.com/rudolf6_) - [Thread](https://x.com/ellierdavidson/status/1909645927909843195) by [Ellie Davidson](https://x.com/ellierdavidson) - [beam call #4 (exit queue)](https://www.youtube.com/watch?v=M6oRqhjMFQc) hosted by [Justin Drake](https://x.com/drakefjustin) invites [Mike Neuder](https://twitter.com/mikeneuder) and [Mallesh Pai](https://x.com/malleshpai) to present [Adding flexibility to Ethereum’s exit queue](https://ethresear.ch/t/adding-flexibility-to-ethereums-exit-queue/22061) via [EIP-7922](https://github.com/ethereum/EIPs/pull/9552). - [Agenda](https://github.com/ethereum/pm/issues/1446) by [Will Corcoran](https://x.com/corcoranwill) - [Ethereum 3 slot finality](https://www.youtube.com/watch?v=6tTayGHBFTg) invites [Luca Zanolini](https://lucazanolini.com/) and [Roberto Saltini](https://x.com/robsaltini) for a presentation on the design of [Gasper](https://ethereum.org/en/developers/docs/consensus-mechanisms/pos/gasper/), and [3-Slot-Finality](https://arxiv.org/abs/2411.00558). - [Post](https://x.com/luca_zanolini/status/1912745637491155177) by [Luca Zanolini](https://lucazanolini.com/) - [Resource Locks 101 ft. Ankit and Stephane (OneBalance)](https://www.youtube.com/watch?v=79IdtPkQ6XE) invites [Ankit Chiplunkar](https://x.com/ankitchiplunkar) and [Stephane Gosselin](https://twitter.com/thegostep) to discuss resource locks, solvers, interopability, and [OneBalance](https://www.onebalance.io/). - [Thread](https://x.com/lifiprotocol/status/1913208709204898049) by [LI.FI](http://li.fi) - [EIP-7917: Deterministic proposer lookahead with Justin Drake & Lin Oshitani PEEPanEIP](https://www.youtube.com/watch?v=oFSUU91BMOg) invites [Justin Drake](https://twitter.com/drakefjustin) and [Lin Oshitani](https://x.com/linoscope) to present [EIP-7917](https://eips.ethereum.org/EIPS/eip-7917), which adds a `proposer_lookahead`-field to the beacon state for storing a deterministic proposer lookahead for the next epoch. - [MEV Space #5: Sandwiched in Time – Tracing MEV on EVM Chains](https://x.com/EigenPhi/status/1912483210878996817) by invites [Luis Bezzenberger](https://x.com/bezzenberger), [Yixin Cao](https://x.com/playerYixin), and [hildobby](https://x.com/hildobby_) to discuss the evolution of sandwich attacks, and mitigation efforts through protocol upgrades and encrypted mempools. - [Post](https://eigenphi.substack.com/p/how-sandwich-attacks-are-evolving-mev-space-5) by [EigenPhi](https://eigenphi.io/) # Other - [Announcing multi-client support for rbuilder](https://collective.flashbots.net/t/announcing-multi-client-support-for-rbuilder/4895) by @mralj announces the support for different EL clients to [rbuilder](https://github.com/flashbots/rbuilder), enabling client diversity in [BuilderNet](https://buildernet.org/). - [Delayed Execution: EIP-7886 - Info Doc](https://nerolation.github.io/delayed-execution-docs/) by [Toni Wahrstätter](https://toniwahrstaetter.com/) provides additional information on [EIP-7886](https://eips.ethereum.org/EIPS/eip-7886), designed to make blocks statically verifiable by charging coinbase for inclusion costs upfront. - [Post](https://x.com/nero_eth/status/1912441079367868506) by [Toni Wahrstätter](https://toniwahrstaetter.com/) - [EIP-7702 Security Risks Developers Shouldn’t Ignore](https://www.nethermind.io/blog/eip-7702-attack-surfaces-what-developers-should-know) by [Nethermind Security](https://www.nethermind.io/nethermind-security) explains the design of [EIP-7702](https://eip7702.io/) and the associated vulnerabilities from insecure delegation mechanisms. - [Thread](https://x.com/thelatestindefi/status/1912922868364493176) by[ Nethermind Security ](https://www.nethermind.io/nethermind-security) * * * ✉ [**Sign up here**](https://flashbots.net/the-mev-letter) if you’d like to get The MEV Letter straight to your inbox! 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