# The MEV Letter #111

**URL:** https://collective.flashbots.net/t/the-mev-letter-111/5347
**Category:** The Flashbots Ship
**Tags:** the-mev-letter
**Created:** [October 28, 2025, 5:29pm UTC](https://collective.flashbots.net/t/the-mev-letter-111/5347 "2025-10-28T17:29:50Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### 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: [October 28, 2025, 5:29pm UTC](https://collective.flashbots.net/t/the-mev-letter-111/5347/1 "2025-10-28T17:29:50Z")

</div>

_ **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.  
-[_Explore all previous editions via The MEV Letter explorer_](https://collective.flashbots.net/t/explorer/100).

* * *

# Papers & Articles

- [Cross-Chain Sealed-Bid Auctions Using Confidential Compute Blockchains](https://arxiv.org/abs/2510.19491) by [Jonas Gebele](https://scholar.google.de/citations?user=yO4MlLkAAAAJ&hl=en), [Timm Mutzel](https://arxiv.org/search/cs?searchtype=author&query=Mutzel,+T), [Burak Öz](https://twitter.com/boez95), and [Florian Matthes](https://www.linkedin.com/in/florianmatthes/) present a sealed-bid auction protocol that executes sensitive bidding logic on SUAVE while retaining settlement and enforcement on Ethereum.
- [Introducing FlowProxy](https://collective.flashbots.net/t/introducing-flowproxy/5341) by [Jonas](https://x.com/mempirate) and [Lorenzo](https://x.com/thedevbirb) details [FlowProxy](https://github.com/BuilderNet/FlowProxy) as a new implementation of [orderflow-proxy](https://github.com/flashbots/buildernet-orderflow-proxy) built in Rust, with the goal of reducing end-to-end latency and increasing observability in [BuilderNet](https://buildernet.org/).
  - [Post](https://x.com/thedevbirb/status/1981712363805081635) by [Lorenzo](https://x.com/thedevbirb)
  - [Post](https://x.com/mempirate/status/1981715514301772195) by [Jonas](https://x.com/mempirate)

- [Beyond Flashtestations](https://collective.flashbots.net/t/beyond-flashtestations/5342) by [Tei Im](https://x.com/tei_im) outlines a framework for extending [Flashtestation](https://github.com/flashbots/flashtestations) to support decentralized, untrusted L2 block building with an onchain [BuilderHub](https://github.com/flashbots/builder-hub).
  - [Thread](https://x.com/testinprod_io/status/1982883893377114262) by [Test in Prod (Sunnyside Labs)](https://www.testinprod.io/)

- [From Solana to the EVM: A New Path for Proprietary AMMs](https://x.com/0xOptimus/status/1981424092818399598) by @optimus details the advantages of Prop-AMMs, explores why they haven’t gained traction on EVM-chains, and outlines a mechanism to facilitate top-of-block market maker updates.
- [Variants of Mempool Tickets](https://ethresear.ch/t/variants-of-mempool-tickets/23338) by [Julian Ma](https://x.com/_julianma) compares different mempool ticketing designs for a [vertically sharded](https://notes.ethereum.org/@dankrad/BkJMU8d0R) blob mempool with reduced bandwidth costs and improved scalability in preparation for [PeerDAS](https://eips.ethereum.org/EIPS/eip-7594).
- [Hybrid Encrypted Mempools](https://ethresear.ch/t/hybrid-encrypted-mempools/23360) by[Julian Ma](https://twitter.com/_julianma) and[Benedikt Wagner](https://benedikt-wagner.dev/) presents a hybrid encrypted mempool design that combines sealed transactions and threshold encryption to mitigate sandwich attacks, enhance privacy, and improve censorship resistance.
  - [Thread](https://x.com/_julianma/status/1982845358767231054) by [Julian Ma](https://twitter.com/_julianma)

- [Selecting Optimal Outbound Neighbors (SOON) for fast, bandwidth‑efficient propagation in P2P networks](https://ethresear.ch/t/selecting-optimal-outbound-neighbors-soon-for-fast-bandwidth-efficient-propagation-in-p2p-networks/23358) by [Thomas Thiery](https://twitter.com/soispoke) and[Marios Ioannou](https://ethresear.ch/u/qed/) introduces a P2P propagation rule that reduces latency and bandwidth by forwarding messages to the _fastest_ peers instead of random ones, without altering GossipSub’s core design.
  - [Thread](https://x.com/soispoke/status/1982824544021754224) by[Thomas Thiery](https://twitter.com/soispoke)

- [Nonce Bitmap - Enabling Parallel Transaction Submission for a Parallel Blockchain](https://ethresear.ch/t/nonce-bitmap-enabling-parallel-transaction-submission-for-a-parallel-blockchain/23345) by [Thanh Nguyen](https://x.com/nvthnh) presents a transaction nonce mechanism that enables up to 256 parallel transactions per account using a bitmap-based design with minimal storage overhead.
- [Benchmarking zkVMs for Ethereum](https://zkevm.ethereum.foundation/blog/benchmarking-zkvms) by[Ignacio Hagopian](https://twitter.com/ignaciohagopian) details how the [Ethereum Foundation](https://ethereum.foundation/)’s [zkEVM team](https://zkevm.ethereum.foundation/) is stress-testing and benchmarking zkVMs to evaluate if they are performant and reliable enough to achieve [real-time proving](https://blog.ethereum.org/2025/07/10/realtime-proving).
  - [Post](https://x.com/ignaciohagopian/status/1981080616352297321) by[Ignacio Hagopian](https://twitter.com/ignaciohagopian)
  - [Post](https://x.com/ladislaus0x/status/1981099818769666218) by [ladislaus.eth](https://x.com/ladislaus0x)
  - [Post](https://x.com/jchaskin22/status/1981115850313912577) by [chaskin.eth](https://x.com/jchaskin22)

- [Zkzkevm: private evm](https://ethresear.ch/t/zkzkevm-private-evm/23315) by [Barry Whitehat](https://x.com/barrywhitehat) outlines a mechanism for compiling Solidity contracts into zkEVM-compatible bytecode that supports private user storage, enabling hybrid privacy structures where user-specific state is hidden but global state remains public.
- [Unrealized manipulation attack](https://ethresear.ch/t/unrealized-manipulating-attack/23353) by [Mediabs2022](https://ethresear.ch/u/mediabs2022) details six new unrealized manipulation attacks where adversarial proposers, through selective block withholding and multi-epoch coordination, can force reorgs.
- [Byzantine takeover attack](https://ethresear.ch/t/byzantine-takeover-attack/23352) by [Mediabs2022](https://ethresear.ch/u/mediabs2022) presents six Byzantine takeover attacks in which ⅓ of validators collude using RANDAO-grinding and delayed block releases to repeatedly reorg the chain.

# Posts & Threads

- [raulk.eth](https://x.com/raulvk) published a [thread](https://x.com/raulvk/status/1980945447683260770) highlighting recent performance improvement in [Prysm](https://github.com/OffchainLabs/prysm), achieving a 6x reduction in propagation latency after optimizing BLS signature batching.
  - [Post](https://x.com/raulvk/status/1980985927741669493) by [raulk.eth](https://x.com/raulvk)
  - [Post](https://x.com/samcmAU/status/1980957820393816208) by [Sam Calder-Mason](https://x.com/samcmAU)
  - [Post](https://x.com/barnabemonnot/status/1980977403527561358) by [Barnabé Monnot](https://barnabemonnot.com/)

- [raulk.eth](https://x.com/raulvk) published a [thread](https://x.com/raulvk/status/1982018537397924180) detailing ongoing improvements to Ethereum networking, including intelligent peer selection, routing optimizations, and validator privacy.
- [Marc Harvey-Hill](https://x.com/marchhill1) published a [post](https://x.com/marchhill1/status/1981677918066729059) announcing that interoperability has been achieved between [Nethermind](https://www.nethermind.io/) and [Besu](https://besu.hyperledger.org/) on a local devnet to test [BALs](https://eips.ethereum.org/EIPS/eip-7928).
  - [Post](https://x.com/nero_eth/status/1981693626687373316) by [Toni Wahrstätter](https://toniwahrstaetter.com/)

- [Barnabé Monnot](https://barnabemonnot.com/) published a [thread](https://x.com/barnabemonnot/status/1981370328967237727) highlighting the websites for various [Protocol teams](https://protocol.ethereum.foundation/) at [Ethereum Foundation](https://ethereum.foundation/).

# Talks & Discussions

- [Recordings](https://www.youtube.com/playlist?list=PLJqWcTqh_zKGPctGzVOBllZnCPQj-g7d3) from [lean week 2025](https://github.com/leanEthereum/pm/blob/main/workshops-and-interops/2025/lean-week-cambridge/index.md) hosted by [Ethereum Foundation](https://ethereum.foundation/) have been uploaded with talks and discussions related to [Lean Consensus R&D](https://leanroadmap.org/) and post-quantum security.
  - [Post](https://x.com/corcoranwill/status/1981729293727043864) by [Will Corcoran](https://x.com/corcoranwill)

- [From Whiteboard to Mainnet Podcast: Proposer-Builder Separation](https://www.youtube.com/live/rw0cWCT79ws) invites [Agostino Capponi](https://x.com/AgostinoCapponi), [Ruizhe Jia](https://x.com/RuizheJia), [Thomas Thiery](https://twitter.com/soispoke), and [Julian Ma](https://twitter.com/_julianma) for a conversation on the current state of PBS on Ethereum, and how things are changing with [BuilderNet](https://buildernet.org/) and [ePBS](https://eips.ethereum.org/EIPS/eip-7732).
  - [Post](https://x.com/cryptoeconprof/status/1981707557279506900) by [Fahad Saleh](https://x.com/cryptoeconprof)
  - [Post](https://x.com/ethereumfndn/status/1981482494265610558) by [Ethereum Foundation](https://ethereum.foundation/)

- [dstack Community Call : Volume 2](https://x.com/i/broadcasts/1vAxRQzOrWyJl) hosted by [Phala](https://phala.com/) covered recent developments related to [dstack](https://github.com/Dstack-TEE/dstack), and invites @socrates1024 for a walkthrough of Teleport MCP.
  - [Post](https://x.com/PhalaNetwork/status/1980643244578136206) by[Phala](https://phala.com/)

- [The Boss Code: Building the Foundation for Tomorrow’s Digital Economy](https://www.youtube.com/watch?v=8w7yLoEo8v8) invites [Ben Fisch](https://sites.google.com/site/benafisch) to discuss consensus protocols, ZK, cross-chain interoperability, and [Espresso](https://www.espressosys.com/).
  - [Post](https://x.com/theasianboss/status/1981608207736058142) by [Stephen Park](https://x.com/theasianboss)

- [Deeply Intents - Episode 29: Securing the Future of Ethereum Core Development](https://www.youtube.com/watch?v=HiS1wgyWDs8) invites [Trent Van Epps](https://x.com/trent_vanepps) for a conversation on how [Protocol Guild](https://www.protocolguild.org/) is working to help fund the Ethereum commons.
  - [Thread](https://x.com/apriori0x/status/1982154460198572174) by [apriori](https://x.com/apriori0x)

- [All Core Devs - Execution (ACDE) #223](https://www.youtube.com/watch?v=In1-paNfjzQ) hosted by [Alex Stokes](https://stokes.io/) covered Fusaka updates, non-headliner EIPs for Glamsterdam, gas repricing, and more.
  - [Agenda](https://github.com/ethereum/pm/issues/1764) by [nixo.eth](https://x.com/nixorokish)
  - [Notes](https://christinedkim.substack.com/p/acde-223) by [Christine D. Kim](https://x.com/christine_dkim)
  - [Notes](https://etherworld.co/2025/10/23/highlights-from-the-all-core-developers-execution-acde-call-223/) by [Yash Kamal Chaturvedi](https://twitter.com/YashKamalChatu1)
  - [Thread](https://x.com/poojaranjan19/status/1981359963722129901) by [Pooja Ranjan](https://x.com/poojaranjan19)

- [All Core Devs - Testing (ACDT) #59](https://www.youtube.com/watch?v=zfrPOtUxK90) hosted by [Mario Vega](https://x.com/elbuenmayini) discussed updates from Fusaka on devnets, 60M gas limit testing, and the testing of [BALs](https://eips.ethereum.org/EIPS/eip-7928) and [ePBS](https://eips.ethereum.org/EIPS/eip-7732).
  - [Agenda](https://github.com/ethereum/pm/issues/1778) by [Mario Vega](https://x.com/elbuenmayini)
  - [Thread](https://x.com/poojaranjan19/status/1982810041372565635) by [Pooja Ranjan](https://x.com/poojaranjan19)

- [EIP-7732 Breakout Room Call #26](https://www.youtube.com/watch?v=MCnBoHlN-jU) hosted by[Justin Traglia](https://x.com/JustinTraglia) discussed updates related to[ePBS](https://eips.ethereum.org/EIPS/eip-7732), including the[new consensus spec](https://github.com/ethereum/consensus-specs/releases/tag/v1.6.0-beta.1), client implementations, and proposed changes to attestation data.
  - [Agenda](https://github.com/ethereum/pm/issues/1759) by[Justin Traglia](https://x.com/JustinTraglia)
  - [Post](https://x.com/JustinTraglia/status/1981743062612058488) by[Justin Traglia](https://x.com/JustinTraglia)
  - [Post](https://x.com/poojaranjan19/status/1981722274504790108) by[Pooja Ranjan](https://x.com/poojaranjan19)

- [EIP-7928 Breakout #5](https://www.youtube.com/watch?v=oYCumggIu-k) hosted by [Toni Wahrstätter](https://toniwahrstaetter.com/) covered updates related to [BALs](https://eips.ethereum.org/EIPS/eip-7928), including client implementations, coinbase handling, and more.
  - [Agenda](https://github.com/ethereum/pm/issues/1771) by [Toni Wahrstätter](https://toniwahrstaetter.com/)
  - [Post](https://x.com/poojaranjan19/status/1980997576808685675) by [Pooja Ranjan](https://x.com/poojaranjan19)

# Other

- [Engineering Update – October 2025](https://collective.flashbots.net/t/engineering-update-october-2025/5343) by [Chris Hager](https://www.metachris.com/) summarizes recent [BuilderNet](https://buildernet.org/) updates such as the launch of delayed refunds, a new refund API, performance improvements, and more.
- [CIP-Draft: General Authorisation & Confidence Mandate to Sell CoW DAO’s Stake in MEV Blocker](https://forum.cow.fi/t/cip-draft-general-authorisation-confidence-mandate-to-sell-cow-dao-s-stake-in-mev-blocker/3222) by [Kowrigan](https://forum.cow.fi/u/kowrigan) seeks approval for [CoW Foundation](https://cow.foundation/) to sell [CoW DAO](https://cow.fi/)’s stake in [MEV Blocker](https://mevblocker.io/).

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