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ACDC2026-02-05_174

AllCoreDevs — Consensus #174

2026-02-05 1 decision 348 transcript lines

Transcript

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Call summary

Targets
  • End of February - EPBS DevNet-0 launch with Alpha 2 specs — 00:30:02
  • February 19 - ACDC #175 to finalize Hegotá headliner selection — 00:51:07
Decisions
  • Hegotá headliner selection postponed to next ACDC (Feb 19) for community review period — 00:51:20
Highlights
  • Organizational:
    • ·Cell-deltas working group: weekly meetings, reach Marco to join or access notes — 00:26:01
  • Glamsterdam Epbs:
    • ·EPBS DevNet-0 target: end of February; Potuz/Prism targeting, Lodestar end-of-month — 00:30:02
    • ·Serious deposit bug caught by Lido researchers; PR 4897 addresses issue — 00:31:41
    • ·Fork-choice with OptimisticSync highly non-trivial; edge cases in branch removal flagged — 00:32:15
    • ·DevNet-0 scope: self-building only, testing payload/block separation before adding builders — 00:35:09
  • Hegota Headliner:
    • ·FOCIL proposed as Hegotá headliner; 8/11 clients have prototypes, CFI'd status — 00:41:48
    • ·New proposal: partial reconstruction + 2D PeerDAS vertical extension (Leo) — 00:44:36
    • ·Broad consensus for prioritizing CR/FOCIL; decision deferred to next ACDC (Feb 19) — 00:48:12
  • Interfork Optimization:
    • ·Cell-level deltas: Lighthouse near-done, Prism reviewing, progressive rollout planned pre-Amsterdam — 00:19:08
    • ·Blob DevNet-0 stable for 2 weeks; 100% MEV blocks, 50% support partial messages — 00:23:03
    • ·Cell deltas deployment: opt-in flag initially, enable by default after testing complete — 00:26:54
Action Items
  • All teams — Review Leo's 2D reconstruction proposal; provide feedback via Magicians or direct contact — 00:47:23
  • Justin Traglia and stokes — Review deposit bug fix PR 4897 and merge post-call — 00:33:04

Meeting chat137

  • Potuz

    gm

  • Justin Traglia

    Gm

  • Pooja Ranjan

    gm

  • Sam Jernigan

    gm

  • Mehdi Aouadi

    gm

  • nixo

    gm

  • Enrico Del Fante (tbenr)

    gm

  • Chris Berry

    gm

  • Pooja Ranjan

    Sound is perfect, now!

  • Pooja Ranjan

    Mario is helping

  • stokes

    https://github.com/ethereum/pm/issues/1907

  • Barnabas

    is marco cutting out for anyone else?

  • Justin Traglia

    https://github.com/ethereum/consensus-specs/pull/4558

  • Enrico Del Fante (tbenr)

    Replying to "is marco cutting out..." Here too

  • Kevaundray Wedderburn

    Replying to "is marco cutting out..." A bit for me

  • Justin Traglia

    Reacted to "is marco cutting out..." with 👍

  • Kalo | Obol

    Replying to "is marco cutting out..." Yap, for me as well

  • Kalo | Obol

    Reacted to "is marco cutting out..." with 👍

  • Raúl Kripalani

    Replying to "is marco cutting out…" Networking team could do with a better network 😂

  • Justin Traglia

    Reacted to "Networking team coul..." with 😅

  • Bharath

    Reacted to "Networking team coul..." with 😅

  • Mehdi Aouadi

    Reacted to "Networking team coul..." with 😅

  • Potuz

    Reacted to "Networking team coul..." with 😅

  • Sukun Tarachandani

    Reacted to "is marco cutting out…" with 👍

  • Francesco

    Replying to "is marco cutting out..." Putting yourselves in the user’s shoes

  • stokes

    Reacted to "Networking team coul..." with 😂

  • Marius van der Wijden

    Whooo Lighthouse lfg

  • Raúl Kripalani

    Replying to "is marco cutting out…" yep guys, this is how EIP-7870 actually feels

  • Trent

    Reacted to "Whooo Lighthouse lfg" with 🔥

  • Marius van der Wijden

    Reacted to "Whooo Lighthouse l..." with 🔥

  • Raúl Kripalani

    Reacted to "Whooo Lighthouse lfg" with 🔥

  • Daniel Knopik

    Reacted to "Whooo Lighthouse l..." with ❤️

  • Mario Havel

    Reacted to "Whooo Lighthouse l..." with 🔥

  • Barnabas

    Reacted to "Whooo Lighthouse lfg" with 🔥

  • Justin Traglia

    Reacted to "Whooo Lighthouse lfg" with 🔥

  • Antoine James

    Reacted to "Whooo Lighthouse lfg" with 🔥

  • Matthew Keil

    @Marco Munizaga I can also give an update

  • Raúl Kripalani

    Reacted to "@Marco Munizaga I ca…" with 🔥

  • Satyajit

    Reacted to "Networking team co..." with 😅

  • Kalo | Obol

    Reacted to "Networking team coul..." with 😅

  • Barnabas

    https://dora.blob-devnet-0.ethpandaops.io/blocks

  • Justin Traglia

    Reacted to "https://dora.blob-de..." with 🔥

  • Raúl Kripalani

    Reacted to "https://dora.blob-de…" with 🔥

  • stokes

    Reacted to "https://dora.blob-de..." with 🔥

  • Barnabas

    Replying to "https://dora.blob-de..." We currently have ~100% mev blocks 12 private blobs / 12 public blobs (can increase further) We have 20 clients - 10 clients support partial messages Everyone is up to head, everyone seems to have close to every other peers - full mesh

  • Francesco

    Reacted to "https://dora.blob-de..." with 🔥

  • nflaig

    Reacted to "https://dora.blob-de..." with 🔥

  • soispoke

    Reacted to "https://dora.blob-de..." with 🔥

  • Marco Munizaga

    https://github.com/ethereum/beacon-metrics/pull/21

  • Barnabas

    I’d encourage everyone to have an opt in flag, not an opt out. And once well tested, enable it by default (cc lighthouse)

  • Daniel Knopik

    Reacted to "I’d encourage eve..." with 👍

  • Leo

    Reacted to "I’d encourage eve..." with 👍

  • Raúl Kripalani

    Reacted to "I’d encourage everyo…" with 👍

  • Stefan Starflinger

    Reacted to "https://dora.blob-de…" with 🔥

  • Justin Traglia

    I support doing this asap.

  • Potuz

    Reacted to "I’d encourage everyo..." with 👍

  • Phil Ngo

    Reacted to "I’d encourage everyo..." with 👍

  • Justin Traglia

    Reacted to "I’d encourage everyo..." with 👍

  • Satyajit

    Reacted to "I’d encourage eve..." with 👍

  • felipe

    Reacted to "Networking team co..." with 😅

  • Antoine James

    Reacted to "I’d encourage everyo..." with 👍

  • Potuz

    we're targetting it

  • Justin Traglia

    We did publish a new release, with new specs for devnet-0: https://github.com/ethereum/consensus-specs/releases/tag/v1.7.0-alpha.2

  • Antoine James

    Reacted to "We did publish a new..." with 🔥

  • Barnabas

    Reacted to "we're targetting it" with 🏋️

  • NC

    Lodestar is still targeting end of this month

  • Justin Traglia

    Reacted to "we're targetting it" with 🏋️

  • Justin Traglia

    Link to what potuz is talking about: https://github.com/ethereum/consensus-specs/pull/4897

  • Barnabas

    Reacted to "Lodestar is still ta..." with 🏋️

  • Justin Traglia

    Replying to "Link to what potuz i..." Also see: https://discord.com/channels/595666850260713488/874767108809031740/1468323583548723282

  • Justin Traglia

    Replying to "Link to what potuz i..." I think caching deposit signature verifications is reasonable, but I could be wrong.

  • Raúl Kripalani

    ICYMI, we just shipped this: https://gloas.ethp2p.dev simulates the separation, and will be updated soon to add BALs, and deadline analysis based on actual network activity

  • Enrico Del Fante (tbenr)

    Reacted to "ICYMI, we just shipp..." with 🔥

  • Justin Traglia

    Replying to "ICYMI, we just shipp..." This is super cool 🔥 one quick question, why are the raw/wire sizes different between fulu and gloas? [Full message cannot be displayed on this version]

  • Yann Vonlanthen

    Reacted to "ICYMI, we just shipp..." with 🔥

  • Satyajit

    Reacted to "ICYMI, we just shi..." with 🔥

  • Justin Traglia

    Replying to "ICYMI, we just shipp..." For example, 240/238 for fulu and 240/235 for gloas.

  • Leo

    It would be better to not normalize the bars, so that we can easily see the differences between slots

  • Satyajit

    Replying to "ICYMI, we just shi..." Looks great! An arrow to move forward/backward among slots easily would be great.

  • Potuz

    @Francesco I want to merge this https://github.com/ethereum/consensus-specs/pull/4884 :)

  • Justin Traglia

    Reacted to "ICYMI, we just shipp..." with 🔥

  • hangleang

    Reacted to "ICYMI, we just shi..." with 🔥

  • stokes

    https://ethereum-magicians.org/tag/hegota

  • Raúl Kripalani

    Replying to "It would be better t…" AFAIK the max bar width is the max of what’s displayed in the view (so it’s already relative). Are you seeing something different?

  • Enrico Del Fante (tbenr)

    Replying to "ICYMI, we just shipp..." is ratio sign hardcoded to be - ? [Full message cannot be displayed on this version]

  • donnoh | L2BEAT

    Reacted to "ICYMI, we just shipp…" with 🔥

  • Enrico Del Fante (tbenr)

    Replying to "ICYMI, we just shipp..." Seems the first two should be positive, not negative

  • Ansgar Dietrichs

    I think we have broad consensus on prioritizing CR in H*. I am not super deep in the weeds on the specifics of the FOCIL mechanism - how much consensus is there around this specifically being the right approach? Is this something that needs more discussion? If so, would we do that before or after selecting it as headliner?

  • Ansgar Dietrichs

    Replying to "I think we have broa..." I think I remember some skepticism by @Toni Wahrstätter for example?

  • Potuz

    Replying to "I think we have broa..." I do not think there is any alternative mechanism proposed

  • soispoke

    Reacted to "I do not think there..." with 👍

  • Raúl Kripalani

    Replying to "ICYMI, we just shipp…" Hmm good find, this looks like a bug.

  • Raúl Kripalani

    Reacted to "Seems the first two …" with 👍

  • Enrico Del Fante (tbenr)

    Reacted to "Hmm good find, this ..." with 👍

  • Raúl Kripalani

    Replying to "ICYMI, we just shipp…" Should be fixed shortly!

  • Enrico Del Fante (tbenr)

    Reacted to "Should be fixed shor..." with 🔥

  • Ansgar Dietrichs

    Replying to "I think we have broa..." yes I just want to confirm we actually think it’s the right thing to do. My assumption is that the answer is yes, but important to be certain about this.

  • Julian Ma

    Replying to "I think we have broa..." Do you mean whether FOCIL as a whole is the right specific approach or whether some of the specifics of FOCIL should be changed like exact enforcement rules of the IL and size etc

  • Ansgar Dietrichs

    Replying to "I think we have broa..." @Julian Ma FOCIL as a whole - adjustments can always be made post headliner selection

  • Julian Ma

    Reacted to "@Julian Ma FOCIL as ..." with 👍

  • soispoke

    @Ansgar Dietrichs I don’t want to speak for Toni but I’d say some critics were mostly around prioritizing CR/FOCIL for H* And maybe the conditional/unconditional property (but it’s more of a FOCIL parameter)

  • Stefan Starflinger

    Reacted to "ICYMI, we just shipp…" with 🔥

  • Justin Traglia

    Reacted to "Should be fixed shor..." with 🔥

  • Toni Wahrstätter

    Replying to "[Full message cannot be displayed on this version]" Yeah agree, it feels like the majority is for focil and this is what we should then go for as a headliner 👍🏼

  • donnoh | L2BEAT

    Replying to "I think we have broa…" from my convos with optimistic rollups in the context of reducing the challenge period, focil is not seen as a blocker but rather other things mainly related to networking or unknown bugs (concerns mainly coming from offchain labs). i’d love to have a better economic model to understand benefits in terms of economic advantage, mainly in terms of additional cost to attacker to bribe to miss slots (or the IL committee). as a comparison, 6s slots increase the attacker cost by 2x, not sure if FOCIL is more or less

  • Toni Wahrstätter

    Replying to "[Full message cannot be displayed on this version]" Agree with ansgar here though

  • Julian Ma

    Replying to "I think we have broa..." I’m not aware of any other mechanism. The big property FOCIL does not give is CR for MEV txs. The proposed mechanisms for that - multiple concurrent proposers, explored mostly for e.g. Solana - seem to be converging on being very very similar to the FOCIL architecture

  • soispoke

    https://ethereum-magicians.org/t/hegota-headliner-proposal-focil-eip-7805/27604 In the proposal btw we mentioned the tradeoffs (and the critics) explicitly

  • DA | Flashbots

    Replying to "I think we have broa..." There’s quite of bit of consensus in MEV research that FOCIL is a pretty weak design. Worse than unconditional ILs and much worse than some other less fleshed out designs. But the impact on builders is very little. So we’re not blocking.

  • Toni Wahrstätter

    Replying to "[Full message cannot be displayed on this version]" Should now also be considered in light of AA or encrypted mempools as potential EL headliners

  • Julian Ma

    Replying to "I think we have broa..." @DA | Flashbots which other less fleshed out designs do you refer to?

  • Enrico Del Fante (tbenr)

    FOCIL!

  • Justin Traglia

    Reacted to "FOCIL!" with ❤️

  • soispoke

    Reacted to "FOCIL!" with ❤️

  • Marc

    Reacted to "FOCIL!" with ❤️

  • Ansgar Dietrichs

    yes sounds like in the comments as well that people have high confidence in FOCIL the specific mechanism already

  • Mehdi Aouadi

    Reacted to "FOCIL!" with ❤️

  • Iván | Lambda

    Reacted to "FOCIL!" with ❤️

  • DA | Flashbots

    Replying to "I think we have broa..." @Julian Ma some form of splitting auctions into many auctions to have multiple builders construct single blocks.

  • nflaig

    Reacted to "FOCIL!" with ❤️

  • Justin Traglia

    Reacted to "yes sounds like in t..." with 👍

  • Mehdi Aouadi

    Reacted to "yes sounds like in t..." with 👍

  • Matthew Keil

    Reacted to "FOCIL!" with ❤️

  • Francesco

    Replying to "I think we have broa..." There’s less fleshed out and there’s “people have been talking about this stuff for years without anything implementable coming out of it”

  • Ansgar Dietrichs

    I personally think we’d pretty clearly be in a place to make a decision today already, but also fine to wait 2 weeks

  • soispoke

    Reacted to "There’s less fleshed..." with 👍

  • Julian Ma

    Reacted to "@Julian Ma some form..." with 👍

  • Leo

    Replying to "It would be better..." I meant the main bar, the ones below are not normalized, so they are good. But every time the main bar is refreshed we need to look at the number to understand. Is a detail, but I thought it could help.

  • Francesco

    Replying to "I think we have broa..." Imho we should very much consider having the design be unconditional for now, everything else can hopefully be built in the future from the foundation of multiple contributions to the building process

  • felix (eest)

    Reacted to "FOCIL!" with ❤️

  • Julian Ma

    Replying to "I think we have broa..."

  • what I understand

    //eprint.iacr.org/2025/1772 It’s basically FOCIL infra + some small rule changes + potentially encryption That is to say, if we do FOCIL, we could extend it into MCP. FOCIL is a necessary step for it

  • nixo

    bye!

  • donnoh | L2BEAT

    Reacted to "yes sounds like in t…" with 👍

  • donnoh | L2BEAT

    Reacted to "FOCIL!" with ❤️

  • DA | Flashbots

    Replying to "I think we have broa..." @Julian Ma let’s jam in our call next week

  • Julian Ma

    Reacted to "@Julian Ma let’s ja..." with 👍

Key decisions

  • Hegotá headliner selection postponed to next ACDC (Feb 19) for community review period

    headlinerSelection postponed for community review period