Decoupled Consensus Mumbai L1 R&D Workshop Breakout · Part 1 · 2 November 2026 · Room 205A
Together all week. Working on DC? Let’s meet. Telegram: DC breakouts · any free roomSame page today.Newest developmentsOpen questionsYour concerns
How we got hereSteps ahead2022 – 25ResearchOct 2025CambridgeNot BFT-onlyNov 2025Devconnect ARGFirst designsJan 2026BerlinStrawmapMar 2026ethresear.chDC publicOct 2026CambridgeWorkshop21 Oct 2026EIP-84532 Nov 2026MumbaiL1 R&D WorkshopWe are here I* headlinerdecision Multi-clientdevnets Forkcandidate MainnetYears of researchGoldfish · RLMD-GHOST · TOB-SVD · 3SF · Majorum Not BFT-onlyPlus a stabilization gadget First designs validated DC goes publicUnblocking faster finality with decoupled consensus Cambridge is online Every talk: slides and recordings consensus.ethereum.foundation/cambridge EIP-8453 Draft, opened by Ben We are hereMumbai L1 R&D Workshop

Why we need decoupled consensus

Post-quantum readiness

Small committee, PQ signatures as they are

Fixing Gasper

Reorg-resilient chain, separate from finality

Fast finality, quick slots

At least 4× faster, off the critical path

Decoupled consensus, as it stands

One transaction, inclusion to finality

~3m 48sexpected · today ~16 min

included
Inclusion6 sec
Confirmation12 sec
Wait for its round54 sec
Justification1m 12s
Finalization1m 24s

Expected values · finality.watch model · 8-slot rounds · ~1.1M validators · 12-second slots

DC lays the rails. YOU SHALL NOT PASS DC lays the rails. 8453 DC EXPRESSI* · FASTSUPER DENSECRUSH LOADNEXT TRAINL* · ONE-ROUND FINALITY AVAILABLE CHAIN FINALITY GADGET HARDENING INCENTIVES NETWORKING Ben 4× faster finalityoptimal inactivity leakPQ heartbeataccountable safetyheight progresscommittee self-selectiondynamic availabilityvalidator anonymity50% fault toleranceminority vetohealingsecret leader electionlean stateleak fairnessperfect reward fairnessjust one more property
DC lays the rails. GlamsterdamFast confirmation I*Decoupled consensus L*One-round finality 8453Finality in seconds2-second slots
Today: the core of each layer Available chainSafe confirmationsSafe honest proposalsFinality gadgetAccountable safetyNo honest slashingFinality livenessHardeningBounded asynchronyHealingIncentivesLeak fairnessIncentive compatibleNetworkingSmall changeForward compatibleUses the whole roundDegrades gracefully
This afternoon 13:30Why DCYannGoalsRobertoGoldfishFrancescoNetworkingSukun & Yann15:15SpecsMikhailPrototypingTerenceQ&A
Appendix
THE GATEWAY OF I* Everything we want from consensus YOU SHALL NOT PASS Ben THROUGH THE GATE · I* NEXT STOP · 1RF AND BEYOND 4× faster finality one-round finality accountable safety quick slots dynamic availability PQ readiness optimal inactivity leak healing height progress leak fairness just one more property small network change We can have it all. Just not all at once. Ben, product owner of DC Was there 3,000 years ago Phase 0, in crypto years
What do we say to the god of scope creep? Not in I*. There’s always 1RF.
I WAS THERE, 3,000 YEARS AGO “JUST ONE MORE PROPERTY” SOUNDED REASONABLE THEN TOO