ROP-5 meetup #2
Date
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Tags
Outline
- Presentations
- Terence
- More determined to look into ePBS since the mev-boost attack described in this post-mortem
- Single slot PBS using attester committee note
- Two slots PBS with unconditional payment
- first (intermediate) slot: commit to header + attest
- second slot: broadcast block + attest
- ePBS design space notes
- Fork choice is the hardest part 🙃 need to discourage proposer/builder collusion, unbundling attack with proposers willing to slash themselves
- Re-orging late block? might not work with collusions, but (block, slot) would help
- “Headlock” to discourage unbundling, by Mike Neuder and Fradamt
- Extensions: IL/MEV Burn
- Open questions
- Redundant proposer if one proposer is offline? because then the builder slot is wasted…
- Julian
- New paper on “Invariance properties of MEV” by Alan Guo (Jump) https://arxiv.org/abs/2304.11010
- Cross-domain trading and shared sequencing benefits https://hackmd.io/@EspressoSystems/SharedSequencing#Security-benefits
- Focus areas
- MEV quantification (Davide)
- Theoretical modeling
- Empirical quantification
- Sandwich example
- Other strategies
- Backrun user tx
- cex-dex arb
- dex-dex arb
- backrun oracle update?
- stat arb?
- Thomas
- OFAs, MEV blocker/MEV share, AA ⇒ orderflow fragmentation?
- Withdrawals & MEV
- Next time
- ePBS design fork-choice deep dive (invite francesco & mike, dan & co)