The Rollup Coaster is a bi-weekly newsletter that dives into the fascinating world of Ethereum, exploring the latest in rollups, zero-knowledge proofs, based sequencing/preconfirmations, MEV/PBS/SUAVE, and much more.

This edition is written by Taiko’s Community Advocate Jünger.

Hold on tight! 🎢

Disclaimer: This newsletter is neither financial advice, nor is indicative of Taiko’s position on any of the material presented. Please do your own research.

• We left EthCC behind last week. There were tons of different events on tons of different topics. The topics currently discussed in the ecosystem were preconfirmations, based rollups, execution auctions and ePBS.

rain & coffee

@0xRainandCoffee

EthCC? You mean ePBS, APS, EA, ET, based rollups and preconf summit 2024?

29

1:37 PM • Jul 17, 2024

• Based preconfirmations have been a popular topic lately. Without changing the Ethereum protocol itself, it allow users to make transactions fast without being limited to a 12-second block time on based rollups. Based preconfirmations are now live on Helder testnet.

Justin Drake

@drakefjustin

based preconfs, live on testnet Helder

→ execution preconfs on based rollups @puffer_finance, @taikoxyz
→ execution preconfs R&D by @LimeChainHQ, @lu_ban_, Switchboard from @NethermindEth, @primev_xyz
→ L1 inclusion preconfs by Bolt from @chainbound
→ staking operators

291

6:36 AM • Jul 13, 2024

• Starkware’s Stwo prover now can prove 620,000 hashes in a second with Circle STARKs. They measured throughput for proving invocations of the Poseidon2 hash over M31 field on a MacPro M3.

• First ZK proof has been verified on Bitcoin with Stwo prover by Starkware.

• Cysic team shared a paper called “Jolt-b”. The initial Jolt versions had limitations due to their use of Spartan and Hyrax systems, which required complex elliptic curve operations and were impractical for recursive verification. Jolt-b addresses these issues by adopting the Basefold commitment scheme and modifying the Plonky2 protocol.

• Nexus Labs announced Nexus 2.0 zkVM. This version uses Jolt's arithmetization developed by a16z for the prover frontend. In addition, Hypernova (Nova+Sumcheck+CCS) is used for prover backend.

• Gevulot announced ZkBoost: Proof Supply Chain Abstraction. The purpose of ZkBoost is to connect all proof networks such as proof marketplaces, prover networks and proof aggregators.

• Polygon announced new proving system Plonky3.

• Chainsafe shared a research on GKR, an interactive proof protocol for arithmetic circuit evaluation.

• Warlock 

• Succinct and Nebra announced their partnership.

• Jolt roadmap update.

• STRK staking coming to Starknet.

• Cairo v2.7.0 is coming.

• CryptoHack(zk learning platform) added new challenges to the platform.

• World Chain announced developer preview.

• Reth 1.0.1 is out.

• Scroll’s mainnet weekly updates.

• Based Preconfirmations with Multi-round MEV-Boost. This research propose multi-round MEV-Boost, a modification of MEV-Boost that enables based preconfirmations by running multiple rounds of MEV-Boost auctions within a single slot.

• Preconfirmations under the NO lens.

• 

  ethresearchbot

  @ethresearchbot

  

  Leaderless and Leader-Based Preconfirmations
  
  By:
  - chrmatt
  - murat
  
  ethresear.ch/t/19971
  
  Highlights:
  - Leader-based preconfirmations offer almost a 100% guarantee with a single preconfirmation, simplifying protocol interactions.
  -Leaderless preconfirmations create a

  

  ethresear.ch

  Leaderless and Leader-Based Preconfirmations

  Joint work with @murat. Thanks to @The-CTra1n and @bemagri for reviewing and providing valuable feedback. Introduction A preconfirmation (preconf) for the context of this article refers to a promise...

  39

  9:06 PM • Jul 4, 2024

• teeVM has arrived. Proofcast Labs announced their new RISC-V compatible teeVM. Similar to general zkVM, it’s allow to generate proofs of any Rust/Go/C/C++ code.

• “Intel TDX Security and Side Channels” research posted in Flashbots forum. The research explains TDX spesific security vulnerabilities.

• 

  Poetic Technologies

  @Poetic_Tech

  

  We are excited to present Autonomous TEE Manifesto as Poetic Technologies.
  
  poeticte.ch/posts/autonomo…
  
  Here is our vision of an open-source software and hardware architecture for confidential computation, particularly TEEs.
  
  Special thanks to @cwgoes, @buchmanster, @sbellem,

  

  121

  11:51 AM • Jul 8, 2024

• Primev announced preconfirmations on mev-commit.

• Searcher Competition in Block Building by Mamageishvili et. al. In this paper, they proposed a new architecture that allows more value to be captured by block building components.

• Flashbots opensourced Rbuilder, an Ethereum block builder written in pure Rust.

• 

  terence

  @terencechain

  

  New post on fork choice attacks in epbs: ethresear.ch/t/fork-choice-….
  
  I covered existing write-ups on epbs post-anti, ex-anti, and new builder reorg and withholding attacks, including the new boost values and why some attacks are more useful than others. Feedback welcome.

  

  ethresear.ch

  Fork Choice Attacks and Protections in EPBS

  Introduction This post explores fork choice attacks through the perspective of ePBS, focusing on the new fork choice boost parameters and the rationale behind their design. We’ll begin by examining...

  53

  2:40 PM • Jul 2, 2024

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