Published inOffchain Labs·Sep 11Offchain Labs & Espresso Systems: Transaction Ordering Technology to Ethereum RollupsTLDR: We’re partnering with Espresso Systems to bring decentralized and open shared sequencing technology across Ethereum rollups — improving safety, security, and the user experience across networks. Our team is contributing key research and resources towards our previously proposed transaction-ordering policy, Timeboost, and opening the doors to allow any network…Blockchain3 min readBlockchain3 min read
Published inOffchain Labs·Aug 3BOLD, Permissionless Validation for Arbitrum ChainsWritten by Ed Felten and Raul Jordan — August 3, 2023 TL;DR: We are announcing BOLD (Bounded Liquidity Delay): a dispute protocol we invented at Offchain Labs that can enable permissionless validation for Arbitrum chains. The code and specification are now available on Github here! BOLD allows Arbitrum-technology chains to: …Arbitrum4 min readArbitrum4 min read
Published inOffchain Labs·May 24Stylus in Action: Lifecycle of a Stylus ContractThis past February, we at Offchain Labs announced Stylus, an upgrade to the Arbitrum tech stack that will be ready later this year. Since then, we’ve been hard at work building the technology; we’ve been ambitiously tackling one of the most crucial aspects of the Stylus stack — its fraud…Stylus8 min readStylus8 min read
Published inOffchain Labs·May 18Post-Mortem Report: Ethereum Mainnet Finality (05/11/2023)Date: 2023/05/12 Authors: Nishant Das, Terence Tsao, Preston Van Loon, Potuz, Kasey Kirkham, James He Status: Mitigated. Investigation complete. Prysm v4.0.4 released with fixes. Network: Mainnet Summary On Thursday, 2023–05–11 around 20:19 UTC, Ethereum’s Mainnet network suffered a significant lack of block production which led to a temporary delay (4 epochs)…Prysm6 min readPrysm6 min read
Published inOffchain Labs·May 11Prysm Updates Q2'23Hi Friends — welcome to the latest installment of our quarterly Prysm updates! Here’s a recap of some roses and thorns from Capella along with some insight into what the Prysm team’s working on now. …Ethereum Blockchain8 min readEthereum Blockchain8 min read
Published inOffchain Labs·Apr 19Validator Performance TrackingTl; dr: We explain in detail the different components that make up an Ethereum validator’s reward. …Prysm22 min readPrysm22 min read
Published inOffchain Labs·Mar 30Deposits Locked, Withdrawals Mintedtl; dr: This article presents a high-level technical overview of the upcoming validator withdrawal process in Ethereum Proof of Stake. The long-awaited Capella/Shanghai hard fork will introduce the ability to withdraw the validator balance into an Ethereum address. …James He5 min readJames He5 min read
Published inOffchain Labs·Mar 1Time boost: a new transaction ordering policy for Arbitrumtl; dr: We’re proposing a modified transaction ordering policy for the Arbitrum sequencer, adding a “time boost” to the current first-come, first-served policy, where a transaction could pay a priority fee to get a small advantage or “time boost” in the ordering. …5 min read5 min read
Published inOffchain Labs·Mar 1Arbinauts! We’re heading to ETH Denver! 🚀Pack your luggage and space helmets Arbinauts 🚀 The Arbitrum team is heading to ETH Denver from Thursday, March 2nd — Sunday, March 5th and we’re excited to bring our community together to explore, connect and have fun! We welcome all to join us on this fun Arbinaut adventure! Below you can find information related to all Arbitrum…3 min read3 min read
Published inOffchain Labs·Feb 21Efficient and Robust Rollup Batch Posting StrategyShort Overview: Non-technical introduction to the question of timing when to post layer two calldata on the Ethereum base layer. Efficient and robust posting strategy that minimizes the costs of posting data and keeps delays low. The Ethereum blockchain satisfies high security and decentralization requirements, but it is not scalable…5 min read5 min read
