Offchain Labs, Espresso Systems link up on transaction ordering tech

Offchain Labs and Espresso Systems will integrate both Timeboost and decentralized sequencer technology with the Arbitrum technology stack

article-image

patpitchaya/Shutterstock modified by Blockworks

share

Ethereum scaling solution Offchain Labs is partnering with blockchain infrastructure company Espresso Systems to bring Timeboost — a transaction ordering technology — to life. 

The teams will also work on integrating both Timeboost and the Espresso Sequencer with the Arbitrum technology stack. 

The Espresso Sequencer is a decentralized sequencing layer that layer-2s can choose to opt into, Ben Fisch co-founder and CEO of Espresso Systems told Blockworks.

“Having Offchain Labs’ support of this vision is a strong signal to us and to the Ethereum community that even teams with strong technology affiliations of their own will continue to prioritize permissionless approaches to coordination and technology,” Fisch said.

What is Timeboost?

Timeboost is intended to improve existing first-come-first-serve (FCFS) tendencies and become more optimized for maximum extractable value, or MEV.

Existing Arbitrum chains do not earn any value from MEV, Timeboost is designed so that these chains can internalize the value of ethical MEV whilst simultaneously preventing harmful behaviors such as front-running. 

This means that rollup solutions that want to capture value from ethical MEV practices like arbitrage, Ed Felten co-founder and chief scientist of Offchain Labs told Blockworks. 

“It does this by using a special type of sealed-bid auction so that transactions can bid for position within a block. Because the auction is sealed-bid, users cannot front-run others’ transactions,” Felten said.

Timeboost collects fees generated by the chain so that it can identify and manage revenue disposition, Felten explains. 

“Transactions submitted to the chain can optionally carry a bid, which is a premium that the transaction is agreeing to pay for each unit of layer-2 gas it uses, above the regular layer-2 gas price,” he said. 

Within a block, bids are sorted from highest to lowest, and higher transaction bids will be placed in an earlier sequencer block.

The team at Offchain Labs has been looking into Timeboost transaction ordering for over six months and has published technical papers on their progress. 

“We are now working alongside Offchain Labs on further research around Timeboost and undertaking implementation and integration of the module,” Fisch said.

Fisch added: “The final version of Timeboost will likely be a modification of the protocol described in the paper, favoring a discretized approach to ordering rather than continuous.”


Get the news in your inbox. Explore Blockworks newsletters:

Tags

Decoding crypto and the markets. Daily, with Byron Gilliam.

Upcoming Events

Marina Bay Sands Singapore

October 7, 2026

DAS Asia is a a single-day summit at Marina Bay Sands Singapore featuring conversations between the builders, investors, and global leaders are shaping the trajectory of the digital asset ecosystem in Asia & North America.

Hilton Park Lane, London

November 10-11, 2026

DAS London is a two-day summit at the Hilton Park Lane in London featuring conversations between the builders, allocators, and policy makers who are shaping the trajectory of the digital asset ecosystem in the UK, Europe, and North America.

recent research

Onchain Gacha Cover Image.png

Research

Onchain gacha platforms sold $284.3 million of digital card packs in July 2026, and Collector Crypt accounted for more than half of that activity. However, it buys back 92.9% of what it sells, which leaves it with a third of the category's revenue on more than half of its volume, and a quarter of its activity arrives through partner apps whose users it does not own. Courtyard runs the opposite model, a consumer app selling smaller packs to thousands of retail buyers who resell the cards to each other, and it took 59.7% of category revenue while growing through a month the category spent contracting. This report compares the five largest platforms on gross activity, buyback intensity, revenue after buybacks, consumer composition, marketplace liquidity, and distribution ownership, and finds Courtyard the strongest performer as of July 2026, with the qualification that none of the five discloses inventory costs or resale proceeds, so no platform in the category can yet be shown to be profitable.

Newsletter

The Breakdown

Decoding crypto and the markets. Daily, with Byron Gilliam.

Blockworks Research

Unlock crypto's most powerful research platform.

Our research packs a punch and gives you actionable takeaways for each topic.

SubscribeGet in touch

Blockworks Inc.

133 W 19th St., New York, NY 10011

Blockworks Network

PodcastsNewslettersEventsRoundtablesAnalytics