tl;dr: Today we’re unveiling Arbitrum Nitro, the next iteration of Arbitrum, which we’ve been working on for months. It’s built on standard technologies like WASM and Geth, so it’s more EVM-compatible, an order-of-magnitude faster than our current tech, and adds another 0. …


It’s time for another installment of our Inside Arbitrum series, this time about fraud proofs and the role of validators.

The key to the security of any rollup chain is the ability to provide fraud proofs if someone tries to cheat. …


Beginning at 10:14 AM Eastern today (September 14, 2021) and continuing for approximately 45 minutes, the Arbitrum Sequencer was offline. Funds were never at risk, but the submission of new transactions stopped during the downtime. Arbitrum One is still in its beta phase, and we will do our best to…


Before diving into the next steps on our roadmap, we just want to give a quick shoutout to the whole community! It has been an incredible ten days (yes, it’s only been 10 days!) and we are thrilled to be sharing this moment with all of you. …


Now that Arbitrum One is open on mainnet, we’re going to put up a bunch of posts on the internals that make Arbitrum go. This post is an excerpt from Inside Arbitrum, our deep-dive description of how Arbitrum works.

Among optimistic rollups, the most important design decision is how to…


Today’s the day! We’ve opened up Arbitrum One for everyone and couldn’t be more excited to welcome you in! Today’s the culmination of years of work, but in many ways it’s just the beginning. Our vision of scaling Ethereum has been years in the making, but it’s today that we…


It’s been a few weeks since our last update, and we’ve been hard at work readying Arbitrum One for prime time. We’ve now given over 400 projects mainnet access, and dozens of them have successfully completed their deployments. We know that end users have been waiting eagerly for their chance…


It’s been a bit over a month since we opened Arbitrum One to developers, and what a month it’s been! There’s been a surge of activity getting infrastructure stood up, dApps deployed, and assets bridged, readying the Arbitrum One ecosystem for prime time. …


With Arbitrum One now open to developers, we are excited to announce that The Graph’s hosted indexing and querying services are live on Arbitrum One joining other protocols and infrastructure providers including Gnosis Safe and Etherscan supporting the network, with many more infrastructure announcements coming up over the next couple…


Arbitrum mainnet beta has launched for developers. What comes next? Read on.

Arbitrum has — — actually, wait. We’ll get to us in a second, but first let’s talk about you, our amazing community. You’re incredible. We’ve been blown away by your support and both humbled and honored that so…

Offchain Labs

We’re Building Arbitrum, a scaling solution for Ethereum. Learn more at https://offchainlabs.com/ and http://arbitrum.io/.

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store