What’s up with Rollup

Rollup is one of the hot ideas in smart contract scalability these days. The idea has been around for some time, but…

How Arbitrum Works

Find out how the newly released Arbitrum technology works, and why you should use it.

How Arbitrum Channels Work

Introducing Arbitrum

Arbitrum is an open-source cryptocurrency platform that we’re building at Offchain Labs.

If you’re a smart contract developer, why should you use Arbitrum, rather than Ethereum or some other platform? Because Arbitrum is scalable, private, and trustworthy, while…

The Cheater Checking Problem: Why the Verifier’s Dilemma is Harder Than You Think

A common design pattern in blockchain systems is to have one party do some work and escrow a bond for correct behavior, then invite others to verify the work and take the bond if they catch…

How to choose your validators in Arbitrum

When we talk about Arbitrum, people are intrigued by its performance and privacy. They want to move their smart contracts’ computation and storage offchain, to reduce cost and vastly improve scalability. But they often ask: how should I choose the…