Arbitrum Blog

Case Study: How Galxe Leverages Arbitrum Orbit to Power Gravity Alpha Mainnet

What is Galxe? Galxe is a decentralized super app designed to empower developers, brands, and communities to build in Web3. Its comprehensive product suite leverages modular AI, digital identity, and blockchain technology and creates secure, advanced, user-friendly applications that enable self-sovereign digital identity management.  What is Gravity Alpha Mainnet? Gravity

How WeatherXM is paving the way for DePIN on Arbitrum

What is WeatherXM WeatherXM is building a decentralized weather station network, with over 6,000 stations deployed in 80+ countries. WeatherXM uses the blockchain to coordinate weather data collection and rewards users with $WXM tokens based on the data quality they provide and where the weather stations are located. The

The Basics of Adaptive Pricing

Today, pricing on the blockchain is designed to manage demand, recover execution costs, and create revenue for the chain owner. When the blockchain operates near capacity, transaction prices increase, often reflected in gas fees. As gas fees rise, fewer people will submit transactions, which prevents the system from overloading. Running

Arbitrum Stylus Explained: How Conduit Helps You Unlock Its Full Potential for Your Rollup

Arbitrum Stylus equips your rollup to support more powerful apps and expands its developer talent pool by millions. How? By bringing WebAssembly (WASM) onchain. Stylus makes it possible for developers to write smart contracts in popular languages like Rust, C, and C++, in addition to Solidity. Besides supporting more widely

How Superposition is transforming onchain rewards with Stylus

What is Superposition? Superposition is a decentralized finance (DeFi) protocol that uses Concordia’s adaptive risk model to enhance security, efficiency, and transparency for borrowing and lending. By dynamically managing risk, Superposition mitigates systemic vulnerabilities that are found in static risk models, protecting user funds and fostering confidence in the

Stylus Sprint: Unlock new opportunities on Arbitrum

Quick Summary The Stylus Sprint is live and will offer 5M in ARB grants to developers creating innovative blockchain solutions using Arbitrum Stylus. This sprint supports teams working with Stylus’s Web Assembly (WASM) VM, which will enable coding in any WASM-compatible language (e.g., Rust). Projects will be reviewed

How Renegade Leverages Stylus For Their Onchain ZK Dark Pool

What is Renegade? Renegade is a new type of decentralized exchange (DEX), an onchain dark pool, bringing better trade execution to decentralized finance (DeFi) markets. In traditional finance, dark pools enable large institutional investors to trade assets with high privacy for minimal market impact. Renegade brings dark pools onchain through

AggLayer vs. L3s

As blockchain ecosystems evolve, new infrastructure layers are emerging to address the growing need for scalability, interoperability, and efficiency. Blockchain development teams have turned toward different approaches to tackle these challenges.  In a panel discussion at Permissionless III, Harry Kalodner, CTO of Offchain Labs, and Mark Boiron, CEO of Polygon

What is blockchain technology?

Blockchain technology is something that has been commonly talked about but widely misunderstood. It is often said in the context of cryptocurrency, Bitcoin, or even decentralization. But what exactly is the blockchain, and why should you care about it? What exactly is blockchain?  At its most basic level, blockchain refers

A guide to understanding blockchain Layer 2s (L2s)

Have you ever wondered what the buzz is about when people mention “Layer 2” or “L2” in the crypto space? It's not as complicated as it sounds. Let's dive in and demystify what a “Layer 2” blockchain is and how it differs from a “Layer 1”

Arbitrum Stylus: Now Live on Mainnet

Since the public launch of Arbitrum One on August. 31, 2021, the Arbitrum ecosystem has equipped developers with flexible tools to unleash their imaginations and build more powerful, efficient and original products on the blockchain. Today's activation of Stylus on Arbitrum One and Nova mainnets is a milestone

Announcing Bridged USDC as a Custom Gas Token for Orbit Chains

On January 24 of this year, Arbitrum announced custom gas token support for Arbitrum Orbit chains, allowing Orbit chains to charge gas fees using an ERC20 token of their choice, including their own tokens. Bridged USDC is now supported as a custom gas token on Arbitrum Orbit chains! This milestone

A quick introduction to Arbitrum Orbit

If you want to build your own application on the blockchain look no further than Arbitrum Orbit. Arbitrum Orbit allows users to create their own customizable Arbitrum Rollup or Arbitrum AnyTrust chain that is compatible with Ethereum.  Founders and developers will have the option to configure various components of their

Case Study: Xai and Arbitrum Orbit Revolutionize Onchain Game Publishing

Blockchain technology can revolutionize the gaming industry by decentralizing ownership and reshaping in-game economies. That gaming revolution will be built on blockchain infrastructure that makes onchain gaming as intuitive as Web2 games. Enter Xai, the pioneering Layer 3 solution for AAA gaming, powered by Arbitrum’s cutting-edge scaling technology. Xai:

A beginner’s guide to Arbitrum products

So, you’re new to the blockchain technology world and you have just learned a little bit about Bitcoin and Ethereum. Then, during your research, you came across Arbitrum, and you’re wondering who these people are. To simplify, Arbitrum is a suite of technological innovations designed to scale Ethereum.

Welcome to the Stylus Blitz Hackathon

Stylus is live on Arbitrum Sepolia! And we can’t wait for builders to experiment. We’re thrilled to announce the Stylus Blitz Hackathon to inspire developers to leverage the power of Stylus contracts. With Stylus set to go live on Arbitrum Sepolia on June 17, 2024, this is your

Introducing Frame It: An Arbitrum x Farcaster Buildathon

We’re excited to announce that Arbitrum transaction support is now live on Farcaster! To celebrate Arbitrum’s integration on Farcaster, we’re hosting Frame It: A Buildathon for developers to create Frames, with $500,000 in retroactive rewards. Starting now you can build Frames with direct Arbitrum transaction support

Arbitrum BOLD Testnet Live: The Next Step in Decentralization

Written by Raul Jordan, Derek Lee, David Dennis Offchain Labs is thrilled to announce another milestone in the evolution of Arbitrum: the testnet availability of Arbitrum BOLD — the next-generation dispute resolution protocol with working, interactive fraud proofs for optimistic rollups. Building upon the foundation laid in our original announcement of

ArbOS 20 “Atlas” Now Live: Bringing Ethereum Dencun Support to Arbitrum Chains

Written by Terence Tsao and Lee Bousfield — March 14, 2024 We’re elated to announce the much-anticipated release of ArbOS 20, affectionately dubbed “Atlas.” This milestone marks a significant leap forward for the Arbitrum ecosystem, introducing Ethereum Dencun support (EIP-4844, EIP-1153, EIP-5656, and EIP-6780) to Arbitrum chains, paving the way

Introducing Arbitrum Arcade

Introducing the Arbitrum Arcade, an Onchain Gameathon designed to showcase Web3's most innovative gaming experiences, provide exposure and prizes to up-and-coming content creators, and bring in-game achievements onchain with Clique, built on top of EAS (Ethereum Attestation Service). Arbitrum Arcade will kick off on March 11th through the

Why I’m Still Optimistic About Optimistic

Arbitrum uses an optimistic rollup protocol. People often ask why we chose optimistic for Arbitrum, and whether we expect Arbitrum to switch to ZK proving. I have written about this before, but that was almost two years ago. Here’s my current personal view. Others may disagree. I’m a

Arbitrum Odyssey: Reignited

Tldr: The Arbitrum Odyssey is back, REIGNITED! In collaboration with Galxe, you’ll go through a 7-week excursion that’ll have you exploring some of the biggest communities in the Arbitrum ecosystem and collect custom badges, created by Ratwell and frens, marking checkpoints throughout your journey. Key Takeaways: * Arbitrum Odyssey:

Stylus Now Live — One Chain, Many Languages

Written by Rachel Bousfield, Austin Marrazza, David Dennis — August 31, 2023 TL;DR: Today we released the code and public testnet for Arbitrum Stylus, allowing developers to use both traditional EVM tools and WASM-compatible languages like Rust, C, and C++ to build applications on Arbitrum Nitro chains. In addition, by

Arbitrum Orbit AnyTrust Chains

Written by Lee Bousfield and Olivia Jurkowitz — August 17, 2023 TL;DR: Today we’re making it easier than ever to launch Arbitrum Orbit AnyTrust chains. You can now use the Orbit documents and deployment portal to create a devnet AnyTrust chain that hosts EVM-compatible smart contracts. Orbit Anytrust chains

BOLD, Permissionless Validation for Arbitrum Chains

Written 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:

USDC to Come Natively to Arbitrum

Circle is launching USDC natively on Arbitrum on June 8, 2023! Keep reading to learn more about this launch and how to migrate liquidity from “bridged USDC” to native USDC. Native to Arbitrum USDC issued by Circle will be native to Arbitrum. This will be the official version of USDC

Arbitrum Nitro: one small step for L2, one giant leap for Ethereum.

The time has come Arbinauts. Arbitrum One has now been fully migrated to the Nitro stack! Ahhhhh! Yes, it’s true, Arbitrum One is now running on Nitro — increased throughput, lower fees, next generation rollup architecture is happening, and it’s all live now on Arbitrum One mainnet. This is