For a closer look, check out Arbitrum’s Documentation

With Caldera, you can deploy dedicated rollups using the Arbitrum Nitro stack.

Arbitrum Nitro is a battle-tested Optimistic Rollup stack. Arbitrum Nitro powers Arbitrum One, the flagship Arbitrum chain, and Arbitrum Nova, a lower-cost chain targeted towards gaming. Arbitrum Nitro secures over $6 Billion in TVL across chains in production.


  • 10-100x cheaper transactions compared to Ethereum.
  • Ethereum equivalence, with full support for Ethereum smart contracts and developer tooling
  • Faster block times, as fast as 250ms when under high throughput
  • Working fault proofs
  • Optional Support for WASM smart contracts via Stylus
  • Support for further cost reduction via Arbitrum Anytrust or Celestia DA
  • Ability to choose your rollup’s native token


For more info, view the Anytrust docs here

Arbitrum AnyTrust, a variant of Arbitrum Nitro technology, adopts a mild trust assumption to lower transaction costs. Unlike standard Arbitrum where all nodes require access to every Layer 2 transaction data, AnyTrust relies on a Data Availability Committee (DAC) to store and provide data on demand, assuming at least two members are trustworthy for data availability. It employs Data Availability Certificates (DACerts) to guarantee data availability until a specified expiration time.

With Anytrust, you can achieve a further 10-100x cost decrease compared to a standard rollup.

This setup allows for more cost-effective transaction processing while ensuring data availability, aiding in creating personal AnyTrust and Rollup chains with an infrastructure capable of significantly higher capacity than Ethereum, yet still leveraging Ethereum’s security framework.


For more info, view the Stylus docs here

Arbitrum Stylus is an advancement to the Arbitrum Nitro technology, introducing a secondary, co-equal WASM virtual machine alongside the existing Ethereum Virtual Machine (EVM) on the Arbitrum chains like Arbitrum One, Arbitrum Nova, and Arbitrum Orbit. This new virtual machine enhances the programming environment, enabling developers to write and deploy smart contracts using languages like Rust, C, or C++.

WASM execution is significantly more performant (Over 10x less gas used) and allows developers to use battle-tested Rust, C++, and C libraries in their smart contracts.

Want inspiration?

Check out the OffchainLabs/Awesome-Stylus repo on Github for examples of smart contracts with Stylus