infrastructure
Arbitrum
Ethereum scaling technology for high-throughput chains and applications.
Opens on hoodl2.com.
Project video
0:36Read the transcript · Narrated with captions
Transactions need somewhere to run, applications need shared state, and the result needs a place to settle. Arbitrum is an Ethereum scaling ecosystem based on rollup technology. Robinhood Chain uses the Arbitrum Orbit stack to operate as an Ethereum-settled layer-2 network. A chain turns separate transactions into shared state. The execution layer handles the work, while the settlement layer anchors the result. Explore Arbitrum on Hood L two. Find the project links, its full description, and the sources behind the listing.
HoodL2 produced this overview independently. It is not an endorsement. Check the listing sources for current details.
HoodL2 project profile6 sourcesReviewed 7 Sept 2026
Overview
Arbitrum is an Ethereum scaling ecosystem based on rollup technology. Robinhood Chain uses the Arbitrum Orbit stack to operate as an Ethereum-settled layer-2 network.
Uses
- Understanding the technology and settlement model beneath Robinhood Chain
- Assessing the Arbitrum Expansion Program revenue share and ARB's exposure to the chain
- Context on why the chain behaves like a standard Arbitrum-stack L2
Risks and limitations
- The 10% share applies to net protocol revenue, so costs and subsidies affect its size.
- The revenue share links Arbitrum ecosystem income to Robinhood Chain activity.
Key facts
- What it is
- Arbitrum is an Ethereum scaling ecosystem based on rollup technology. Robinhood Chain uses the Arbitrum Orbit stack to operate as an Ethereum-settled layer-2 network.· 90%§
- Technology
- Robinhood Chain is a dedicated Arbitrum chain built on the Arbitrum stack (Orbit / Dedicated Chains, Nitro), settling to Ethereum.· 90%§
- Revenue split
- Of that 10%, a reported 8% goes to the Arbitrum DAO treasury and 2% to the Arbitrum Developer Guild.· 82%§
- Inherited properties
- The chain uses Arbitrum’s EVM tooling and Ethereum settlement, with configured block times and preconfirmations around 100ms.· 82%§
- ARB and revenue sharing
- The revenue share accrues to the Arbitrum ecosystem. It does not establish a direct payment entitlement for each ARB holder or explain every ARB price move.· 72%§
Key features
Nitro execution
Robinhood Chain uses Nitro and EVM development tools. Its approximately 100ms preconfirmations are distinct from final Ethereum settlement.
Revenue sharing
The Expansion Program allocates 10% of net protocol revenue to the Arbitrum ecosystem.
Contract compatibility
Ethereum tooling and contracts can be adapted for deployment. Builders must check documented network differences and test integrations.
People and accounts
Co-founded Offchain Labs and works on Arbitrum’s technical design.
Leads Offchain Labs, which develops Arbitrum technology.
Publishes ecosystem and technology updates, including Robinhood Chain coverage.
History
2026-07-01
Robinhood Chain mainnet launches on the Arbitrum stack
Arbitrum confirmed Robinhood Chain as a dedicated Arbitrum chain settling to Ethereum, live at mainnet launch.
2026-07-01
Expansion Program revenue share applies to Robinhood Chain
Under the Arbitrum Expansion Program, Robinhood Chain routes 10% of net protocol revenue to the Arbitrum ecosystem (8% DAO, 2% Developer Guild).
Frequently asked questions
- What is Robinhood Chain built on?
- It uses Arbitrum technology, including Nitro, and settles to Ethereum. Its approximately 100ms preconfirmations precede Ethereum settlement.
- Does Arbitrum earn revenue from Robinhood Chain?
- The Arbitrum Expansion Program allocates 10% of protocol net revenue: 8% to the DAO treasury and 2% to the Developer Guild.
- Is there an Arbitrum token needed to use Robinhood Chain?
- No. Robinhood Chain has no native token and gas is paid in ETH; ARB is Arbitrum's own governance token and is not required to transact on Robinhood Chain.
Related projects
Robinhood Chain
CoreEthereum Layer 2 for tokenized assets and financial applications.
Robinhood Chain
CoreEthereum Layer 2 for tokenized assets and financial applications.
Robinhood Chain Bridge
CoreCanonical Ethereum-to-Robinhood Chain bridge with Arbitrum-style settlement.
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