Arbitrum One Chain
An optimistic rollup Layer 2 for Ethereum, leading in DeFi TVL with advanced governance features.
What is Arbitrum One Chain?
Arbitrum One, live since 2021, batches up to 40,000 TPS off-chain with 250ms block times, securing $15 billion TVL through fraud-proof challenges resolvable in 7 days. It has $300 million quarterly revenue from fees.
This L2 chain supports 800+ dApps, including GMX for perpetuals trading $500 million daily volume, and integrates Stylus for Rust/WASM contracts deployed since 2024.
Related Terms
Lightning Network
The Lightning Network is a layer-2 scaling solution for Bitcoin that enables fast, low-cost transactions off-chain while leveraging Bitcoin’s blockchain for security and final settlement.
TWAP (Time-Weighted Average Price)
An average price calculated over a specific time period to reduce volatility impact.
Nonce of Ethereum Account
A unique transaction counter associated with an Ethereum account to ensure each transaction is processed only once, preventing replay attacks.
Mainnet
The primary, public blockchain network where real-world transactions and digital assets are processed.
Liquidation (Lending)
The automated sale of a borrower’s collateral when its value falls below a protocol’s required threshold.
Primary Dealers
Designated financial institutions authorized to trade directly with the Federal Reserve Bank of New York in government securities, numbering 24 as of 2025.