Arbitrum

Analyze Arbitrum One transactions with Skylens — trace optimistic-rollup executions, decode DeFi calls, and inspect state changes on Ethereum's largest L2.

Arbitrum logoArbitrumarbiscan.io
Chain ID
0xa4b1 (42161)
Native token
ETH

Arbitrum One is the largest Ethereum optimistic rollup by value locked, running the Nitro stack with full EVM equivalence. Its DeFi ecosystem — perpetuals, orderbook DEXes, and lending markets — generates transactions that routinely nest dozens of internal calls, exactly the kind of depth where log-based explorers stop being useful.

Skylens replays the full call tree of an Arbitrum transaction, including L2-specific behavior like ArbGas accounting, and resolves Arbiscan-verified source onto each frame so you can step through the execution at source level.

Open an Arbitrum transaction

Paste a hash on the home page or open it directly:

/tx/arb/{transaction-hash}

Gas is paid in ETH; the ARB token is an ERC-20 governance asset and shows up in token flow like any other token.

Debug & Trace Arbitrum Transactions | Skylens Docs