This section of the docs outlines in detail how the Superbridge integrates with chains built with Arbitrum Nitro. Chains built with this tech stack include L2's like Arbitrum One, Arbitrum Nova and Frame, as well as Orbit L3's.
A deposit is a transaction initiated on the layer 1 blockchain (e g. Ethereum Mainnet) and executed on the layer 2 (e.g. Arbitrum Nova), read more.
Withdrawals are cross domain transactions initiated on the layer 2, and finalized by a transaction executed on the layer 1, read more.
For a small fee (to cover gas costs) when initiating your withdrawal we'll handle relaying your withdrawal to the base chain, read more.