Optimism is a network built on top of Ethereum. It lets you send and receive ETH with lower fees and faster confirmation times than the main Ethereum network.

Optimism processes transactions outside the main Ethereum network, then submits a summary of those transactions back to Ethereum for final verification. This keeps transactions fast and affordable while still relying on Ethereum's security to protect them.

• Lower fees than the main Ethereum network.
• Faster transaction confirmation.
• The same underlying security as Ethereum, since transactions are ultimately verified on the Ethereum network.

Bitso supports ETH deposits and withdrawals directly on the Optimism network. You can send ETH to Bitso through Optimism, or withdraw ETH from Bitso to any wallet or protocol that supports the network, with lower fees and shorter wait times than using the main Ethereum network.