Implementation Highlights

Optimistic Rollup Using OP Stack: X employs an Optimistic Rollup solution built on the OP Stack to enhance transaction throughput and reduce costs while maintaining security.

• Mechanism: Transactions are processed off-chain, assuming they are valid by default. Periodic proofs are submitted to the Ethereum mainnet to ensure the integrity and validity of transactions.

• Benefits: This approach significantly increases transaction speeds and reduces costs, making financial services more accessible and efficient.

Custom Gas Token (xUSD) Implementation: xUSD, a USD-pegged stablecoin, is used as the native gas token within the Layer 2 network.

• Purpose: Using xUSD for transaction fees simplifies the user experience by eliminating the need for multiple cryptocurrencies and providing a stable and predictable cost structure.

• Integration: xUSD is directly integrated into the modified Ethereum Virtual Machine (EVM) within the OP Stack, ensuring seamless transactions and consistent gas pricing.