Gas Optimization Audit: Bitkub

Bitkub, a DeFi platform operating on both Ethereum and Layer 2 networks, has undergone a gas optimization audit. The platform manages approximately $1.52 billion in value daily across its Ethereum and L2 deployments. The audit focused on gas efficiency, execution costs, and security. Key findings indicate several areas where gas consumption can be significantly reduced, potentially saving around $1.2 million in daily gas costs if all high-priority recommendations are implemented.

The audit also identified several attack vectors related to gas consumption, including out-of-gas (OOG) denial of service, gas-griefing, front-running via gas-price manipulation, reentrancy, L2 sequencer spam, and unchecked external calls. Prioritized technical recommendations include replacing require statements with custom errors, marking immutable variables, using unchecked for safe arithmetic, batching external calls, and avoiding unchecked external calls. Implementing these changes could greatly enhance the platform's performance and security.