Base smart contract audits
Base is an OP Stack L2, so contracts there face the same code risks as mainnet plus rollup-specific ones. A HYDN Base audit covers sequencer downtime and oracle staleness, deposits and withdrawals through the L1 bridge contracts, address aliasing on L1 to L2 calls, and the fast block times that change any logic measured in blocks.
Base-specific risks we check
- Sequencer status. Prices stop updating if the sequencer is down. Lending and perps protocols should check sequencer uptime before trusting an oracle and allow a grace period on restart.
- Block-based timing. Base produces blocks far faster than mainnet. Durations written as block counts for mainnet will be much shorter on Base.
- Cross-domain messaging. Contracts that accept messages from L1 must verify the cross-domain sender, not just
msg.sender, and must account for address aliasing on deposits from L1 contracts. - Withdrawals. Funds moving back to L1 pass through a proving and challenge period. Protocol logic should reflect that delay.
- Integration choices. Many Base protocols are new and integrate with other new protocols. Each integration’s maturity is part of the risk.
The rest of the audit
The standard HYDN audit process applies in full, from scoping against a commit hash to the final report and certification.
Frequently asked questions
Is Base different enough from Optimism to matter?
Both run the OP Stack, so most rollup-level considerations are shared. What differs is the ecosystem: which oracles, DEXs and tokens your contracts integrate with, and how those behave on Base.
Do withdrawals to L1 affect our contracts?
If your protocol moves funds to L1, the withdrawal period and proving steps have to be reflected in your logic. Users should never be told funds are available before they are.
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