What Is the Minimum Length of a Typical Challenge Period in an Optimistic Rollup?

The typical challenge period in an Optimistic Rollup is set to a minimum of seven days. This duration is necessary to provide a sufficient window for any interested party to observe the transaction data posted on Layer 1, detect potential fraud, and submit a fraud proof.

The seven-day period is a security measure designed to ensure that even users who are not constantly online have time to participate in the security mechanism.