If the command returns nothing, the patch is not applied.

Since the identifier is "patched," it signifies that a specific bug or security flaw associated with that build has been mitigated. Below is an informative framework on how such patches are typically structured and why they are critical in software maintenance. Understanding Software Patching (Build: 3d7e7a9bpnach)

Check the package version against the advisory:

The code refers to the unique CRC (Cyclic Redundancy Check) identifier for the NTSC-U (North American) version of Resident Evil 4