Inspired by PS4 PKG Integrity Checker from @MagicSeb, today PlayStation 4 developer @unknownqx shared a PC application he calls PS4PKGVerifier 1.0 followed by v1.1, v1.2 that can be used to verify PS4 PKG integrity on multiple files with an improved GUI, v1.3 and PS4PKGVerifier 1.4 with more details below. 
Download: PS4PKGVerifier_1.4.zip (2.3 MB)
Spoiler: Depreciated
He initially made it for his own use and then decided, to quote: "Maybe someone will be interested in using it" so those who'd like to can check it out and share feedback below!
Finally, those who haven't done so yet may want to become a Verified Member to access private areas with the latest PS4 FPKGs including 6.72 PS4JB to 5.05 PS4JB game backports, patches and updates we're unable to post on public forums.

Download: PS4PKGVerifier_1.4.zip (2.3 MB)
Spoiler: Depreciated
He initially made it for his own use and then decided, to quote: "Maybe someone will be interested in using it" so those who'd like to can check it out and share feedback below!

