GSC File Hash Library

Comparing file hashes is a nearly perfect method to make sure contents of the file (patch) are exactly what someone claims them to be. You can use this service to compare hashes displayed by newer versions of Plutonium (of both user patches like Black Ops II Community Patch and actual game files) to confirm there were no replacements/injections taking place.


Check files or screenshots

Screenshots are read automatically. Other files have their checksum calculated. Up to 50 files, including 10 PNG, JPEG, or WebP screenshots, per batch. Screenshots can be up to 20 MB and 16 megapixels each.

What happens to the file?

Your browser reads checksums from screenshots and calculates other files' CRC32 checksums locally. Files stay on your device. B2 receives only checksums to look up known files and groups. Compiled and source versions have different checksums.

Files with the same checksum share a lookup result. A matching checksum indicates that the file matches a version registered in B2.

Select a screenshot preview to check it at full size. Verify the recognized checksums; enter any corrections below.

Type the checksum in