searching images on the internet by hash

Question

I have a selection of 13970 corrupted images, each named after its own MD5 hash.

Ideally I want to conjure up a tool that can search the internet matching the corrupt image with a clean undamaged version online, using this hash, and restore the image. At the moment I am trying to find a means to search online by hash.

I have been able to find online services offering hashes of images you don't want on your website for blacklisting purposes, if it is possible to check what users are posting to your website against a blacklist, it must be possible to match a corrupt image against it's original source or a repost online.