Quote:
Originally Posted by ConstantOgler
This one of many = help threads here that prompt me to ask: This is all about file name matching, no?
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No, its about matching the file hash. That's a number mathematically generated from a file's contents-- change the name and the hash stays the same. Each set of bits in a file will produce an effectively unique hash (at a theoretical level, there are cases where two different files might have the same hash, but that's so rare as to be irrelevant).
So you can change the name, and things like Tineye find the image fine . . . because the filename is irrelevant. This is why you'll sometimes see folks add some irrelevant extra file to a zip that they're uploading to a host . . . if a filehost has had a particular file reported for piracy, they'll have its hash on a blacklist. . . adding a even a 20K jpg to the file and zipping them up together produces an upload with a different hash.