A method of validating the contents of an electronic file. The method comprises requesting an electronic file by an application executing on a computer system by providing a multi-segment filename, wherein the multi-segment filename comprises a unique delimiter between each of the segments of the multi-segment filename and one of the segments of the multi-segment filename is a hash of a content of the electronic file referenced by the multi-segment filename, receiving by the application the electronic file referenced by the multi-segment filename, determining a hash over the content of the electronic file by the application, comparing by the application the hash determined by the application to the hash of the content stored in the one of the segments of the multi-segment filename, and, based on the two hashes agreeing, opening by the application the contents of the electronic file for use.