We record the 'SHA256 FILE HASH' for each file we certify as this is a very powerful method of proving the authenticity of file(s) uploaded to Protect My Work.
A file"hash" is a unique value that is matched to the uploaded file, applied using a complex mathematical formula which cannot be reverse engineered. All files uploaded to Protect My work have their own unique hash code displayed on our digital certificates.
There are a number of mathematical "hash algorithms" available. We use "SHA256" as this doesn't have any known vulnerabilities and is used by many of the most secure blockchain networks.