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FAQ - Frequently Asked Questions

What is a digital fingerprint?

A digital fingerprint is an identifying sequence of digits which is the result of applying a mathematical algorithm to the complete content of a digital file. Digiprove uses a proven algorithm called "SHA256" for this.  The process generates a 256-bit (64 character) calculated value, and the algorithm is so constructed that even the tiniest change to a document will result in a change to its fingerprint.   The algorithm is a "one-way" process which means that it is not possible to recreate a document from the fingerprint, and that it is not possible (without massive computing power factors beyond those currently available) for a computer program to calculate a document that will result in a given fingerprint.


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