CheckDoc™ is a system enabling the checking of documents

signed digitally or physically

There many various ways to protect valuable documents on hard – paper – carrier. For this physical, chemical or graphical methods are used either singly or in combination. For electronic and digitally signed documents there are also different systems and levels of protection against unauthorized reproduction.

These systems are secure enough, but only in terms of electronic documents. There various, often noncompatible systems of digital signature. If you need to print out such a document, protection of its digital signature disappears and the document is easy to falsify. Protection of physical documents is costly, requiring special equipment and skills.

CheckDoc is a universal and reliable method of checking authenticity of hard copy and electronic documents using a unique patented technology developed by ChecktoCashup®. Identification of an electronic document requires services provided by third parties.