FIELD: information technology.
SUBSTANCE: proof concept lies in the double nature of physical and digital information elements, one of which is a reference to the other, which can be corrected due to the risk of loss of evidence. For the original document (8), which is associatively related to the printing bubble (7), there is corresponding registered non-paper reference equivalent marked with a date/time stamp. The registered digital original of the document (15) which is marked with a date/time stamp, there is a corresponding reference equivalent in form of a printing bubble (7).
EFFECT: high reliability of protective properties of documents.
13 cl, 7 dwg
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