FIELD: protection of valuable documents against falsification and forgery. SUBSTANCE: method includes organization of area under check by applying curing (polymerizing) material onto paper to provide irregular transparency incorporating memory provision for further comparison in the course of check. Positioning elements made in the form of geometrical figures or symbols applied onto paper or onto transparent protective label are used single-valued positioning of area under check being read out.. EFFECT: facilitated authentication of documents without paper surface texture requirements; enhanced authenticity and objectivity. 9 cl
