FIELD: information technology.
SUBSTANCE: invention discloses machine-readable code which includes at least section of graphical indicator where graphical indicator is formed by random location of spots. At least some of spots forming graphical indicator can have size less than one micron. Spots that form graphical indicator can differ in size and/or shape. Section of graphical indicator containing code can be limited by contour. The contour can be temporary limitation which can be created by reading device relative to stipulated actuation point only when code is read out. Alternatively, section of graphical indicator containing code can be limited graphically by drawn contour.
EFFECT: high speed and simplicity of large number of distinct codes application.
3 cl, 12 dwg
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