Abstract: The present invention relates to particulate based compositions for deposition on substrates, a system and method for the deposition of the said compositions for preparation of a clone-proof monetary and/or security documents. The said composition is applied as an identifier at predetermined location on the substrate. The magneto-optical signal from the said applied composition is captured by the reading system. Further it is encrypted same as an invisible or visible two dimensional (2D) barcode/imageon the substrate as an associated identifier so as to create a dedicated, non repeatable and unique functional digitised relation between two said identifiers and/or any other identifier(s) linked to a specific object.