Device consisting of nano-scale holes embedded into a printable substrate for creating a visible iridescent image and machine readable image that facilitates authentication, tracking and preventing of falsification of currency, documents and goods

'authent':25 'consist':2 'creat':14 'currenc':32 'devic':1 'document':33 'embed':8 'facilit':24 'falsif':30 'good':35 'hole':7 'imag':18,22 'iridesc':17 'machin':20 'nano':5 'nano-scal':4 'prevent':28 'printabl':11 'readabl':21 'scale':6 'substrat':12 'track':26 'visibl':16

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