Provided is an article of manufacturer with anti-counterfeit properties a
consumable, having taggant nanoparticles dispersed within it. Each
taggant nanoparticle has at least one known physical characteristic such
as, the taggant nanoparticles being a predetermined combination of
nanoparticles providing at least two different taggant physical
characteristics as a taggant code encoding product identification for the
consumable so as to permit identification of the consumable. The physical
characteristics in an embodiment include a combination of fluorescence,
particle size, shape, and/or magnetic properties.