Nanotechnology, Deep Learning, Artificial Intelligence, Counterfeiting.
https://nanopinion.archiv.zsi.at/sites/default/files/briefing_no.8_nanotechnologies_for_anti-counterfeiting_applications.pdf https://spectrum.ieee.org/how-nanotech-can-foil-counterfeiters https://www.spacedaily.com/news/nanotech-05zzd.html https://www.azonano.com/news.aspx?newsID=39195