Which brings me to my major point – the University of Western Australia has created a secret chemical code which "has been painted into an Aboriginal art work in a world-first step to outwit forgers who prey on Indigenous artists". Five unique chemical were actually encoded into five colours on a painting by WA Aboriginal artist Mr Timm, whose other work has been targeted by forgers. According to an article on the Perth Now website, "... the coding is an extension of elemental fingerprinting technology developed by Professor John Watling 15 years ago, which used high-powered lasers to trace stolen gold and diamonds back to their place of origin ..."
Apparently, this process has enormous applications even beyond the art world. I think this is a great day for Indigenous artists and indeed all artists. Thanks to Anita Heiss for drawing our attention to this article.