I was in the PhD program in University of Massachusetts from 2006 to early 2015 when I decided to drop out permanently. I was a PhD candidate or ABD (all but dissertation). It is clearly shown that in my Linkedln https://www.linkedin.com/in/longvuong22/ You can still see my picture in the incoming class of 2006 https://www.umass.edu/economics/graduate-program-incoming-class-2006, and some of the papers I did in the period 2012-2013 online http://www.peri.umass.edu/fileadmin/pdf/working_papers/working_papers_251-300/WP284.pdf

I left NEM project due to personal reason (intend to finish my dissertation) which was communicated with the NEM's core team which I founded originally. Someone clearly has too much times. Anything unrelated with TomoChain (on social media or other places) will be ignored and deleted. I could use my time somewhere else.