Canvassing Update, Using Tech to Reduce Costs & Enhance Safety September 20, 2018 Derek Sources for bonds on the blockchain and scroll-like display: https://cointelegraph.com/news/berkeley-city-council-moves-ahead-with-pilot-program-for-issuing-city-bonds-on-blockchain https://techcrunch.com/2018/08/31/scientists-make-a-prototype-touch-tablet-that-rolls-and-scrolls/