Original article:
https://skemman.is/bitstream/1946/20840/1/BS%20Ritger%C3%B0%20-%20Cryptocurrency%20-%20Sindri%20Le%C3%B3%20%C3%81rnason%20Final.pdf

Edit history in case of edit (this information may not be available yet depending on how new this post is):
https://phist.steemdata.com/history?identifier=https%3A%2F%2Fsteemit.com%2Fsteemians%2F%40itzfeelinqx%2Fcryptocurrency-and-the-future