Sam, There is a fork of the bitcoin blockchain specifically designed with this in mind: https://namecoin.info/ There has been also some academic work on using blockchain for domain name concepts. See: Providing better confidentiality and authentication on the Internet using Namecoin and MinimaLT Frederic Jacobs http://arxiv.org/abs/1407.6453 Peer-to-Peer Networking and Applications April 2015 Difficulty control for blockchain-based consensus systems Daniel Kraft http://link.springer.com/article/10.1007/s12083-015-0347-x -- Professor Andrew A Adams [log in to unmask] Professor at Graduate School of Business Administration, and Deputy Director of the Centre for Business Information Ethics Meiji University, Tokyo, Japan http://www.a-cubed.info/