Vinay Gupta speaks about the relevance of cryptocurrencies. He discusses the challenging role that sustainability plays and the future role of banks. Vinay Gupta is Founder and CEO of Mattereum. He is a leading figure in the blockchain space, having coordinated the release of the blockchain platform Ethereum in July 2015, and was a strategic architect for ConsenSys Systems, a technology hub focusing on the Ethereum blockchain and related applications.