Paul is in charge of EY's initiatives and investments in blockchain technology across the company's consulting, audit and tax businesses. He led EY's first blockchain strategy engagement to examine how digital services, payments and the Internet of things are coming together in new ecosystems. We spoke of his long-held belief that corporations should be building on public chains like Ethereum, and how that squares with his recent appointment as chairman of the Enterprise Ethereum Alliance, which has been a proponent of private, permissioned blockchains.