- Coinfloor, Coinbase, Ripple, Citi, VanEck, Circle, BlockEx, EY (Ernst & Young LLP) and BP Prime amongst participants - MJAC announces the latest details for the CryptoCompare & MJAC London Blockchain Summit on June 13. On the Main Stage, Zeeshan Feroz, CEO (UK) of Coinbase, will be presenting on Cryptocurrencies: Creating an Open Financial System; Danny Aranda, Managing Director of Strategic Growth at Ripple, will be discussing Blockchain and the Internet of Value; and Joshua Riddett, Founder & Managing...