The document summarizes an enterprise blockchain summit event taking place on June 29th in NYC. It will bring together 100 attendees from Fortune 500 companies and blockchain startups to discuss topics like blockchain adoption in supply chains, the differences between Ethereum and Hyperledger, and successful blockchain pilots. Notable speakers include executives from Morgan Creek Digital Assets, SAP, Comcast, and blockchain startup CEOs. The event aims to celebrate organizations taking blockchain mainstream and facilitate partnerships between large enterprises and startups.