Hong Kong Blockchain Week 2019 was a global event organized by NexChange, which attracted over 4,000 participants from 50 countries. The event featured panel discussions, exhibitions, workshops, and pitch competitions, showcasing the latest advancements in blockchain technology and its potential applications in various industries. Joseph Lubin, the co-founder of Ethereum, delivered the keynote speech and highlighted the importance of blockchain in promoting transparency, accountability, and trust. Overall, the event provided valuable insights into the future of blockchain technology and its transformative potential.