Babbitt's live report, #2019 World Blockchain Conference·Wuzhen# Today's wonderful continues, the sub-forum "Opportunities and Challenges of Digital Asset Trading" officially opened. Luo Yu, co-founder and CEO of Yulink Technology, said in his speech that the blockchain is not without application, and the lack of killer applications. He pointed out that there is a lack of mutual trust in distributed commerce: on the one hand, it is difficult to achieve multi-party trust due to untrustworthy data, and it is difficult to achieve multi-party trust due to lack of standardized products/guarantee tools; Big, the consensus is difficult to achieve. Once a dispute arises, it is difficult to prove the innocence. Therefore, we need three capabilities of trusted data collection, trusted data sharing, and trusted data utilization to solve mutual trust problems.