HKC's Global Legal Currency Trading Market (HKCEM) is built on the basis of blockchain technology and uses the stable encrypted digital currency "HKC" as a single base currency for pricing and settlement. It accesses real-time data from several major foreign exchange trading markets around the world. It is a decentralized and collectively maintained distributed "digital currency Hong Kong" that is jointly verified and jointly managed by multi-party chain nodes and has the characteristics of openness, independence, security and anonymity. A professional currency trading market that exchanges HKC currency against global mainstream legal currencies;