"The U.S. has always been a very important market; globally it's one of the biggest markets for any business, including in cryptocurrency," he said. "We want to be fully compliant. Before we didn't feel we had the experience to do that but now we have our partners so we want to take this opportunity to explore the market."
Miners’ work periodically creates new copies of the blockchain, adding recent, previously unverified transactions that aren’t included in any previous blockchain copy — effectively completing those transactions.

"For any centralized service, we have to do [client verification] and hold customer data," Zhao said. "On top of that we have to hold customer assets. Unlike banks, when the assets get stolen it's difficult to get them back. There's a high responsibility on the centralized exchanges we need to carry out well."
The horizontal axis shows the time; relationships positioned towards the leftmost area of a diagram occurred at the start of the data interval considered, and those at the rightmost end occurred at the end of the data interval considered. The vertical axis shows the period; lower period bands (higher frequencies) are shown near the top and higher bands (lower frequencies) are near the bottom. Lower bands would be of interest to investors with short term horizons, whereas higher bands would be of interest to investors with longer term horizons.