I have no idea，but it is important，so i want to ask rozu about ox-trade.com
Rozu stated a while back that he was not involved with the creators of ox-trade.com.
Here's an excerpt from when I asked him about it:
i do not contact the group you say because i did not see the group has done some work, i can not judge whether it's a cheater or realy want to help Pennies.
I did send about 500 million Pennies to their site and everything transferred smoothly, so at least their wallet is functioning. But whether those CENTSQW remaining numbers are faked or not still needs to be verified.