We are proud to say that coinprize.com is the first and the most popular stock binary option platform using bitcoins, and we are the  most robust and secure binary option platform. Most importantly, coinprize.com is transparent from start to end, you know how much you gain and where those bitcoins come from (opposite players), and every investment is list on website in the "Recents" section and is public for everyone, and you are anonymous to public as well, simply because we don't offer registration, we don't track players, we use the same concept of satoshidice.com: when you win, we send your bitcoins back to your input address which is the only information we get from bitcoin blockchain.
We are so proud to be the creator of such platform and we are continuously working hard to offer a better platform day by day, step by step.

Thank you for all investors that are already engaged in, thank you very much!
Best,
All members of CoinPrize.com

To know more about it, please visit: https://bitcointalk.org/index.php?topic=274617