Buzz and Risbarb,
If you guys are really serious about the competition, then, act on it instead of throwing verbal abuses back and forth.
The issue can be easily solved by going to a major commerical bank. Set up a sort of short-term trust account, fund it, and give the bank full authority to review your account history (the account you intend to use to conduct the competition). Instruct the trust to make payment to the winner. The bank trust department can help you guys set up a trust in accordance to your instructions.
So put together a draft that includes all the details of the competition. Send it to each other, and if you guys agree to the draft, both sign it and send it to the bank. They will then set up a trust account. After they receive funding from both of you, it's good to go.
You guys can set up your trading accounts with any brokerage firms. This info. and your name will remain confidential. Only the trustee has the privilege to this info. and the authority to review your account transactions and history directly with your brokers. (authority and privilege are given to the trustee during the set up of the trust).
Of course, the bank will charge a fee for this, but it should be minimal (usually a bank will charge a certain percentage, say, around 2-5% of the total fund).