http://pyramining.com/referral/7sbhtadgn   2012-08-10 20:24:21 UTC   still active
http://pyramining.com/referral/n7qhdfpx8   2012-08-03 19:49:33 UTC   still active
http://pyramining.com/referral/y4zdnb67s   2012-08-03 19:49:33 UTC   still active
http://pyramining.com/referral/9nm6x4z2h   2012-06-27 13:54:03 UTC   still active
http://pyramining.com/referral/ahez9r8ys   2012-06-27 13:54:03 UTC   still active

^in response to if he owns the account, just use two escrows to trade a large amount of money (since he surely wouldn't want to lose the money if it wasn't his account)