Well - the only interesting thing I found with my 3.175% payout was that tracing it back it came from pool mining.
The 386 BTC payouts were done over and over again to a new address so it takes a while to follow it back but it was easy to see and follow.
I take it you weren't able to discern which pool it was? Speculation here; maybe it came from Graeme?
But it wasn't Ozcoin.