jm ? ùÝMànÀ%éä^»¶K/\l¬AT; wL¸and all the numbers are xor'ed with each other. You can't rig that if even one number is out of your control. But I dunno, each participant would have to pay for minimum 2 transactions
https://whatsonchain.com/tx/252895d386b1ccdda11d79ae2b9351438f1fb9390b1c3bf4eb0a4ddd440d8d49