initiating at the rewards server a system game history ID reflective of {TAIL ~ transactions} of {HEAD ~ the system game} 
initiating at the rewards server a system game history ID reflective of { TAIL ~ transactions } of { HEAD ~ the system game }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD