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