{HEAD ~ The system operator} will most likely determine the type of {TAIL ~ information} to be kept on the shadow ledger 
{ HEAD ~ The system operator } will most likely determine the type of { TAIL ~ information } to be kept on the shadow ledger
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH