The control system is adapted to receive {HEAD ~ remote ledger information} from {TAIL ~ the remote communications unit} relating to the independent ledger, compare corresponding information on the shadow ledger with the remote ledger information, and update the shadow ledger if the information is different from the information of the independent ledger 
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The control system is adapted to receive { HEAD ~ remote ledger information } from { TAIL ~ the remote communications unit } relating to the independent ledger , compare corresponding information on the shadow ledger with the remote ledger information , and update the shadow ledger if the information is different from the information of the independent ledger
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH