A unique filename is generated for each screened message and {HEAD ~ a pair} of {TAIL ~ index node and storage node identifiers} are calculated from the unique filename 
of
A unique filename is generated for each screened message and { HEAD ~ a pair } of { TAIL ~ index node and storage node identifiers } are calculated from the unique filename
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH