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