In addition, according to one embodiment, the comparator 515 of the authentication engine 215 may advantageously compare {HEAD ~ conventional hashes} of {TAIL ~ documents} in order to render a comparison result 
In addition , according to one embodiment , the comparator 515 of the authentication engine 215 may advantageously compare { HEAD ~ conventional hashes } of { TAIL ~ documents } in order to render a comparison result
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH