Therefore {HEAD ~ the only way} of finding out the correct hash value is to interrogate {TAIL ~ a real Authentication Chip} 
Therefore { HEAD ~ the only way } of finding out the correct hash value is to interrogate { TAIL ~ a real Authentication Chip }
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL