The unique ID number may be printed in {HEAD ~ plain text} in the address block and cryptographically encoded within {TAIL ~ the DPM} 
The unique ID number may be printed in { HEAD ~ plain text } in the address block and cryptographically encoded within { TAIL ~ the DPM }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL