In {TAIL ~ some embodiments} {HEAD ~ the reader} may use the ID to help identify the proper signing authority, or may use the ID to help identify which SAPK to use from a given signing authority 
In
In { TAIL ~ some embodiments } { HEAD ~ the reader } may use the ID to help identify the proper signing authority , or may use the ID to help identify which SAPK to use from a given signing authority
REL TAIL TAIL TAIL TAIL TAIL TAIL HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH