X-Ufhash NNTP header query

Hi, all :)
I'v been posting on newsgroups/usenet and trying to figure out how to query the X-Ufhash NNTP header that returns a long encrypted string to get meaningfull info :confused:
X-Ufhash : ZaQJEMf5JdvcWEOleKoXo4ljK0hv5rauvinj*qfPFH*gkEPA*vOw7Jqtkzj*SWuX6Q8ZeGvPfoGqFZipnXALeUtU8QLJQ5**NMFAEVrNG2z*xZ48ksSy%2BKsEFCn6UJps8tZrNOrMiMKF%2FNofAzkyepiHCjV5CTN*PZ%2BV54b86ugEh*hPoGwPMgxFJJ8naz5uHr%2BHog6zUm4qfvxfrhgiuz*7g%2BMO07eqsGuJ

is there some kind of way to decode ? :confused:
any ideas ? :confused:

thank's in advance :)