Hey mark!

 ml> i didn't write GoldED and i haven't dug into the C code to try
 ml> to find out...

Just looking at it I get the impression that it is the 32 bit hex value for
unixtime.  Take a look at the following for confirmation;

   TZ=EST5EDT date --date=@$(printf "%d" 0x5c9ec143) +"%d %b %y  %T" = 29 Mar
19  21:07:15

which is very close to the obsoleted msgHeader's datetime stamp in your reply =
 29 Mar 19  21:04:38.

Coincidence?  I think not.  I am guessing golded adds the MSGID just before you
 save it given there is just under 3 minutes difference.  In the routine I use
it creates the MSGID from the same unixtime as the obsoleted msgHeader's
datetime stamp and thus are identical.

Life is good,
Maurice

... Don't cry for me I have vi.
--- GNU bash, version 5.0.3(1)-release (x86_64-pc-linux-gnu)
 * Origin: Little Mikey's EuroPoint - Ladysmith BC, Canada (2:280/464.113)