[Erati]

do you remember anything about the timing of the 'tainted payment' and the actual Chardok proxying

If the trade happened while you were actively doing Chardok I suppose at the very least, encounter logs could be used to prove you were indeed doing Chardok AE during the time around when this transaction occurred which would help corroborate your story since you dont have logs of your /tell convo with the RMTer who paid you for proxy.