Was there anything specific regarding the serial numbers of these bikes that would distinguish them from say, the 1995 Schwinn Cruiser 6 that I own?
Nobody seems to know the answer to that very question. With all the fakes out there it's imperative that it be known how to authenicate the bikes.
Rec, if you were to sell your bike and the buyer asked for such information how would you prove yours is the real thing?
I believe that the frames are slightly different than the other model bikes. The fellow I bought mine from also had a different model from '95, and it didn't look the same at all (to me anyway) - the front downtube appeared to have a slightly different bend. He offered it to me as well, but for $150. I noticed that the fenders and the light on the front were also different. Other things I noticed: paint scheme was not the same, different chainguard, different wheels and "classic" whitewall tires. These are supposed to be the only Phantom models that were truly identifiable according to the ad hype from the initial set of advertisements and promo stuff. It seems there were two number stampings but I can't say for sure as I didn't look. I DO know the s/n I recorded though - G001691. It seems there was an additional number that was much longer on it too. I just don't remember for sure, but I am sure it is the real deal though.
I have not looked to verifiy it, but there is supposed to be some different stamping under the bottom bracket. Mine is in the middle of a bunch of other bikes in a row in the shed, and the next time I pull enough stuff out to get to it, I'll see what's under there.