Paper Champions

I was recently talking to @Roe about Vitali and wether he could retire saying he was Heavyweight Champion of the world without being undisputed champion. With all the politics and various different titles around now it is a very difficult and sometimes rare feat to be undisputed.

For instance can Carl Froch ever claim to be World Champion?

Or although some fighters only ever held one title they are still heralded as World champions where as others arent.