The TB number isn't the tracking code. That code is used to identify trackables "publicly" so people can refer to a specific trackable without giving away the tracking code, which can be used to discover or grab a trackable. The actual tracking code is stamped on the coin. It should be a five- or six-character alphanumeric string. If I recall correctly, it should start with "DV" and can be found on the side of the coin opposite Vitruvian man's image.
Yes. It is the TB number that I am missing. I have the coin and DV tracking code. But the wrong public TB number was with it so now I can't log it in. I believe that this coin must belong to someone who sent their geocoin traveling. So I am trying to reach anyone that has not heard from there Vituvian man geocoin in awhile.