Adding full name in a Copyright Notice, name clashes

Question

If I understood the GPL/LGPL and other similar license FAQ's correctly, I can put my name in a License file and/or add a copyright notice with my name in the source files, and that's pretty much a done deal.

But how can one claim to be the author of 'xyz' software if the copyright notice only states the authors First and Last name? What if my name is James Smith, and there are thousands of James Smith's out there? I'm talking about name clashes. Anyone named James Smith could claim to be the original author, right?

Apart from registering a company name, is there any other way I could clearly state who is the original author of 'xyz' software?

Answer 1

Also put your email address in there.

Answer 2

or street address, or social security number or telephone number or date of birth ...

... any uniquely identifying piece of ID - which is unlikely to change over time. Maybe social security number is best?