Reply #7: Anything without a documentable chain of custody could be a forgery

[Spinzonner]

and these are copies for which no originals have been identified.

However, all the technical arguments that proport to prove that the supposed originals could not have been produced with the technology available in the time-frame of their supposed preparation have been debunked.

And people who claim the the supposed originator - based upon the signature - would not have done so have been discounted by their distance from the process of the TANG or the operational habits of the supposed writer.

None of those prove authenticity. It is likely impossible to prove in this case. But the contrarians have not proved their case that they are forgeries either.