Thoth seems to have been a very powerful entity indeed. He seems to have been the one who raised humans from primitive cave dweller to modern human. The story is that he was an Atlantean, although there are indications that he was more than that. He was the keeper of knowledge for The Dweller, who was the Earthly representative of the Seven Golden Lords who have come from Cycles 'above' ours to guide us.

Thoth lived a long time & 'died' of his own volition. He was an habitué of Amenti where he communed with the Seven Lords & received the benefit of the Flower of Life, enabling him to renew his body & be one of the Immortals.

If you met him you would, I think, be in the presence of a truely awe-inspiring presence. If the second being got the name wrong I'd suspect it is someone faking knowledge. Someone you've had contact or established a link with who is using that link to try to impress you in some way.

Just my opinion...