Frankly, I have no primary evidence of your existence. I could be arguing with a bot right now and it wouldn’t be unbelievable. Primary evidence is a motherfucker, the guy we are talking about was probably illiterate, talking to more people who were illiterate, what kind of primary evidence could there be? Even if we had a body, could we really point to it and say with any real confidence that it was Jesus or just some other person that was crucified?
Honestly ask yourself, what would you accept as primary evidence?