Yes the proof is written in stone - Jesus was based upon the much older Egyptian myth of Horus.
The Ten Commandments was copied from the Egyption Book of the Dead.
The Virgin Mary's character was based on Virgo: the virgin of the zodiac, with the constellation itself once representing the Egyptian goddess Isis.
The Hebrew name for Virgo was Beth'lehem: which means 'house of bread'. Isis/Virgo was always depicted carrying a sheaf of wheat.
Some wall art depicting Isis shows her wearing a 'throne crown'. The crown depicts the empty throne of her husband and brother: the slain - by Seth - Osiris.
You can see this throne in the night sky - it is the constellation of Ursa Minor (the little bear). It is not hard to find as the topmost star of this constellation is the pole star. When next you look at it just imagine - you are looking at the 'seat of judgment' otherwise known as the 'throne of god' and all the stars around about are the hosts of heaven.
There is even a theory that the name Israel is an amalgam of - Isis + Ra (another Egyptian personification of the Sun) + El (this was the Hebrew god that preceded Yahweh).