R there is no proof for any of the lds claims.
Silly me, I keep forgetting. ;)
That depends on what you would accept as "proof."
I have posted here frequently, trying to explain what I believe and why. I believe that what have I written is true. Nevertheless, I do not expect anyone to accept the claims of Mormonism on my say-so.
Instead, I would urge everyone to study the Book of Mormon and apply the test given in Moroni 10:4, 5:
4 And when ye shall receive these things, I would exhort you that ye would ask God, the Eternal Father, in the name of Christ, if these things are not true; and if ye shall ask with a sincere heart, with real intent, having faith in Christ, he will manifest the truth of it unto you, by the power of the Holy Ghost.5 And by the power of the Holy Ghost ye may know the truth of all things.
I consider personal revelation from God to be the best "proof" one can have of eternal truths.