I don't need proof. In the event of your loss, whatever happens on your end will be proof enough. As for my proof, here is one of my public keys: 1kGPm64ErfBWBnfaGXnZtFaRhJuWiZiUY.
While you "dont need proof" i dont want to proof that you arent just linking some random address. The amount sent should be sufficient to pay for an answer. No answer, no deal. Simple as that.