Do I need a witness on my Claim of the Life?
You are the witness of your witnessing on your Claim of the Life. You use your knowledge to Authorize your Claim. You are the Author of your world. You have jurisdiction in your now-space, with your cargo of thinking, so now, go and be of the good volition in your thinking and acting, new-Claimants.
On some contracts you will want a Certification (like a Notary). This is not a witness so much as it is aiding/certifying you with a specific authorization, from a postal construct.