There is disagreement in jurisprudence about the validity of litigation or the demand for proof of ownership. Some courts accept such a lawsuit and others issue a non-hearing order. Despite some legal research and judicial efforts, the current issue is still relevant and a well-established scientific perspective has not been formed. In this article, while explaining the issue in a preliminary way, the opinions of the proponents and opponents of the validity of such a claim and the critique of each are briefly presented. Then, an example of a judicial procedure based on opposing the validity of the mentioned lawsuit is given and analyzed. In the end, For reasons such as attention to the existence of a legal dispute in ownership, referring to the decision of ownership in some laws and the non-contradiction of the proceedings of such a lawsuit with the jurisdiction of the state registration office and other reasons, a detailed summary of the author on the validity of the claim for proof of ownership is presented except in exceptional cases and as a result of the superiority of the opinions of those in favor of the validity of the said claim.