Decision 41 G.R. No. 224469 communal ownership not a source of ownership. 105 Lamsis v. Dong-E106 relevantly states: The application for issuance of a Certificate of Ancestral Land Title pending before the NCIP is akin to a registration proceeding. It also seeks an official recognition of one's claim to a particular land and is also in rem. The titling of ancestral lands is for the purpose of "officially establishing" one's land as an ancestral land. Just like a registration proceeding, the titling of ancestral lands does not vest ownership upon the applicant but only recognizes ownership that has already vested in the applicant by virtue of his and his predecessor-in-interest's possession of the property since time immemorial. 107 Even without yet a paper title, the State has already formally recognized the rights of the Iraya-Mangyan IPs approaching title to use and enjoy their ancestral domains through their CADC. The State has also affirmed that holders of a CADC have substantial rights and obligations, to wit: A. Rights 1. The right to occupy, cultivate and utilize the land and all natural resources found therein, as well as to reside peacefully within the domain, subject to existing laws, rules and regulations applicable thereto; 2. The right to benefit and to share the profits from the allocation and utilization of natural resources within the domain; 3. The right to regulate in coordination with the Local Government Units concerned, the entry of migrant settlers, non-government organizations and other similar entities into the domain; 4. The right to negotiate the terms and conditions for the exploitation of natural resources in the area for the purpose of ensuring the observance of ecological and environmental protection and conservation measures pursuant to national and customary laws, rules and regulations; 5. The right to acfively and collectively participate in the formulation and implementation of government projects within the domain; 6. The right to lay claim on adjacent areas which may, after a more careful and thorough investigation, be proven to be in fact part of the ancestral domain; 7. The right to access and availment of technical, financial and other form of assistance provided for by the Department of Environment and Natural Resources and other government agencies; 8. The right to claim ownership of all improvements made by them at any time within the ancestral domain. B. Responsibilities responsibility to: The community claimants shall have the 1. Prepare a Management Plan for the domain in consonance with the provisions of Article VI hereof; 105 See Lim v. Gamosa, 774 Phil. 31 (2015). 648 Phil. 372, 393-394 (2010). 107 Citations omitted. 106