Regarding territorial disputes, it is difficult to use a single or "accurate" data to determine the ownership of any piece of territory. The reasons are: 1. History and multiple perspectives: Many territorial disputes involve a long historical background and different political and cultural traditions. The parties often cite historical documents, maps, treaties or other evidence to support their claims, and these evidence may have different interpretations. 2. International law and treaties: International law, bilateral or multilateral treaties, and international arbitration and court decisions are often used to judge territorial disputes. However, even if there are international legal interpretations, different countries and interest groups may have different understandings of treaties and legal provisions. 3. Political and practical factors: Territorial ownership not only involves legal and historical issues, but is also closely related to real politics, national identity, security considerations and other factors. Political realities often make it difficult for both parties or multiple parties to hold their own opinions and reach a consensus. 4. Limitations of information sources: Public historical documents and geopolitical analysis may provide some information, but they often have limitations. Some key evidence or latest developments may not be widely disclosed, or there may be differences in interpretation between different countries, scholars or institutions. Therefore, when it comes to specific cases involving territorial ownership, it is usually necessary to combine historical data, legal documents, international arbitration results, and political statements of all parties to make multi-angle judgments and analyses. The final resolution of this issue often requires international court rulings, negotiations, or political compromises, rather than simply relying on a certain "accurate" data or information. If you are concerned about a specific territorial dispute, it is recommended to consult professional historical research, international law analysis, and relevant materials from international organizations (such as the International Court of Justice of the United Nations), while paying attention to the latest official statements and negotiation dynamics of all parties. This comprehensive information can help all parties get closer to the facts themselves, but the final definition of ownership is often accompanied by a certain degree of uncertainty and controversy.