What is the laws of pre-hispanic barangay?

The Laws of Pre-Hispanic Barangays were called the Code of Kalantiaw, which was said to have been written in 1433 by Datu Kalantiaw, a tribal chief in the Philippines. However, modern scholarship has dismissed the existence of Kalantiaw as a historical figure, and the code itself is considered a hoax created in the 20th century.