William Henry Scott proved in his dissertation that Maragtas and the Confederation of Madya-as were not actual ancient documents from long ago but only legends that were collected and in some cases possibly concocted by Pedro Monteclaro and published in 1907 in his book entitled Maragtas. As for the Maragtas Code, Scott found that it was merely an invention of Guillermo Santiago-Cuino's mind which was probably based on Monteclaro's book and published in 1938.
Napatunayan sa dissertation ni William Henry Scott na ang Maragtás at ang Confederation of Mady-as ay hindî mga tunay na lumang kasulatan mulâ sa unang panahón kundî mga alamát lamang na tinipon, at sa iláng kaso ay máaaring gawá-gawâ lamang, ni Pedro Monteclaro na inilathalà noóng 1907 sa kaniyáng aklát na ang pamagát ay Maragtás. Samantala, ang Maragtás Code namán ay isáng katháng isip lamang ni Guillermo Cuino na isinulat niyá noóng taóng 1938. Malamáng na ibinatay niyá itó sa aklát ni Monteclaro.