Pak Ganja, if I am not mistaken, the alphabet "pa" is an Arabic influence Jawi writing that must have indicated Islamic influence, and Majapahit was a Hindu influence kingdom? Wouldnt be Mataram II be the right kingdom that was hostile to Jambi, hence Si Ginjei?
Interesting info, Penangsang. Do you mean, the form of "pa" in the caraka-script was influenced by the form of "pa" Arabic alphabet?