Who is Jiang Huang-chi? Uncovering the background of the controversial scholar who made the Ministry of Foreign Affairs emasculate sovereignty

The document The International Legal Status of Taiwan used to be the legal shield for the Republic of China''s claim to sovereignty, but now it has completely disappeared from the Ministry of Foreign Affairs website under the Lai Ching-te administration. The strangeness of this matter originated from a submission by a scholar, Jiang Huang-chi. So, who is Jiang Huang-chi?