[{"text_idx": "#000002", "text": "Fformat: Clawr papur, 54 tt."}, {"text_idx": "#000003", "text": "Yn y papur hwn ceisir profi, ar sail toreth o ffynonellau amrywiol a honiadau ysgolheigion y gorffennol, mai\u2019r un person oedd y beirdd Guto\u2019r Glyn a Guto ap Siancyn y Glyn."}, {"text_idx": "#000005", "text": "You must be logged in to post a review."}]