And Sugita asked Yosuke WATANABE of Historiographical Institute at Tokyo Imperial University to appraise the inscription, and as a result it is confirmed that the inscription was historical material of an uprising of Tokusei.
そして杉田氏が、東京帝国大学史料編纂所の渡辺世祐に鑑定を依頼し、結果、徳政一揆の史料と確認された。