His name was described as "物部荒甲", MONONOBE no Arakahi, (different kanji writing, same reading) in "Kojiki" (The Records of Ancient Matters) and it can be seen that he was in charge of subjugation of Tsukushi no kimi Iwai with Kanamura.
『古事記』にも物部荒甲の表記で記述され、金村と共に竺紫君石井（磐井）討伐の任に当たったことが見える。