From Pathfinder Lost Omens World Guide, which isn't enabled.

Rivethun Adherent

BACKGROUND

Attribute Boosts Constitution or Wisdom, free

Skills Occultism, Spirit Lore

Prerequisite Region - Shining Kingdoms

You have spent time learning the practices and traditions of the ancient Rivethun dwarven shamans and can recognize all sorts of magic. You may have chosen your own road since then, or you may remain an adherent of the philosophy.

Choose two attribute boosts. One must be to Constitution or Wisdom, and one is a free attribute boost.

You're trained in the Occultism skill and the Spirit Lore skill. You gain the Recognize Spell skill feat.

Pathfinder Lost Omens World GuideOGL