Witness Him

Witness Him was a virtual representation of one of Kassandra's genetic memories, relived by Layla Hassan through the Portable Animus HR-8.5.

Description
After placing Sophanes's name on the citizen list, Alkibiades said the task wasn't complete. Apparently, Kassandra had to also convince a witness to claim Sophanes was a true citizen.

Reference

 * Assassin's Creed: Odyssey