The Mission of the Sheikah
The quest is unlocked after completing The Great Plateau.
"The Sheikah researchers wish above all else to gain a deeper understanding of the ancient Sheikah civilization. To aid their efforts, donate ancient materials that you have acquired in your travels."
"The researchers were delighted by the mountain of ancient materials! Though a long ways from true understanding, by sharing data and materials, they were able to take a major step forward."