Kno2 PreCheck™ ensures that patient data can be efficiently located without the need for Kno2 participants to store protected health information (PHI) in centralized repositories. Unlike other health information network providers that require their customers to store and share unnecessary patient information for participation, Kno2 PreCheck™ addresses these concerns by using advanced cryptographic routing technology that optimizes network traffic to Kno2’s edge participants while eliminating the need to store centralized PHI within Kno2.