Downloadable computer software, namely, software for use in database management in the fields of health information and medical information management; downloadable computer software for use in verifying, processing, storing, encrypting, sharing and managing personal health information; downloadable computer software for use in employment applications and for employee screening; downloadable computer software that processes identity and credentials verification information for employee identification, healthcare, and medical transactions; downloadable computer software for use in managing and sharing personal identification information; downloadable computer software for the collection, managing, editing, organizing, modifying, transmission, sharing, and storage of data and information; downloadable computer software for use as an application programming interface (API); downloadable software using block chain technology for use in accessing, reading, tracking, and using data and information; downloadable computer software for use in sharing and communicating information on the location and proximity of individuals; computer hardware; wireless handheld computers