Prescrypto is building RexChain, a healthcare blockchain designed to guarantee portability of sensitive clinical data in a secure and private way. RexChain shifts data ownership to users, empowering them to decide how, and with whom they want to share their information. To help people receive adequate care, RexChain aims to create a sustainable model that keeps sensitive clinical data safe and private, amidst sharing it amongst healthcare provider. This ensures that a patient's medical data is not only protected but also remains accurate and accessible to any medical professional or healthcare provider. For example, a patient can seek consultation from and be prescribed a medication by a remote specialist via telemedicine, and these records will also be available to a local physician. Blockchain’s novel approach on data ownership and system level governance provides a guarantee to patients that no strangers will view or profit from their clinical information without their consent.