LEMONCHAIN ​​is an open data ecosystem that enhances the medical data rights of individual patients through the decentralization of EMR (electronic medical records) with blockchain technology. As the ecosystem ensures that individuals access and utilize their own healthcare data, it can reduce information asymmetries between individual patients and healthcare institutions. It is structured to enable mutual compensation between ecosystem participants by creating a system that allows consumers to actively participate. LEOMCHAIN's goal is to become the standard blockchain protocol and platform for the global healthcare market through the LEOMCHAIN ​​ecosystem.