When laying the foundation for a robust interoperable healthcare system, we need to start at the protocol level and design new infrastructure that is owned and controlled by no one and everyone. We need identity and digital value protocol layers and we need immutable health records controlled by their rightful owners. Due to regio nal data protection regulations, like GDPR, privacy sensitive information, like health records, must be guaranteed to stay within specific geographic jurisdictions. This is why public chain deployment is not yet an option. Together with The Enterprise Ethereum Alliance, we want to contribute to the development of required tooling and policy frameworks to run permissioned blockchains as critical infrastructure. Leveraging the decentralized computing platform, we are reinventing data management for the entire healthcare system. We are forming a consortium, CareChain, to deploy Trusted Infrastructure, starting in Sweden and the European Union.