HealthLink enables the user to give healthcare professionals access to their personal health data. HealthLink then records interactions with this data in an auditable, transparent and secure way on HealthLink’s distributed ledger. Lastly, HealthLink is a platform for others to use to build applications that complement and improve the user experience. Users will be able to leverage their medical data to power a plethora of applications and services. HealthLink Whitepaper 2.1 will outline the vision of HealthLink and the current issues in healthcare, as well as give a brief summary of the blockchain technology used and how HealthLink is utilising it to address specific issues to make healthcare better for users.