MedRec used Ethereum to enable patient controlled medical records, integrating with hospital databases and incentivizing researchers to validate transactions for data access.

Why it didn't take off 👆👆

MedRec remained a research project rather than a commercial product, facing scalability and hospital adoption challenges before the team shifted focus to other blockchain healthcare initiatives.

The transition from a research project to a commercial product in the healthcare industry can indeed be challenging, especially when facing scalability issues and adoption barriers. It's essential for blockchain initiatives to address these obstacles effectively to gain traction and widespread use.