I would be worried about about the sustainability issues that this project presents. Additionally, blockchain technology is a rather new concept and people in many parts of the world may not know it. It would be important to see you address these issues in the project brief.
I think that is where Gavi, The Vaccine Alliance comes in. If this innovation is successful, Gavi will sponsor it. Also, this organization can get funding from from well-wishers. Way to go Medic Mobile. All the very best.
One of the benefits of innovating on this platform was the feedback I got from the organizers and other members of the Open Ideo community. The feedback was key in refining my product. Secondly, since this is a competition, it challenged me to come up with a superior product. The final product is going to be universal and people around the globe have different needs and wants. The problem was reconciling these needs and wants into a single product that will satisfy the global market.