Promotion is a very important think. Everybody must know haw simple to check diploma. If it will be simple to check diploma it will be less fake diplomas.
Yes, they need a big advertising campaign. Agreements with educational institutions. In addition, many people do not know or do not understand the possibility of cryptocurrency. It will take time before such services can work everywhere.
The implementation of the project requires readiness for a long and hard work. Cooperation with universities is the first step.