Certification and authorization is an important topic and there are strong teams already building solutions for this.
We totally agree that blockchain have to be used for important task that could help in everyday life of users and business. We are happy to propose our own solution also because if other teams are already building, we already build working products. https://wallet.scryptachain.org https://idanode01.scryptachain.org
There are a few projects at advanced stages with their authorization and certification products as well, but don't know in how far they compare to your product. Will check that out.