This is an interesting idea. There are a few other public goods that are similarly shaped (document notarization and land records/registry are the examples that

This is an interesting idea. There are a few other public goods that are similarly shaped (document notarization and land records/registry are the examples that leap to mind). But there are a few areas of potential problems, such as diploma mills with deceptive homoglyph names or domains (eg. һаrѵarⅾ.edu).