@user = GlobalID::Locator.locate_signed params[:id]

However, with verifiable credentials in a Solid Pod, the university issues some information stating that a student completed a course and cryptography signs that information. This is a verifiable credential. They then pass that credential to the student who stores it in their Solid Personal Online Datastore (Pod). When the student wants to apply for a job, all they need to do is grant access to the credential so the company can read it. The company can confirm that the credential isn’t faked because its cryptographically signed by the university.

Mobility is cryptographically signed. To be sure the gem you install hasn't been tampered with, add my public key as a trusted certificate and install: gem cert --add <(curl -Ls https://raw.github.com/shioyama/mobility/master/certs/shioyama.pem) gem install mobility -P MediumSecurity The MediumSecurity trust profile will verify signed gems, but allow the installation of unsigned dependencies.