Aperture is a service by Starchild Systems that allows you to verify your identity on the internet. It is a free service that is open to everyone.
Select below the provider you would like someone to verify their identity with. You will get a unique link and unique code that you can share with them. Once they log in with the identity provider, they will receive a token they can send you back.
The combination of the token and the code will allow you to verify their identity.