OAuth (Open Authorisation) is a protocol or set of rules for token-based Internet authorisation. OAuth allows third-party systems to use end-user account information without revealing the user's credentials. It acts as a mediator, allowing a third-party system access token that authorises the exchange of certain account information.

SSI OAuth allows a service to set a certain credential(s) as “required” to allow or deny the user access to a system.

For detailed information on the OAuth framework and its extensions that are used in this platform, see and

SSI OAuth is available for all ProofSpace subscribers.