[Openid-specs-ab] How to use OIDC claims as an identity oracle

[George Fletcher]

Hi,

As a relying party, I'd love to be able to ask the OpenID Provider 
whether the user authenticating is over a particular age. This could be 
used in may use cases. However, when I look at the spec, there is only a 
provided claim name of 'birthdate'. I don't really want the user's birth 
date, just an assertion that the user is over a particular age.

I don't see a way to do this via the OIDC claim mechanism. Any thoughts 
on how a RP may make such a request?

Thanks,
George