[OpenID] Which schema to use for AX?

[André Cruz]

Hello.

While trying to request AX attributes from an OP I've stumbled into  
several type URIs and can't seem to find an authorative source to tell  
me which one to use.

I thought http://axschema.org/ was the default but then I read http://openid.net/specs/openid-attribute-properties-list-1_0-01.html 
  and it talks about http://openid.net/schema/. Myopenid uses a third  
type: http://schema.openid.net/...

Is there a "standard" one?

André Cruz