[keycloak-user] URL to download the public certificate of IdPs

Hello guys, I was wondering, is there a URL in Keycloak that one can use to download the public certificate (PEM or some other format) of the IdP? I do know about the "jwks_uri", but that only gives me the public key. However, I need a public certificate. I have been through both Keycloak and OpenID Connect specs, but so far I could not find anything. Any help here would be greatly appreciated. -- Rafael Weingärtner