2018-08-18 UTC
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saranix so, if it were of interest, to publish a "list" of who the group "members" were, given the semantics that you want those words to mean, then someone who has permission to, would simply create a collection of those members, as it's own little object. that object can be named, or uri namespaced, or shared ("announced") to insterested parties, whomever and however you determine that to be, however your fancy desires.