Is there a way to get
email@example.com handle from actor’s URL? The other way around it’s easy with webfinger, but I would like to retrieve the handle, and the only thing that I see in actor’s data is
preferredUsername which could be coupled to the known server hostname, but that doesn’t seems right as
preferredUsername has no uniqueness guaranty, and that should be something that user can modify.
Thus is there any reliable way to retrieve the short handle from actor’s URL?