The Supreme Court announced its opinion in Doe v. Reed today and SCOTUSBlog has the summary here.
By a broad eight-to-one majority in an opinion by the Chief Justice, the Supreme Court today held in Doe v. Reed that signatories of referendum petitions generally do not have a constitutional right – i.e., a right that would trump state open government laws – to keep their identities private. But the Court held – again, by the same broad majority – that courts should consider in any given case whether a particular referendum presents sufficiently unique circumstances that anonymity is required.