Author approval alone does not confer canonical status upon adaptations. Such material is considered part of the primary continuity only when the creator or rights holders explicitly confirm its integration into, or priority over, the original timeline—for instance, through statements verifying that specific events, scenes, or elements genuinely occur within it (e.g., "These scenes originate from material in my notes that was omitted from the initial release but belongs in the core story.") Mere involvement, minor supervision, general praise, or characterizations of the work as a "faithful adaptation" remain insufficient to establish new content as official canon; all determinations continue to be made on a case-by-case basis, with these criteria serving as guidelines rather than an exhaustive standard.