Resolves yes if at any point in his career Jake Paul wins a Boxing World Championship fight at any weight division for either the WBA, WBC, WBO, or IBF belt (or their future equivalent should they change). Note: Interim champion would count for this market.

Resolution source, ignoring obvious vandalism: List of current world boxing champions - Wikipedia

If Wikipedia updates the format of the page to include less-important belts that are agreed upon by consensus to be so, this market will resolve as "yes" only if he wins one of the currently listed belts (super belts and the WBA regular) or their successors.