How to verify authenticity of disney world toy story merchandise?

The only verified information in the supplied evidence concerns the existence of the Toy Story franchise and a description of Disney's Animated Storybook game series. No details are given about retail practices, authentication procedures, or trademarks related to Toy Story merchandise. Therefore, the sources cannot inform a method for confirming authenticity of products sold at Disney World. Without additional evidence, it is not possible to outline a reliable verification process based solely on the provided data.