One way to confirm the authenticity of a child influencer is by researching their background and verifying their identity. It can include checking for official documentation, such as birth certificates or passports, and confirming their age through public records. Additionally, examining their content and engagement patterns can provide insight into whether their influence is genuine or artificially inflated through paid followers or bots. As with any influencer, approach child influencers with caution and consider the potential impact of their content on their young audience.