The best form of verification to integrate into a push ad to ascertain human status is invisible CAPTCHA, such as Google reCAPTCHA v3. Unlike traditional CAPTCHAs, invisible CAPTCHAs analyze user behavior in the background without interrupting the user experience. This method evaluates mouse movements, scrolling patterns, and interaction timing to assign a risk score that indicates the likelihood of a user being human. It's ideal for push ads where seamless engagement is critical, as it doesn't disrupt the conversion flow. By reducing friction while still filtering out bots, invisible CAPTCHA offers a balance between security and usability. It helps maintain ad quality, protect budgets from fraud, and ensure that only genuine users interact with the promoted content or forms.