One way to ensure that an account is a real person is to cross-reference other sources and websites тАФ but this takes time and effort, and many people are likely to mistake a fake for a genuine account.

Source: https://indianexpress.com/article/explained/blue-grey-gold-what-do-the-ticks-on-twitter-mean-8569241/

Police can check ID and cross-reference with the DMV database.

Source: https://www.fark.com/comments/12766382?utm_source=feed&utm_medium=comments&utm_campaign=fark

The plan will centralize and digitize the enormous volumes of judicial case files and other archives scattered across government agencies and human rights organizations, using a special software to cross-reference information.

Source: https://www.nytimes.com/2023/08/30/world/americas/chile-military-coup-disappeared-search.html