To verify your humanity, news organizations often ask users to press and hold a key on their keyboard. This method is typically used in conjunction with a reference ID number, which is generated by the website or application. The ID is unique to each user and serves as a security measure to prevent automated scripts from impersonating humans. By confirming that you are a human through this process, news organizations can ensure that sensitive information is being shared with genuine individuals rather than bots trying to deceive them.
Source: https://www.sfgate.com/sf-culture/article/green-day-swaps-palestine-lyric-coachella-20273345.php