Reporters visited booths of Worldcoin, a global blockchain project championed by OpenAI CEO Sam Altman, in Nairobi, Bengaluru, and Hong Kong to get a better sense of who was signing up for the service and why. In all three cities, the surge of interest for registering their biometrics to the blockchain was driven primarily by the sign-up bonuses. Relatively few people were familiar with the goals of the project.