By Signing up, you may receive emails about CoinDesk products and solutions and you conform to our conditions of use and privateness policy. The first qualified block produced by a validator was slot 1. The one who validated it signed it, "Mr File was here." Participants over the livestream https://financefeeds.com/4-cryptos-to-strengthen-your-portfolio-and-make-75000-from-only-1000-in-2025/