By Signing up, you are going to receive emails about CoinDesk products and solutions and you also comply with our phrases of use and privacy policy. The first suitable block established by a validator was slot one. The one who validated it signed it, "Mr F was right here." https://financefeeds.com/barclays-fined-1-million-over-botching-net-capital-calculations-during-meme-stock-craze/