The Beacon Chain was not originally processing Mainnet transactions. Instead, it was achieving consensus By itself condition by agreeing on active validators and their account balances. The first qualified block established by a validator was slot one. The one who validated it signed it, "Mr F was right here." https://financefeeds.com/best-copyright-memecoins-to-buy-6-hottest-coins-you-dont-want-to-miss/