Blockchain-raws li kev lag luam yog qhov tseem ceeb rau lawv qhov kev hloov tsis tau. Thaum qhov no tuaj yeem ua tau zoo nyob rau hauv feem ntau, nws tuaj yeem dhau los ua qhov teeb meem, raws li kev txhim kho tsis ntev los no qhia tau tias $ 350, ...