Nervos is a network that helps you use money safely online. They have two layers: one that checks if something is real and safe to use (layer 1), and another that makes transactions go faster and keeps your information private (layer 2).
This article talks about Nervos' Common Knowledge Base (CKB). CKB helps keep the whole network safe and trustworthy. It's like a safe place to keep your money and other important things online. It's the foundation of the whole Nervos Network.