Nervos envisions a future called Crypto Economies, where users' assets are represented by different kinds of cryptographic based tokens and are traded in a financial system that is open and programmable. In such a world, trading frictions between different assets are largely lower than our existing economy system today. Social resource can be allocated to the right hand in a faster and better way. In essence, a better world. To realize this vision, we will need an infrastructure for securely storing users' assets (tokens). This infrastructure also has to be programmable, so that we can design different tokens and transact them intelligently.
Nervos is a layered crypto-economy network. Nervos separates the infrastructure of a crypto-economy into two layers: a verification layer (layer 1) that serves as a trust root and smart custodian, and a generation layer (layer 2) for high-performance transactions and privacy protection. This document provides an overview of the Nervos Common Knowledge Base (CKB), a public permissionless blockchain and layer 1 of Nervos. CKB generates trust and extends this trust to upper layers, making Nervos a trust network. It's also the value store of the Nervos network, providing public, secure and censorship-resistant custody services for assets, identities and other common knowledge created in the network.