> For the complete documentation index, see [llms.txt](https://dnft.gitbook.io/dnft/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dnft.gitbook.io/dnft/technical-architecture/overview-1.md).

# Overview

The DNFT Protocol network is based on the Polkadot network developed through the substrate framework. It’s a smart contract service network built to connect EVM blockchains. The technical architecture of DNFT Protocol Network can be divided into three layers, which is the chain layer, protocol layer and application layer.

![](https://lh3.googleusercontent.com/ZCqWK7Ac7nDAANwepQInSXrEO3xnh87aNDX5TnNVAm8GP_zE_gDxAtfRr6RMjIgmGnjrOLTFxzmeMG6YzfONMQRZQYgYlZWoNHgc3MMfPHf2ODSukYsuVkt71dWLtyNpXlH50kkd)