> For the complete documentation index, see [llms.txt](https://gitbook.jur.io/jur-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gitbook.jur.io/jur-documentation/the-lean-network-state-model/overview-of-jur-chain.md).

# Overview of Jur Chain

As a [substrate-based](https://substrate.io/) [PoS](https://www.geeksforgeeks.org/proof-of-stake-pos-in-blockchain/) chain, Jur’s modules provide flexible, advanced Web3 governance while creating the ultimate trustless coordination layer.

Jur adheres to the following principles of system design:

<figure><img src="/files/56juUc9Q4IyK52l1C9CH" alt=""><figcaption></figcaption></figure>

* **Modular:** Use what you want
* **Flexible:** Each module has different variations of logics, so that a community can select a sub-category that serves their needs
* **Interoperable:** Interact with Jur Chain through cross-chain communication
* **Secure:** Connected to the Polkadot Relay Chain
* **User Friendly:** Jur offers a set of easy-to-use dApps that interact with the Jur Chain
* **Progressively Decentralized:** Starting with the sudo pallet for efficiency and speed of execution Jur Chain will progressively be decentralized until the runtime is completely managed by the JUR token holders