> For the complete documentation index, see [llms.txt](https://docs.zus.network/zus-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zus.network/zus-docs/system-overview/providers-and-services.md).

# Providers and Services

The **Züs Subsystems** consist of various providers and services that ensure the **decentralization, security, and efficiency** of the network.

This section details the key providers responsible for blockchain operations and storage, along with helper subsystems that support the network infrastructure.

### **Core Subsystems Providers**

These are the fundamental providers that play a role in maintaining the blockchain and storage infrastructure:

* **Miner :** Miners are responsible for **maintaining the blockchain** and implementing the **consensus protocol**.
* **Sharder:** Sharders are responsible for **persisting blockchain data** and providing network insights through APIs.
* **Blobber :** Blobbers are the **primary storage providers** in the Züs network.
* **Validator:** Validators play a key role in **verifying Blobber storage claims**.
* **Authorizer:** The **Authorizer** facilitates the **ZCN↔WZCN Bridge Protocol**.

Check out more details in each section below:

{% content-ref url="/pages/8SmiuiNQjSHFzpFCjIYb" %}
[Miner](/zus-docs/system-overview/providers-and-services/miner.md)
{% endcontent-ref %}

{% content-ref url="/pages/bDX8CiDKVeVK80ehJFai" %}
[Sharder](/zus-docs/system-overview/providers-and-services/sharder.md)
{% endcontent-ref %}

{% content-ref url="/pages/o8CLuAb5HGP3QcgNEjFN" %}
[Blobber](/zus-docs/system-overview/providers-and-services/blobber.md)
{% endcontent-ref %}

{% content-ref url="/pages/fhOsB4wBKr8yoPczSSlt" %}
[Validator](/zus-docs/system-overview/providers-and-services/validator.md)
{% endcontent-ref %}

{% content-ref url="/pages/IS6jenixwlx6K07RQoid" %}
[Authorizer](/zus-docs/system-overview/providers-and-services/authorizer.md)
{% endcontent-ref %}

### Helper Subsystems Providers/Services

These additional services support network functionality and integration:

* **Node Locator (0DNS):** 0DNS helps external services and clients discover active network nodes.

Check out more details in each section below:

{% content-ref url="/pages/Qq75DsmjkdfR5fo4Ud2I" %}
[Node Locator (0DNS)](/zus-docs/system-overview/providers-and-services/node-locator-0dns.md)
{% endcontent-ref %}