# 3.3.3 H-Net Architecture

The DGT network can allow for a variety of architectures that are customizable for private networks. In the case of public networks or networks for ecosystems, a hybrid H-Net structure is proposed. Its main features include:

* The network combines several segments of different access types. This includes several private segments controlled by consortium participants, as well as a public segment.
* The joining of nodes to private segments is controlled through a certificate mechanism adapted for decentralized use.
* Nodes interact with the network through gateways and cluster intersections are not allowed. Each node belongs to one and only one segment.
* Nodes have different roles. In addition to the typical validators, leaders, and arbitrators, such roles as Notary are added – which interacts with off-chain operations, as well as Gateway – which interacts with other networks.&#x20;

<figure><img src="https://3210145376-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FSvanFNAf6Jf8kwvqcdRQ%2Fuploads%2FjIhFsozIaPvoqpuoXDxw%2Fimage.png?alt=media&#x26;token=0eb5585e-caa5-4a1b-9bcb-420e11826ecc" alt=""><figcaption><p><em>Figure 13 DGT Network High-Level View</em></p></figcaption></figure>
