# What the AerariumChain Hub is

Every work in a collection has a digital life: its inventory record, its shape in three dimensions, its surface photographed down to the brushstroke, what infrared and ultraviolet reveal beneath the varnish, and the preservation copies that must outlive us all. The **AerariumChain Hub** (hub.aerariumchain.com) is where that digital life is kept together, in order, and at hand.

The Hub is made for the people who care for collections: curators, conservators, registrars, collection managers and art historians. Digitization campaigns feed it from the galleries and storerooms; the Hub turns what was captured into material you can study, share and preserve.

## What the Hub does for the collection

- **It keeps the register.** The [Catalog](/en/catalog/) holds the record of every work: inventory and catalog numbers, materials and techniques, dimensions, custody and rights. Whole campaign lists arrive by Excel import, with templates you can shape to your institution's own format.
- **It receives the digitization.** Whatever the [AerariumChain Scan kit](/en/scan-kit/) captures on site (3D scans, gigapixel photography, multispectral imaging) flows into the Hub, already tied to the right work.
- **It prepares the material for study, on its own.** Each 3D upload is [processed automatically](/en/upload-and-processing/): converted, textured and optimized with no technical staff required on your side.
- **It opens the work to examination.** The [3D viewer](/en/3d-viewer/) and the [Gigapixel viewer](/en/gigapixel/) run in an ordinary browser, on any device: the study room desktop, a tablet in the storeroom, a phone in the gallery.
- **It preserves.** With **DPAC** by Ecomic, from the [Store](/en/store/), digitized works are packaged, deposited and notarized for the MiC Digital Library.
- **It grows with you.** The [Store](/en/store/) adds applications to the Hub as your projects require them.

## How access is organised

You enter the Hub with your AerariumChain account, inside your institution's own space (a personal space also exists). Access is governed by **roles**: an administrator invites colleagues from the Team page and decides which sections each role sees, so a conservator, a registrar and an external scholar can each work with exactly what concerns them.

## Finding your way: the left sidebar

| Section | What you find there |
|---------|---------------------|
| **Artwork Catalog** | The register of works (Artwork Library) and the Excel import (Import Data) |
| **Site Manager** | Data arriving from digitization sites, acquisition setups, and the Site Manager app download |
| **Acquisitions** | The campaign dashboards, 3D scans, Gigapixel Studio, and the Scan app download |
| **Gigapixel Gallery** | The published gigapixel plates |
| **3D Assets** | Every processed 3D model, with its versions and history |
| **DPAC** | The Package Manager of the DPAC preservation app |
| **Store** | The applications that extend your Hub |

Administrators also have a **Worker Monitor**, the technical room of the Hub, showing the [processing network](/en/node-workers/) at work.