> For the complete documentation index, see [llms.txt](https://ts38.gitbook.io/zeus-time/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ts38.gitbook.io/zeus-time/welcome/readme.md).

# Meet ZEUS!

## **Verifiable Time. Deterministic Receipts.**

ZEUS is a verifiable time primitive.

It does not replace civil time.\
It does not compete with clocks.\
It proves ordering, integrity, and duration in a deterministic way.

ZEUS produces cryptographically verifiable receipts that can be independently checked without trusting the service that issued them.

{% hint style="success" %}
You can use ZEUS locally via the npm package, or use ZEUS Verify as a hosted stamping service.
{% endhint %}

***

### Why ZEUS?

Traditional timestamps rely on trust.

ZEUS produces a time-based proof that can be independently verified.

* Deterministic output
* Cryptographically hashed receipts
* No reliance on centralized time authorities
* Independent verification
* Stable receipt format

ZEUS treats Unix time as input material, not truth.

***

### Two Ways to Use ZEUS

#### ZEUS Core (npm)

Install locally and generate verifiable receipts inside your own application.

Ideal for:

* Internal systems
* Audit logging
* Local-first workflows
* High-integrity pipelines

#### ZEUS Verify (API)

Use the hosted ZEUS stamping service.

* Issue API keys
* Stamp payloads
* Verify receipts
* Retrieve stored receipts

**Public verification remains open.**