> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vangrid.io/llms.txt
> Use this file to discover all available pages before exploring further.

# How Edge-Computed Privacy Works in Vangrid

> Vangrid processes sensor data at the edge before transmission. Raw streams never leave the source node — your queries return only derived ground truth.

Vangrid's privacy model is architectural, not just a policy. Raw sensor data is processed directly on the edge node that captured it — your API calls never receive raw sensor streams and raw data never traverses the network. What reaches your application is derived, aggregated ground truth with a cryptographic provenance record.

## How edge-computed privacy works

Every Vangrid edge node runs a local compute layer that:

1. **Captures** multi-view observations from the physical environment
2. **Processes** those observations locally into structured ground truth (geometry, classification, confidence)
3. **Signs** the derived output with a node-specific cryptographic key
4. **Transmits** only the signed, derived record — never the raw sensor stream

Raw inputs (images, LiDAR scans, RF signals) are discarded at the edge after processing. They are never stored centrally and never included in API responses.

<Info>
  This means you cannot retrieve raw sensor imagery or unprocessed data through the Vangrid API. You receive verified, structured spatial observations only.
</Info>

## What you receive vs. what stays at the edge

| Data type                  | Available via API | Stays at edge    |
| -------------------------- | ----------------- | ---------------- |
| Geometry (location, shape) | Yes               | —                |
| Ground truth score         | Yes               | —                |
| Observation classification | Yes               | —                |
| Provenance hash            | Yes               | —                |
| Raw sensor images          | No                | Yes              |
| Unprocessed point clouds   | No                | Yes              |
| Node identity / location   | Aggregated only   | Precise location |

## Privacy for your queries

Your spatial queries are also handled with privacy in mind:

* Query parameters (AOI geometry) are not persisted beyond the request lifecycle
* Results are scoped strictly to your API key's authorized regions
* No query history is shared across customers

<Tip>
  If your use case requires data residency guarantees (e.g., data must not leave a specific country), contact [hello@vangrid.io](mailto:hello@vangrid.io) to discuss sovereign deployment options.
</Tip>