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

# Recording replay (signed URLs)

> stub — How environment recording playback uses signed URLs and client-side media loads.

Recording playback loads **signed URLs** from the API instead of inlined samples:

* **Camera**: MP4 (and legacy MKV chunk lists) via signed URL; the browser uses HTTP range requests as needed.
* **Robot / actuation**: Parquet via signed URL; the web app reads a **time window** of rows around the playhead (bounded memory).
* **Point clouds**: FlatBuffer chunk URLs plus coarse timestamp indexes from metadata.

The `GET /api/v1/environments/{uuid}/recordings/{recording_uuid}/data` endpoint returns compact **source descriptors** (URLs + bounds + column hints), not dense per-frame JSON.