# Sightline – Zero-latency vision verification engine using Yjs CRDTs and WebRTC

> Source: <https://sightline-crdt.netlify.app>
> Published: 2026-10-04 13:51:35+00:00

Collaborative Human-in-the-Loop Vision Verification

Click a quick verbal instruction or type a patch command to update the selected object in CRDT history:

Objects below 85% confidence or marked uncertain

Read-only CRDT projection — export never mutates collaborative state. Bounty: $50 per verified object.

```
curl -X POST https://api.sightline.ai/v1/crdt/ingest \
  -H "Authorization: Bearer sk_live_..." \
  -F "image=@warehouse_feed_04.jpg" \
  -F "confidence_threshold=0.85"
```

All metrics computed client-side from live CRDT state. Read-only projection — zero external analytics, zero server cost.