# Location / Mobility Oracle — Free Sample

**Cost:** free evaluation · **Canary:** $0.02 · **Challenge stake:** $0.01

## Privacy-first free eval

```http
GET https://lvlltd.com/api/sco?op=eval&oracle=oracle-location
```

Free fields: `geohash`, `accuracy_m`, `privacy_mode`, `oracle_confidence`, `observed_at`.  
**No exact lat/lon** on free samples.

## Multi-source canary with origin proof

```json
{
  "op": "canary",
  "oracle_id": "oracle-location",
  "providers": ["lvl-foundation-a", "lvl-foundation-b"],
  "query": { "lat": 37.7749, "lon": -122.4194, "accuracy_m": 15 }
}
```

Each sealed pack includes:

- Precise coordinates (settlement path)
- `origin_proof` with `payload_hash` + content-bind signature
- `oracle_confidence.overall_score` (0–100)

## Consensus + challenge

Same SCO sequence as foundation oracles. Reputation from public ledger only.