# scratch_actor

zero2robot live-demo policy. Loaded by the site at `/models/scratch_actor.onnx` and provisioned at build time by `site/scripts/fetch_models.py` (sha256-verified).

| field | value |
|---|---|
| chapter | `ch4.3-serl` |
| contract | `v1` |
| seed | `0` |
| tier | `cpu-laptop` |
| exporter | `curriculum/phase4_capstone/ch4.3_serl/export_serl_onnx.py` |
| sha256 | `e37483838052e0431d37176d4a6006df8eac7fd52949c1ad31660d74e9e7a4cd` |

Reproduce: run the exporter above at the recorded seed on the recorded tier; the export is CPU-deterministic, so the bytes (and this sha256) reproduce exactly.