# Evidence: Changes, rollback, and artifact provenance

Copy this template into your own portfolio and fill it after running your modified exercise.

## Evidence required

Keep source/configuration/data hashes, actual held-out candidate predictions, the rejected degraded release and unchanged active pointer, followed by verified rollback.

- Command: `python3 phases/16-operations/04-changes-rollback-and-artifact-provenance/code/main.py`
- Working directory: repository root
- Python / JAX / NumPy versions: 
- Hardware and device: 
- My prediction before running: 
- My change to the exercise: 
- Exit code and meaningful output: 
- Why the result supports or contradicts my prediction: 
- Checkpoint result: 
- Artifact link or saved filename: 
- Portfolio status: saved in local workspace