The runtime names its artifact before anything is switched on

Step 35 asks the deployed process to prove WHICH frozen curve it resolves —
artifact id, procedure, era, source digest, knot digest, curve digest, support,
servable, stage — with the shadow still OFF. The probe could not answer, so the
same shadowState() evaluator now resolves the promoted artifact and reports its
identity. Identity only: the curve is committed and addressable by artifact_id,
and repeating it on a status page would put a second copy of the truth there.

null means nothing is promoted, which is also the honest answer when the file is
missing or fails its policy at load.

Suite 404/404. Shadow OFF. Live OFF.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CQJeAG8vcDoL5zkiaJyVb8

tests/unit/artifactGovernance.test.js

@@ -172,3 +172,29 @@ describe('model-era transition law', () => {
     expect(check.servable).toBe(false);
   });
 });
+
+describe('the runtime can name its artifact with the shadow OFF', () => {
+  it('reports the full identity without enabling anything', () => {
+    const st = pc.shadowState({});
+    expect(st.shadow).toBe('OFF');
+    expect(st.live_serving).toBe('OFF');
+    const a = st.artifact;
+    for (const k of ['artifact_id', 'procedure_version', 'model_version', 'fit_as_of',
+      'training_cutoff', 'fit_n', 'source_digest', 'knot_digest', 'served_curve_digest',
+      'certified_bands', 'stage']) expect(a[k]).toBeTruthy();
+    expect(a.servable).toBe(true);
+    expect(a.approved_for_shadow).toBe(true);
+    expect(a.approved_for_live).toBe(false);
+    expect(a.wrong_era_rows).toBe(0);
+    expect(a.withheld_from_fit).toBe(0);
+  });
+
+  it('does not put a second copy of the curve on a status surface', () => {
+    expect(pc.shadowState({}).artifact.served_curve).toBeUndefined();
+  });
+
+  it('two resolutions return the same artifact — no refit between calls', () => {
+    expect(JSON.stringify(pc.shadowState({}).artifact))
+      .toBe(JSON.stringify(pc.shadowState({}).artifact));
+  });
+});