Canon 0.4.0: joinable consumer proof and EvidenceBasis

§10.3 now accepts a consumer record that validates against the live
catalog; resource-control's backup restatement is that proof. ITC-GOV
gains EvidenceBasis in tiers (invoiced and measured are peers) and
ITC-CAP requires it on every consumption row (CAP-R10).

infospace/artifacts/index.yaml

@@ -89,6 +89,8 @@ artifacts:
     relationships:
       - type: conforms_to
         target: kernel/itc-core
+      - type: introduces
+        target: catalog/evidence-basis
   - id: model/purpose-demand-extension
     path: models/governance/InfoTechCanonPurposeDemandExtension.md
     kind: model-extension
@@ -127,10 +129,21 @@ artifacts:
         target: model/purpose-demand-extension
       - type: uses
         target: model/observability
+      - type: uses
+        target: catalog/evidence-basis
       - type: introduces
         target: capability-catalog/itc-cap
       - type: derived_from
         target: assimilation/it-capability-canon
+  - id: catalog/evidence-basis
+    path: models/governance/evidence-basis.yaml
+    kind: concept-catalog
+    title: InfoTechCanon Evidence Basis Catalog
+    provenance:
+      source_path: demand/EvidenceBasis.md
+      placement: adapted
+      placement_workplan: ITC-WP-0015
+    relationships: []
   - id: capability-catalog/itc-cap
     path: models/capability/capabilities.yaml
     kind: capability-catalog