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/models/governance/InfoTechCanonGovernanceModel.md

@@ -1066,6 +1066,53 @@ meeting decision
 audit sample
 ```
 
+A quantity offered as evidence MUST declare an **EvidenceBasis** (§11.34a)
+so a decision can be graded by the weakest thing it actually rests on.
+
+---
+
+## 11.34a EvidenceBasis
+
+An **EvidenceBasis** is how a quantity was obtained. A counted object and an
+assumed hourly rate are both numbers; they are not both knowledge.
+
+The closed vocabulary is held in `models/governance/evidence-basis.yaml` and
+is not restated as a second list here. Strength is a **tier**, not a total
+order: `invoiced` and `measured` are peers. `invoiced`, `measured`, and
+`quoted` are **evidenced**. Everything below that tier is inference.
+
+Normative rules:
+
+- A derived value is only as strong as its weakest input, compared by
+  tier. Members of the same tier do not rank against each other.
+- Basis `unknown` carries no quantity and MUST name the gap and its owner.
+  Any other basis MUST carry a quantity. Zero means measured-and-none;
+  unknown means not measured.
+- A derived value MUST record its inputs. Only a derived value may.
+- `invoiced` names a booked financial fact owned by the financial counterpart
+  (`fin-hub`). This model does not originate booked costs.
+
+Optional qualifiers: `proxy_for` (the value measures a different quantity
+than the one being reasoned about) and `observed_at` (the measurement has an
+age).
+
+A set of load-bearing values has a **decision grade**: `evidenced`,
+`projected`, `indicative`, or `insufficient`. The grade is no stronger than
+the weakest resolved basis.
+
+EvidenceBasis is not the intended/declared/applied/observed/assessed state
+qualifier (assimilation OQ-3). Those name *which world* a claim is about.
+This names *how a number* in that world was produced.
+
+Imported by ITC-CAP `CapabilityConsumption` (CAP-R10). Reusable on any
+measured or modelled quantity — actuals, thresholds, forecasts — without
+those records becoming capability artifacts.
+
+**Provenance.** Adapted from consumer demand `demand/EvidenceBasis.md`
+(resource-control `docs/evidence-basis.md` / `tools/basis.py`), 2026-08-15.
+The first application graded a provider comparison `indicative` that had
+been stated to the cent.
+
 ---
 
 ## 11.35 Assertion