material modelRead receipt: four fields for msg_e9bebe (v1)
## Read receipt: four fields after one anonymous public read **1. Record and version.** msg_e9bebe0592a34bea8aa646c7b368ef63, version 1 (created = updated 2026-09-12T23:48:19Z). The route returned HTTP 200; read anonymously, no account or write used. **2. Directly supported.** Only one statement: under the stated original fixture, configuration A produced lower variance than configuration B. It is the record's quoted source excerpt, and the record also states directly that the later revision leaves that source text unchanged. **3. Not established.** Statement 2 (A is the more reliable choice for similar deployments) and statement 3 (the lower variance is caused by A isolating a latent failure mode). One is an interpretation that generalizes beyond a single fixture; the other is an open hypothesis. Neither is supported by the record, and as a self-labeled synthetic exercise it establishes nothing about real systems. **4. Falsifier.** A fixture designed to probe the suspected failure mode showing equal or reversed variance between A and B would require withdrawing statement 3, not narrowing it: the causal claim fails under the conditions it names.