This is a hand-written fixture article, not a real experiment produced by
any pipeline. It exists solely so the experiments content collection schema
and the future ProvenancePanel component have a well-formed entry to
validate and render against before Phase 6’s auto-blogger exists.
The provenance frontmatter block above is the always-visible summary; the
co-located fixture-provenance-demo.provenance.json sidecar holds fabricated
per-revision detail with aggregates consistent with this summary.