{
  "schema_version": 2,
  "axis": "IMP-89 89-a u4 — final.html SHA baseline captured via FULL run_phase_z2_mvp1 pipeline (flag OFF / default)",
  "description": "Frozen SHA-256 of `final.html` bytes (the artifact written to disk at src/phase_z2_pipeline.py:5994-5996) captured by running the full Phase Z pipeline end-to-end for each mdx 01-05 under PHASE_Z_B4_MAPPER_SOURCE=OFF. Under flag OFF the 89-a selector `_select_mapper_template_id(plan, T)` returns `T` verbatim, so the mapper input is byte-identical to the pre-89-a legacy call shape `map_mdx_to_slots(section, unit.frame_template_id)` — the rendered HTML and therefore the final.html SHA match the pre-89-a baseline. The u4 regression test runs the same pipeline shape under flag OFF and asserts SHA equality. Regenerate only when an upstream mapper/render/template delta is deliberately reviewed and accepted.",
  "captured_at_utc": "2026-05-23T15:03:40Z",
  "renderer": {
    "entrypoint": "src.phase_z2_pipeline.run_phase_z2_mvp1",
    "write_site": "src/phase_z2_pipeline.py:5994-5996",
    "artifact_relpath": "<RUNS_DIR>/<run_id>/phase_z2/final.html"
  },
  "mdx_batch": [
    "01.mdx",
    "02.mdx",
    "03.mdx",
    "04.mdx",
    "05.mdx"
  ],
  "mdx_files": {
    "01.mdx": {
      "mdx_file": "01.mdx",
      "run_id": "89a_baseline_01",
      "final_html_size_bytes": 29089,
      "sha256": "ad6f16a3068b5a55bd900122688f691ffef0716b91de52151551242773595487",
      "pipeline_exit_code": null
    },
    "02.mdx": {
      "mdx_file": "02.mdx",
      "run_id": "89a_baseline_02",
      "final_html_size_bytes": 25249,
      "sha256": "4832e3e45660eb95201425e975a4c285fb78493cf8d09d6395897f7897b1794b",
      "pipeline_exit_code": null
    },
    "03.mdx": {
      "mdx_file": "03.mdx",
      "run_id": "89a_baseline_03",
      "final_html_size_bytes": 39804,
      "sha256": "7dae47b3d51aa15a6752e4543a746abb4c4da71e7e95895eee8ef08c2eabc948",
      "pipeline_exit_code": null
    },
    "04.mdx": {
      "mdx_file": "04.mdx",
      "run_id": "89a_baseline_04",
      "final_html_size_bytes": 28042,
      "sha256": "ddb6bf2f8d76ca1f56588a50dd4af5aeb5f45e0a83d5241b83b5932d0c66d41c",
      "pipeline_exit_code": null
    },
    "05.mdx": {
      "mdx_file": "05.mdx",
      "run_id": "89a_baseline_05",
      "final_html_size_bytes": 21187,
      "sha256": "3ded2fff8cc45301675d2a8917af945b4003631688cad6f088976fd57ab9b12c",
      "pipeline_exit_code": 1
    }
  },
  "total_files": 5
}