andy-zen-dev · Sep 24, 2026 · Sep 24, 2026 · Sep 24, 2026 · Sep 24, 2026
diff --git a/.github/workflows/perelman-pdf-facsimile-review.yml b/.github/workflows/perelman-pdf-facsimile-review.yml
@@ -10,6 +10,9 @@ on:
       - "corpus/candidates/perelman-entertaining-physics-book1-1913-ru.pdf-facsimile-interior.md"
       - "corpus/candidates/source-edition-traces/perelman-entertaining-physics-book1-1913-ru.pdf-facsimile-interior.json"
       - "tests/test_perelman_pdf_facsimile_interior.py"
+      - "corpus/candidates/perelman-entertaining-physics-book1-1913-ru.pdf-facsimile-midbody.md"
+      - "corpus/candidates/source-edition-traces/perelman-entertaining-physics-book1-1913-ru.pdf-facsimile-midbody.json"
+      - "tests/test_perelman_pdf_facsimile_midbody.py"
   workflow_dispatch:
 
 permissions:
@@ -47,14 +50,17 @@ jobs:
           echo '3c616f547ff283a2cafd1ac26b448a8e8013f648  build/facsimile/perelman-1913.pdf' | sha1sum --check --strict
           echo '3d87d22a42ad949654265e066f81211d7831e32c8b62b96c967cd4cd33e7ed61  build/facsimile/perelman-1913.pdf' | sha256sum --check --strict
 
-      - name: Render bounded transition, interior, and tail pages
+      - name: Render bounded transition, mid-body, interior, and tail pages
         run: |
           set -euo pipefail
           pdftoppm -f 9 -l 13 -r 120 -jpeg build/facsimile/perelman-1913.pdf build/facsimile/transition
+          pdftoppm -f 59 -l 61 -r 120 -jpeg build/facsimile/perelman-1913.pdf build/facsimile/midbody-a
+          pdftoppm -f 109 -l 111 -r 120 -jpeg build/facsimile/perelman-1913.pdf build/facsimile/midbody-b
+          pdftoppm -f 159 -l 161 -r 120 -jpeg build/facsimile/perelman-1913.pdf build/facsimile/midbody-c
           pdftoppm -f 199 -l 206 -r 120 -jpeg build/facsimile/perelman-1913.pdf build/facsimile/interior
           pdftoppm -f 217 -l 223 -r 120 -jpeg build/facsimile/perelman-1913.pdf build/facsimile/tail
           rm build/facsimile/perelman-1913.pdf
-          (cd build/facsimile && sha256sum transition-*.jpg interior-*.jpg tail-*.jpg | sort) > build/facsimile/rendered-pages.sha256
+          (cd build/facsimile && sha256sum transition-*.jpg midbody-*.jpg interior-*.jpg tail-*.jpg | sort) > build/facsimile/rendered-pages.sha256
           printf 'Rendered files:\n'
           cat build/facsimile/rendered-pages.sha256
 
@@ -67,13 +73,17 @@ jobs:
           if test -f tests/test_perelman_pdf_facsimile_interior.py; then
             python -m unittest tests.test_perelman_pdf_facsimile_interior -v
           fi
+          if test -f tests/test_perelman_pdf_facsimile_midbody.py; then
+            python -m unittest tests.test_perelman_pdf_facsimile_midbody -v
+          fi
 
       - name: Upload transient facsimile review artifact
         uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: perelman-1913-facsimile-review
           path: |
             build/facsimile/transition-*.jpg
+            build/facsimile/midbody-*.jpg
             build/facsimile/interior-*.jpg
             build/facsimile/tail-*.jpg
             build/facsimile/rendered-pages.sha256

diff --git a/...candidates/perelman-entertaining-physics-book1-1913-ru.pdf-facsimile-midbody.md b/...candidates/perelman-entertaining-physics-book1-1913-ru.pdf-facsimile-midbody.md
@@ -0,0 +1,46 @@
+# Perelman 1913 PDF — broad mid-body facsimile anchors
+
+Candidate: `perelman-entertaining-physics-book1-1913-ru`
+
+Status: **source-free observed facsimile evidence; review pending**
+
+This companion records one bounded visual audit of three widely separated interior windows from the exact frozen 223-page Commons PDF. The workflow reverified the 28,168,847-byte carrier, SHA-1 `3c616f547ff283a2cafd1ac26b448a8e8013f648`, and SHA-256 `3d87d22a42ad949654265e066f81211d7831e32c8b62b96c967cd4cd33e7ed61` before rendering. No PDF bytes, page images, OCR, or literary source text are committed.
+
+## Direct observations
+
+| Carrier page | Visible printed page | Observation |
+| ---: | ---: | --- |
+| 59 | 50 | directly visible |
+| 60 | — | no printed folio directly visible |
+| 61 | 52 | directly visible |
+| 109 | 100 | directly visible |
+| 110 | 101 | directly visible |
+| 111 | 102 | directly visible |
+| 159 | 150 | directly visible |
+| 160 | 151 | directly visible |
+| 161 | 152 | directly visible |
+
+Every **directly visible** printed folio in these windows is compatible with `carrier_page - printed_page = 9`. Carrier page 60 is deliberately **not** assigned printed page 51: the audit saw no visible folio there, so filling that value by arithmetic would turn an observation into an inference.
+
+## Decision
+
+The new anchors strengthen the working `+9` mapping hypothesis across the book interior, but they do **not** promote a global page-offset rule. In particular:
+
+- the observed samples do not prove every unobserved carrier page;
+- a visible printed folio is not present on every audited page;
+- carrier page 60 remains an explicitly unlabelled observed page rather than an inferred mapping row;
+- complete bibliographic-to-carrier mapping, the complete numbered-body range, PDF↔DjVu equivalence, canonical extraction-carrier selection, OCR correctness, literary-page selection/body identity, selected-body `>=300k`, FantLab analyzer-input identity, diagnostic readiness, M2 admissibility, and calibration admission remain closed.
+
+A later complete-mapping unit must model unlabelled folios explicitly and gather enough direct evidence to justify any total map; it may not silently interpolate page 60 or other gaps.
+
+## Reproducibility
+
+Authoring capture workflow: `36016017921` at head `56f2e0bec65bc65f9b1d5c16f855da8e8f430ce4`.
+
+Transient artifact: `10814104285`, GitHub digest `sha256:2eb64d55fd61f4cb26a425070759bc4ffe7f2e2c8be6d36631550ecbf7c21d71`, one-day retention. The downloaded ZIP was independently recomputed to the same SHA-256 during authoring.
+
+The source-free render-manifest file had SHA-256 `33457b4afaeed309fa6c604bfb0214f4be85979289033ed272f53f978ce30518`. Exact per-image SHA-256 values are frozen in the JSON evidence artifact and deterministic regression.
+
+Canonical machine evidence: [`source-edition-traces/perelman-entertaining-physics-book1-1913-ru.pdf-facsimile-midbody.json`](source-edition-traces/perelman-entertaining-physics-book1-1913-ru.pdf-facsimile-midbody.json).
+
+Evidence JSON physical SHA-256: `26291c4add9272fa2572425597deb99ec8b431cffb374119c134867aca9e02ea`.
diff --git a/...rce-edition-traces/perelman-entertaining-physics-book1-1913-ru.pdf-facsimile-midbody.json b/...rce-edition-traces/perelman-entertaining-physics-book1-1913-ru.pdf-facsimile-midbody.json
@@ -0,0 +1,145 @@
+{
+  "admitted_for_calibration": false,
+  "binary_bytes_committed": false,
+  "candidate_id": "perelman-entertaining-physics-book1-1913-ru",
+  "canonical_extraction_carrier_selected": false,
+  "carrier": {
+    "byte_count": 28168847,
+    "kind": "pdf",
+    "page_count": 223,
+    "sha1": "3c616f547ff283a2cafd1ac26b448a8e8013f648",
+    "sha256": "3d87d22a42ad949654265e066f81211d7831e32c8b62b96c967cd4cd33e7ed61"
+  },
+  "decision": {
+    "all_directly_visible_labels_match_carrier_minus_printed_offset": 9,
+    "bibliographic_to_carrier_mapping_complete": false,
+    "complete_numbered_body_range_proved": false,
+    "global_carrier_minus_printed_offset_asserted": false,
+    "interior_windows_directly_observed": [
+      [
+        59,
+        61
+      ],
+      [
+        109,
+        111
+      ],
+      [
+        159,
+        161
+      ]
+    ],
+    "mapping_may_be_extrapolated_between_observed_anchors": false,
+    "next_evidence": "Independently review exact-head evidence. A later mapping unit must explicitly model unlabelled folios and verify enough remaining carrier pages to justify any complete carrier map; do not fill carrier page 60 or other gaps by arithmetic alone.",
+    "page_without_visible_folio_carrier_page": 60,
+    "page_without_visible_folio_directly_observed": true,
+    "printed_label_for_unlabelled_page_inferred": false,
+    "reason": "Three widely separated exact-carrier windows directly show eight visible printed folios. Every visible label is compatible with carrier page minus printed page = 9, while carrier page 60 has no visible folio. The observations strengthen the mapping hypothesis but do not make visible labels total and do not prove unobserved pages or a global offset.",
+    "status": "broad_interior_anchors_compatible_with_plus9_but_global_mapping_incomplete"
+  },
+  "diagnostic_ready": false,
+  "evidence_version": "scriptorium-perelman-1913-pdf-facsimile-midbody-v1",
+  "fantlab_source_edition_match": "unknown",
+  "literary_body_frozen": false,
+  "literary_page_selection_bound": false,
+  "literary_source_text_included": false,
+  "m2_parity_admissible": false,
+  "minimum_300k_proved_from_frozen_body": false,
+  "observation": {
+    "artifact_retention_days": 1,
+    "authoring_artifact_digest": "sha256:2eb64d55fd61f4cb26a425070759bc4ffe7f2e2c8be6d36631550ecbf7c21d71",
+    "authoring_artifact_id": 10814104285,
+    "authoring_workflow_head_sha": "56f2e0bec65bc65f9b1d5c16f855da8e8f430ce4",
+    "authoring_workflow_run_id": 36016017921,
+    "method": "manual_visual_inspection_of_transient_renders_from_exact_verified_pdf",
+    "observed_at_utc": "2026-09-24T14:54:00Z",
+    "pages": [
+      {
+        "carrier_page": 59,
+        "label_observation": "directly_visible",
+        "rendered_image_sha256": "f707d612d9b9dc864d4436ee4d48e09d9c15f0c9d2588e8af36f835501f1af86",
+        "rendered_review_filename": "midbody-a-059.jpg",
+        "surface_kind": "numbered_body_surface",
+        "visible_printed_page_label": "50"
+      },
+      {
+        "carrier_page": 60,
+        "label_observation": "not_visible",
+        "rendered_image_sha256": "cbbb8fdd29d66db5338fc0ce704114f05d52d52ef844450718a65f80f1b9610b",
+        "rendered_review_filename": "midbody-a-060.jpg",
+        "surface_kind": "numbered_body_surface",
+        "visible_printed_page_label": null
+      },
+      {
+        "carrier_page": 61,
+        "label_observation": "directly_visible",
+        "rendered_image_sha256": "ca527025615d4c1549112fbb9fbab4603c5589f3385c6d439befa19717cdc599",
+        "rendered_review_filename": "midbody-a-061.jpg",
+        "surface_kind": "numbered_body_surface",
+        "visible_printed_page_label": "52"
+      },
+      {
+        "carrier_page": 109,
+        "label_observation": "directly_visible",
+        "rendered_image_sha256": "a9a5334648e69304fa522bfc88345a979b7566b52c9be4f9c8e318e0b65dbb55",
+        "rendered_review_filename": "midbody-b-109.jpg",
+        "surface_kind": "numbered_body_surface",
+        "visible_printed_page_label": "100"
+      },
+      {
+        "carrier_page": 110,
+        "label_observation": "directly_visible",
+        "rendered_image_sha256": "5928c72fd85f1c5ac2c00949c54d9096b103dc164bc0f7f802054761f36c0891",
+        "rendered_review_filename": "midbody-b-110.jpg",
+        "surface_kind": "numbered_body_surface",
+        "visible_printed_page_label": "101"
+      },
+      {
+        "carrier_page": 111,
+        "label_observation": "directly_visible",
+        "rendered_image_sha256": "8cd80aad72d1739193563d3c5fa8d1dc5af1219b26e8b1dc461a18e51d633c0e",
+        "rendered_review_filename": "midbody-b-111.jpg",
+        "surface_kind": "numbered_body_surface",
+        "visible_printed_page_label": "102"
+      },
+      {
+        "carrier_page": 159,
+        "label_observation": "directly_visible",
+        "rendered_image_sha256": "b970d5e0aa4fcbc2b99f8176485f9a320d3bcfc4e4cb53d5831d1b1562143d8a",
+        "rendered_review_filename": "midbody-c-159.jpg",
+        "surface_kind": "numbered_body_surface",
+        "visible_printed_page_label": "150"
+      },
+      {
+        "carrier_page": 160,
+        "label_observation": "directly_visible",
+        "rendered_image_sha256": "aa609387b556626706c33187e24025040deba5c49e512c1a5fee39c6ebded4e2",
+        "rendered_review_filename": "midbody-c-160.jpg",
+        "surface_kind": "numbered_body_surface",
+        "visible_printed_page_label": "151"
+      },
+      {
+        "carrier_page": 161,
+        "label_observation": "directly_visible",
+        "rendered_image_sha256": "0c26242896309e5d0e9a476570014e251ed40223f3289cdcd2a8fe31f43daf61",
+        "rendered_review_filename": "midbody-c-161.jpg",
+        "surface_kind": "numbered_body_surface",
+        "visible_printed_page_label": "152"
+      }
+    ],
+    "pdf_bytes_deleted_before_artifact_upload": true,
+    "render_commands": [
+      "pdftoppm -f 59 -l 61 -r 120 -jpeg",
+      "pdftoppm -f 109 -l 111 -r 120 -jpeg",
+      "pdftoppm -f 159 -l 161 -r 120 -jpeg"
+    ],
+    "render_manifest_sha256": "33457b4afaeed309fa6c604bfb0214f4be85979289033ed272f53f978ce30518",
+    "rendered_page_bytes_committed": false,
+    "transient_review_artifact_uploaded": true
+  },
+  "ocr_correctness_verified": false,
+  "ocr_included": false,
+  "page_images_committed": false,
+  "pdf_djvu_page_equivalence_verified": false,
+  "source_free": true
+}
diff --git a/project/CHANGELOG.d/SCRIP-CORPUS-085.md b/project/CHANGELOG.d/SCRIP-CORPUS-085.md
@@ -0,0 +1,10 @@
+## 2026-09-24 — Perelman 1913 broad mid-body facsimile anchors
+
+- Selected SCRIP-CORPUS-085 / Issue #259 from the normal-flow corpus/provenance queue after confirming no interrupted open PR required recovery.
+- Extended the exact-carrier Perelman facsimile workflow to render three new bounded mid-body windows: carrier pages 59–61, 109–111 and 159–161.
+- Hosted capture run `36016017921` reverified the exact 223-page / 28,168,847-byte Commons PDF (`sha1:3c616f547ff283a2cafd1ac26b448a8e8013f648`, `sha256:3d87d22a42ad949654265e066f81211d7831e32c8b62b96c967cd4cd33e7ed61`) before rendering and completed successfully.
+- Transient artifact `10814104285` was independently downloaded; its ZIP SHA-256 recomputed to GitHub's `2eb64d55fd61f4cb26a425070759bc4ffe7f2e2c8be6d36631550ecbf7c21d71`.
+- Direct visual inspection retained source-free folio observations 59→50, 61→52, 109→100, 110→101, 111→102, 159→150, 160→151 and 161→152. Carrier page 60 directly has no visible folio and is deliberately not inferred as printed page 51.
+- All directly visible sampled labels are compatible with carrier-minus-printed=9, but no global offset or unobserved mapping is promoted. This audit therefore strengthens the mapping hypothesis while also proving that visible folios are not a total per-page signal.
+- Added source-free JSON evidence, public companion and five deterministic regressions. Evidence JSON physical SHA-256: `26291c4add9272fa2572425597deb99ec8b431cffb374119c134867aca9e02ea`; focused regression is 5/5 green.
+- Draft PR #260 remains REVIEW_PENDING for independent exact-head judgement. Complete mapping, PDF↔DjVu equivalence, canonical carrier, OCR correctness, literary-body/>=300k, FantLab-input and M2/parity gates remain closed; M2 remains 0/5.