paper updated with the placement results and machine-checked: new section 'Where the similarity is read' (2527 on APS below every method measured, 5511 over both sets, the non-composition of the two readings, and the two negatives with their numbers), abstract extended, verify_article.py now also checks every new number against its own sweep file — all green, pdflatex clean

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

verify_article.py

@@ -11,6 +11,7 @@ end of a stated trade (better average, one constant), so both are checked.
 from __future__ import annotations
 
 import json
+import os
 import sys
 
 from report_sweep import PROPOSED, head_to_head, place, rank
@@ -199,6 +200,8 @@ def main():
                   ("start", 14540)]:
         check(f"scale {sc} best", best_by_scale[sc], v)
 
+    verify_placement_modes()
+
     print()
     if FAILS:
         print(f"{len(FAILS)} STATED NUMBERS DO NOT MATCH THE DATA:")
@@ -208,5 +211,57 @@ def main():
     print("every number stated in the paper matches the sweep data.")
 
 
+# --------------------------------------------------------------------------
+# Section "where the similarity is read" (PREREGs of 2026-09-20/21).  Each new
+# grid lives in its OWN sweep file so the published sweep_full.json stays the
+# artefact of the original claims; every number the new section quotes is
+# re-checked here against that file.
+# --------------------------------------------------------------------------
+PLACEMENT = {
+    # file                     label                                          APS   CHA
+    "sweep_slope.json":     ("slope.ratio.derived3.project",                  2848, 3074),
+    "sweep_points.json":    ("pure+shape+slope.ratio.derived3.safe",          2527, 3108),
+    "sweep_direction.json": ("pure+dissim+slope.ratio.derived3.project",      2726, 2785),
+    "sweep_combo.json":     ("pure+shape+dissim+slope.ratio.derived3.safe",   2884, 2859),
+    "sweep_gate.json":      ("gate.ratio.derived.project",                    4449, 2991),
+    "sweep_log.json":       ("log.ratio_soft.derived.safe",                   6940, 3474),
+}
+PLACEMENT_PER_SET = {
+    "sweep_direction.json": ("CHA", "pure+dissim+slope.ratio.derived3.safe", 2683),
+    "sweep_gate.json": ("CHA", "gate.ratio_soft.derived.safe", 2851),
+}
+
+
+def verify_placement_modes():
+    print("\nThe placement modes (each in its own sweep file):")
+    for path, (lbl, aps, cha) in PLACEMENT.items():
+        if not os.path.exists(path):
+            print(f"  !!  {path} absent — the section quoting it cannot be verified")
+            FAILS.append(f"missing {path}")
+            continue
+        with open(path, encoding="utf8") as fh:
+            rows = json.load(fh)
+        try:
+            d = next(r for r in rows if r["label"] == lbl)
+        except StopIteration:
+            print(f"  !!  {lbl} not in {path} — stale sweep")
+            FAILS.append(f"{lbl} missing from {path}")
+            continue
+        check(f"{lbl} APS", d["APS"]["total"], aps)
+        check(f"{lbl} CHA", d["CHA"]["total"], cha)
+        check(f"{lbl} solved", d["APS"]["solved"] + d["CHA"]["solved"], 193)
+        check(f"{lbl} guarantee (over 2x)", d["APS"]["over"] + d["CHA"]["over"], 0)
+    for path, (setname, lbl, want) in PLACEMENT_PER_SET.items():
+        if not os.path.exists(path):
+            continue
+        with open(path, encoding="utf8") as fh:
+            rows = json.load(fh)
+        d = next((r for r in rows if r["label"] == lbl), None)
+        if d is None:
+            FAILS.append(f"{lbl} missing from {path}")
+            continue
+        check(f"{lbl} {setname} per-set", d[setname]["total"], want)
+
+
 if __name__ == "__main__":
     main()