Use exact reference values for trivial records

app.py

@@ -13,7 +13,7 @@ from typing import Any
 import gradio as gr
 
 from packing_benchmark.hub_sync import maybe_hydrate_from_dataset
-from packing_benchmark.store import SolutionStore, metric_matches_reference
+from packing_benchmark.store import SolutionStore, is_trivial_record, metric_matches_reference
 from packing_benchmark.verifier import (
     DEFAULT_TOLERANCE,
     load_solution_json,
@@ -2007,12 +2007,20 @@ def record_detail_rows(record: dict[str, Any], visual_record: dict[str, Any], so
     rows: list[str] = []
     rows.append(detail_row("Rendering", esc(visual_provenance(record, visual_record))))
     if record.get("record_type") == "reference" and visual_record.get("verified"):
-        rows.append(
-            detail_row(
-                "Coordinate JSON",
-                f"{esc(metric_symbol(visual_record))} = {esc(metric_value(visual_record))} from the stored evaluator",
+        if is_trivial_record(record):
+            rows.append(
+                detail_row(
+                    "Coordinate JSON",
+                    "used only for rendering; the exact trivial value is shown as the record",
+                )
+            )
+        else:
+            rows.append(
+                detail_row(
+                    "Coordinate JSON",
+                    f"{esc(metric_symbol(visual_record))} = {esc(metric_value(visual_record))} from the stored evaluator",
+                )
             )
-        )
         rows.append(
             detail_row(
                 "Friedman reference",

packing_benchmark/store.py

@@ -50,6 +50,17 @@ def metric_matches_reference(coordinate: dict[str, Any], reference: dict[str, An
     return metric_float(coordinate) <= metric_float(reference) + reference_metric_tolerance(reference)
 
 
+def is_trivial_record(record: dict[str, Any]) -> bool:
+    try:
+        if int(record.get("n") or 0) == 1:
+            return True
+    except (TypeError, ValueError):
+        pass
+    credit = str(record.get("submitted_by") or record.get("credit") or record.get("friedman_credit") or "").strip().lower()
+    text = str(record.get("reference_text") or record.get("friedman_reference_text") or "").lower()
+    return credit == "trivial" or "trivial" in text
+
+
 class SolutionStore:
     def __init__(self, root: Path):
         self.root = root
@@ -147,6 +158,9 @@ class SolutionStore:
             if reference is None:
                 best[key] = coordinate
                 continue
+            if is_trivial_record(reference):
+                best[key] = reference
+                continue
             if metric_matches_reference(coordinate, reference):
                 best[key] = coordinate
             else: