Filter labels created after dated imagery
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@@ -11587,3 +11587,18 @@ Next gate:
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- The v5 tile audit passed with zero blank positive tiles. The automated CUDA
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loop started from the strongest prior candidate and will checkpoint every
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train/calibrate/test/background assessment without promoting failed models.
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## 2026-07-27 - Feature-level temporal mismatch filtering
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- Added provider-native creation-time filtering for dated training imagery:
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GRB `BEGINDATUM` and PICC `DATE_CREAT` are parsed with explicit UTC handling.
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Buildings created after the image period are audited and excluded rather
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than taught as labels for structures absent from the image.
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- Frozen corpus `building-be-v6-temporal-20260727-r1` excludes 246 such temporal
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mismatches, accepts 13,524 labels and retains all 75 independent AOIs.
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Manifest SHA-256 is
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`973828b453e6fbeb5c04aa567ddb615566d92825d8698654f5056d2997d382eb`.
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- Composition, spatial leakage, temporal identity and positive-imagery QA pass.
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The v6 train/calibration/test/background exports are ready for the next loop
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checkpoint; the running v5 iteration remains evidence but cannot supersede
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the cleaner v6 corpus.
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