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    "Flood start": 2241,
    "Flood close": 2240,
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    }
  ],
  "coordinate_template_overlaps": [
    {
      "coordinate_pair": [
        3298,
        2240
      ],
      "context_term_sets": [
        [
          650,
          0,
          60,
          0,
          -2
        ],
        [
          650,
          130,
          60,
          215,
          2
        ]
      ],
      "labelled_rows": [
        {
          "upper_record_index": 71,
          "lower_record_index": 40,
          "upper": {
            "tradition": "LXX",
            "gear": 2,
            "role": "Flood start",
            "Cainan": 1,
            "Terah60": 1,
            "full430": 1,
            "center": 3298,
            "base_native_Cainan": 1,
            "base_center": 3238
          },
          "lower": {
            "tradition": "MT",
            "gear": 1,
            "role": "Flood close",
            "Cainan": 0,
            "Terah60": 0,
            "full430": 0,
            "center": 2240,
            "base_native_Cainan": 0,
            "base_center": 2455
          },
          "role_difference": 1,
          "context_terms": [
            650,
            130,
            60,
            215,
            2
          ],
          "context_offset": 1057,
          "person_rail_correction": 0,
          "total": 1058
        },
        {
          "upper_record_index": 71,
          "lower_record_index": 349,
          "upper": {
            "tradition": "LXX",
            "gear": 2,
            "role": "Flood start",
            "Cainan": 1,
            "Terah60": 1,
            "full430": 1,
            "center": 3298,
            "base_native_Cainan": 1,
            "base_center": 3238
          },
          "lower": {
            "tradition": "MT",
            "gear": 3,
            "role": "Noah death",
            "rail": null,
            "Cainan": 1,
            "Terah60": 0,
            "full430": 1,
            "center": 2240
          },
          "role_difference": 350,
          "context_terms": [
            650,
            0,
            60,
            0,
            -2
          ],
          "context_offset": 708,
          "person_rail_correction": 0,
          "total": 1058
        },
        {
          "upper_record_index": 119,
          "lower_record_index": 40,
          "upper": {
            "tradition": "SP",
            "gear": 2,
            "role": "Flood start",
            "Cainan": 1,
            "Terah60": 1,
            "full430": 1,
            "center": 3298,
            "base_native_Cainan": 0,
            "base_center": 3108
          },
          "lower": {
            "tradition": "MT",
            "gear": 1,
            "role": "Flood close",
            "Cainan": 0,
            "Terah60": 0,
            "full430": 0,
            "center": 2240,
            "base_native_Cainan": 0,
            "base_center": 2455
          },
          "role_difference": 1,
          "context_terms": [
            650,
            130,
            60,
            215,
            2
          ],
          "context_offset": 1057,
          "person_rail_correction": 0,
          "total": 1058
        },
        {
          "upper_record_index": 119,
          "lower_record_index": 349,
          "upper": {
            "tradition": "SP",
            "gear": 2,
            "role": "Flood start",
            "Cainan": 1,
            "Terah60": 1,
            "full430": 1,
            "center": 3298,
            "base_native_Cainan": 0,
            "base_center": 3108
          },
          "lower": {
            "tradition": "MT",
            "gear": 3,
            "role": "Noah death",
            "rail": null,
            "Cainan": 1,
            "Terah60": 0,
            "full430": 1,
            "center": 2240
          },
          "role_difference": 350,
          "context_terms": [
            650,
            0,
            60,
            0,
            -2
          ],
          "context_offset": 708,
          "person_rail_correction": 0,
          "total": 1058
        }
      ]
    }
  ],
  "counts": {
    "reconstructed_regular_records": 528,
    "labelled_2K_pairs": 46,
    "coordinate_2K_pairs": 26,
    "context_templates": 4,
    "sum_of_template_coordinate_counts": 27,
    "coordinate_pairs_in_multiple_templates": 1
  },
  "interpretation": "CainanOFF-normalized SP/LXX coordinates share a baseline but not a source identity. The normal form is a finite arithmetic description of the frozen register. Role differences and companion corrections are separate from context offsets. This classifies observed source pairs; no global date operator or independent historical calibration is implied."
}