{
  "step": "C394",
  "rows": [
    {
      "Noah_pivot": 3706,
      "Noah_pivot_records": [
        {
          "tradition": "SP",
          "gear": 1,
          "role": "Noah birth",
          "rail": "primary",
          "Cainan": 0,
          "Terah60": 0,
          "full430": 1,
          "center": 3706
        },
        {
          "tradition": "LXX",
          "gear": 1,
          "role": "Noah birth",
          "rail": null,
          "Cainan": 0,
          "Terah60": 0,
          "full430": 1,
          "center": 3706
        }
      ],
      "E_input": 3683,
      "E_output": 3681,
      "input_source_records": [
        {
          "tradition": "SP",
          "gear": 2,
          "role": "Noah birth",
          "rail": "primary",
          "Cainan": 1,
          "Terah60": 1,
          "full430": 0,
          "center": 3683
        },
        {
          "tradition": "LXX",
          "gear": 2,
          "role": "Noah birth",
          "rail": null,
          "Cainan": 1,
          "Terah60": 1,
          "full430": 0,
          "center": 3683
        }
      ],
      "output_source_records": [
        {
          "tradition": "SP",
          "gear": 1,
          "role": "Noah birth",
          "rail": "primary",
          "Cainan": 1,
          "Terah60": 1,
          "full430": 0,
          "center": 3681
        },
        {
          "tradition": "LXX",
          "gear": 1,
          "role": "Noah birth",
          "rail": null,
          "Cainan": 1,
          "Terah60": 1,
          "full430": 0,
          "center": 3681
        }
      ],
      "pivot_tests": [
        {
          "orientation": "forward_E",
          "operator": "P",
          "input": 3683,
          "output": 3681,
          "gain": -2,
          "unique_required_pivot": 3821,
          "source_record_indices": [],
          "source_records": []
        },
        {
          "orientation": "forward_E",
          "operator": "J",
          "input": 3683,
          "output": 3681,
          "gain": -2,
          "unique_required_pivot": 4281,
          "source_record_indices": [],
          "source_records": []
        },
        {
          "orientation": "reverse_E",
          "operator": "P",
          "input": 3681,
          "output": 3683,
          "gain": 2,
          "unique_required_pivot": 3543,
          "source_record_indices": [],
          "source_records": []
        },
        {
          "orientation": "reverse_E",
          "operator": "J",
          "input": 3681,
          "output": 3683,
          "gain": 2,
          "unique_required_pivot": 3083,
          "source_record_indices": [
            70,
            118
          ],
          "source_records": [
            {
              "tradition": "LXX",
              "gear": 2,
              "role": "Flood start",
              "Cainan": 1,
              "Terah60": 1,
              "full430": 0,
              "center": 3083,
              "base_native_Cainan": 1,
              "base_center": 3238
            },
            {
              "tradition": "SP",
              "gear": 2,
              "role": "Flood start",
              "Cainan": 1,
              "Terah60": 1,
              "full430": 0,
              "center": 3083,
              "base_native_Cainan": 0,
              "base_center": 3108
            }
          ]
        }
      ],
      "return_J_pivot": 3083,
      "source_endpoint_loop": [
        3683,
        3681,
        3683
      ]
    },
    {
      "Noah_pivot": 3708,
      "Noah_pivot_records": [
        {
          "tradition": "SP",
          "gear": 2,
          "role": "Noah birth",
          "rail": "primary",
          "Cainan": 0,
          "Terah60": 0,
          "full430": 1,
          "center": 3708
        },
        {
          "tradition": "LXX",
          "gear": 2,
          "role": "Noah birth",
          "rail": null,
          "Cainan": 0,
          "Terah60": 0,
          "full430": 1,
          "center": 3708
        }
      ],
      "E_input": 3685,
      "E_output": 3683,
      "input_source_records": [
        {
          "tradition": "SP",
          "gear": 3,
          "role": "Noah birth",
          "rail": "primary",
          "Cainan": 1,
          "Terah60": 1,
          "full430": 0,
          "center": 3685
        },
        {
          "tradition": "LXX",
          "gear": 3,
          "role": "Noah birth",
          "rail": null,
          "Cainan": 1,
          "Terah60": 1,
          "full430": 0,
          "center": 3685
        }
      ],
      "output_source_records": [
        {
          "tradition": "SP",
          "gear": 2,
          "role": "Noah birth",
          "rail": "primary",
          "Cainan": 1,
          "Terah60": 1,
          "full430": 0,
          "center": 3683
        },
        {
          "tradition": "LXX",
          "gear": 2,
          "role": "Noah birth",
          "rail": null,
          "Cainan": 1,
          "Terah60": 1,
          "full430": 0,
          "center": 3683
        }
      ],
      "pivot_tests": [
        {
          "orientation": "forward_E",
          "operator": "P",
          "input": 3685,
          "output": 3683,
          "gain": -2,
          "unique_required_pivot": 3823,
          "source_record_indices": [],
          "source_records": []
        },
        {
          "orientation": "forward_E",
          "operator": "J",
          "input": 3685,
          "output": 3683,
          "gain": -2,
          "unique_required_pivot": 4283,
          "source_record_indices": [],
          "source_records": []
        },
        {
          "orientation": "reverse_E",
          "operator": "P",
          "input": 3683,
          "output": 3685,
          "gain": 2,
          "unique_required_pivot": 3545,
          "source_record_indices": [],
          "source_records": []
        },
        {
          "orientation": "reverse_E",
          "operator": "J",
          "input": 3683,
          "output": 3685,
          "gain": 2,
          "unique_required_pivot": 3085,
          "source_record_indices": [
            54,
            102
          ],
          "source_records": [
            {
              "tradition": "LXX",
              "gear": 3,
              "role": "Flood start",
              "Cainan": 1,
              "Terah60": 1,
              "full430": 0,
              "center": 3085,
              "base_native_Cainan": 1,
              "base_center": 3240
            },
            {
              "tradition": "SP",
              "gear": 3,
              "role": "Flood start",
              "Cainan": 1,
              "Terah60": 1,
              "full430": 0,
              "center": 3085,
              "base_native_Cainan": 0,
              "base_center": 3110
            }
          ]
        }
      ],
      "return_J_pivot": 3085,
      "source_endpoint_loop": [
        3685,
        3683,
        3685
      ]
    }
  ],
  "reflections": [
    {
      "Noah_pivot": 3706,
      "existing_corner_sum": -2639,
      "cumulative_native_Shem": -6345,
      "reflected_coordinates": {
        "held_Noah": -6345,
        "E_input": -6322,
        "E_output": -6320,
        "return_J_Flood": -5722
      },
      "only_held_pivot_sourced": true
    },
    {
      "Noah_pivot": 3708,
      "existing_corner_sum": -2635,
      "cumulative_native_Shem": -6343,
      "reflected_coordinates": {
        "held_Noah": -6343,
        "E_input": -6320,
        "E_output": -6318,
        "return_J_Flood": -5720
      },
      "only_held_pivot_sourced": true
    }
  ],
  "counts": {
    "primitive_E_edges": 2,
    "orientation_operator_trials": 8,
    "sourced_required_pivots": 2,
    "forward_P_J_realizations": 0,
    "reverse_J_realizations": 2,
    "reverse_P_realizations": 0,
    "complete_cumulative_reflections": 0
  },
  "interpretation": "The E arrow has no same-orientation P/J realization. Its reverse arrow is an existing J edge held at the next-Gear SP/LXX Flood in the edge context. This closes a two-edge source endpoint loop, but whole-map inverse/commutation has not been established. The original17K corner exchanges do not supply the cumulative endpoints or return pivot."
}