{
  "step": "C339",
  "rows": [
    {
      "binding": "Noah-bound500/100",
      "Shem_gear": 2,
      "N": {
        "tradition": "SP",
        "gear": 2,
        "role": "Noah birth",
        "rail": "primary",
        "Cainan": 0,
        "Terah60": 0,
        "full430": 1,
        "center": 3708
      },
      "R": {
        "tradition": "MT",
        "gear": 3,
        "role": "Flood start",
        "Cainan": 1,
        "Terah60": 1,
        "full430": 1,
        "center": 2650,
        "base_native_Cainan": 0,
        "base_center": 2460
      },
      "H": {
        "tradition": "MT",
        "gear": 2,
        "role": "Shem birth",
        "rail": null,
        "Cainan": 0,
        "Terah60": 0,
        "full430": 1,
        "center": 2558
      },
      "F": {
        "tradition": "MT",
        "gear": 2,
        "role": "Flood start",
        "Cainan": 0,
        "Terah60": 0,
        "full430": 1,
        "center": 2458,
        "base_native_Cainan": 0,
        "base_center": 2458
      },
      "MT_base_Noah": {
        "tradition": "MT",
        "gear": 2,
        "role": "Noah birth",
        "rail": null,
        "Cainan": 0,
        "Terah60": 0,
        "full430": 1,
        "center": 3058
      },
      "widths": [
        1058,
        1150,
        1250
      ],
      "R_H_F_gaps": [
        92,
        100
      ],
      "firstE": true,
      "secondE": true,
      "doubleE": true,
      "first_step_residual": "0",
      "second_step_residual": "0"
    },
    {
      "binding": "Arphaxad-bound502/98",
      "Shem_gear": 1,
      "N": {
        "tradition": "SP",
        "gear": 2,
        "role": "Noah birth",
        "rail": "primary",
        "Cainan": 0,
        "Terah60": 0,
        "full430": 1,
        "center": 3708
      },
      "R": {
        "tradition": "MT",
        "gear": 3,
        "role": "Flood start",
        "Cainan": 1,
        "Terah60": 1,
        "full430": 1,
        "center": 2650,
        "base_native_Cainan": 0,
        "base_center": 2460
      },
      "H": {
        "tradition": "MT",
        "gear": 1,
        "role": "Shem birth",
        "rail": null,
        "Cainan": 0,
        "Terah60": 0,
        "full430": 1,
        "center": 2556
      },
      "F": {
        "tradition": "MT",
        "gear": 2,
        "role": "Flood start",
        "Cainan": 0,
        "Terah60": 0,
        "full430": 1,
        "center": 2458,
        "base_native_Cainan": 0,
        "base_center": 2458
      },
      "MT_base_Noah": {
        "tradition": "MT",
        "gear": 2,
        "role": "Noah birth",
        "rail": null,
        "Cainan": 0,
        "Terah60": 0,
        "full430": 1,
        "center": 3058
      },
      "widths": [
        1058,
        1152,
        1250
      ],
      "R_H_F_gaps": [
        94,
        98
      ],
      "firstE": false,
      "secondE": false,
      "doubleE": true,
      "first_step_residual": "-2",
      "second_step_residual": "50/23"
    }
  ],
  "control_scope": "Named G2 Noah/Flood with G2 versusG1 Shem; no Gear0 manufactured for G1.",
  "conclusion": "DoubleE1058→1250 survives both valid bindings; complete1150 intermediate requiresNoah-bound500/100 within this comparison.",
  "valid_alternative_rejected": false,
  "source_prescription_established": false
}