{
  "step": "C416",
  "profiles": [
    {
      "context": {
        "tradition": "SP",
        "rail": "companion",
        "gear": 3,
        "Cainan": 1,
        "Terah60": 1,
        "full430": 1
      },
      "stations": {
        "Noah birth": {
          "record_index": 383,
          "record": {
            "tradition": "SP",
            "gear": 3,
            "role": "Noah birth",
            "rail": "companion",
            "Cainan": 1,
            "Terah60": 1,
            "full430": 1,
            "center": 3899
          }
        },
        "Shem birth": {
          "record_index": 415,
          "record": {
            "tradition": "SP",
            "gear": 3,
            "role": "Shem birth",
            "rail": "companion",
            "Cainan": 1,
            "Terah60": 1,
            "full430": 1,
            "center": 3399
          }
        },
        "Noah death": {
          "record_index": 399,
          "record": {
            "tradition": "SP",
            "gear": 3,
            "role": "Noah death",
            "rail": "companion",
            "Cainan": 1,
            "Terah60": 1,
            "full430": 1,
            "center": 2949
          }
        },
        "Shem death": {
          "record_index": 431,
          "record": {
            "tradition": "SP",
            "gear": 3,
            "role": "Shem death",
            "rail": "companion",
            "Cainan": 1,
            "Terah60": 1,
            "full430": 1,
            "center": 2799
          }
        }
      }
    },
    {
      "context": {
        "tradition": "MT",
        "rail": null,
        "gear": 1,
        "Cainan": 0,
        "Terah60": 0,
        "full430": 0
      },
      "stations": {
        "Noah birth": {
          "record_index": 144,
          "record": {
            "tradition": "MT",
            "gear": 1,
            "role": "Noah birth",
            "rail": null,
            "Cainan": 0,
            "Terah60": 0,
            "full430": 0,
            "center": 2841
          }
        },
        "Shem birth": {
          "record_index": 160,
          "record": {
            "tradition": "MT",
            "gear": 1,
            "role": "Shem birth",
            "rail": null,
            "Cainan": 0,
            "Terah60": 0,
            "full430": 0,
            "center": 2341
          }
        },
        "Noah death": {
          "record_index": 152,
          "record": {
            "tradition": "MT",
            "gear": 1,
            "role": "Noah death",
            "rail": null,
            "Cainan": 0,
            "Terah60": 0,
            "full430": 0,
            "center": 1891
          }
        },
        "Shem death": {
          "record_index": 168,
          "record": {
            "tradition": "MT",
            "gear": 1,
            "role": "Shem death",
            "rail": null,
            "Cainan": 0,
            "Terah60": 0,
            "full430": 0,
            "center": 1741
          }
        }
      }
    }
  ],
  "same_role_pairs": [
    {
      "role": "Noah birth",
      "upper": 3899,
      "lower": 2841,
      "difference": 1058
    },
    {
      "role": "Shem birth",
      "upper": 3399,
      "lower": 2341,
      "difference": 1058
    },
    {
      "role": "Noah death",
      "upper": 2949,
      "lower": 1891,
      "difference": 1058
    },
    {
      "role": "Shem death",
      "upper": 2799,
      "lower": 1741,
      "difference": 1058
    }
  ],
  "preserved_intervals": [
    {
      "roles": [
        "Noah birth",
        "Shem birth"
      ],
      "upper_gap": 500,
      "lower_gap": 500
    },
    {
      "roles": [
        "Noah birth",
        "Noah death"
      ],
      "upper_gap": 950,
      "lower_gap": 950
    },
    {
      "roles": [
        "Noah birth",
        "Shem death"
      ],
      "upper_gap": 1100,
      "lower_gap": 1100
    },
    {
      "roles": [
        "Shem birth",
        "Noah death"
      ],
      "upper_gap": 450,
      "lower_gap": 450
    },
    {
      "roles": [
        "Shem birth",
        "Shem death"
      ],
      "upper_gap": 600,
      "lower_gap": 600
    },
    {
      "roles": [
        "Noah death",
        "Shem death"
      ],
      "upper_gap": 150,
      "lower_gap": 150
    }
  ],
  "source_difference_terms": {
    "SP_primary_minus_MT_same_context": 650,
    "Cainan": 130,
    "Terah": 60,
    "sojourn": 215,
    "Gear3_minus_Gear1": 4,
    "SP_person_companion": -1,
    "total": 1058
  },
  "counts": {
    "profile_contexts": 2,
    "source_stations": 8,
    "same_role_2K_pairs": 4,
    "preserved_pairwise_intervals": 6
  },
  "interpretation": "Fixed translation t→t−1058 maps all four upper person stations to the same lower context. Whole950/600 endpoint lifespans are preserved. This finite person-profile comparison is not yet a same-boundary Flood translation, unique census result, Mirror join or global chronology action."
}