rounded source parameter bridge.json

{
  "century_u": 100,
  "paired_rounded_increment_a": 25,
  "Terah_Eber_parameter_t": 60,
  "Cainan_life": 460,
  "LXX_other_difference": 450,
  "LXX_native_difference": 910,
  "SP_difference": -120,
  "lower_legs": {
    "MT": 3430,
    "LXX": 4340,
    "SP": 3310
  },
  "scope": "Uses the inherited fitted row support. Eber(u−t)+Nahor(t) cancelt in the LXX total; SP keeps−2t. This is a rounded application of an existing source dictionary, not a new historical derivation."
}