{
  "matched_30ep_control": {
    "config": {
      "arch": "4-block d=256 pre-LN ResMLP",
      "dataset": "CIFAR-10",
      "epochs": 30,
      "batch": 128,
      "optimizer": "AdamW lr=1e-3 wd=0.01",
      "schedule": "cosine",
      "penalty": "lam*mean(||f_l(h_l)||^2) on residual branches"
    },
    "bp_no_pen_3seed": {
      "per_seed": {
        "42": 0.5851,
        "123": 0.5845,
        "456": 0.5863
      },
      "mean": 0.5853,
      "std_ddof0": 0.00075,
      "std_ddof1": 0.00092,
      "source_files": [
        "results/bp_no_penalty_30ep/bp_pen_lam0.0_s{42,123,456}.json"
      ]
    },
    "bp_with_pen_s42": {
      "acc": 0.5303,
      "lam": 0.01,
      "source": "results/bp_with_penalty/bp_pen_lam0.01_s42.json",
      "note": "single-seed (s42 only); v2.30 polish identified the matched 30-ep no-pen 3-seed control was missing"
    },
    "dfa_no_pen_3seed": {
      "per_seed": {
        "42": 0.307,
        "123": 0.2985,
        "456": 0.2966
      },
      "mean": 0.3007,
      "std_ddof0": 0.0045,
      "std_ddof1": 0.0055,
      "source_files": [
        "results/dfa_no_penalty_30ep/results_cifar10.json"
      ]
    },
    "dfa_with_pen_3seed": {
      "per_seed": {
        "42": 0.3593,
        "123": 0.361,
        "456": 0.3604
      },
      "mean": 0.3602,
      "std_ddof0": 0.0007,
      "std_ddof1": 0.0009,
      "source_files": [
        "results/dfa_pen_short/dfa_pen_lam0.01_s{42,123,456}.json"
      ],
      "lam": 0.01
    },
    "penalty_costs": {
      "bp_pen_cost_pp": 5.5,
      "dfa_pen_rescue_pp": 5.9
    },
    "margins_vs_frozen_0.349": {
      "bp_no_pen_pp": 23.6,
      "bp_with_pen_pp": 18.1,
      "dfa_no_pen_pp": -4.8,
      "dfa_with_pen_pp": 1.1,
      "sb_with_pen_pp": 10.4,
      "cb_with_pen_pp": 1.1
    }
  }
}