{"approach":"Frozen stock-entry-gate versus current best B (combine-cash): paired measurement on every seed 250000..250999; no strategy development or tuning.","tried":["Downloaded both JSON artifacts, extracted code as UTF-8 bytes without transformation, and verified both prescribed SHA-256 hashes before any simulation. Rechecked hashes after measurement.","Checked out simulator commit b244530ee2a6247b5f930830eeca9dd950da0e7e and verified tracked simulator sources were unmodified after measurement. Used default ChallengeConfig() and ParameterVariance(); asserted 2000 steps.","Timed seeds 250000..250019 first: 40 simulations, 44.668649 simulation seconds, 1.116716231 seconds/simulation, no failures. These pairs are included exactly once in the block.","Ran remaining seeds in two OS processes over disjoint ranges 250020..250509 and 250510..250999. Each process loaded both factories using load_strategy_factory(path); per seed and per strategy called run_batch(factory, base_config=ChallengeConfig(), variance=ParameterVariance(), n_simulations=1, seed_start=seed, workers=1). No CLI --workers, no sandbox, no other seeds.","Retained a record for each seed and each strategy, checked returned seed identity and failed/error status, verified exact seed coverage without duplicates, and computed candidate minus incumbent paired differences. SE is sample standard deviation (ddof=1) divided by sqrt(n); sums use math.fsum. seconds_per_simulation is mean measured call duration across all 2000 simulations, including concurrent process contention."],"next":"Combine these sufficient statistics with the other disjoint measurement blocks. This block alone does not authorize promotion; finalist seeds 900000..903999 were not run.","code_sha256":"a709c7e85c7dc5200cba83d854cc7ecc9cee8a70915ca79798504da648e9ebed","incumbent_code_sha256":"baef955ec10728839f7c3357016ec9eb0550e7ec689bbd5171b1cdd5c9e37273","tuning":null,"paired":{"seeds":[250000,250001,250002,250003,250004,250005,250006,250007,250008,250009,250010,250011,250012,250013,250014,250015,250016,250017,250018,250019,250020,250021,250022,250023,250024,250025,250026,250027,250028,250029,250030,250031,250032,250033,250034,250035,250036,250037,250038,250039,250040,250041,250042,250043,250044,250045,250046,250047,250048,250049,250050,250051,250052,250053,250054,250055,250056,250057,250058,250059,250060,250061,250062,250063,250064,250065,250066,250067,250068,250069,250070,250071,250072,250073,250074,250075,250076,250077,250078,250079,250080,250081,250082,250083,250084,250085,250086,250087,250088,250089,250090,250091,250092,250093,250094,250095,250096,250097,250098,250099,250100,250101,250102,250103,250104,250105,250106,250107,250108,250109,250110,250111,250112,250113,250114,250115,250116,250117,250118,250119,250120,250121,250122,250123,250124,250125,250126,250127,250128,250129,250130,250131,250132,250133,250134,250135,250136,250137,250138,250139,250140,250141,250142,250143,250144,250145,250146,250147,250148,250149,250150,250151,250152,250153,250154,250155,250156,250157,250158,250159,250160,250161,250162,250163,250164,250165,250166,250167,250168,250169,250170,250171,250172,250173,250174,250175,250176,250177,250178,250179,250180,250181,250182,250183,250184,250185,250186,250187,250188,250189,250190,250191,250192,250193,250194,250195,250196,250197,250198,250199,250200,250201,250202,250203,250204,250205,250206,250207,250208,250209,250210,250211,250212,250213,250214,250215,250216,250217,250218,250219,250220,250221,250222,250223,250224,250225,250226,250227,250228,250229,250230,250231,250232,250233,250234,250235,250236,250237,250238,250239,250240,250241,250242,250243,250244,250245,250246,250247,250248,250249,250250,250251,250252,250253,250254,250255,250256,250257,250258,250259,250260,250261,250262,250263,250264,250265,250266,250267,250268,250269,250270,250271,250272,250273,250274,250275,250276,250277,250278,250279,250280,250281,250282,250283,250284,250285,250286,250287,250288,250289,250290,250291,250292,250293,250294,250295,250296,250297,250298,250299,250300,250301,250302,250303,250304,250305,250306,250307,250308,250309,250310,250311,250312,250313,250314,250315,250316,250317,250318,250319,250320,250321,250322,250323,250324,250325,250326,250327,250328,250329,250330,250331,250332,250333,250334,250335,250336,250337,250338,250339,250340,250341,250342,250343,250344,250345,250346,250347,250348,250349,250350,250351,250352,250353,250354,250355,250356,250357,250358,250359,250360,250361,250362,250363,250364,250365,250366,250367,250368,250369,250370,250371,250372,250373,250374,250375,250376,250377,250378,250379,250380,250381,250382,250383,250384,250385,250386,250387,250388,250389,250390,250391,250392,250393,250394,250395,250396,250397,250398,250399,250400,250401,250402,250403,250404,250405,250406,250407,250408,250409,250410,250411,250412,250413,250414,250415,250416,250417,250418,250419,250420,250421,250422,250423,250424,250425,250426,250427,250428,250429,250430,250431,250432,250433,250434,250435,250436,250437,250438,250439,250440,250441,250442,250443,250444,250445,250446,250447,250448,250449,250450,250451,250452,250453,250454,250455,250456,250457,250458,250459,250460,250461,250462,250463,250464,250465,250466,250467,250468,250469,250470,250471,250472,250473,250474,250475,250476,250477,250478,250479,250480,250481,250482,250483,250484,250485,250486,250487,250488,250489,250490,250491,250492,250493,250494,250495,250496,250497,250498,250499,250500,250501,250502,250503,250504,250505,250506,250507,250508,250509,250510,250511,250512,250513,250514,250515,250516,250517,250518,250519,250520,250521,250522,250523,250524,250525,250526,250527,250528,250529,250530,250531,250532,250533,250534,250535,250536,250537,250538,250539,250540,250541,250542,250543,250544,250545,250546,250547,250548,250549,250550,250551,250552,250553,250554,250555,250556,250557,250558,250559,250560,250561,250562,250563,250564,250565,250566,250567,250568,250569,250570,250571,250572,250573,250574,250575,250576,250577,250578,250579,250580,250581,250582,250583,250584,250585,250586,250587,250588,250589,250590,250591,250592,250593,250594,250595,250596,250597,250598,250599,250600,250601,250602,250603,250604,250605,250606,250607,250608,250609,250610,250611,250612,250613,250614,250615,250616,250617,250618,250619,250620,250621,250622,250623,250624,250625,250626,250627,250628,250629,250630,250631,250632,250633,250634,250635,250636,250637,250638,250639,250640,250641,250642,250643,250644,250645,250646,250647,250648,250649,250650,250651,250652,250653,250654,250655,250656,250657,250658,250659,250660,250661,250662,250663,250664,250665,250666,250667,250668,250669,250670,250671,250672,250673,250674,250675,250676,250677,250678,250679,250680,250681,250682,250683,2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