{ "item": "b", "batch": "e08-public-measure", "blocked": null, "RS2": { "sha256": "f24b6ca198b744c380842c3a17964a6dc21f311bb04984b26733afa3fee8eaf2", "source": "https://api.imdnotdead.fun/artifacts/19f2ec857df536e8ab62ab1da89ec6623332521ce46849f15bccff402c63e1e5", "contract_name": "censored_10", "mean_edge_901000_901255": 533.7351592392916, "mean_edge_900000_900031": 542.3651755555325, "gas_901000_901255": { "afterSwap_max_ok": 202386, "afterInitialize_max_ok": 243099, "afterSwap_calls": 2678625, "oog": 0, "revert": 0, "other_halt": 0, "tx_error": 0, "bad_return": 0 } }, "harness": { "source": "harness_source of https://api.imdnotdead.fun/artifacts/33f54e81f3372088e9eced52c0174f310ac348af98ef5727b73785c088679194", "usage": "python harness.py --start S --n N --out X.json candidate.sol RS2.sol, run unchanged from the amm-challenge checkout at 6b6921f8d463314aa7c96234e1be25a25245f704; each strategy alone vs VanillaStrategy, run_batch(...,8), gas_stats() per 20-seed chunk" }, "files": [ { "owner": "0xniki", "repository": "github.com/0xniki/amm-challenge", "default_branch": "master", "commit": "56ca9d16f1099b42ee498e3af7651187b1971819", "path": "my_strategy.sol", "raw_url": "https://raw.githubusercontent.com/0xniki/amm-challenge/56ca9d16f1099b42ee498e3af7651187b1971819/my_strategy.sol", "contract_name": "L9", "sha256": "74229c6535524db0bccc1116edd36e0952eb1ddb2acb4a25ec3da3f15e4806d9", "valid": true, "licence": { "repository_LICENSE_file": null, "github_api_license": null, "spdx": "MIT" }, "d32": { "seeds": "900000..900031", "n": 32, "mean_diff_vs_RS2": -3.5852710914576775, "se": 0.34382828159383644, "retail_edge_delta": -5.357430039461626, "arb_edge_delta": 1.7721589480039488 }, "oog": 0, "gas_d32": { "afterSwap_max_ok": 137388, "afterInitialize_max_ok": 185532, "afterSwap_calls": 321763, "oog": 0, "revert": 0, "other_halt": 0, "tx_error": 0, "bad_return": 0 } }, { "owner": "lumen-dev-a11y", "repository": "github.com/lumen-dev-a11y/amm-challenge-lab", "default_branch": "main", "commit": "4eae7bd93693b415d06adabb66d8db1e1975ab0b", "path": "amm-challenge/my_strategy.sol", "raw_url": "https://raw.githubusercontent.com/lumen-dev-a11y/amm-challenge-lab/4eae7bd93693b415d06adabb66d8db1e1975ab0b/amm-challenge/my_strategy.sol", "contract_name": "night_7", "sha256": "cc30bc7bceaf5afff5371f81bb4bcac1a8e50706a19eccd21ffff94642f1fcde", "valid": true, "licence": { "repository_LICENSE_file": null, "github_api_license": null, "spdx": "MIT" }, "d32": { "seeds": "900000..900031", "n": 32, "mean_diff_vs_RS2": -2.873680938946979, "se": 0.2411596489177768, "retail_edge_delta": -1.1351210940797518, "arb_edge_delta": -1.7385598448672293 }, "oog": 0, "gas_d32": { "afterSwap_max_ok": 137461, "afterInitialize_max_ok": 185532, "afterSwap_calls": 331879, "oog": 0, "revert": 0, "other_halt": 0, "tx_error": 0, "bad_return": 0 } }, { "owner": "ylintern", "repository": "github.com/ylintern/ammchallenge", "default_branch": "main", "commit": "52875e202d743b54049844c5833f97f27b3f2330", "path": "Strategy.sol", "raw_url": "https://raw.githubusercontent.com/ylintern/ammchallenge/52875e202d743b54049844c5833f97f27b3f2330/Strategy.sol", "contract_name": "taMole_Reverso_milli", "sha256": "d6e7ab50ede8f5b8aadbfd69a8f966fb6a7bc50dbb57194c081a3233488d1ae7", "valid": true, "licence": { "repository_LICENSE_file": null, "github_api_license": null, "spdx": "MIT" }, "d32": { "seeds": "900000..900031", "n": 32, "mean_diff_vs_RS2": -2.863071084337845, "se": 0.24070051467906212, "retail_edge_delta": -1.943644381635922, "arb_edge_delta": -0.9194267027019157 }, "oog": 0, "gas_d32": { "afterSwap_max_ok": 127842, "afterInitialize_max_ok": 185532, "afterSwap_calls": 329802, "oog": 0, "revert": 0, "other_halt": 0, "tx_error": 0, "bad_return": 0 } }, { "owner": "happybigmtn", "repository": "github.com/happybigmtn/ammchallenge-lab", "default_branch": "main", "commit": "d354d0f32f3ec06ec926ae07165e363996eb37bf", "path": "amm_submissions/Strategy.sol", "raw_url": "https://raw.githubusercontent.com/happybigmtn/ammchallenge-lab/d354d0f32f3ec06ec926ae07165e363996eb37bf/amm_submissions/Strategy.sol", "contract_name": "PHatSkewPostSpotToxOnlyV4", "sha256": "536d17d72770abfc256708571d34c44919f19215916c0f4a21865c1df7e7011b", "valid": true, "licence": { "repository_LICENSE_file": null, "github_api_license": null, "spdx": "MIT" }, "d32": { "seeds": "900000..900031", "n": 32, "mean_diff_vs_RS2": -20.137238918234623, "se": 1.43842863045823, "retail_edge_delta": -1.190186781233317, "arb_edge_delta": -18.947052137001293 }, "oog": 0, "gas_d32": { "afterSwap_max_ok": 65587, "afterInitialize_max_ok": 112855, "afterSwap_calls": 350280, "oog": 0, "revert": 0, "other_halt": 0, "tx_error": 0, "bad_return": 0 } }, { "owner": "happybigmtn", "repository": "github.com/happybigmtn/ammchallenge-lab", "default_branch": "main", "commit": "d354d0f32f3ec06ec926ae07165e363996eb37bf", "path": "amm_submissions/Strategy_best_494.sol", "raw_url": "https://raw.githubusercontent.com/happybigmtn/ammchallenge-lab/d354d0f32f3ec06ec926ae07165e363996eb37bf/amm_submissions/Strategy_best_494.sol", "contract_name": "PHatSkewBandInvFracV1", "sha256": "3336170920c2b452df304e76fb945421c77bd72e4c406fb14cbb4d590f61da17", "valid": true, "licence": { "repository_LICENSE_file": null, "github_api_license": null, "spdx": "MIT" }, "d32": { "seeds": "900000..900031", "n": 32, "mean_diff_vs_RS2": -32.8513132380175, "se": 1.870185781453661, "retail_edge_delta": 3.211540901997587, "arb_edge_delta": -36.06285414001508 }, "oog": 0, "gas_d32": { "afterSwap_max_ok": 85580, "afterInitialize_max_ok": 112748, "afterSwap_calls": 354406, "oog": 0, "revert": 0, "other_halt": 0, "tx_error": 0, "bad_return": 0 } }, { "owner": "dipankar", "repository": "github.com/dipankar/amm-challenge", "default_branch": "main", "commit": "c588ae6c47fc9af2063c9bb1f2efbeb0dd276dab", "path": "contracts/src/SigmaAdaptiveStrategy.sol", "raw_url": "https://raw.githubusercontent.com/dipankar/amm-challenge/c588ae6c47fc9af2063c9bb1f2efbeb0dd276dab/contracts/src/SigmaAdaptiveStrategy.sol", "contract_name": "SigmaAdaptive", "sha256": "84da373d4ecc47b5ecaa96adfcc432ad62825a0c608e7529404fa8a0184cdf90", "valid": true, "licence": { "repository_LICENSE_file": null, "github_api_license": null, "spdx": "MIT" }, "d32": { "seeds": "900000..900031", "n": 32, "mean_diff_vs_RS2": -8.01644894093358, "se": 0.515870965236206, "retail_edge_delta": -0.6837090177994352, "arb_edge_delta": -7.332739923134136 }, "oog": 0, "gas_d32": { "afterSwap_max_ok": 148213, "afterInitialize_max_ok": 176674, "afterSwap_calls": 336304, "oog": 0, "revert": 0, "other_halt": 0, "tx_error": 0, "bad_return": 0 } } ], "top3": [ { "owner": "ylintern", "path": "Strategy.sol", "sha256": "d6e7ab50ede8f5b8aadbfd69a8f966fb6a7bc50dbb57194c081a3233488d1ae7", "seeds": "901000..901255", "paired": { "n": 256, "mean_diff": -2.7567846700227694, "se": 0.0783656509448794, "worst": [ { "seed": 901156, "d": -9.459851141519607 }, { "seed": 901180, "d": -8.157706796166167 }, { "seed": 901133, "d": -5.558648385104675 }, { "seed": 901048, "d": -5.525322348238774 }, { "seed": 901033, "d": -5.285546121171365 } ] }, "retail_edge_delta": { "mean": -1.7030343312802247, "se": 0.0896314473012481 }, "arb_edge_delta": { "mean": -1.053750338742548, "se": 0.046022740791515075 }, "reconciliation_max_abs": 1.0658141036401503e-13, "gas": { "max_ok": 146978, "oog": 0, "detail": { "afterSwap_max_ok": 146978, "afterInitialize_max_ok": 185532, "afterSwap_calls": 2638491, "oog": 0, "revert": 0, "other_halt": 0, "tx_error": 0, "bad_return": 0 } }, "harness_valid": true, "mechanism": "Same STACK-family estimator/fee skeleton as RS2 (pHat with sigma-gated EMA, sigma/lambda/size/tox/activity EMAs, directional skew, stale-price shift, trade-aligned boost, tail compression) plus a cubic toxicity term, but with different constants (BASE_FEE 3 bps, TAIL_KNEE 500 bps, TAIL_SLOPE_PROTECT 0.875, GATE_SIGMA_MULT 10). It lacks everything RS2 adds: the silence-based no-trade-interval pHat recentering, the censored assumed-density posterior (fastHat) blended into the stale reference, the arb-probability-weighted retail rate/size flow estimator, the interior-routing pHat correction, and RS2's 30/36 bps caps on the attracting side and 16 bps cap on non-first boosts." }, { "owner": "lumen-dev-a11y", "path": "amm-challenge/my_strategy.sol", "sha256": "cc30bc7bceaf5afff5371f81bb4bcac1a8e50706a19eccd21ffff94642f1fcde", "seeds": "901000..901255", "paired": { "n": 256, "mean_diff": -2.7201504047353886, "se": 0.07579663996274326, "worst": [ { "seed": 901156, "d": -8.917681546263339 }, { "seed": 901180, "d": -8.380094279656305 }, { "seed": 901048, "d": -5.73382642851152 }, { "seed": 901033, "d": -5.414684835841854 }, { "seed": 901034, "d": -5.315275729673999 } ] }, "retail_edge_delta": { "mean": -0.8755996418930099, "se": 0.0842193220327563 }, "arb_edge_delta": { "mean": -1.8445507628423805, "se": 0.04311941841632644 }, "reconciliation_max_abs": 1.0658141036401503e-13, "gas": { "max_ok": 151967, "oog": 0, "detail": { "afterSwap_max_ok": 151967, "afterInitialize_max_ok": 185532, "afterSwap_calls": 2655261, "oog": 0, "revert": 0, "other_halt": 0, "tx_error": 0, "bad_return": 0 } }, "harness_valid": true, "mechanism": "Same STACK-family skeleton with cubic toxicity as ylintern (nearly identical constants), with one structural difference: a two-regime base fee, 3 bps when sigmaHat > 0.0011 and 1 bps otherwise. Like the others it omits RS2's censored posterior, silence recentering, arb-weighted flow estimator and attracting-side 30/36 bps caps; its arb loss vs RS2 is the largest of the three (-1.84) while retail loss is smallest (-0.88)." }, { "owner": "0xniki", "path": "my_strategy.sol", "sha256": "74229c6535524db0bccc1116edd36e0952eb1ddb2acb4a25ec3da3f15e4806d9", "seeds": "901000..901255", "paired": { "n": 256, "mean_diff": -3.2223675578419018, "se": 0.10170860181011195, "worst": [ { "seed": 901180, "d": -12.650563812459154 }, { "seed": 901133, "d": -10.15245419323719 }, { "seed": 901156, "d": -9.400196168453476 }, { "seed": 901112, "d": -8.185714482026583 }, { "seed": 901064, "d": -8.048719584332162 } ] }, "retail_edge_delta": { "mean": -4.860746499002094, "se": 0.12760507174644636 }, "arb_edge_delta": { "mean": 1.6383789411601908, "se": 0.06279941229170273 }, "reconciliation_max_abs": 1.0302869668521453e-13, "gas": { "max_ok": 147040, "oog": 0, "detail": { "afterSwap_max_ok": 147040, "afterInitialize_max_ok": 185532, "afterSwap_calls": 2577611, "oog": 0, "revert": 0, "other_halt": 0, "tx_error": 0, "bad_return": 0 } }, "harness_valid": true, "mechanism": "Same STACK-family skeleton with cubic toxicity (TOX_CUBE_COEF 15000 bps, STALE_DIR_COEF 7000 bps, GATE_MIN 0.025, PHAT_ALPHA_RETAIL 0.04) and no RS2 posterior/flow/silence/cap additions. It gives up less to arbitrage than RS2 (arb delta +1.64) but loses far more retail edge (-4.86), consistent with fees set too high for retail flow." } ], "notes": [ "All six files compile and pass amm-match validate unchanged; each file sha256 equals the sha256 of the raw.githubusercontent.com bytes at the recorded commit.", "None of the five repositories has a LICENSE/COPYING file anywhere in the tree (find at the default-branch commit), and the GitHub API reports license null for all five; every file carries only an \"SPDX-License-Identifier: MIT\" line. Reuse rests on that SPDX line alone.", "No file beats RS2. On 32 seeds: ylintern -2.86, lumen -2.87, 0xniki -3.59, dipankar -8.02, happybigmtn Strategy.sol -20.14, Strategy_best_494.sol -32.85. On 256 seeds the best three stay 2.7 to 3.2 behind RS2 with se under 0.11.", "The top three are all members of the same STACK fee family (pHat/sigma/lambda/size/tox EMAs, skew, stale shift, tail compression) with a cubic toxicity term; none contains a new mechanism RS2 lacks except lumen's sigma-regime base fee (1 vs 3 bps). Their combined deficit is roughly the value of RS2's additions (censored posterior, silence recentering, arb-weighted flow estimator, attracting-side caps).", "Zero OOG, revert, halt, tx_error or bad_return for every candidate and for RS2 in every run. RS2 afterSwap peaks at 202386 gas on 901000..901255 (limit 250000); its afterInitialize peaks at 243099.", "Per the brief, 900000..900031 and 901000..901255 are the only seeds used; nothing was tuned, and no code from the five repositories was run apart from compiling and simulating the six named files." ] }