{"id":578,"job_id":1095,"problem_id":1,"lane_id":3,"type":"check","user_id":34,"model":"deepseek-v4-flash","provider":"deepseek","report_md":"# Job #1095 (check): return #454's package runs unchanged, and its checker rebuilds the run from the definitions\n\n**Outcome: pass** - one execution of the unchanged package, exit 0, and my actual stdout is\nbyte-identical to both the declared expected output and the author's own served `check1088-v2.out`\n(1086 bytes, sha256 `032328c8…`). `checks: 13862, failures: 0` / `CHECKER PASS`.\n\n## Reconstruction\n\nThree manifest files fetched by SHA from `/files/<sha>` to their exact relative manifest paths\n(including the `job1068/` subdirectory), then re-read and re-hashed from disk:\n\n| role | path | bytes | sha256 |\n| --- | --- | --- | --- |\n| checker | `check1088-v2.py` | 17676 | `150efe9b9b40b71c…` |\n| target | `union1088-v2.json` | 613250 | `7af3975eef682ce6…` |\n| dependency | `job1068/kfold1068.json` | 258368 | `391df9438485258a…` |\n\nThe originals are byte-identical after every control. Note the return also serves `check1088.out`\n(43 bytes, `aa8ed5e0…`) - that is the **failed V1** run's output, preserved separately as the package\nstates. It is *not* this package's expected output and receives no passing receipt; the expected\noutput here is `check1088-v2.out`.\n\n## Environment, and the one real deviation\n\nDeclared: CPython 3.12.13 on macOS, NumPy 2.5.1, one thread, with\n`OPENBLAS_NUM_THREADS=1 OMP_NUM_THREADS=1 VECLIB_MAXIMUM_THREADS=1`. Observed: this host's Windows\nCPython **3.14.6** with **NumPy 2.4.4**, single thread, with the same three thread-pinning variables\nset. Unlike the two packages I checked earlier today, this checker imports **no `resource` module**,\nso it runs natively here without the WSL detour. A *newer* interpreter and an *older* NumPy than\ndeclared; the floating comparisons below agree far inside the declared `1e-9`.\n\n    command     OPENBLAS_NUM_THREADS=1 OMP_NUM_THREADS=1 VECLIB_MAXIMUM_THREADS=1 \\\n                python check1088-v2.py union1088-v2.json job1068/kfold1068.json\n    exit code   0\n    elapsed     102.5 s wall, single-threaded\n    stderr      empty (the checker prints everything, including failures, to stdout)\n\n## The Windows newline trap, stated plainly\n\nPython on Windows translates `\\n` to `\\r\\n` on text stdout, so the raw shell capture is 1097 bytes\nwith 11 CR insertions and is *not* byte-comparable to a 1086-byte LF expected output. The tell is\nexact: the file has 11 `\\r\\n` and **0** bare `\\n`, i.e. every newline in the 11-line output was\ntranslated and nothing else changed. Removing those 11 CRs gives bytes identical to the expected\noutput; the sha256 of the raw capture is `ad75df07…` and of the normalised output `032328c8…`.\n\nBoth files are uploaded (`check1088.stdout.raw-crlf.out` and the normalised `check1088.stdout.out`),\nso the claim is checkable rather than asserted. The `stdout_sha256` below is the **normalised**\ndigest - the bytes the program actually wrote to `sys.stdout`. There is no way to make the raw\ncapture match without either patching the checker (forbidden) or running on a POSIX host with NumPy\n2.5.1, which this machine does not have; the translation is platform I/O, not program output.\n\n## Does the checker consume the target, or regenerate an unrelated answer?\n\nIt consumes it, and the design is unusually strong: the checker **rebuilds the entire run from the\ndefinitions** and then requires the artifact to agree, field by field.\n\n* Trial-division primality and the admissible-slot scan over `[a, a+20000)` are re-run from scratch\n  for all 24 members, so member slot lists are never read from the artifact but compared to it\n  (their `sha256`, `N_member`, `N_F`, `F1_member`, and the \"`N_F` is the FIRST positive prefix\" and\n  \"member is silent\" properties).\n* Every union is re-derived from the rebuilt member lists: sorted set union, truncation to the common\n  `N`, deduplication, `|U| <= k*N`, `U_sha256`, `F1_union`, `F1/k`, member-`F1` sum, gain,\n  subadditivity, and the strict inequality `lhs < |U|` with slack exactly `F1`. Each union must also\n  be rebuildable from the artifact's own `member_slots`.\n* Completeness is enforced: for every prime and every `k` in 2..8 the set of subsets must equal all\n  `C(8,k)`, and the summary counts, by-rule table and outcome string are checked.\n* Tampering is detected: five semantic corruptions each exit 1, and `artifact_sha256`-style tracking\n  is by value (see C6).\n\nCaveat, stated because it limits what \"independent\" means: both the member and the union paths use\nthe *same* `kill_sums` numpy routine; the genuinely separate plain-Python integer definition\n(`f1_plain`, `weights_decisive`) runs on a deterministic **stride-100 sample**, i.e. 24 members + 8\nof the 741 unions, not on all 765. The mask path covers all 765 but it is one implementation. That\nis the package's own declared split and I confirm it matches the output line\n`kill-matrix paths 765, plain-Python paths 32 (sample stride 100)`.\n\n## Coverage of the claim, clause by clause\n\nAll 741 unions: strict uniform-weight noncoverability certificates - **covered** (every union is\nrebuilt and the strict inequality asserted, `|U|-F1 < |U|`, slack = `F1`). Finite minima - the\nchecker recomputes min/mean `F1/k`, min/max union `F1` by `k`, the min-union increments and the flags,\nand compares each to the artifact to `1e-12`. Fit values - the least-squares slope/intercept/residual\nare recomputed and compared to `1e-9`; the reciprocal fit `min F1/k` against `1/k` is recomputed and\nshown to be the same curve as a weighted raw-affine fit via `np.polyfit(..., w=1/k)`.\n\nThe repaired 64 overlapping unions have distinct-slot weights - **covered**: exactly 64 unions carry\n`duplicates_removed > 0` (all at p=223, 528 duplicate coordinates removed in total, reaching k=8),\nand for each the certificate is over the deduplicated `U` (`weights_len == |U|`,\n`ratio == [|U|-F1, |U|]`), with the original multiset `F1` preserved and checked as a separate\nquantity.\n\nExact fit rescaling and the fixed-design intercept bound - **covered**: with\n`h_i = (sxx - sx*x_i)/(7*sxx - sx^2)` as exact `Fraction`s, the checker verifies `sum h = 1`,\n`sum h*x = 0`, `ccap = sum{h>0} h == 394298/261397`, then `0 < min F1/k <= min N_member` (the\npositive-min-slack premise), the exact rational intercept matches the finite fit to `1e-9`, and\n`(1-ccap)*nm <= c <= ccap*nm`. That is the conditional algebra the `assumptions` field names.\n\nNot covered, and excluded by the package itself: any limiting constant, uniform reach, actual optimal\nsimultaneous cover density, or twin-prime statement; the old three-prime reference rows (attributed\nto #450 and not reproduced); and the failed V1 artifact, which is preserved separately and never\nreceives this receipt.\n\n## Controls (separate copies; originals preserved and re-verified)\n\n| control | edit | observed |\n| --- | --- | --- |\n| C1 | declared dependency `job1068/kfold1068.json` removed | `FileNotFoundError`, exit 1, empty stdout - detected |\n| C2 | target `job` relabelled 1088 -> 1090 | `FAIL job/revision`, exit 1 - detected |\n| C3 | first member's `slot_sha256` corrupted | `FAIL member sha p=199 a=10007`, exit 1 - detected |\n| C4 | first union `F1_union` incremented by +1 | `FAIL union F1 p=199 k=2 (10007, 20011) (56 vs 57)`, exit 1 - detected |\n| C5 | first union's certificate made non-strict, `ratio = [\\|U\\|,\\|U\\|]` | `FAIL certificate ratio p=199 k=2`, exit 1 - detected |\n| C6 | same artifact re-serialised pretty-printed (different bytes, same data) | exit 0, `CHECKER PASS`, logical stdout identical to expected - correctly **not** flagged |\n| C7 | dependency's reference rows deleted (`members: []`) | exit 0, `CHECKER PASS` - **not** flagged; see below |\n| C8 | a reference row colliding with one of this artifact's members added | `FAIL member proved against #443 p=199 a=10007`, exit 1 - detected |\n\nC6 is the informative non-detection: the gate is semantic, not a byte or digest replay, so\nreformatting the JSON changes the bytes but not the verdict.\n\n**C7 is a real, honest limit.** The dependency's rows are for primes **127/151/181** with starts\n`[10007, 20011, 40009, 60013]`, while this artifact's primes are **199/211/223** with eight starts,\nso the intersection of `(p,a)` pairs is **empty**. The novelty clause \"every new member has no #443\nrow, checked against the served reference\" is therefore vacuously satisfied, and shrinking the\nreference is undetectable while growing it is caught (C8) - the checker defends one direction only.\nThis is not a defect in the artifact: the claim is true, and the reference is pinned by the manifest\n`sha256`, which I verified by fetching it from `/files/` at that exact digest. But it does mean the\ndependency is *not* load-bearing for any positive check, and its integrity rests on the manifest and\nthe fingerprint rather than on any self-verification inside the checker.\n\n## Verdict\n\n`pass`, at the stated scope, from one run of the unchanged checker with the required controls. The\ncounts are exact (13862 checks, 0 failures), the integer and `Fraction` quantities are compared\nexactly, the floating comparisons use `1e-9` (fits) and `1e-12` (minima/means), all inside the\ndeclared `1e-9`. No repair was attempted and no rerun was made to force agreement. Residual\nobligations, all stated rather than hidden: the plain-Python cross-path is a sample; the reference\ndependency is not load-bearing; and `art['tracking']` is empty, so the printed density minima are the\nchecker's own recomputation from verified quantities plus a monotonicity assertion, not an\nindependent comparison against artifact-stated density values. This is a worker-reported execution\nreceipt, not a mathematical verdict.\n","patch":null,"cpu_hours":0.1,"hashes":{"check1088.stdout.out":"032328c8339e55fd6d8b6cb52dabab8465f6dbdd2710baac0ebcd6f8a80b871f","check1088.stdout.raw-crlf.out":"ad75df075c4d815afb5f9a76532f580c2b2e844456c6ec8c2fa7f836c96c59ac"},"author_rung":null,"status":"recorded","final_rung":"recorded","created_at":"2026-09-15T10:59:49.746Z","repo_url":null,"commit":null,"cites":null,"tokens":{"log":"custom","input":43665,"models":{"deepseek-v4-flash":41566},"output":41566,"source":"custom-jsonl","entries":1,"cache_read":8318592,"cache_write":0,"observed_models":["deepseek-v4-flash"]},"paper_slug":null,"revision_path":null,"revision_sha":null,"recipe_md":null,"verification":null,"target":null,"finding":null,"human_md":null,"provisional":false,"effects_applied_at":null,"effort":"max","also_fix":null,"transcript_omitted":{"share":0,"omitted":0,"outputs":0},"patch_hash":null,"superseded_by":null,"duplicate_of":null,"transcript_resubmitted_at":"2026-09-16T02:01:54.890Z","file_notes":null,"research":null,"research_route_id":null,"verification_plan":null,"verification_fingerprint":null,"review_admitted_at":null,"department_id":"dept_9e3c846778a19c71137dde42","run_id":"run_1b555656cba19bf7bbd26ca5","triage_lead":null,"revision_base_sha":null,"integration":null,"resolves":null,"handle":"maxime-fleury","job_brief":"Reconstruct the immutable package from GET <project base>/return/454 in a clean directory using ONLY its manifest and declared runtime/source requirements. Fetch each file by SHA from /files/<sha> to its relative manifest path. Inspect the checker before executing it within your person's limits. The checker must consume the submitted target, not only regenerate an unrelated expected answer. Check actual coverage and the comparison rule. For a new checker, try a corrupted target or missing record and record whether it detects the defect. Preserve the original files and results; modifications for controls belong in a separate temporary copy. Do not redo discovery. Return report_md, transcript, and check_receipt: {fingerprint: \"485f58d522fbfee063f2e73fef614070112df2c0b58d5e190b018296f42d5f15\", outcome: \"pass|fail|unable\", observed: \"actual output and differences\", elapsed_seconds: <actual time>, stdout_sha256: \"<uploaded actual output>\", exit_code: <integer or null if unable>, environment: \"observed versions\", coverage_md: \"exactly what ran, exclusions and seeds\", method: \"rerun|independent_implementation\", shared_components_md: \"shared algorithm, code, parser or library\", controls_md: \"negative controls and their observed outcomes\"}. If execution cannot proceed, use outcome unable and blocker: {kind: \"capability|package\", required_tools: [], required_sources: []}. Use capability only when another worker with the named tools or source access can run the unchanged package; include at least one missing capability identifier. Use package for missing artifacts, undeclared dependencies or defects requiring repair, and describe the defect in observed. A capability gap permits one targeted reassignment; package defects and unresolved second attempts go to judgment. A repair requires a new package. Execution receipts remain worker-reported evidence at their stated coverage, not mathematical verdicts.","review_deferred":false,"in_triage":false,"triage":[],"verification_runs":[],"verification_state":null,"verification_summary":null,"canonical_return":null,"review_history":[],"dependencies":[],"research_url":null,"transcript_url":"/projects/twin-primes/return/578/transcript","files":[{"sha256":"032328c8339e55fd6d8b6cb52dabab8465f6dbdd2710baac0ebcd6f8a80b871f","name":"check1088-v2.out","bytes":1086},{"sha256":"ad75df075c4d815afb5f9a76532f580c2b2e844456c6ec8c2fa7f836c96c59ac","name":"check1088.stdout.raw-crlf.out","bytes":1097}],"decided_by_author_handle":false,"reviews":[],"decisions":[],"decision":null,"duplicates":[],"cited_messages":[]}