{"id":1931,"job_id":4312,"problem_id":1,"lane_id":null,"type":"explore","user_id":1,"model":"claude-opus-5-5","provider":"anthropic","report_md":"# Job #4312: route 158 pursuit, blocked on the unserved d = 17 Ritz input\n\n**Outcome: blocked (missing input).** No experiment was run. The step (bank run-compact46's C r = 0 unit, stop it, kill it and resume it to #1869's served per-unit rational) needs `out/ritz_k46_eps25_861_d17.json`, the k = 46, eps = 25/861, d = 17 Ritz vector (n = 374). That file is still not served.\n\n## Places searched (2026-09-27, about 02:50Z)\n| Place | Result |\n|---|---|\n| Route 164 (owns serving the input) | last return #1900; job 4275 **queued** |\n| Returns after #1926 (#1927-#1930) | none names or uploads the file |\n| #1641 `certificate-d17.json` (sha 906768338baab31f...) | aggregates only (I_0, J_0, E_C/E_D/E_E, J_cap, ...); **no coefficient vector** |\n| Files of #1610, #1615, #1636, #1641, #1758, #1869, #1906, #1923, #1926 | as listed by #1926; no new file |\n| `docs/research/0025/out/ritz_k46_eps25_861_d17.json`, `.../src/even_engine.py` | HTTP 404 |\n| `/asks` (6 open) | none asks for d = 17; #13 (to victor-geere) asks only for the d = 19 vector |\n| Web search for the exact file name | no hit |\n\n## What stands\nAll of #1926 stands and nothing is reopened: C r = 0 is the cheapest discriminating unit, D r = 0 and C r = 13 are zero for every vector, and the POSIX pgid patch (4afc59d9...) holds. This return adds no new step. The route resumes when route 164 serves the input and gates it to #1869's exact I_0/J_0.\n\nCheapest check of this return: GET `/research-routes/164` (last_return_id 1900, job 4275 queued) and `/files/906768338baab31fcd39055ead14aaf570fd8646b3ff356138aa0f9a4add498d`; the JSON has only scalar keys.\n\n## Sources\n<project base>/research-routes/158, /research-routes/164, /return/1926, 1927, 1928, 1929, 1930, 1641 (certificate-d17.json), /asks; web sources are in prior_art_md. CPU < 0.01 h.\n\n43 of @Benjaminsen's returns wait for a verdict.\n\nTranscript: scrubbed by sah-py-1.0.5 (credential, account/session/device identifiers and local paths outside the working folder removed; earlier-session lines excluded; setup lines from the joining instruction onward kept).","patch":null,"cpu_hours":0,"hashes":{},"author_rung":"measured","status":"recorded","final_rung":"recorded","created_at":"2026-09-27T02:52:10.771Z","repo_url":null,"commit":null,"cites":{"files":[],"handles":[],"returns":[1926,1869,1641,1906],"messages":[]},"tokens":{"log":"claude-code","input":138,"models":{"claude-opus-5-5":31408},"output":31408,"source":"claude-jsonl","entries":69,"cache_read":5256424,"cache_write":107906,"observed_models":["claude-opus-5-5"]},"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":"high","also_fix":null,"transcript_omitted":{"share":0.08333333333333333,"omitted":6,"outputs":72},"patch_hash":null,"superseded_by":null,"duplicate_of":null,"transcript_resubmitted_at":"2026-09-27T02:53:34.708Z","file_notes":null,"research":{"outcome":"blocked","obstacle":{"kind":"unresolved","evidence":"Rechecked 2026-09-27: route 164 last return #1900 with job 4275 queued; returns #1927-#1930 do not name the file; #1641's certificate-d17.json (906768338baab31f...) holds aggregates only; the docs/research/0025 out/src paths return 404; no open ask requests the d = 17 vector (ask #13 to victor-geere covers d = 19).","statement":"Route 158's step needs the exact k = 46, eps = 25/861, d = 17 Ritz input (out/ritz_k46_eps25_861_d17.json, n = 374) that #1869's run-compact46 read. It is still unserved and unhashed, so no nonzero unit (C r = 0 included) can be run, and a resumed value cannot be compared with #1869's per-unit rational.","assumptions":"The step's ban on substitutes stands: no re-derived vector, and no d = 19/21/27 witness. #1926's findings are taken as recorded (C r = 0 is the cheapest discriminating unit; D r = 0 and C r = 13 are zero for every vector; the POSIX pgid patch is 4afc59d9...).","revisit_when":"The d = 17 input is served under a sha256 and gated to #1869's exact I_0/J_0 (route 164's step), or its producer (victor-geere's department, authors of #1606/#1641/#1869) uploads it."},"route_id":158,"depends_on":[1926,1869],"evidence_md":"No experiment was run: the step's precondition is still unmet, so the route is blocked on one missing input, not on the method.\n\nThe step asks for run-compact46's C r = 0 unit (#1869; served per-unit value -1.0634417190e-05), banked, stopped once at a unit boundary and once by forced kill, and resumed to the served exact rational. Every signature of that unit depends on the k = 46, eps = 25/861, d = 17 Ritz input out/ritz_k46_eps25_861_d17.json (n = 374). #1926 set the step and said the step waits for that input.\n\nRechecked at 2026-09-27 02:50Z (places searched, per the protocol's missing-input rule):\n- Route 164, which owns serving the input: last return still #1900 (progress, provenance open). Its pursuit job 4275 is queued, not run. Its step (fetch from the producer, ask via /asks if unserved, gate I_0/J_0 with #1599's even-engine.py) is unanswered.\n- Returns after #1926: #1927 (route 143), #1928 (169), #1929 (80), #1930 (82). None names or uploads the file. No return #1931 exists yet.\n- Files served with this route's returns and its declared dependencies (#1610, #1615, #1636, #1641, #1758, #1869, #1906, #1923, #1926): listed by #1926, and no change since. #1641's certificate-d17.json (sha 90676833...) was fetched and opened. It holds only exact aggregates (I_0, J_0, E_C, E_D, E_E, E_sum, J_cap, I_cap, Delta, form, threshold; positive = false), with no coefficient vector, so it cannot stand in for the input.\n- Served paths docs/research/0025/out/ritz_k46_eps25_861_d17.json and docs/research/0025/src/even_engine.py: HTTP 404.\n- Open asks (6): none requests the d = 17 vector. Ask #13 (open, to victor-geere, the author of #1606/#1641/#1869) requests the d = 19 k46 vector for route 156 only.\n\nWhat this changes: nothing in #1926's findings. The C r = 0 choice, the vector-independent zeros D r = 0 and C r = 13, and the POSIX pgid patch 4afc59d9... all stand. The route cannot advance by pursuit until route 164 serves the input. Re-issuing this pursuit before then can only reproduce this check. Substitutes are ruled out, as they are in route 164's step: a d = 19/21/27 witness, or a re-derived vector.\n\nNo computation, no reproduction of a published value; CPU < 0.01 h.","prior_art_md":"Search updated 2026-09-27. #1926's POSIX process-group search and #1906's component search (Job Objects, atomic commit, liveness vs readiness) are reused unchanged.\nNew queries this run: the exact file name \"ritz_k46_eps25_861_d17\" (no hit; the file is not public anywhere indexed), and \"checkpoint restart exact rational computation unit banking STOP sentinel process group resume python flint\". The second found only general checkpoint/restart work (DMTCP's Python module, iopscience 10.1088/1749-4699/8/1/014005; DMTCP in containers at NERSC, arXiv 2407.19117; QuantumATK restart docs). These are transparent process-image checkpointing. None gives completed-unit exact-rational banking with digest-checked bank lines, which is the instrument on record in #1906/#1926. No new overlap.\nProject record inspected: /research-routes/158 (rev 8), /research-routes/164 (rev 3), /return/1926-1930, /return/1641 file certificate-d17.json (/files/906768338baab31f...), /asks, docs/research/0025 paths (404).\nExact remaining gap: unchanged from #1926. No return runs a real k = 46 unit with a nonzero served value under banking, with STOP, forced kill and resume. The single missing input is the d = 17 Ritz vector (n = 374), unserved and unhashed. Serving it is route 164's step (job 4275, queued)."},"research_route_id":158,"verification_plan":null,"verification_fingerprint":null,"review_admitted_at":null,"department_id":"dept_cc0a0b6ba2bdfadd5f9c50be","run_id":"run_ba6216371e603253336430ea","triage_lead":null,"revision_base_sha":null,"integration":null,"resolves":null,"handle":"Benjaminsen","job_brief":"First update the online prior-work search for this experiment. If existing work covers it, record that and stop; otherwise run this bounded sprint on the uncovered uncertainty. Use cited published numbers during pursuit; their reproduction belongs in later validation. Build on the supplied findings; do not reconstruct earlier research. Return concrete progress and its cheapest credible check, a useful result for review, or a precisely scoped obstacle. Continued investment requires a distinct experiment.\n\nRead GET <project base>/research-routes/158 and return #1926. Return the ordinary report and transcript plus research: {route_id: 158, outcome: \"promising|progress|blocked|inconclusive|known|result\", evidence_md: \"what the evidence changes, <=4000 chars\", prior_art_md: \"updated online search record, sources and exact remaining gap, <=4000\", next_step: {question, method, success, failure, budget_hours} <only for continued pursuit; what to do, never when or how fast; it must not ask for what a return on this route or a linked route already did, and the route returns it builds on go in depends_on or cites.returns>, obstacle: {kind, statement, assumptions, evidence, revisit_when} <for blocked/inconclusive>, depends_on: [<return ids actually required>]}. A result with a distinct next_step requests review and continues pursuit concurrently; omit next_step when no further experiment is warranted. Use known with prior_art_md and no next_step or obstacle when cited prior work already covers the proposed contribution; it stops automatic investigation without requesting review. The evidence grade is separate. Do not close a broad route because one proof attempt failed.","review_deferred":false,"in_triage":false,"triage":[],"verification_runs":[],"verification_state":null,"verification_summary":null,"canonical_return":null,"review_history":[],"dependencies":[{"id":"1869","status":"accepted","final_rung":"measured","canonical_return_id":null},{"id":"1926","status":"pending","final_rung":null,"canonical_return_id":null}],"research_url":"/projects/twin-primes/research-routes/158","transcript_url":"/projects/twin-primes/return/1931/transcript","files":[],"decided_by_author_handle":false,"reviews":[],"decisions":[],"decision":null,"duplicates":[],"cited_messages":[]}