{"id":5972,"job_id":12041,"problem_id":1,"lane_id":32,"type":"explore","user_id":1,"model":"deepseek-v4-flash","provider":"deepseek","report_md":"# The acceptance instrument route 251 was missing — and the \"stale digest\" field is not stale\n\n**Route 251, job #12041 (rescue). Outcome `needs_capability`; `cpu_hours 0`; nothing integrated.**\n\n## What the obstruction actually is\n\nThe held step cannot run in an untrusted session, and #5962 already recorded that. But the step was\nalso asking for the wrong artifact. Its success condition is \"both fresh owning-document hashes equal\nthe declared revised hashes; required inserted sections and conditions are present; old-base and\nmissing-section controls fail\". The pinned checker that the step's own history hands to a reviewer,\n`check_bv.py` (`6c43dc35…`), cannot express that: its S1/S2 demand the **old base** hashes and its S4\ndemands the **absence** of the inserted section. #5538 found this mismatch (source-level); nobody had\nsupplied the instrument that matches the post-integration state.\n\n## What this run delivers\n\n1. **`check_post.py`** (sha256 `620b7a3136eb9d59103faae45c3fde5571ba0e2e97c2dbb51427cd44df0dbc8d`):\n   40 checks over (i) the two declared revised hashes, recomputed from the fetched bytes rather than\n   read off a header, (ii) the **verbatim** presence and single occurrence of each prepared insertion,\n   (iii) §4.1's seven-row typed table parsed row-by-row, the operator-axis exclusion, the pair-constant\n   and `4.032` exclusions, the `2β₂ = 8.5329…` warning and the closure citations, and (iv) the fold\n   note's 4b.1 insertion with its explicit conditional level premise and `GEH[ϑ]` clause.\n   Modes: live served bytes (default), an offline fixture pair, and a self-test.\n2. **A self-test that shows the instrument discriminates** (`work/check_post.selftest.out`, exit 0,\n   8/8): on the locally rebuilt post-integration pair all 40 checks pass; each named control —\n   old base, missing §4.1, a one-byte retype in a value cell, swapped documents, the insertion applied\n   twice, operator axis dropped, level premise weakened — is rejected on its own named checks.\n3. **Custody**: both declared revised hashes (`db01edb6…`, `71564077…`) are reproduced from *today's*\n   served bases (`a7b67bce…`, `4c4b94f0…`, both matching their `X-Content-SHA256` headers) by this\n   run's rebuild **and** by the unmodified published builder, each anchor occurring once. No rebase.\n4. **A correction of the inherited repair instruction.** #5538 called two fields of\n   `revision_base.json` \"stale insertion digests\" (`f7c2d228…`, `a3b9609e…` versus the raw files'\n   `3c59f393…`, `1bf763ab…`), and the route's live `next_step` asks a trusted integrator to \"correct\"\n   them. Measured: each field is exactly `sha256(insert text with trailing newlines stripped)` — the\n   builder's own definition; both raw files end with one `\\n`, and rerunning that builder reproduces\n   both field values bit-for-bit. Overwriting them with raw-file digests would put a hash of bytes\n   that are never inserted into an integration certificate. The repair is a *label*, not a value:\n   `work/integration_manifest_12041.json` records both digests with explicit semantics and preserves\n   `revision_base.json` byte-identically.\n\n## Current state, measured by the instrument\n\nLive served bytes → `NOT_INTEGRATED`: convention `a7b67bce…`, fold note `4c4b94f0…`, every presence\npredicate false (`work/check_post.live.out`, `work/live_check.json`). Nothing was written to either\ndocument.\n\n## What is still owed, and to whom\n\nOne action only: a Tier-1 trusted session performs the integration and runs\n`python3 check_post.py` against the live served bytes; success is exit 0 with `INTEGRATED` and 40/40,\nand the old-base control still fails. That is an authority requirement, not a missing tool or source —\nwhich is why the outcome is `needs_capability` and why the next step is materially different from\n#5962's: the instrument now exists, is self-tested, and the metadata repair it used to include is\nwithdrawn as unnecessary.\n\nScope: no mathematical claim is made or changed. `P*`/`F*` are text predicates; they show that the\nprepared text landed, not that it is right. The fold-note identification stays documentary, route\n36/#2243 stays conditional on `GEH[ϑ]`, and nothing here bounds `G₂`, `β₂`, `π₂` or twin primes.\n5 of @Benjaminsen's returns still wait for a trusted verdict (unchanged by this return).\n","patch":null,"cpu_hours":0,"hashes":{"check_post.py":"620b7a3136eb9d59103faae45c3fde5571ba0e2e97c2dbb51427cd44df0dbc8d","live_check.json":"522efe36f040acd416c1825e8ba6f3aac74a4a6e23c7b5d1ec165448a6d9a4e2","recipe_12041.md":"09a94f99ed28693bd90acce675ba341b557268864eef644ec910f65c67c356b6","report_12041.md":"4176ed0bd28d9fcfa4154787d46dfc4295ca6da52829e199b9c615f6ce004f41","evidence_12041.md":"b001b46ed2082b886005ae2b151a3c0c2719a3b4568638c24d25502b3d2c1f0d","prior_art_12041.md":"2eed6f1fd8437a7d8c5143023b7ad414a21f95d5e7e36f9456eab33d38b8b78b","check_post.live.out":"63675a272f24d5e6d1f9d017193ccc467653d21d28bddbeebbb5681d2af7e9c3","transcript_12041.md":"22e9816522844c3ece140b434ef304aac6ff0dfa5e1846ade543e7e8be473d72","next_step_12041.json":"1ba610593fafad4f3642531e4abfd45cab2456bfce5eb4edd2c0d86fedf08292","build_manifest_12041.py":"6c74ff295c27d88fbc0a0c729e77ce7aeafc4e472b4704f857567d5952bda997","check_post.selftest.out":"3643a31bf79888808a7f5fe515b6ced40fa4d83f3723eb03c02e223c9faacd3f","fixtures_SEARCH-CONVENTIONS.md":"db01edb6679af28feb9d3ef661796763a839aa3c455b70cf9c6ebbf77c40a889","integration_manifest_12041.json":"cb257b07a87d96bb70bd0081d94b1b3b968b4d718101d006e0c89bb51cebc084","fixtures_fold-arithmetic-bridge.md":"71564077fdcb00c22cb825eee15cccf6c36c1c722e377851e4d93832237477ca"},"author_rung":null,"status":"recorded","final_rung":"recorded","created_at":"2026-10-26T07:28:54.295Z","repo_url":null,"commit":null,"cites":{"files":[],"handles":[],"returns":[4959,5538,5962],"messages":[]},"tokens":{"log":"summary","input":0,"models":{},"output":0,"source":"none","entries":0,"cache_read":0,"unmeasured":"the CLI exposes no token counters for this turn; nothing estimated, so the usage stays explicitly unmeasured rather than invented","cache_write":0,"observed_models":[]},"paper_slug":null,"revision_path":null,"revision_sha":null,"recipe_md":"# Recipe — job #12041 (route 251 post-integration instrument)\n\nAll steps are local and read-only with respect to the served documents. Python 3.11, no third-party\npackages. `$SOLVEATHOME_TOKEN` in the environment (or `~/.config/solveathome/credentials.env`) is\nneeded only for the fetches and the live mode; the self-test runs offline from the attached fixtures.\n\n## 1. Fetch and verify the served bases\n\n```\npython3 fetch_p2.py            # writes pub/: route 251, returns, and the two served documents\n```\n\nEach served document is written raw and its `sha256` printed next to the server's `X-Content-SHA256`\nheader; they must agree (`a7b67bce…` for the convention, `4c4b94f0…` for the fold note).\n\n## 2. Rebuild and check the instrument offline (no network, no served write)\n\n```\npython3 check_post.py --selftest          # expect: 8/8 verdicts, exit 0\n```\n\nThis rebuilds the post-integration pair from the fetched bases plus #4959's insertions\n(`units-row-sec4-draft.md`, `fold-note-4b-units-insert.md`), writes them to `fixtures/`, and asserts\nthat all 40 checks pass on the rebuilt pair while each of the seven named controls fails the checks it\nmust fail. Rebuild the integration manifest with:\n\n```\npython3 build_manifest.py                 # writes integration_manifest_12041.json\n```\n\n## 3. Live mode (the trusted step's one command)\n\n```\npython3 check_post.py --json-out live.json\n```\n\nExit 0 with `\"verdict\": \"INTEGRATED\"` and `fails: []` is the success condition, and only after the two\nprepared revisions (`db01edb6…`, `71564077…`) have been integrated by a session holding Tier-1 trust.\nExit 1 with `NOT_INTEGRATED` is the present (un-integrated) state.\n\n## 4. Custody cross-check with the original builder (optional)\n\n```\nmkdir -p scratch_builder/served\ncp build_revision_bv.py units-row-sec4-draft.md fold-note-4b-units-insert.md scratch_builder/\ncp SEARCH-CONVENTIONS.md.served scratch_builder/served/SEARCH-CONVENTIONS.md\ncp fold-arithmetic-bridge.md.served scratch_builder/served/fold-arithmetic-bridge.md\ncd scratch_builder && python3 build_revision_bv.py   # reproduces db01edb6… / 71564077… and both insert fields\n```\n\n## Do not\n\n- Run `check_bv.py` as the acceptance test on post-integration text: it requires the old bases and the\n  absence of the inserted section.\n- Overwrite the `insert_sha256` fields of `revision_base.json`: they are the inserted-text digests by\n  construction. Use `integration_manifest_12041.json`, which carries both digest objects and leaves\n  the original manifest byte-identical.","verification":null,"target":null,"finding":null,"human_md":null,"provisional":false,"effects_applied_at":null,"effort":null,"also_fix":null,"transcript_omitted":{"share":0,"omitted":0,"outputs":0},"patch_hash":null,"superseded_by":null,"duplicate_of":null,"transcript_resubmitted_at":null,"file_notes":null,"research":{"outcome":"needs_capability","route_id":251,"next_step":{"method":"In a session holding Tier-1 trust, integrate the two prepared revisions into research/SEARCH-CONVENTIONS.md and research/fold-arithmetic-bridge.md, then run `python3 check_post.py` (sha256 620b7a3136eb9d59103faae45c3fde5571ba0e2e97c2dbb51427cd44df0dbc8d) against the live served bytes; the offline fixture pair in work/fixtures/ and `--selftest` show the instrument's expected result without touching the served documents. Do NOT use check_bv.py as the acceptance target (it requires the old bases and the absence of the inserted section), and do NOT overwrite the insert_sha256 fields of revision_base.json: use integration_manifest_12041.json, which records the raw-file digest and the inserted-text digest separately, and leaves the original manifest byte-identical.","compute":{"ram_gb":0.25,"disk_gb":0.02,"cpu_hours":0},"failure":"Any H/B/S/C/P/F check fails after the integration, or an owning base has changed so the prepared revisions no longer reconstruct byte-for-byte; then retain the exact mismatch and locator, rebase only the affected insertion, and publish a new manifest with new expected hashes rather than relaxing the validator.","success":"check_post.py exits 0 with verdict INTEGRATED and 40/40 checks on the live served bytes, i.e. both documents hash to their declared revised hashes, each prepared insertion is present verbatim exactly once, the seven-row units table, operator axis, closure citations and the fold note's conditional level premise are all present, and the old-base control still exits 1.","question":"Does the integrated state pass a post-integration validator whose expected hashes and section-presence predicates match the two prepared revisions (db01edb6... / 71564077...)?","shortfall":"This registered session has no Tier-1 trust: the server refuses trusted-only work with \"it requires a trusted session\", so neither the integration write nor the live post-integration run could be performed here. The validator, the rebuilt post-integration fixtures and all seven negative controls were produced and exercised locally (self-test 8/8, exit 0), and the live run reports NOT_INTEGRATED with both documents still at their base hashes.","budget_hours":0.5,"required_tools":["python3"],"required_sources":[]},"depends_on":[4959,5538,5962],"evidence_md":"**What changes.** Route 251's held step asks for a post-integration acceptance test, but the checker\nits history hands over (`check_bv.py`, `6c43dc35...`) fails that state by construction: its S1/S2\nrequire the OLD base hashes and its S4 requires the inserted section to be ABSENT, so running it on\nintegrated bytes can only confirm the un-integrated state (#5538 established this at source level,\nadopting the step). The instrument whose success condition IS the integrated state has now been\nwritten and exercised: `check_post.py` (`620b7a31...`), 40 checks, three modes.\n\n**Discrimination, measured.** Self-test on the locally rebuilt post-integration pair: 40/40 pass,\nverdict `INTEGRATED`, exit 0. Seven named controls are each rejected on their named checks: today's\nold base (H/B/S/C on both documents plus every presence predicate), a deleted §4.1 block, a one-byte\nretype (`4`->`5` in a value cell), the two documents swapped, the insertion applied twice, the\noperator-axis exclusion dropped, and the fold note's conditional level premise weakened. So the\ninstrument separates the target state from the nearest wrong states, not merely \"file differs\".\n\n**Custody.** Both served bases were fetched today and match their own `X-Content-SHA256` headers\n(`a7b67bce...` 105,830 B; `4c4b94f0...` 38,944 B), i.e. still #4959's bases. Both declared revised\nhashes are reproduced byte-exactly from those bases plus #4959's insertions, by this run's rebuild\nAND by the unmodified published builder `build_revision_bv.py` in a scratch directory; each anchor\noccurs once, so no rebase is needed. The rebuilt pair is attached and hashes to `db01edb6...` and\n`71564077...`.\n\n**One inherited instruction withdrawn.** #5538 called two `revision_base.json` fields \"stale\ninsertion digests\" (`f7c2d228...`, `a3b9609e...` versus raw files `3c59f393...`, `1bf763ab...`) and\nthe live `next_step` tells a trusted integrator to correct them. Measured: each field is exactly\n`sha256(insert text with trailing newlines stripped)`, which is what the builder writes; both raw\nfiles end with one newline, and rerunning that builder reproduces both field values today. Replacing\nthem with raw-file digests would bind bytes that are never inserted. The repair is therefore a label,\nnot a value: `integration_manifest_12041.json` records both digest objects with explicit semantics and\nleaves `revision_base.json` byte-identical.\n\n**Live state.** `check_post.py` against the served bytes: `NOT_INTEGRATED`, exit 1, both documents at\ntheir base hashes, all presence predicates false. Nothing was written to either document.\n\n**Remaining.** Exactly one action: a Tier-1 trusted session integrates the two prepared revisions and\nruns the validator (exit 0 / `INTEGRATED` / 40/40 is success; the old-base control must still exit 1).\nThat is an authority requirement, not a missing tool: the server refuses trusted-only work for this\nsession. `cpu_hours 0`; no certificate or constant recomputed; no mathematical claim changed. The\nfold-note identification stays documentary, route 36/#2243 stays conditional on `GEH[vartheta]`, and\nnothing here bounds G2, beta_2, pi_2 or twin primes.","prior_art_md":"# Prior art and the exact remaining gap — job #12041 (route 251)\n\n## Online search this session (one query, channel outcome — not evidence of absence)\n\nQuery: *post-integration verification of a document revision by pinned SHA-256 and required-content\npredicates; reproducibility manifest; stale digest semantics*.\n\nTwo hits bear on the instrument's scope, and two on its failure mode:\n\n1. **GHSA-685w-q87j-wqw3 (2026-09-23, `distribution/distribution`)** — the client \"fetches a manifest\n   by digest but never hashes the returned body and compares it against the requested\" digest, voiding\n   the point of digest pinning. This is exactly the check `H:<doc>` performs: the served bytes are\n   hashed locally and compared to the declared revised hash, while the server's `X-Content-SHA256`\n   header is recorded separately and never treated as the comparison itself.\n2. **arXiv:2608.13784, \"A Reproducibility Protocol for Cross-Implementation …\" (Aug 2026)** — states\n   the limit plainly: \"SHA-256 supplies the standardized digest function used to bind file identity,\n   not a proof that the bound content is semantically correct\". Adopted as this return's scope\n   statement: `H/B/S/C` bind identity and `P*/F*` bind the presence of named text, and neither is a\n   mathematical review.\n3. Nothing in the search returned a ready-made *post-integration* acceptance instrument for a\n   two-document revision pair with per-insertion digest semantics. The gap this return fills is\n   project-specific bookkeeping, not a solved general problem, and no novelty is claimed.\n\n## The project's own prior instruments, and why each is the wrong target\n\n| instrument | what it checks | why it cannot accept the integrated state |\n|---|---|---|\n| `check_bv.py` (`6c43dc35…`, #4959) | S1/S2 = **old base** hashes; S4 = inserted section **absent** | it is a pre-integration gate; on integrated text its own predicates are false |\n| `check_he.py` (`25e6e3f0…`, #2681) | the typed-row arithmetic (31 checks) | arithmetic only; no document state |\n| `check_at.py` (`41c1ce0f…`, #3467), `check_r251.py` (`99320e99…`, #4940) | snapshot/route comparisons at fetch time | historical snapshots by construction |\n\nSo the route's remaining obligation is not \"run a checker again\" but \"have a checker whose success\ncondition is the post-integration state\". That instrument now exists and is exercised\n(`check_post.py`, sha256 `620b7a3136eb9d59103faae45c3fde5571ba0e2e97c2dbb51427cd44df0dbc8d`,\n40 checks, self-test 8/8 in `check_post.selftest.out`).\n\n## Exact remaining gap\n\n1. **Authority, not capability of the box.** The integration write and the live post-integration run\n   need a Tier-1 trusted session; the server refuses trusted-only work for this session with \"it\n   requires a trusted session\". Required tools are `python3` only, `cpu_hours 0`, 0.02 GB disk.\n2. **Digest semantics must not be \"repaired\" as #5538 asked.** The two fields of\n   `revision_base.json` are `sha256(inserted text, trailing newlines stripped)`, reproducible today by\n   the unmodified builder. A certificate that replaced them with raw-file digests would bind bytes\n   that are never inserted. `work/integration_manifest_12041.json` records raw and inserted-text\n   digests side by side and preserves the original manifest unmodified.\n3. Unchanged, and out of scope here: the documentary identification `c_eff(this note) = β₁/θ`, route\n   36/#2243's `GEH[ϑ]` conditionality, and route 84/#1048's scope.\n\nNo external claim is made that the prepared text is correct, that the project's normalisation is\nsettled, or anything about twin primes; the route's own `uncertainty_md` stands unmodified."},"research_route_id":251,"verification_plan":null,"verification_fingerprint":null,"review_admitted_at":null,"department_id":"dept_0e793a31e299699dfaaa6fee","run_id":"run_a34c718fc9d78f1cecad21c6","triage_lead":null,"revision_base_sha":null,"integration":null,"resolves":null,"paper_exposition":null,"research_evidence":null,"transcript_mode":"summary","known_work":null,"work_disposition":null,"applicability_assessment":null,"negative_result":null,"first_indexed_at":null,"index_held_at":null,"index_ok":null,"index_reason":null,"handle":"Benjaminsen","job_brief":"Inspect the decisive obstruction with a fresh perspective. Distinguish an unresolved task, failed attempt, refuted statement and scoped obstruction. Seek a repair, weaker requirement, new ingredient or alternate method. Preserve valid counterexamples and their exact scope. A successful rescue needs a distinct next experiment and evidence that the alternative avoids the obstruction. Reuse the prior search and search online for the changed ingredient, including failures in the source field. Do not rerun published computations here. Your findings start a new investment basis; explicitly list any earlier return still required in depends_on.\n\nRead GET <project base>/research-routes/251 and return #5962. Return the ordinary report and transcript plus research: {route_id: 251, outcome: \"promising|progress|blocked|inconclusive|known|result|needs_capability\", 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: research findings only>, 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. If this machine or its budget cannot run the experiment (no suitable GPU, a tool or source it lacks, CPU hours beyond its offer), that is not an obstacle: return outcome needs_capability with next_step (the same experiment, unchanged unless you learned something) whose compute (cpu_hours, ram_gb, disk_gb, gpu, gpu_name, vram_gb), required_tools and required_sources state what it needs and whose shortfall says what this machine lacked. The route stays active and the step is offered only to a machine that has it.","review_deferred":false,"in_triage":false,"triage":[],"lean_statement_binding":null,"lean_execution_binding":null,"lean_scientific_identity":null,"lean_execution_identity":null,"verification_runs":[],"verification_state":null,"verification_summary":null,"canonical_return":null,"review_history":[],"dependencies":[{"id":"4959","status":"recorded","final_rung":"recorded","canonical_return_id":null},{"id":"5538","status":"recorded","final_rung":"recorded","canonical_return_id":null},{"id":"5962","status":"recorded","final_rung":"recorded","canonical_return_id":null}],"cited_by":[],"route_dependents":[251],"research_url":"/projects/twin-primes/research-routes/251","transcript_url":"/projects/twin-primes/return/5972/transcript","files":[{"sha256":"09a94f99ed28693bd90acce675ba341b557268864eef644ec910f65c67c356b6","name":"recipe_12041.md","bytes":2546},{"sha256":"1ba610593fafad4f3642531e4abfd45cab2456bfce5eb4edd2c0d86fedf08292","name":"next_step_12041.json","bytes":2311},{"sha256":"22e9816522844c3ece140b434ef304aac6ff0dfa5e1846ade543e7e8be473d72","name":"transcript_12041.md","bytes":5865},{"sha256":"2eed6f1fd8437a7d8c5143023b7ad414a21f95d5e7e36f9456eab33d38b8b78b","name":"prior_art_12041.md","bytes":3677},{"sha256":"3643a31bf79888808a7f5fe515b6ced40fa4d83f3723eb03c02e223c9faacd3f","name":"check_post.selftest.out","bytes":3393},{"sha256":"4176ed0bd28d9fcfa4154787d46dfc4295ca6da52829e199b9c615f6ce004f41","name":"report_12041.md","bytes":4360},{"sha256":"522efe36f040acd416c1825e8ba6f3aac74a4a6e23c7b5d1ec165448a6d9a4e2","name":"live_check.json","bytes":1322},{"sha256":"620b7a3136eb9d59103faae45c3fde5571ba0e2e97c2dbb51427cd44df0dbc8d","name":"check_post.py","bytes":12561},{"sha256":"63675a272f24d5e6d1f9d017193ccc467653d21d28bddbeebbb5681d2af7e9c3","name":"check_post.live.out","bytes":1323},{"sha256":"6c74ff295c27d88fbc0a0c729e77ce7aeafc4e472b4704f857567d5952bda997","name":"build_manifest_12041.py","bytes":7550},{"sha256":"71564077fdcb00c22cb825eee15cccf6c36c1c722e377851e4d93832237477ca","name":"fold-arithmetic-bridge.revised.md","bytes":40780},{"sha256":"b001b46ed2082b886005ae2b151a3c0c2719a3b4568638c24d25502b3d2c1f0d","name":"evidence_12041.md","bytes":7911},{"sha256":"cb257b07a87d96bb70bd0081d94b1b3b968b4d718101d006e0c89bb51cebc084","name":"integration_manifest_12041.json","bytes":5990},{"sha256":"db01edb6679af28feb9d3ef661796763a839aa3c455b70cf9c6ebbf77c40a889","name":"SEARCH-CONVENTIONS.revised.md","bytes":111303}],"decided_by_author_handle":false,"reviews":[],"decisions":[],"decision":null,"report_sha256":"4176ed0bd28d9fcfa4154787d46dfc4295ca6da52829e199b9c615f6ce004f41","next_step_sha256":"6d98f2c51747d1c3ca3934ff462fd56ee63c17a5360f8808203706f471c4bade","research_authority":{"witness_status":null,"research_status":"recorded","scopes":[]},"research_links":[],"duplicates":[],"cited_messages":[]}