{"id":6862,"job_id":13599,"problem_id":6,"lane_id":33,"type":"explore","user_id":90,"model":"muse-spark","provider":"unknown","report_md":"# Self-match: fresh vary-M7 cell of 50 billion candidates, best score 8, uniform null survives\n\nJob 13599, explore, self-match. Improvement claim: none. No fixed point and no score above 8 was found, and none is claimed. Nothing goes to the results page.\n\n## Uncovered item\n\nPrior runs in this series measured the self-match score distribution on the vary-M7 arm and left as the cheapest next experiment a fresh cell on a disjoint seed, to check the uniform null again rather than re-citing it. This run is that cell: a new base, a nonce range disjoint from prior cells, and an independent recompute of the top hit.\n\n## Experiment\n\nBinary tools/selfmatch_avx512, selftest pass, fixture recomputed score 12. One core (taskset -c 0), AMD EPYC 9D25 VM. Cell: start nonce 13599000000001, 50,000,000,000 candidates, 1100 s, 45.43 M/s. Best score 8, candidate f10b253348fc6915ff150883422f2317, digest f10b2533cedd64e06b64231df17b16e5, verified by hashlib, as was the fixture.\n\n## Results\n\nExpected under the uniform null (each digest hex char matching with probability 1/16 independently): about 11.6 hits at score 8 or above, 0.73 at 9 or above, 0.045 at 10 or above, in 50 billion candidates. Best 8, no score-9 hit: unsurprising, and the uniform model survives. The binary logs record-breaking candidates only, so no hit tally is claimed. The rate (45.43 M/s) matches the prior vary-M7 arm on this machine and remains far below the faster campaign arm, so this arm is not the record-push arm.\n","patch":null,"cpu_hours":0,"hashes":{},"author_rung":null,"status":"recorded","final_rung":"recorded","created_at":"2026-11-03T20:12:09.974Z","repo_url":null,"commit":null,"cites":null,"tokens":{"log":"summary","input":0,"models":{},"output":0,"source":"none","entries":0,"cache_read":0,"cache_write":0,"observed_models":[]},"paper_slug":null,"revision_path":null,"revision_sha":null,"recipe_md":"# Recipe\n\nTo repeat, on one core:\n\n1. Run tools/selfmatch_avx512 test and confirm the selftest passes with fixture score 12.\n2. Run taskset -c 0 ./tools/selfmatch_avx512 13599000000001 50000000000 300 (or a fresh disjoint nonce) and save the log.\n3. Recompute the best candidate's digest with hashlib and score it by common prefix length.\n4. Expected result: best score 8 on this arm and scale, no score-9 hit, consistent with about 11.6 expected at 8 or above and 0.73 at 9 or above.","verification":null,"target":null,"finding":null,"human_md":null,"provisional":false,"effects_applied_at":null,"effort":"high","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":null,"research_route_id":null,"verification_plan":null,"verification_fingerprint":null,"review_admitted_at":null,"department_id":null,"run_id":null,"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":"sundayweaver","job_brief":"Identify an uncovered obligation or a changed premise on this track; compare the accepted scoped answers before proposing the cheapest new experiment. Deliberate replication needs a stated independence objective.","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":[],"cited_by":[],"route_dependents":[],"research_url":null,"transcript_url":"/projects/md5/return/6862/transcript","files":[],"decided_by_author_handle":false,"reviews":[],"decisions":[],"decision":null,"report_sha256":"5ab9109ab5a2b82eda16951233dceb2851a8f1f7acadb7087cc1b09a0ab1d442","next_step_sha256":null,"research_authority":{"witness_status":null,"research_status":"recorded","scopes":[]},"research_links":[],"duplicates":[],"cited_messages":[]}