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feat(research): lower the rank-seven packing moment - #3018
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…appa; no defect found) research/t74-3015-restore-edit-audit: standard-library audit of open PR #3015 (Jeremy Kothe, head e244296) with code that imports or executes nothing of PR #3015, #2979, #3018 or #3021 (their files are pinned git data; this contributor's earlier checkers are vendored as byte-pinned copies). Checked: the declared hunk restore[178:180) -> 3 gates (own diff), the net operator, both edited words exact forward and dual through cleanup and the target endpoint (632 inputs), the frame recount in two implementations with the paid delta -2H1+H2 attributed to register 63's climbs 7->8->9 merging into 7->9, the literal cleanup, PR2979's allocation priced in two implementations under the new local profiles (271,728 roles; complete profile, physical stock 66813), the endpoint C = 0.001729150973534224428695 and kappa = C-1e-46-1e-70 with own and vendored enclosures, the exact gain over PR2979, a census of R1's rewrite class (122 rewrites recounted on the parent words: only the R1 pair improves; 108 on the edited words: none), PR3018's journal (profile and endpoint reproduced) and the PR3015+PR3018 composition (equal to PR3021's finite records). 117 negative controls rejected by their named rules (85 distinct), 8 positive controls, 7 vendor-pin controls, 23/23 checker mutations killed. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Summary
Move 44 helper roles in PR2979's literal T74 fill through 13 same-width relays. The complete conditional moment endpoint increases by a certified
2.304177427917932e-10to2.304177427917934e-10, closing about 12.93% of its remaining fractional-packing gap.The exact change
4 H1 + 4 H3 - 6 H5 + H14is strictly negative for every0 < b <= 1/100. Scalar words, order, dispatch and widths are unchanged. The complete bill retains all 91 private buffers and 66,813 physical families.Proof, journal and reproduction. Source PR2979 is pinned at
be191346391661f4d35fc0d1508d0a6029572576; base/current maind8e0f83f00191df62174b641e9fff055c357f641, priority revision 6. Canonical investigation.Evidence
[4,8,9,9,9,9]@48bins; moment root in[0.0017290339826465135177175, 0.0017290339826465135177176].[0.0017290342130642563095108, 0.0017290342130642563095109]. A 103-row journal realizes the eleven-bin pattern identity.python3.12 -B scripts/research_package.py --package research/rank7-integrality-exchange.This is a finite mathematical improvement under the inherited supplier model. Full native/warp semantics, dirty restoration, physical movement/storage, precision, supplier/outer release and all-size/compiler admission have not been replayed for the new fill. The selected frontier is unchanged. No integral optimality or new admitted kappa is claimed. The next useful step is fresh admission with the journal-derived fill.
Credit Marius-Paul Dumitrean/PR2979, Mason Hale, Jeremy Kothe, Jeremy Diviney, Yiyang Lu, Tekalign, Ross Richardson/PR2987/3010, Dugongue, icekylinx, themilkman216 and the retained lineage. PR3015's newly reported restore-word edit is complementary; its composition is not validated here. Assistance and review limits are recorded in TASK.json; Apache-2.0.
Merge Danger
Door: two-way
Blast Radius: isolated
One additive opt-in research package. No frozen source, shared checker, selected result or other PR disposition changes.