Note · every file published with it
A dividing-plane barrier in the OpenAI forced Navier-Stokes blow-up construction
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Everything published with the note A dividing-plane barrier in the OpenAI forced Navier-Stokes blow-up construction: the PDF and its source, its figure, four reviews with the written answers to their findings, the checker, a program that recomputes the note's numbers, with its recorded output, its tests and the program that draws the figure, and, under lane/, the material of the line of work the note came from. Claude Fable 5.1, a model made by Anthropic, wrote the note at the owner's direction on October 1, 2026, the date on its title block, and its text was revised through October 2. As of October 3, 2026, no human mathematician has read it.
Where its question came from: a separate line of work the owner ran with frontier-model sessions on the OpenAI forced Navier-Stokes blow-up manuscript. On September 30, 2026, Claude Opus sessions wrote section digests and eleven explanations, from which a Claude Fable 5.1 session assembled a ledger of the construction's moves; the explanation of the manuscript's Appendix B asked whether the bias on the dividing plane is forced, and sketched the answer. On October 1 a Claude Fable 5.1 session ranked that question first on its map of open questions and wrote the note. No small model's line is among the note's sources, and the material has not been filed into the notebook.
The reviews, in the order they were made: GPT-6 Astra, the other company's model, on October 1, of the write-up that preceded the note, which found the flux identity already in Duraiswami's paper; Claude Fable 5.1, a fresh instance of the writer's own model, the same evening; GPT-6 Astra again on October 2; and Claude Opus 5.5, a different model from the writer's company, on October 2, which found that the explanation of Appendix B had sketched the barrier the day before. Every reviewer is an AI model. The reviews keep the private repository's internal names, and their line numbers point to the version each one read, since revised.
What can be rerun: the checker, from the files here, in about one second, and three reviewers reran it. Its test file loads it from a path of the private repository, so the tests do not run from the published folder as it stands. The note's theorem rests on its Section 3, not on the program.
Under lane/: an index written when the work began; the ledger, a move-by-move account of the construction in 183 entries, as readable text (version 1.1, of October 1) and as two data files, version 1.1 and version 1.0 of September 30, which is kept frozen as exactly what the three small models were shown in a one-time test with the reasons withheld (their 16,018 lines never recovered the reason for a move); and eleven explanations, ten of the manuscript's sections and appendices and one of its companion on the Euler equation, each by a fresh Claude Opus session on September 30. These files keep the project's internal names.
The paper
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The note, 13 pages dividing-plane-barrier.pdf
- Size
- 151,747 bytes
- SHA-256
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The note's source main.tex
- Size
- 47,201 bytes
- SHA-256
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Figure 1: the swirl shear and the margin on the dividing plane figures/fig_midplane.pdf
- Size
- 24,449 bytes
- SHA-256
138ee9dc281b121cb2cf0e4038721dcc6b422ef234faf1f2dd0435543e6bc049
Reviews
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First review, by GPT-6 Astra (OpenAI), the other company's model, October 1, 2026 reviews/cross-review-report.md
- Size
- 23,063 bytes
- SHA-256
94bbf35645f6094d4abb1a278ebd79976f5576408f6dd328c3b798ad1d40cf05
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Written answers to the first review, October 1, 2026 reviews/cross-review-disposition.md
- Size
- 9,242 bytes
- SHA-256
1a2327dab4100f87c5fb19959ec12666eed6e79df7e04d4c6a3d2854aa38e4b3
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Second review, by Claude Fable 5.1 (Anthropic), a fresh instance of the writer's own model, October 1, 2026 reviews/self-review-report.md
- Size
- 26,311 bytes
- SHA-256
592c5f3223f93fc3a09100cecdde340b76ab7e90d75d95fdd49682bbab4d567c
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Written answers to the second review, October 1, 2026 reviews/self-review-disposition.md
- Size
- 27,819 bytes
- SHA-256
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Third review, by GPT-6 Astra (OpenAI), the other company's model, October 2, 2026 reviews/review-2026-10-02-astra-report.md
- Size
- 14,532 bytes
- SHA-256
73b53d692618398fddf2139ae0b9246491b15b7ae2d1106f1403bbabfe616301
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Written answers to the third review, October 2, 2026 reviews/review-2026-10-02-astra-disposition.md
- Size
- 5,435 bytes
- SHA-256
2dbd4e40e0deddf76cbce2dd3257de658a5384feab77658c44bdea79cb22eb5e
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Fourth review, by Claude Opus 5.5 (Anthropic), a different model from the writer's company, October 2, 2026 reviews/review-2026-10-02-opus-report.md
- Size
- 50,699 bytes
- SHA-256
58b2b7441f98ce6e0cebef321b5f5ea9c71d9858808c01b80e6ae357e2661b90
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Written answers to the fourth review, October 2, 2026 reviews/review-2026-10-02-opus-disposition.md
- Size
- 6,805 bytes
- SHA-256
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Checks
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The verification program for the barrier checks/midplane_barrier.py
- Size
- 23,658 bytes
- SHA-256
371c2e2b13d570dc0c6a453859157d268f5a7cb1a2036b7e14b46d5c609f2bf8
What it wrote when it ran
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Recorded output of the verification program, October 1, 2026 checks/midplane_barrier.json
- Size
- 7,228 bytes
- SHA-256
27753a1d4111c25dc8b17d934ceb6ea9eee2997c3798d5a0e9d0f9585a59eec2
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Automated tests of the verification program checks/test_ns_midplane_barrier.py
- Size
- 3,023 bytes
- SHA-256
4925e6bdd736bb0f628be321b9caaec13fcfc72ada5d41c5f47e763056dc5b7f
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The program that draws the figure checks/make_figures.py
- Size
- 2,959 bytes
- SHA-256
631c9a2e033861658d7ebcba542cec5e3bc78a4d111b21ff50d5cf88db90ae90
What it wrote when it ran
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Figure 1: the swirl shear and the margin on the dividing plane figures/fig_midplane.pdf
- Size
- 24,449 bytes
- SHA-256
138ee9dc281b121cb2cf0e4038721dcc6b422ef234faf1f2dd0435543e6bc049
Other material
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Index of the work on the OpenAI manuscript, September 30, 2026 lane/index.md
- Size
- 5,634 bytes
- SHA-256
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The ledger of the OpenAI manuscript, version 1.1, October 1, 2026 lane/ledger.md
- Size
- 635,730 bytes
- SHA-256
60724b8904001a2d8d5044e4ca59390d69ac01396e07bbc09c9daf1b59776425
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The ledger as data, version 1.0, September 30, 2026 lane/ledger-v1.0.json
- Size
- 897,753 bytes
- SHA-256
f2f7a98d815175f32ec70f1d694bf138920b250608d0376a13191fe89b8120a2
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The ledger as data, version 1.1, October 1, 2026 lane/ledger-v1.1.json
- Size
- 1,021,722 bytes
- SHA-256
73908ae5c651d11684c8a670d84a81bf53cb0cb0e67cb9f29d63dd7dfbfc2aa3
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Explanation of the manuscript's Section 4: constructing the leading-order flow (pages 24 to 45) lane/explanation-04.md
- Size
- 13,866 bytes
- SHA-256
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Explanation of the manuscript's Section 5: correcting the base flow to every order (pages 45 to 62) lane/explanation-05.md
- Size
- 14,342 bytes
- SHA-256
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Explanation of the manuscript's Section 6: an auxiliary torus, and keeping the oscillations' regions apart (pages 62 to 73) lane/explanation-06.md
- Size
- 14,307 bytes
- SHA-256
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Explanation of the manuscript's Section 7: oscillatory realization and correction of the residual stress (pages 73 to 88) lane/explanation-07.md
- Size
- 14,263 bytes
- SHA-256
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Explanation of the manuscript's Section 8: compactly supported mean corrections (pages 88 to 100) lane/explanation-08.md
- Size
- 14,505 bytes
- SHA-256
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Explanation of the manuscript's Section 9: residual improvement and the local field (pages 100 to 116) lane/explanation-09.md
- Size
- 14,582 bytes
- SHA-256
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Explanation of the manuscript's Section 10: compact forcing and whole-space breakdown (pages 116 to 126) lane/explanation-10.md
- Size
- 13,984 bytes
- SHA-256
1ed393dfb1e7a91fba1b497f5a479908c38c6332c050d7e2f0ae7262f2e445b4
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Explanation of the manuscript's Appendix A: matching radial moments and constructing the heat exterior (pages 126 to 144) lane/explanation-a.md
- Size
- 14,523 bytes
- SHA-256
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Explanation of the manuscript's Appendix B: analytic profiles near the axis and their continuation (pages 144 to 157) lane/explanation-b.md
- Size
- 11,143 bytes
- SHA-256
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Explanation of the manuscript's Appendix C: realizing the admissible stress cone (pages 157 to 165) lane/explanation-c.md
- Size
- 12,551 bytes
- SHA-256
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Explanation of OpenAI's companion manuscript on the Euler equation (57 pages) lane/explanation-e.md
- Size
- 17,011 bytes
- SHA-256
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