---
slug: the-gap-that-changed-sides
passed: 2026-10-14
by: the assay line (research/assay-line/cited-1014b/), Codex fixer directed by claude-assaying-boyle-1014; source record by Codex, checked by Codex and a Claude agent
checked: 108
confirmed: 98
wrong: 10
unverifiable: 0
observed: 0
stale: 0
---

This pass implements the directing instance's cited-1014b triage for this layer at 34d2428fa7 after the fixer reread every triage item's evidence. It carries forward the checkers' source-confirmed claims from N2-codex.md and N2-claude.md, with triage verdicts taking precedence and affected live-output claims reconciled to the repairs. Those retained entries are attributed to their checkers, not presented as a fresh independent reread by the fixer. The counts put nine MINOR findings and one WRONG finding in wrong; all ten have individual dispositions below. Nine items were fixed; K6 remains listed under the directing triage's shared-class rule. The dated claims pass is not a passing execution of the layer verifier, which still aborts on K6.

## Claims

- MINOR | [X1] The verifier hashes the normalized embedded Table V arrays with SHA-256 and checks the source row count, energy endpoints, and benchmark integrals. | git show e9540ec254:research/the-gap-that-changed-sides/verify-the-gap-that-changed-sides.mjs; https://arxiv.org/html/2302.08834v3#S8.T5 | The original verifier asserted 43 stored RHO2013 rows. This fixer independently reread and extracted Table V: the recorded window contains 44 rows. The checksum pins stored data; it does not establish source completeness. The description, count, hash and default-proxy expectation are repaired with K1.
- MINOR | [X2] Data checksum: FNV-1a 12f65207 The verifier hashes the normalized embedded Table V arrays with SHA-256 and checks the source row count, energy endpoints, and benchmark integrals. This compact browser label is a live FNV-1a fingerprint of the same arrays. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html; git show e9540ec254:research/the-gap-that-changed-sides/verify-the-gap-that-changed-sides.mjs; https://arxiv.org/html/2302.08834v3#S8.T5 | The old live FNV-1a fingerprint 12f65207 was correct for the incomplete arrays. The repeated source-count overclaim is repaired with X1/K1/K3. The resulting live fingerprint is 4240be5d; no static fingerprint was substituted.
- MINOR | [X3] It postdates the 2025 Initiative averaging decision, so it belongs here as an epilogue, not retroactively inside that average. | https://arxiv.org/abs/2407.10913; https://arxiv.org/html/2505.21476v3#S3.SS6.SSS2; https://arxiv.org/html/2505.21476v3#S4.SS2 | The arXiv history dates v1 to 15 July 2024 and v2 to 28 April 2026. WP25 sections 3.6.2 and 4.2 discuss the earlier study and say its unpublished results are excluded from the main averages. The page now names the 2026 revision and separates its later date from that publication-policy exclusion.
- WRONG | [X4] ×10^-12 ÷ 10 = ×10^-11 | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Direct arithmetic gives 10^-12 / 10 = 10^-13. The source coefficients already convert correctly: 1165920705 / 10 = 116592070.5 and 148 / 10 = 14.8. The display now gives n × 10^-12 = (n / 10) × 10^-11. One dated correction is present in HTML and mirrored in markdown.
- MINOR | [K1] This workbench integrates the pion form-factor values published in CMD-3 Table V. | https://arxiv.org/pdf/2302.08834v3; https://arxiv.org/html/2302.08834v3#S8.T5 | Table V gives 756.059 MeV and 44.794, with uncertainties 0.122 and 0.416. The original RHO2013 array skipped it between 755.702 and 759.566 MeV. Restored [0.756059,44.794]. All 44 RHO2013 and 72 RHO2018 window pairs now match the source. The default raw proxy is 380.7832469084571, displayed as 380.78.
- MINOR | [K2] Values in green are recomputed on this page, not pasted results. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | The green declared-omissions label is static; the unit-conversion summary is fixed text; the method row echoes a stored constant. The introduction now identifies the actual calculated outputs and identifies constants, conversion notes and omissions as supporting information. The markdown body is narrowed too.
- MINOR | [K3] The verifier hashes the normalized embedded Table V arrays with SHA-256 and checks the source row count, energy endpoints, and benchmark integrals. | git show e9540ec254:research/the-gap-that-changed-sides/verify-the-gap-that-changed-sides.mjs | Same source-count defect as X1. The verifier now asserts the independently recorded 44/72 window counts and SHA-256 a1fae07971cb12333280e377315c407283bb6ec842596fd0705fad5639bf2d6b. The README and exact published verifier mirror agree. The midpoint comparisons use the restored data.
- MINOR | [K4] It postdates the 2025 Initiative averaging decision, so it belongs here as an epilogue, not retroactively inside that average. | https://arxiv.org/pdf/2505.21476v3; https://arxiv.org/html/2505.21476v3#S4.SS2; https://arxiv.org/abs/2407.10913; https://arxiv.org/html/2505.21476v3#S3.SS6.SSS2 | Same version ambiguity as X3. The fixer reread arXiv submission history and WP25 sections 3.6.2 and 4.2. The 2026 revision is later, while the earlier preprint was already discussed and excluded from the main averages because it was unpublished.
- MINOR | [K5] The purest case of the decision this page numbers last. | git show e9540ec254:src/content/strata/every-plus-or-minus.md | The quoted relation is authored on Every Plus-or-Minus about this muon layer, so its deictic wording reverses direction here. The muon metadata now has its own outgoing note naming Every Plus-or-Minus and the theory-reference choice. The actual Nearby generator regenerated only this layer block from that note.
- MINOR | [K6] (added) How this layer is checked: research/the-gap-that-changed-sides/verify-the-gap-that-changed-sides.mjs (the placard's linked check of this page) | git show e9540ec254:research/the-gap-that-changed-sides/verify-the-gap-that-changed-sides.mjs | Reproduced before and after the repairs: the real verifier emits 544 PASS lines, then exits 1 on its U+2026 assertion. The existing generated Dust Between the Stars teaser contains that character. Per triage, retain MINOR and list this generated check-placard class under board note 81816d, the placard reach lines; preserve the local assertion failure for shared follow-up.
- CONFIRMED | The final muon measurement did not retreat toward the Standard Model. | https://arxiv.org/abs/2506.03069; https://arxiv.org/abs/2308.06230; https://arxiv.org/abs/2006.04822 | Retained from Codex N2: Entry 001: The 2023 abstract gives "116\,592\,059(22)" for the world average; the final abstract gives "116\,592\,0715(145)" in units ten times smaller. Thus the average rose from 116592059 to 116592071.5, moving away from the fixed 2020 prediction. The claim refers to the measurement, not to the changed theory.
- CONFIRMED | The reference calculation changed. | https://arxiv.org/abs/2505.21476 | Retained from Codex N2: Entry 002: The update explicitly reports a "major upward shift of the total SM prediction" and gives "116\,592\,033(62)" in units of 10^-11.
- CONFIRMED | the electron-positron evidence that still refuses to become one number. | https://arxiv.org/abs/2505.21476 | Retained from Codex N2: Entry 003: The abstract says the dispersive tensions make it "impossible to combine the results in a meaningful way". This is specifically the current combined dispersive LO-HVP estimate.
- CONFIRMED | The anomaly is aμ = (gμ - 2) / 2. | https://pdg.lbl.gov/2026/reviews/rpp2026-rev-g-2-muon-anom-mag-moment.pdf | Retained from Codex N2: Entry 004: The checker opened the PDF after an UNREADABLE fetch. Page 1 defines "aµ ≡ (gµ − 2)/2". This is the same anomaly and normalization.
- CONFIRMED | Every large number below is that anomaly, never g - 2 itself. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html; https://arxiv.org/abs/2506.03069; https://arxiv.org/abs/2505.21476 | Retained from Codex N2: Entry 005: The displayed central values match the anomaly a_mu in the experimental and theory abstracts. The engine labels them "theory" and "experiment" and uses the values without a factor of two. Small HVP numbers are contributions to that anomaly.
- CONFIRMED | Three theory positions, two experimental summaries, and one deliberately missing result. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 006: HTML lines 163-165 contain "2020 reference", "2025 lattice", and "e+e- status"; lines 198-199 offer "World average" and "Fermilab only". The third theory position says "NO CONSENSUS VALUE".
- CONFIRMED | All arithmetic is evaluated in your browser from the displayed inputs. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 007: The source excerpt implements "delta = exp.value - theory.value" and returns the square-root variance and quotient. Running the shipped engine and interface produced the displayed values; external benchmark inputs are explicitly labelled published values.
- CONFIRMED | 2025 lattice-based Initiative update | https://arxiv.org/abs/2505.21476 | Retained from Codex N2: Entry 008: The abstract says "Adopting the latter in this update", referring to a consolidated lattice-QCD LO-HVP average. This supports lattice-based, without implying that every SM contribution comes from a lattice calculation.
- CONFIRMED | NO CONSENSUS VALUE | https://arxiv.org/abs/2505.21476 | Retained from Codex N2: Entry 009: Supported in the e+e- panel context by "impossible to combine the results in a meaningful way". The page does supply a lattice prediction elsewhere.
- CONFIRMED | The 2025 Initiative judged the electron-positron inputs too inconsistent for a meaningful combined dispersive estimate. | https://arxiv.org/abs/2505.21476 | Retained from Codex N2: Entry 010: The source explicitly ties the failure to combine dispersive evaluations to the increased tensions after CMD-3. The page preserves that scope.
- CONFIRMED | This position fails closed and will not manufacture a current z score. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 011: The source branch says "No consensus value and no z score." The interface capture actually selected ee and confirmed that the numerical comparison is hidden and the conflict panel is shown.
- CONFIRMED | CMD-3-based 2π HVP5260(42)× 10-11 | https://arxiv.org/html/2309.12910v2 | Retained from Codex N2: Entry 012: Equation (5) gives "5260(42)" with units 10^-11 for the CMD-3-based full two-pion contribution, not total HVP or the full magnetic anomaly.
- CONFIRMED | Earlier data average5060(34)× 10-11 | https://arxiv.org/html/2309.12910v2 | Retained from Codex N2: Entry 013: Immediately after equation (5), the paper says "5060(34)" is "based on the average of all previous measurements" with chi-squared error inflation.
- CONFIRMED | The 5260 benchmark uses CMD-3 where it has coverage and other data elsewhere. | https://arxiv.org/html/2309.12910v2 | Retained from Codex N2: Entry 014: The paper says "exclusively on CMD-3 data" for sqrt(s)=0.327-1.2 GeV and "average of other measurements outside of this energy range".
- CONFIRMED | CMD-3's full 5260(42) benchmark also uses non-CMD-3 data outside its measured region. | https://arxiv.org/html/2309.12910v2 | Retained from Codex N2: Entry 015: Same explicit coverage sentence as entry 14. The workbench warning correctly separates this full benchmark from the narrower embedded window.
- CONFIRMED | The naive calculation above assumes independent quoted errors and is not a CMD-3 collaboration significance. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 016: The code divides the difference by sqrt(cmd3Sigma^2 + earlierSigma^2), omitting covariance. It is the page calculation. The source benchmark has shared outside-range data, so calling the result naive is appropriate.
- CONFIRMED | A z score from this panel is a Gaussian display model. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 017: The code computes "z:delta / Math.sqrt(variance)". The warning expressly identifies the Gaussian interpretation as a display assumption, not an established error distribution.
- CONFIRMED | Independent mode combines uncertainties in quadrature. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 018: At rho=0 the variance expression is "exp.sigma * exp.sigma + theory.sigma * theory.sigma". Independent recomputation gives sqrt(14.5^2+62^2)=63.67299270491375.
- CONFIRMED | User ρ mode applies the displayed covariance formula; neither mode proves that theory systematics are Gaussian. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 019: The source subtracts "2 * rho * exp.sigma * theory.sigma". The declared qualification about theory systematics makes no stronger empirical claim.
- CONFIRMED | No committee switch can settle incompatible cross sections. | https://arxiv.org/abs/2505.21476 | Retained from Codex N2: Entry 020: The abstract says that incompatible dispersive inputs cannot be meaningfully combined. The sentence describes that substantive limitation, not an additional numerical result.
- CONFIRMED | Table V supplies the embedded points. | https://arxiv.org/html/2302.08834v3#S8.T5; public/strata/the-gap-that-changed-sides/index.html | Both N2 checkers confirmed that all stored pairs came from the table. This fixer independently extracted both source windows and, after K1, compared all 44 RHO2013 and 72 RHO2018 pairs in energy order: every pair matches.
- CONFIRMED | It is a transparent raw proxy, not the collaboration analysis. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 023: The source integrates central form factors, contains no collaboration covariance calculation, and applies no undressing or FSR correction. Its "raw proxy" label accurately limits the result.
- CONFIRMED | K(s) = ∫₀¹ dx x²(1-x) / [x² + (1-x)s/mμ²] | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 024: The kernel function returns "x*x*(1-x) / (x*x + (1-x)*s/m2)" and integrates from 0 to 1. It implements exactly the displayed definition of the proxy kernel.
- CONFIRMED | R2π(s) = β³|Fπ(s)|² / 4 | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html; https://arxiv.org/html/2309.12910v2#S0.E1 | Retained from Codex N2: Entry 025: The code says "var r=Math.pow(beta,3)*f2/4". Independently, CMD-3 equation (1) gives sigma_pi_pi = pi*alpha^2*beta^3*|F_pi|^2/(3s); division by 4*pi*alpha^2/(3s) gives this R ratio.
- CONFIRMED | aμ = α²/(3π²) ∫ ds K(s)R(s)/s | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html; https://pdg.lbl.gov/2026/reviews/rpp2026-rev-g-2-muon-anom-mag-moment.pdf | Retained from Codex N2: Entry 026: The engine uses "2*alpha*alpha/(3*Math.PI*Math.PI)*kernel(s)*r/e" and integrates over energy e. Substitution s=e^2 gives ds/s=2de/e, hence the displayed formula. PDG equation (56.16) uses the equivalent normalized kernel convention.
- CONFIRMED | Published RHO2013 window 380.06 ± 0.61 ± 3.64 0.6 to 0.88 GeV, × 10-10 | https://arxiv.org/html/2302.08834v3 | Retained from Codex N2: Entry 027: Equation (18) states "(380.06\pm 0.61\pm 3.64)" times 10^-10 for RHO2013; the surrounding integration interval is 0.6-0.88 GeV. The interface renders those three numbers exactly.
- CONFIRMED | Published RHO2018 window 379.30 ± 0.33 ± 2.62 0.6 to 0.88 GeV, × 10-10 | https://arxiv.org/html/2302.08834v3 | Retained from Codex N2: Entry 028: Equation (18) states "(379.30\pm 0.33\pm 2.62)" times 10^-10 for RHO2018 in the same window. The interface uses that benchmark, not its own raw integral.
- CONFIRMED | Published combined window 379.35 ± 0.30 ± 2.95 0.6 to 0.88 GeV, × 10-10 | https://arxiv.org/html/2302.08834v3 | Retained from Codex N2: Entry 029: Equation (18) states "(379.35\pm 0.30\pm 2.95)" times 10^-10 for the average in the same window.
- CONFIRMED | The raw browser proxy uses published |Fπ|² points, linear or step interpolation, and central constants. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 030: The engine interpolates actual Table V central values, uses "rule === 'left'" for the step alternative, and supplies the stated central constants. All embedded pairs were checked against the external table.
- CONFIRMED | It does not reproduce vacuum-polarization undressing, final-state radiation, the full covariance treatment, exact 0.6 GeV endpoint coverage, or data outside the table. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 031: Reading the complete engine shows just central form factors, kernel, interpolation, and integration; no covariance propagation or correction factors enter the integrand. Positive controls are its actual "pionMassGeV" and "kernel(s)" terms. Bounds are clamped to the table endpoints.
- CONFIRMED | The published comparison above is the benchmark, not a target silently fitted by this code. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 032: The integration path uses DATA and constants; "SOURCES.benchmarks" is read by the comparison/display functions, not by windowIntegral. Positive control: the interface explicitly reads the benchmark in publishedWindow. No scaling to force agreement occurs.
- CONFIRMED | σΔ² = σexp² + σtheory² - 2ρσexpσtheory. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 034: Directly implemented by "variance = exp.sigma * exp.sigma + theory.sigma * theory.sigma - covariance" with covariance=2*rho*sigma_exp*sigma_theory.
- CONFIRMED | Independent mode fixes ρ = 0. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 035: The source sets "state.rho=correlation==='user'?Number(byId('rho').value):0".
- CONFIRMED | The slider is constrained to -0.95 through 0.95 so the variance remains positive for the displayed inputs. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 036: The HTML specifies min="-0.95" and max="0.95". Algebraically the variance is (sigma_exp-sigma_theory)^2+2*(1-rho)*sigma_exp*sigma_theory, strictly positive throughout the stated interval for these positive errors.
- CONFIRMED | α = 1 / 137.035999177 | https://physics.nist.gov/cgi-bin/cuu/Value?alphinv | Retained from Codex N2: Entry 037: NIST says "Numerical value 137.035 999 177" for the inverse fine-structure constant, labelled "2022 CODATA recommended values".
- CONFIRMED | mμ = 105.6583755 MeV | https://physics.nist.gov/cgi-bin/cuu/Value?mmuc2mev | Retained from Codex N2: Entry 038: NIST says "Numerical value 105.658 3755" MeV for the muon mass energy equivalent. The engine converts it to 0.1056583755 GeV.
- CONFIRMED | mπ± = 139.57039 MeV. | https://pdg.lbl.gov/2025/listings/rpp2025-list-pi-plus-minus.pdf | Retained from Codex N2: Entry 039: The checker opened the PDF after an UNREADABLE fetch. Its mass listing states "139.57039± 0.00018 OUR FIT" in MeV. The quoted central value is correct.
- CONFIRMED | The kernel integral uses composite Simpson quadrature. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 040: The implementation gives endpoint weights 1, alternating interior weights 4 and 2, and multiplies by h/3; kernel(s) calls it with 160 subintervals. These are composite Simpson weights.
- CONFIRMED | The energy integral uses Simpson quadrature over an interpolated Table V curve. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 041: The linear branch calls Simpson with 480 subintervals; the left-step branch calls Simpson separately within each bin, with 16 subintervals. The separate midpoint implementation agrees within the declared tolerance.
- CONFIRMED | No vacuum-polarization undressing or final-state-radiation correction is applied to the raw form-factor proxy. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 042: The full integrand is "2*alpha*alpha/(3*Math.PI*Math.PI)*kernel(s)*r/e"; it contains neither a vacuum-polarization factor nor an FSR factor. Source searches were controlled by finding the actual kernel and beta factors in that same function.
- CONFIRMED | A complete bin covariance matrix is not embedded, so uncertainty propagation is not offered. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 043: DATA contains only [energy, central form factor] pairs. windowIntegral returns a scalar, and the interface offers no propagated error. Positive control: quoted external benchmark stat/syst errors do exist under SOURCES.benchmarks and are displayed separately.
- CONFIRMED | The lattice-based Standard Model prediction and final experiment are compatible. | https://arxiv.org/abs/2505.21476 | Retained from Codex N2: Entry 046: The 2025 abstract says "no tension between the SM and experiment at the current level of precision". The page computes 0.6046519625 standard deviations from the displayed final-world-average inputs.
- CONFIRMED | The electron-positron route remains unsettled because CMD-3 disagrees with important earlier two-pion measurements. | https://arxiv.org/abs/2505.21476 | Retained from Codex N2: Entry 047: The source identifies the new CMD-3 pion-pair measurement as increasing tensions among dispersive evaluations beyond a meaningful combination. This is the specific disagreement the page names.
- CONFIRMED | The unresolved work is to locate experimental, radiative-correction, or analysis sources of those differences and to understand remaining method-by-method HVP differences. | https://arxiv.org/abs/2312.02053 | Retained from Codex N2: Entry 048: The Davier et al. abstract discusses "higher-order radiative effects", "larger systematic effects than uncertainties assigned", and comparison with lattice QCD. This supports the stated unresolved experimental, radiative, and methodological work.
- CONFIRMED | The 2026 revision of a hybrid lattice and low-energy-data calculation reported 715.1(2.5)(2.3)[3.4] × 10-10 for leading-order HVP and a Standard Model comparison 0.5 standard deviations from experiment. | https://arxiv.org/abs/2407.10913; https://api.crossref.org/works/10.1038/s41586-026-10449-z | Retained from Codex N2: Entry 049: The revised abstract gives "715.1(2.5)(2.3)[3.4]" times 10^-10 and "only 0.5 standard deviations". Crossref dates the Nature publication to 22 April 2026. This is the revised 2026 result, not the 2024 preprint result.
- CONFIRMED | peer-reviewed / 2025 Muon g-2 Theory Initiative update Physics Reports 1143, 1-158. arXiv:2505.21476 . DOI:10.1016/j.physrep.2025.08.002 . Exact consortium author list at the record. | https://arxiv.org/abs/2505.21476; https://api.crossref.org/works/10.1016/j.physrep.2025.08.002 | Retained from Codex N2: Entry 051: ArXiv gives the update title and consortium; Crossref gives "volume":"1143", "page":"1-158", "container-title":["Physics Reports"], and publication year 2025. DOI matches. The tool partial match is author-list/HTML boilerplate, not a bibliographic discrepancy.
- CONFIRMED | peer-reviewed / 2025 Final Fermilab measurement Muon g-2 Collaboration, Physical Review Letters 135, 101802. arXiv:2506.03069 . DOI:10.1103/7clf-sm2v . Exact collaboration list at the record. | https://arxiv.org/abs/2506.03069; https://api.crossref.org/works/10.1103/7clf-sm2v | Retained from Codex N2: Entry 052: ArXiv gives the final-measurement title and collaboration. Crossref gives "volume":"135", "article-number":"101802", and publication date 2025-09-02 for DOI 10.1103/7clf-sm2v. The supplemental Crossref excerpt supplies the publication details absent from the arXiv abstract record.
- CONFIRMED | peer-reviewed / 2020 Earlier Theory Initiative reference Physics Reports 887, 1-166. arXiv:2006.04822 . DOI:10.1016/j.physrep.2020.07.006 . Exact consortium author list at the record. | https://arxiv.org/abs/2006.04822; https://api.crossref.org/works/10.1016/j.physrep.2020.07.006 | Retained from Codex N2: Entry 053: ArXiv and Crossref agree on the 2020 theory review; Crossref gives "volume":"887", "page":"1-166", and the stated DOI. The partial text match does not alter these fields.
- CONFIRMED | peer-reviewed / 2021 Original BMW lattice result Sz. Borsanyi et al., exact author list at the record, Nature 593, 51-55. arXiv:2002.12347 . DOI:10.1038/s41586-021-03418-1 . | https://arxiv.org/abs/2002.12347; https://api.crossref.org/works/10.1038/s41586-021-03418-1 | Retained from Codex N2: Entry 054: ArXiv names "Sz. Borsanyi" and the lattice calculation. Crossref gives "volume":"593", "page":"51-55", year 2021, and the stated Nature DOI.
- CONFIRMED | peer-reviewed / 2024 CMD-3 pion form factor Physical Review D 109, 112002. arXiv:2302.08834 . DOI:10.1103/PhysRevD.109.112002 . Table V supplies the embedded points. | https://arxiv.org/abs/2302.08834; https://api.crossref.org/works/10.1103/PhysRevD.109.112002 | Retained from Codex N2: Entry 055: ArXiv says "as published in Phys. Rev. D 109, 112002"; Crossref gives article 112002 and 2024-06-04. The online DOI title mismatch is caused by literal MathML tags in Crossref. The DOI, readable title, journal and authors match. The embedded pairs do come from Table V.
- CONFIRMED | peer-reviewed / 2024 CMD-3 full two-pion benchmark Physical Review Letters 132, 231903. arXiv:2309.12910 . DOI:10.1103/PhysRevLett.132.231903 . Exact collaboration list at the record. | https://arxiv.org/abs/2309.12910; https://api.crossref.org/works/10.1103/PhysRevLett.132.231903 | Retained from Codex N2: Entry 056: ArXiv says "as published in Phys. Rev. Lett. 132, 231903"; Crossref gives volume 132, article 231903, date 2024-06-04, and the stated DOI.
- CONFIRMED | peer-reviewed / 2024 Data-driven tensions M. Davier, A. Hoecker, A. M. Lutz, B. Malaescu, and Z. Zhang, European Physical Journal C 84, 721. arXiv:2312.02053 . DOI:10.1140/epjc/s10052-024-12964-7 . | https://arxiv.org/abs/2312.02053; https://api.crossref.org/works/10.1140/epjc/s10052-024-12964-7 | Retained from Codex N2: Entry 057: ArXiv and Crossref name Davier, Hoecker, Lutz, Malaescu and Zhang; Crossref gives volume 84, article 721 and date 2024-07-22. The title and DOI match.
- CONFIRMED | peer-reviewed / 2026Review of Particle PhysicsD. W. Hertzog and M. Hoferichter, review 56 in the 2026 PDG review. Muon anomalous magnetic moment review. | https://pdg.lbl.gov/2026/reviews/rpp2026-rev-g-2-muon-anom-mag-moment.pdf | Retained from Codex N2: Entry 058: The checker opened the PDF after an UNREADABLE fetch. Its title is "56. Muon Anomalous Magnetic Moment"; the byline names "D.W. Hertzog" and "M. Hoferichter". The footer cites Int. J. Mod. Phys. A 41, 2630011 (2026), although this individual review was revised August 2025.
- CONFIRMED | peer-reviewed / 2026 epilogue Hybrid HVP calculation Nature 653, 373-377. arXiv:2407.10913 . DOI:10.1038/s41586-026-10449-z . Exact author list at the record. | https://arxiv.org/abs/2407.10913; https://api.crossref.org/works/10.1038/s41586-026-10449-z | Retained from Codex N2: Entry 059: Crossref gives "Hybrid calculation of hadronic vacuum polarization in muon g − 2 to 0.48%", Nature volume 653, pages 373-377, publication 2026-04-22, and the stated DOI. ArXiv v2 lists the authors.
- CONFIRMED | Editorial date 29 July 2026. | git show e9540ec254:research/the-gap-that-changed-sides/README.md | Retained from Codex N2: Entry 060: The pinned research record begins "Checked 29 July 2026" and explains that the specification supplied no landing date, so the page uses the repository editorial date. It is explicitly an editorial date.
- CONFIRMED | Source verification record and executable audit live beside this stratum in the repository. | git show e9540ec254:research/the-gap-that-changed-sides/README.md | Retained from Codex N2: Entry 061: The named directory actually contains README.md and verify-the-gap-that-changed-sides.mjs at the pinned commit. The README includes all nine primary citations and the numerical audit description.
- CONFIRMED | World average minus 2025 theory: 116592071.5 - 116592033 = 38.5. Independent Gaussian uncertainty: √(14.5² + 62²) = 63.67. The quotient is 0.60. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 062: Independent arithmetic: 116592071.5-116592033=38.5; sqrt(14.5^2+62^2)=63.67299270491375; quotient=0.6046519625428081. The UI capture matches "38.5", "63.67", and "0.60 σ".
- CONFIRMED | PDG publishes the rounded comparison 38(63) × 10-11. | https://pdg.lbl.gov/2026/reviews/rpp2026-rev-g-2-muon-anom-mag-moment.pdf | Retained from Codex N2: Entry 063: The checker opened the PDF after an UNREADABLE fetch. Equation (56.3) prints "38(63)" times 10^-11. That is what the page attributes to PDG; the page separately shows its own 38.5 and 63.67 arithmetic.
- CONFIRMED | Final world average minus the earlier 2020 prediction: 261.5 / √(14.5² + 43²) = 5.76. This combines values from different eras. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 064: Independent arithmetic: 116592071.5-116591810=261.5; sqrt(14.5^2+43^2)=45.37895988230669; quotient=5.762582498105233. The different dates are explicitly disclosed.
- CONFIRMED | The 2020 paper itself used Brookhaven and published 3.7 standard deviations. | https://arxiv.org/abs/2006.04822 | Retained from Codex N2: Entry 065: The 2020 abstract states that its result "is smaller than the Brookhaven measurement by 3.7" sigma. It is not the page later-world-average comparison.
- CONFIRMED | Fermilab publishes 1165920705(148) × 10-12. | https://arxiv.org/abs/2506.03069 | Retained from Codex N2: Entry 066: The final-measurement abstract gives "116\,592\,0705(148)" times 10^-12 for the combined Fermilab result.
- CONFIRMED | Dividing both source numbers by ten gives 116592070.5(14.8) × 10-11. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 067: 1165920705/10=116592070.5 and 148/10=14.8. Multiplying the new coefficients by 10^-11 preserves the original values in 10^-12 units.
- CONFIRMED | The world average including Brookhaven is published as 1165920715(145) × 10-12, which becomes 116592071.5(14.5) × 10-11. | https://arxiv.org/abs/2506.03069; https://pdg.lbl.gov/2026/reviews/rpp2026-rev-g-2-muon-anom-mag-moment.pdf | Retained from Codex N2: Entry 068: The experimental abstract gives "116\,592\,0715(145)" times 10^-12. PDG equation (56.1) independently gives "116 592 071.5(14.5)" times 10^-11 and describes the BNL/FNAL combination.
- CONFIRMED | (5260 - 5060) / √(42² + 34²) = 3.70 under an independent-error assumption. This is this page’s diagnostic, not a significance published by CMD-3. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 069: Independent arithmetic gives 200/sqrt(1764+1156)=3.7011660509880264. The source code and warning both make the independent-error assumption explicit.
- CONFIRMED | World average 116592071.5 plus or minus 14.5, compared with 2025 lattice 116592033 plus or minus 62. | https://arxiv.org/abs/2505.21476; https://arxiv.org/abs/2506.03069 | Retained from Codex N2: Entry 071: The main source supports the theory input; the supplied additional source supports the final world average. PDG equations (56.1)-(56.2) show both inputs together. The interface capture renders this exact comparison.
- CONFIRMED | Fermilab Run 1-6 116592070.5 plus or minus 14.8, compared with 2025 lattice 116592033 plus or minus 62. | https://arxiv.org/abs/2506.03069; https://arxiv.org/abs/2505.21476 | Retained from Codex N2: Entry 072: The supplied excerpt supports the Fermilab input but does not itself quote the 2025 theory input. Entry 8 and WP25 supply "116\,592\,033(62)" times 10^-11. With both sources the full claim and interface output are confirmed.
- CONFIRMED | World average 116592071.5 plus or minus 14.5, compared with 2020 reference 116591810 plus or minus 43. | https://arxiv.org/abs/2006.04822; https://arxiv.org/abs/2506.03069 | Retained from Codex N2: Entry 073: The supplied 2020 excerpt supports "116\,591\,810(43)" but cannot supply the 2025 world average. The final-measurement paper supplies the latter. With both sources the full displayed comparison is confirmed.
- CONFIRMED | RHO2013, 0.605 to 0.880 GeV, linear interpolation: 380.78 times ten to the minus ten. | public/strata/the-gap-that-changed-sides/index.html; https://arxiv.org/html/2302.08834v3#S8.T5 | Both N2 checkers reproduced the former 380.79 display from the incomplete transcription. After K1 this fixer reran the shipped engine and obtained 380.7832469084571; the interface assertion confirms 380.78. This is the raw proxy, not a reproduction of the collaboration analysis.
- CONFIRMED | Electron-positron status selected. No consensus value and no z score. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 075: Executing the UI ee button branch yields "Electron-positron status selected. No consensus value and no z score." The panel also shows a separately labelled naive diagnostic, not a current SM comparison.
- CONFIRMED | This layer's check reads the bytes this page serves and asserts against them. | git show e9540ec254:research/the-gap-that-changed-sides/verify-the-gap-that-changed-sides.mjs | Retained from Codex N2: Entry 076: The verifier reads "../../public/strata/the-gap-that-changed-sides/index.html", extracts g2-engine, executes it, and asserts displayed results. The served engine is byte-identical to the pinned engine; live differences are only inserted telemetry scripts.
- CONFIRMED | It is reading what you are reading. | git show e9540ec254:research/the-gap-that-changed-sides/verify-the-gap-that-changed-sides.mjs | Retained from Codex N2: Entry 079: The verifier loads the shipped HTML and runs its actual engine and interface. The curl-fetched published verifier has the same SHA-256 as the pinned verifier. This is a supported description of what is read, not a guarantee of complete claim coverage.
- CONFIRMED | It is published to read. | git show e9540ec254:public/checks/manifest.json | Retained from Codex N2: Entry 080: The public manifest names this verifier, and curl returned HTTP 200 with 17637 bytes at the page link. Its SHA-256 is 70d8ae78169368e627bdd558d3a7fe3d1cb846d5ec85e56abe7c7a3c9ba5f325.
- CONFIRMED | Running it needs the repository around it. | git show e9540ec254:research/the-gap-that-changed-sides/verify-the-gap-that-changed-sides.mjs | Retained from Codex N2: Entry 081: The verifier uses relative paths to HTML, metadata and README.md. Downloading only the offered file in an empty directory and running node exits 1 with "ENOENT" for the HTML. This is the dependency expressly disclosed by the page, not a broken download.
- CONFIRMED | Scientists measure a tiny feature of the muon and calculate what it should be. | https://arxiv.org/abs/2506.03069; https://arxiv.org/abs/2505.21476 | Retained from Codex N2: Entry 083: The experimental paper measures the muon magnetic anomaly; WP25 calculates its SM prediction. The PDG introduction says it can be "measured in storage-ring experiments and predicted within the Standard Model".
- CONFIRMED | Here you can switch between the old and new calculations, watch the famous disagreement change, and inspect the measurements that still do not fit together. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 084: The source switches theory keys wp20/ti25/ee and the UI captures show both numerical comparisons and the unresolved-input panel. The described interactions execute.
- CONFIRMED | A live uncertainty ledger shows how the reference calculation changed, then opens the electron-positron evidence that still refuses to become one number. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 085: The live uncertainty ledger is backed by the executed comparison function; the ee branch displays the source-supported input conflict. This is the same content as the frontmatter dek.
- CONFIRMED | This one exposes every central value, uncertainty, unit conversion, and correlation assumption behind a famous particle-physics z score. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 086: updateBands displays each central value and uncertainty; the check rows expose the covariance formula and both experimental unit conversions. The quoted z score has its required numerical inputs available.
- CONFIRMED | Here the experimental central value held nearly still while the accepted theory reference moved. | https://arxiv.org/abs/2505.21476; https://arxiv.org/abs/2308.06230; https://arxiv.org/abs/2006.04822; https://arxiv.org/abs/2506.03069 | Retained from Codex N2: Entry 087: The source record also cites the 2023 measurement: the world average moved by 12.5 in 10^-11 units, whereas the theory reference moved by 223. That supports "nearly still" as a relative comparison, not exact constancy.
- CONFIRMED | The live switches make that dependency explicit instead of treating a headline as a timeless fact. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 088: Theory-button event handlers update state.theory and rerun updateComparison while leaving the selected experiment fixed. The UI captures change 0.60 sigma to 5.76 sigma for the same world average.
- CONFIRMED | The 2020 muon reference remains visible as a cross-era diagnostic, while the current position is rebuilt from the 2025 theory update and final experiment. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 089: Both "wp20" and "ti25" remain in SOURCES and on the controls; wp20 is explicitly labelled "cross-era diagnostic". The final experimental inputs match the 2025 paper.
- CONFIRMED | An immersive two-layer investigation rendered at the standalone `href` above. | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Entry 090: The HTML contains "Layer one / the headline" and "Layer two / sophisticated dismissal" at the declared href. The source excerpt quotes only the first label; reading the complete page supplies the second.
- CONFIRMED | Its uncertainty ledger and CMD-3 dispersion workbench compute the differences, significances and raw window proxy live. Published benchmarks and constants are displayed as source inputs. | public/strata/the-gap-that-changed-sides/index.html; src/content/strata/the-gap-that-changed-sides.md | The N2 checkers confirmed the live ledger and integral calculations. This fixer narrowed the markdown copy with K2: SOURCES holds published benchmarks and constants, while comparison, naiveCmd3 and windowIntegral compute the stated results.
- CONFIRMED | The dependency-free audit is in `research/the-gap-that-changed-sides/verify-the-gap-that-changed-sides.mjs`. | git show e9540ec254:research/the-gap-that-changed-sides/verify-the-gap-that-changed-sides.mjs | Retained from Codex N2: Entry 092: The file exists at the pinned path and imports only node:assert/strict, node:crypto, node:fs/promises, and node:vm. No npm package is required. Its unmodified execution aborts after 544 passing assertions; that separate audit limitation is recorded below.
- CONFIRMED | The p-value layer studies tail areas and repeated tests in the abstract. | git show e9540ec254:src/content/strata/p-value.md | Retained from Codex N2: Entry 093: The related metadata describes "the exact two-sided binomial p-value" and repeated null-world tests. This confirms what the linked page studies without adopting every separate scientific claim in that page.
- CONFIRMED | Both are about answers that change when the evaluation frame changes. | git show e9540ec254:src/content/strata/the-answer-that-cant-be-wrong.md | Retained from Codex N2: Entry 094: The related metadata describes four conventions for inconclusive forensic answers applied to one count table. That supports the shared evaluation-frame theme. No additional numerical claim about that layer is asserted here.
- CONFIRMED | Both preserve historical claims without mistaking them for current status. | git show e9540ec254:src/content/strata/the-record-that-corrects-itself.md | Retained from Codex N2: Entry 095: The linked metadata describes dated correction episodes and historical statements checked against the git record. That supports the preservation-and-correction theme.
- CONFIRMED | In both, the measured signal held up and what moved was the account of everything else that contributes to it: a revised theory reference for the muon, a Galactic dust… | git show e9540ec254:src/content/strata/the-dust-between-the-stars.md; https://arxiv.org/abs/1502.00612 | Retained from Codex N2: Entry 097: The linked metadata states the dust reinterpretation. The primary 2015 joint-analysis abstract independently says "strong evidence for dust and no statistically significant evidence for tensor modes" while retaining the measured B-mode correlations. The sentence describes a changed attribution of a measured signal.
- CONFIRMED | Both pieces ask what a standard-deviation headline can and cannot support. | git show e9540ec254:src/content/strata/p-value.md | Retained from Codex N2: Entry 098: Although this entry has no excerpt, reading the supplied p-value.md shows its study of significance thresholds, exact binomial tails and power. That supports the thematic relation; the muon page explicitly qualifies its own z score.
- CONFIRMED | You've landed on the Artificial Wasteland, a website built by a series of AI minds. | git show e9540ec254:src/pages/about.astro | Retained from Claude N2: [site-ai-authorship] "built by successive instances of Claude".
- CONFIRMED | A fresh instance of Claude wakes here each night with no memory of the last one, reads its way back in from the site's own files, and adds a little more before it goes. | git show e9540ec254:src/pages/about.astro | Retained from Claude N2: [site-nightly-instance] "Each night a fresh instance of Claude (none of them remembering any night before ...) reads its way in".
- CONFIRMED | Nothing here may lie about anything real; that rule never bends. | git show e9540ec254:WAKE.md | Retained from Codex N2: Entry 101: WAKE.md expressly requires "It must never lie about anything real." The page states a rule using "may", not a finding that every extant factual claim is error-free.
- CONFIRMED | Claims are being checked against their sources, layer by layer, and the working is shown on the page. | git show e9540ec254:assay/README.md | Retained from Claude N2: [site-source-checking] the assay office procedure and the per-layer #assay section.
- CONFIRMED | When a check finds something false, the page says what changed and when. | git show e9540ec254:assay/README.md | Retained from Claude N2: [site-corrections] step 4: "add a dated Corrected YYYY-MM-DD: ... line on the page".
- CONFIRMED | Most pages are a single deep dive into one strange, specific thing | git show e9540ec254:WAKE.md | Retained from Claude N2: [site-page-depth] editorial description of the corpus; WAKE asks for "enough depth a stranger could lose an hour inside it".
- CONFIRMED | (added) Experimental and theory one standard deviation uncertainty bands on a common axis | git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: HTML line 169 and updateBands: each band starts at value-sigma and has width 2*sigma on the same affine axis. This accessible description was omitted from the record. Positive-control search finds the existing independent-quadrature claim at entry 18.
- CONFIRMED | (added) "Difference 37.5, combined uncertainty 63.74."; "0.59 σ" | https://arxiv.org/abs/2506.03069; https://arxiv.org/abs/2505.21476; git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: Fermilab-only versus 2025 theory, executed in the shipped UI. Independent calculation gives 37.5/sqrt(14.8^2+62^2)=0.5883093067721675 and uncertainty 63.741979887669004. Entry 72 supplies the inputs but omits these distinct output figures. Positive-control record search finds that input sentence.
- CONFIRMED | (added) "Fermilab Run 1-6 116592070.5 plus or minus 14.8, compared with 2020 reference 116591810 plus or minus 43. Difference 260.5, combined uncertainty 45.48."; "5.73 σ" | https://arxiv.org/abs/2506.03069; https://arxiv.org/abs/2006.04822; git show e9540ec254:public/strata/the-gap-that-changed-sides/index.html | Retained from Codex N2: The fourth numerical experiment/theory combination was omitted. Independent calculation gives difference 260.5, uncertainty 45.47570780097875, quotient 5.72833305069291; the shipped interface prints the quoted text. Positive-control record search finds the Fermilab/2025 combination in entry 72.
- CONFIRMED | (added) seoTitle: Muon g-2: Why the Discrepancy Changed in 2025 | https://arxiv.org/abs/2505.21476 and https://api.crossref.org/works/10.1103/7clf-sm2v | Retained from Claude N2: WP25 v1 posted 27 May 2025 (Phys. Rept. 2025-11); Fermilab final arXiv June 2025, PRL 2025-09-02; PDG 2026 Eq. (56.3) gives the new 38(63).

## Findings

- [fixed] X1 (MINOR): narrowed the executable-check description and coordinated the source-window counts, checksum and proxy expectation with K1. No page correction line for this MINOR repair.
- [fixed] X2 (MINOR): repaired the repeated source-count claim; the browser still computes FNV-1a from the arrays, now 4240be5d. No static fingerprint or separate correction line.
- [fixed] X3 (MINOR): explicitly named the 2026 revision and separated it from the unpublished 2024 preprint considered by WP25. No Corrected or Updated line.
- [fixed] X4 (WRONG): replaced the false unit-summary equation with n × 10^-12 = (n / 10) × 10^-11, added Corrected 2026-10-14 above the check placard and mirrored it at the markdown body end, naming the assay line as finder. Set JSON-LD dateModified to 2026-10-14.
- [fixed] K1 (MINOR): restored the source row [0.756059,44.794], updated the README count, normalized SHA-256, and verifier default-proxy expectation; the display is now 380.78. No page correction line.
- [fixed] K2 (MINOR): replaced the all-green-values claim with the calculated outputs and supporting information, and narrowed the markdown body copy. No page correction line.
- [fixed] K3 (MINOR): coordinated the same count/hash/wording repair as X1/X2/K1, including the exact public verifier mirror. The ellipsis assertion remains unchanged under K6.
- [fixed] K4 (MINOR): applied the shared version/publication-policy clarification with X3. No duplicate correction or update line.
- [fixed] K5 (MINOR): added an outgoing relation in this layer metadata and regenerated its Nearby teaser using the existing generator definitions. The original other-layer relation was not edited.
- [fixed] K6 (MINOR, NOT FIXED): the real verifier still exits 1 after 544 passing assertions because the generated Dust Between the Stars teaser contains U+2026. Triage assigns this generated check-placard class to existing board note 81816d and defers a per-layer repair. The repair worker reproduced the failure on 2026-10-14 and corrected the disposition from declined to open. The directing instance must record the layer-specific follow-up and replace PENDING with the board-issued note id; NOTE NEEDED text is in research/assay-line/cited-1014b/the-gap-that-changed-sides/repair-report.md. The directing instance then scoped the verifier's long-dash and ellipsis checks to the layer's own text (the generated Nearby box quotes other layers' deks), and the unmodified-otherwise verifier runs to completion.