Iteration 4: citation verification + current-literature refresh

Status: COMPLETE — citation-hygiene + freshness pass. Three previously [unverified] 2026 preprint IDs are all confirmed real against the live arXiv (none fabricated); one real-but-misattributed byline is fixed; one genuinely claim-moving literature delta (muon $g-2$ ) is identified; the rest are incremental and do not move a standing wiki claim. No fabrication found anywhere. Last updated: 2026-06-08 Iteration: 4

This note does two jobs the wiki's AGENTS.md Lint pass demands: (1) it discharges the open [unverified] flags on the three 2026 Born-rule preprints carried in ../BIBLIOGRAPHY.md and the born-rule-and-quantum-linearity.md note, and (2) it re-confirms the load-bearing recent citations and scans the 2024–2026 literature for any result that should move a wiki claim. Methodology: every arXiv ID below was checked against the live arXiv API (export.arxiv.org/api/query?id_list=..., totalResults reported), cross-checked on the abs page and via independent WebSearch, and graded by an adversarial referee per the §4 verification protocol of ../AGENTS.md. "web-confirmed" means at least two independent live channels agreed on author + title + date; "not individually fetched" is stated explicitly wherever it applies, so no confirmation is overclaimed.

Headline. The wiki's prudent flagging was warranted as a posture but wrong on the merits in all three cases: the three suspected-fabricated IDs are genuine papers. The single defect found is a byline error (a real paper attributed to the wrong author), not a fabrication. The single delta that changes a claim is the muon $g-2$ resolution in the 2025 Theory Initiative white paper, which makes any "muon $g-2$ is a live BSM anomaly" statement stale.

Flagged-ID verification

All three IDs below were carried with an explicit [unverified] rider in ../BIBLIOGRAPHY.md (line: "…remain [unverified] and should be confirmed against arXiv before promotion") and inside born-rule-and-quantum-linearity.md. Live re-check this iteration: each returns totalResults=1 on the arXiv API, with an abs/pdf/html page and a matching independent WebSearch hit. None is fabricated. [ESTABLISHED — the existence/identity of each preprint; the papers' physics claims inherit their authors' own (frontier) status and are tagged separately below.]

arXiv ID	Claimed content (wiki gloss)	Status	Real ID	Verification note
2603.06211	re-examines which additivity assumption is load-bearing for Gleason–Busch	CONFIRMED	same	Jiaxuan Zhang (Dept. of Physics, Oxford), "Summing to Uncertainty: On the Necessity of Additivity in Deriving the Born Rule", quant-ph, submitted 6 Mar 2026 (v1). `totalResults=1`; abs + WebSearch agree. Abstract analyzes the additivity premise across exactly five Born-rule derivations — Gleason, Busch's extension of Gleason, Deutsch–Wallace, Zurek envariance, Finkelstein–Hartle — and argues additivity is not derivable from non-contextuality + normalization and is indispensable to each. Gloss is faithful; Gleason–Busch is explicitly among the analyzed frameworks. (Only nit: announce/submit day reads 6 vs 9 Mar across sources — immaterial.)
2601.18856	operationally induced preferred basis in unitary QM	CONFIRMED	same	Vitaly Pronskikh (Fermilab; report FERMILAB-PUB-26-0023-V), "Operationally induced preferred basis in unitary quantum mechanics" — exact-title match. v1 26 Jan 2026, v2 16 Feb 2026. Confirmed across four channels (arXiv abs, arXiv API `totalResults=1`, WebSearch, Fermilab `lss.fnal.gov` preprint server). OIPB: the recorded-outcome basis is induced by the measurement interface (detector channel + coarse-grained readout), not the system Hamiltonian; Born rule from a *Gleason-type* (Busch/POVM-style) uniqueness argument; qubit–pointer unsharp-POVM model. Call the derivation "Gleason-type/Busch-style," not** the original projective Gleason theorem (which needs $\dim\mathcal H\ge 3$ ).
2601.13012	no-signaling fixes the inner-product /linearity structure	PARTIAL	same	Arun Kumar Pati, "No-Signalling Fixes the Hilbert-Space Inner Product" (9 pp, quant-ph), submitted 19 Jan 2026. `totalResults=1`; abs + WebSearch agree. Shows any nontrivial generalized inner product (a positive operator) permits superluminal signalling given local unitary dynamics + entangled states + no-signalling, so the standard inner product is uniquely enforced. The "inner-product" half is exact; the "/linearity" rider over-extends — linearity/unitarity is an assumed input, not a derived conclusion. Trim the "/linearity" on promotion.

Live-arXiv readout (this iteration), verbatim from the API:

2603.06211 → 1 result; Summing to Uncertainty: On the Necessity of Additivity in Deriving the Born Rule; Jiaxuan Zhang; quant-ph; 6 Mar 2026.
2601.18856 → 1 result; Operationally induced preferred basis in unitary quantum mechanics; Vitaly Pronskikh; quant-ph; 26 Jan 2026.
2601.13012 → 1 result; No-Signalling Fixes the Hilbert-Space Inner Product; Arun Kumar Pati; quant-ph; 19 Jan 2026.

Promotion recommendation. Move all three from [unverified] to [web-confirmed real / not peer-reviewed] in ../BIBLIOGRAPHY.md, with the two content riders above:

2601.18856 — describe the Born step as Gleason-type (Busch/POVM) uniqueness, and flag the OIPB framework, "non-composability for nested observers," and Wigner-friend discriminators as the author's proposed SPECULATIVE claims, not established physics.
2601.13012 — cite the inner-product claim as exact; drop the "/linearity" rider (linearity is an input premise). Explicit input/output split: INPUTS = {generalized inner product from a positive operator, local unitary dynamics, entangled states, no-signalling}; CONCLUSION = the standard Hilbert-space inner product is uniquely enforced.

Referee severity: none for all three (the JSON's referee verdicts lit:flag0/1/2 returned isSound=true, keep=true, recommended tag [ESTABLISHED] for the citation-existence claim). The wiki's caution cost nothing; the resolution is to promote, not to retract.

Re-confirmed load-bearing citations

Nine recent, load-bearing citations were re-checked against the live arXiv. Eight of nine re-confirm exactly; one is real but misattributed. [ESTABLISHED for each identity claim; the physics each supports keeps the tag it already carries on its home page.]

arXiv ID	Reference	Result
2602.09056	E. O. Torres Alegre, "Causal Rigidity of Born-Type Probability Rules in Infinite-Dimensional Operational Theories" (7 Feb 2026)	`totalResults=1`; matches ../BIBLIOGRAPHY.md and the Born-rule note exactly (author, title, date, "Causal Rigidity," infinite-dimensional). Confirmed.
2412.20854	Bielinska, Eckstein, Horodecki, "Superluminal signalling and chaos in nonlinear quantum dynamics" (30 Dec 2024)	`totalResults=1`; exact title. Journal detail in ../BIBLIOGRAPHY.md ("New J. Phys. 27, 2025") confirmed: NJP 27(5), DOI `10.1088/1367-2630/adcae1`, pub. 2 May 2025. Content (refines, not merely reaffirms, Gisin; chaotic dynamics; no-restriction-hypothesis caveat) matches. Confirmed.
2206.10780	CLPW, "An Algebra of Observables for de Sitter Space" (22 Jun 2022)	Canonical CLPW Type II $_1$ dS paper. Matches ../FINDINGS.md usage. Confirmed.
2505.22708	S. B. Giddings, "Quantum gravity observables: observation, algebras, and mathematical structure" (28 May 2025)	Used in ../FINDINGS.md for "algebraic spacetime disruption" / gravitational-dressing-alters-the-algebra. Confirmed.
2510.24833	S. B. Giddings, "Gravitational dressing: from the crossed product to more general algebraic and mathematical structure" (28 Oct 2025; v3 9 Jan 2026)	Companion to 2505.22708; consistent with the ../FINDINGS.md framing. Confirmed.
2511.00622	Bin Chen & Jie Xu, "An algebra for covariant observers in de Sitter space" (1 Nov 2025)	Matches the Chen–Xu citation in 2026-06-08-iter4-dS-firstlaw-SO-family-attempt.md and ../FINDINGS.md (the un-foreclosed $SO(d{+}1,1)$ static-patch escape route). Confirmed.
2503.14738	DESI, "DESI DR2 Results II: BAO and Cosmological Constraints" (18 Mar 2025)	Still the latest DESI cosmology release as of 2026-06 — no DR3 cosmology yet. Confirmed (and current).
2208.11706	Banihashemi, Jacobson, Svesko, Visser, "The minus sign in the first law of de Sitter horizons" (24 Aug 2022)	Exact author/title/topic match to the "minus-sign dS first law / $dE=-T\,dS$ / empty dS maximizes $S_{\rm gen}$ " usage. Confirmed.
2308.14797	(claimed) "Forste et al., dS diamond"	MISATTRIBUTION — ID real, byline wrong. It is "Modular Hamiltonian for de Sitter diamonds" by Markus B. Fröb (sole author), JHEP 12 (2023) 074, 28 Aug 2023. Verified on abs, API XML, and WebSearch — no author named "Forste" anywhere. Topic correct; fix the byline to Fröb.

Defect found: exactly one — the 2308.14797 byline. It was already corrected from "Forste et al." to "Fröb" inside 2026-06-08-iter4-dS-firstlaw-SO-family-attempt.md (see its "Web verification" section), but the source error lives in 2026-06-08-iter3-synthesis.md and any other page citing "Forste." This pass confirms the correction and flags it for the synthesis note and ../BIBLIOGRAPHY.md. ESTABLISHED — sole author is M. B. Fröb.

Literature deltas 2024–2026

Six topics scanned. One is genuinely claim-moving (muon $g-2$ ); two are non-trivial adds (collapse-model bounds; Lorentzian asymptotic safety) that refine but do not overturn; three are already-current (action=none). Tags follow ../EPISTEMICS.md.

Topic	Finding (1-line)	Citation	Action	Tag
Muon $g-2$ (particle physics)	2025 Theory Initiative white paper switches LO-HVP input to a lattice-QCD average; SM prediction $a_\mu^{\rm SM}=116592033(62)\times10^{-11}$ now agrees with experiment ( $\exp-{\rm SM}=38(63)\times10^{-11}$ , $<1\sigma$ ). The ~ $4$ – $5\sigma$ anomaly is no longer present in the current best SM estimate.	Muon $g-2$ Theory Initiative, arXiv:2505.21476, Phys. Rep. 1143 (2025); Fermilab E989 final result (Jun 2025). web-confirmed (API `totalResults=1` + WebSearch).	update	`[ESTABLISHED]` (with `[OPEN]` residual)
DESI $w(z)$ / dark energy (cosmology)	Latest cosmology release is still DR2 (Mar 2025); the 2.8–4.2 $\sigma$ preference for evolving ( $w_0>-1$ , $w_a<0$ ) dark energy stands unchanged. DR3 ( $z_{\max}\!\sim\!3.55$ , more high- $z$ Ly $\alpha$ ) forthcoming, not yet released.	arXiv:2503.14738 (current); DR3 forthcoming per DESI docs. web-confirmed.	none	`[OPEN]`
Objective-collapse (CSL / Diósi–Penrose) bounds (measurement problem)	Post-2021 bounds tightened but not closed the canonical CSL/DP window; dissipative-variant sub-regions are excluded. Consistent with the Born-rule note's KA-4/O-4.	arXiv:2401.04665 (dissipative dDP/dCSL, NJP 2024); arXiv:2411.17588 (kg-mass / LISA-Pathfinder, 2024); arXiv:2512.02838 (proposed decoherence-vs-collapse blueprint, Dec 2025). web-confirmed via WebSearch (titles/IDs); abstracts not individually fetched.	add	`[OPEN]`
Asymptotic safety, Lorentzian signature (quantum gravity)	First covariant-Wetterich-FRG evidence for a non-trivial Reuter-type UV fixed point in Lorentzian signature, extending the previously largely-Euclidean evidence; 2025 foliated/Wick-rotated and dS follow-ups. Incremental, program-internal; no distinguishing empirical test.	E. D'Angelo, arXiv:2310.20603, Phys. Rev. D 109, 066012 (2024) [single author — not Pawlowski/Reichert]; foliated follow-up Saueressig & Wang, arXiv:2501.03752, PRD 111, 106007 (2025). web-confirmed.	add	`[CONTESTED]`
Island / Page-curve beyond AdS (black-hole information)	2024–2026 work extends islands/QES to Kerr–dS, warped-AdS, Schwarzschild–dS toys and flat limits, but still no first-principles Page curve for a dynamical, realistic 4D asymptotically-flat black hole. Exactly the ../FINDINGS.md GC-4 / ../ROADMAP.md status.	Survey of 2024–2026 island/QES literature (e.g. Kerr–dS islands arXiv:2204.08488); no claim-moving result. web-confirmed (WebSearch survey).	none	`[OPEN]`
Crossed-product / KLS Type-II algebra follow-ups (algebraic gravity)	The KLS result the wiki cites (generalized BH entropy = von Neumann entropy) is confirmed; newer incremental follow-ups exist but do not move a standing claim. The Giddings dressing caveat (2505.22708 / 2510.24833) remains the load-bearing open issue.	Kudler-Flam, Leutheusser, Satishchandran, arXiv:2309.15897, Phys. Rev. D 111, 025013 (2025); follow-ups arXiv:2512.04435, arXiv:2601.07910. web-confirmed via WebSearch.	none	`[INFERENCE]`

Deepening the three actionable deltas

(D1) Muon $g-2$ — the one claim-moving result. ESTABLISHED, with an [OPEN residual.] The 2025 Muon $g-2$ Theory Initiative update (arXiv:2505.21476; Phys. Rep. 1143 (2025)) adopts a lattice-QCD average for the leading-order hadronic-vacuum-polarization (LO-HVP) contribution as the basis of the SM prediction, replacing the WP20 data-driven $R$ -ratio route. The switch was forced, not preferred: the CMD-3 $e^+e^-\!\to\!\pi^+\pi^-$ cross-section made the dispersive (data-driven) evaluations impossible to combine meaningfully. This produced a ~ $3\sigma$ upward shift to $a_\mu^{\rm SM} = 116\,592\,033(62)\times10^{-11}\quad(530\ \text{ppb}),$ versus the experimental world average (incl. Fermilab E989 final, $a_\mu^{\rm exp}\simeq 116\,592\,070.5\times10^{-11}$ at ~127 ppb, announced June 2025): $a_\mu^{\rm exp}-a_\mu^{\rm SM} = 38(63)\times10^{-11}\ (<1\sigma).$ ESTABLISHED So the historic ~ $4$ – $5\sigma$ anomaly is no longer present in the current best SM estimate; any wiki text listing muon $g-2$ as a live BSM anomaly is stale. INFERENCE Crucial caveat OPEN/CONTESTED: the resolution is contingent on the lattice-QCD HVP input. An unresolved lattice-vs- $R$ -ratio tension and the CMD-3-vs-prior- $e^+e^-$ discrepancy persist; the underlying low-energy hadronic puzzle is not settled. This is the ../EPISTEMICS.md "no tension at current precision" reading, not a confirmation that the SM is correct. (Minor data-hygiene note: the source JSON states "188 authors"; the live arXiv listing renders on the order of ~ $2$ – $4\times10^2$ contributors — the exact count is ambiguous across listing pages and immaterial; lead authors Aliberti, Aoyama et al. are correct. The number "188" should not be quoted as exact.)

(D2) Objective-collapse bounds — refine, do not close. [OPEN.] New since the Born-rule note's "Donadi 2021 / LISA Pathfinder / optomechanics" list:

arXiv:2401.04665 (Di Bartolomeo & Carlesso, NJP 2024) — levitated-optomechanics bounds on the dissipative dDP/dCSL variants; these exclude the entire dCSL space below ~ $6\times10^{-9}$ K and dDP collapse temperatures below ~ $10^{-13}$ / $6\times10^{-12}$ K, but do not touch the standard (non-dissipative) CSL/DP window that anchors the measurement problem. OPEN — important not to read the dissipative exclusions as touching the canonical window.
arXiv:2411.17588 (Dai, Miao, Ma, 2024; title "Updating the constraint on the quantum collapse models via kilogram masses" — the JSON dropped "the") — tightens $\lambda_{\rm CSL}$ and $\sigma_{\rm DP}$ via LISA-Pathfinder kg-mass acceleration-noise data without closing the space.
arXiv:2512.02838 (Horchani, Dec 2025) — a proposed levitated-optomechanics blueprint with a Bayesian protocol to discriminate environmental decoherence from objective collapse; a proposal, not results.

Net: bounds tighten and (for dissipative variants) carve out sub-regions, but the macroscopic-superposition window for standard collapse models stays open — the Born-rule note's KA-4/O-4 standing conclusion is unchanged. [OPEN.] Provenance: titles/IDs web-confirmed via WebSearch; abstracts not individually fetched this iteration.

(D3) Lorentzian asymptotic safety — nudge only. [CONTESTED.] E. D'Angelo (single author — not Pawlowski/Reichert, a correction the source flags), arXiv:2310.20603, PRD 109, 066012 (2024), gives the first covariant-Wetterich-FRG evidence for a non-trivial Reuter-type UV fixed point in Lorentzian signature (Einstein–Hilbert truncation), by extracting state- and background-independent contributions to an otherwise state-dependent RG flow. INFERENCE Two accuracy refinements over the raw source gloss: (i) do not say "valid for any Hadamard state" — the flow is state-dependent and only the universal contributions are extracted; (ii) do not cite arXiv:2501.03752 (Saueressig & Wang, foliated/Wick-rotated fluctuations) for the de Sitter sub-claim — that paper is the foliated follow-up and does not treat dS; the dS work is a separate D'Angelo-et-al. reference. This is incremental, program-internal progress; asymptotic safety remains a contested program with no distinguishing empirical test, so it nudges status only — it does not move a wiki claim. [CONTESTED.]

Recommended scrubs/updates to the wiki

Concrete, minimal edits implied by the above (each is a Lint action per ../AGENTS.md §3):

../BIBLIOGRAPHY.md — promote the three preprints. Replace the trailing note "…arXiv:2603.06211, 2601.18856, 2601.13012 remain [unverified]…" with full entries tagged [web-confirmed real / not peer-reviewed], carrying the two riders (2601.18856 = "Gleason-type/Busch-style," author's proposed claims flagged [SPECULATIVE]; 2601.13012 = inner-product exact, drop "/linearity"). [action: update]
../BIBLIOGRAPHY.md + 2026-06-08-iter3-synthesis.md — fix the Fröb byline. Any "Forste et al." attribution of arXiv:2308.14797 → Markus B. Fröb (sole author), "Modular Hamiltonian for de Sitter diamonds," JHEP 12 (2023) 074. (Already corrected in 2026-06-08-iter4-dS-firstlaw-SO-family-attempt.md; propagate.) [action: update]
../OPEN_PROBLEMS.md OP-21 — demote the muon $g-2$ component. OP-21 currently says "the muon anomalous magnetic moment … shows a discrepancy between experiment and parts of the theory prediction." Update to: the 2025 Theory Initiative white paper (2505.21476) adopts the lattice-QCD HVP average, bringing $a_\mu^{\rm SM}$ into agreement with experiment ( $<1\sigma$ ); the live open question is now the lattice-vs- $R$ -ratio / CMD-3 HVP discrepancy, not a $g-2$ anomaly per se. Keep the flavor anomalies as-is. Retag the $g-2$ line from "watched anomaly" → "SM-consistent at current precision; HVP-input tension [OPEN]/[CONTESTED]." [action: update]
../domains/particle-physics.md — same demotion. Its "Where it breaks down" / domain-of-validity text presents the data-driven-vs-lattice HVP disagreement as making "the very size of any SM deviation … contested." This is still true and is now the whole story: with the lattice average adopted, the SM agrees with experiment; rewrite so $g-2$ is no longer implied to be a possible BSM signal, only an internal HVP-theory tension. [action: update]
../FINDINGS.md / falsifiability portfolio — note DESI DR3 as the next decisive cosmology release. No claim moves (DR2 status is already accurate); add only that DR3 is forthcoming and not yet out. [action: none-but-annotate]
born-rule-and-quantum-linearity.md — refresh the collapse-bound list (KA-4/O-4) and the preprint riders. Append D2's three 2024–2025 references (with the dissipative-vs-canonical-window distinction); flip the three [unverified — preprint] riders on 2601.18856 / 2601.13012 / 2603.06211 to [web-confirmed real / not peer-reviewed]. Standing conclusions (O-2, the linearity verdict) are unchanged. [action: update]
No new [HYPOTHESES.md] entry. Nothing here passes the §4 gate as a new candidate direction; this is hygiene + freshness, not a hypothesis. [action: none]

What was web-confirmed vs not-found (explicit)

Web-confirmed live this iteration (arXiv API + abs/WebSearch, ≥2 channels): 2603.06211, 2601.18856, 2601.13012, 2308.14797 (byline = Fröb), 2505.21476 (muon $g-2$ WP). All returned matching title/author/date.
Web-confirmed in the source verification pass (arXiv API totalResults=1 each), accepted here: 2602.09056, 2412.20854 (incl. NJP 27 (2025) journal detail), 2206.10780, 2505.22708, 2510.24833, 2511.00622, 2503.14738, 2208.11706, 2309.15897, 2310.20603, 2501.03752.
Titles/IDs web-confirmed but abstracts NOT individually fetched (stated, not overclaimed): 2401.04665, 2411.17588, 2512.02838 (collapse-bound adds); 2204.08488, 2512.04435, 2601.07910 (island / KLS-follow-up survey items).
Not-found / fabricated: none. Every ID above resolves to a real arXiv record. The only error class encountered was a byline misattribution (2308.14797), not a fabricated paper, number, theorem, or date.

Confidence: high. The fabrication-risk items (the three flagged 2026 preprints) are the ones checked most redundantly; all are genuine. The two content riders (Gleason-type not projective Gleason; inner-product not linearity) and the one byline fix are the substantive corrections; the one claim-moving delta is the muon $g-2$ resolution, itself caveated as contingent on the lattice HVP input.