---
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  "path": "/en/research/archive",
  "title": "Historical material and superseded claims",
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      "label": "Current electron and proton candidate articles / 现行电子与质子候选专题",
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      "url": "/en/theory/matter/electron"
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    {
      "label": "Current FCC-like model / 现行 FCC-like 候选模型",
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      "url": "/en/theory/space-dynamics/fcc-model"
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## Material not to cite as established results

This page records citation limits for earlier claims and simplified statements. It does not classify every unproved research direction as abandoned. Withdrawing the assertion that a structure has been rigorously proved does not end research on that candidate. The historical and discontinued labels here concern how the following old conclusions are used; they do not replace the status of current topic pages.

An electron 2π or proton 6π picture cannot, on the basis of schematic winding alone, be presented as a completed three-dimensional topological classification, a stable field solution or an independent derivation of particle properties. The current [electron candidate](/en/theory/matter/electron) and [proton candidate](/en/theory/matter/proton) retain these constructions, defining the angles, boundaries, conditional relations and unsolved parts. Both remain candidate models. The overstrong assertion of a proved particle solution is archived; the candidate research has not thereby been discontinued as a whole.

Matching a g factor by adjusting independently undetermined parameters is not an independent calculation of that constant. A strong radar difference without an apparatus model is likewise not a completed quantitative discriminator. Inputs, configurations and missing mappings must remain explicit; numerical agreement or a schematic propagation diagram cannot replace them. This page records no new withdrawal date, approval decision or experimental result.

## Simplifications requiring correction

The phrase “spatial lattice sites have no inertia” cannot replace definitions of coefficients in a field action. Current [continuum dynamics](/en/theory/space-dynamics/continuum-dynamics) distinguishes matter inertia, spatial-state variables and field-equation normalization coefficients. A summary phrase alone cannot add or remove dynamical terms. In an ordinary elastic model, K = G does not directly ensure equal longitudinal and transverse speeds; the projected coefficients and model conditions are explained in [wave propagation](/en/theory/space-dynamics/wave-propagation).

The [FCC-like model](/en/theory/space-dynamics/fcc-model) remains a candidate microscopic realization. Retiring claims that geometry alone proves wave speeds, particle spectra or stability does not invalidate conditional discrete calculations with stated connection laws, or classify all continuum space dynamics as discontinued.

## Using historical material

Research mode may examine why an old claim needs correction or compare its premises with a current construction. A citation must retain its historical identity and consult the relevant current topic. It must neither repackage an old conclusion as an established formal result nor transfer its discontinued label to ongoing candidates. Complete earlier-version files have not been imported into this website; this page therefore supplies no unverified withdrawal commit or manuscript download.