33.57 turns proton elastic scattering into an outer-rim translation court: after preregistered radiative corrections, normalization, uncertainty handling, smooth-baseline subtraction, dual extraction routes, and dual inversion families, intermediate-momentum-transfer data must yield reproducible residual shoulders, kinks, or weak oscillations and consistent positive-direction Re / Se annulus indicators with stable ring radius and width across routes, datasets, and holdouts, while pseudo-data, truncation, and systematics-perturbation nulls stay weaker; under V02/V08/V09-compatible translation, “enhanced outer rim” remains only a mid-field form-factor residual / inversion-readout ledger rather than a proton geometry ontology verdict.
Use this section as a compact machine-readable EFT reference.
33.57 asks proton elastic scattering to pass a readout-layer court. The admissible claim is not that any inversion image with an outer-looking feature names a new proton geometry, but that preregistered form-factor residuals and spatial reconstructions keep pointing to the same outer-edge direction under multiple routes and datasets.
Measurement begins with the electric and magnetic form factors and carries full covariance through the pipeline. Residual-level observables then score shoulder or kink location, slope-change direction and significance, and any weak oscillatory phase consistency, while inversion outputs quantify the edge-ring enhancement index Re, the edge slope-break index Se, and the stability of ring radius and width across methods and datasets.
The conclusion is protected against post-hoc shape tuning. Momentum-transfer intervals, exclusions, normalization rules, and systematics models are frozen in advance; two independent extraction routes and two inversion families run in parallel; and dataset labels, energy-bin labels, or normalization constants stay blinded during fitting and inversion. A held-out data segment or momentum range remains unavailable for choosing the main annulus location.
Null pressure must show that the annulus is not a pipeline artifact. Smooth single-hump pseudo-data with matched sampling and errors must fail to generate a stable outer annulus, reversible truncations of the momentum-transfer range may not arbitrarily flip the direction of the feature, and small perturbations to radiative corrections, normalization, or two-photon-exchange treatments may not reverse the verdict if the effect is real.
Support requires reproducible residual structure across at least two datasets or extraction routes, consistent non-zero Re and Se with convergent ring radius and width across inversion families, and holdouts plus null tests that fail to build the same annulus. Falsification follows from a stably monotonic profile, route-dependent drifting residual structure, or nulls that produce comparable annulus strength. The named adversaries are finite momentum coverage, radiative-correction and two-photon uncertainties, and covariance or normalization handling errors.
So the chapter closes only one translated proton mid-field annulus ledger aligned with the existing interface lane. “Enhanced outer rim” may survive as a residual and inversion readout term, but not as a proton-geometry ontology. Its clean onward value is to hand a method-disciplined annulus grammar to 33.58–33.59.