source boundary
frontier-owneddeclared
A source record is provenance. It supports a finding only through evidence atoms, extraction spans, and reviewed finding bundles.
frontiers / frontier
Source record
back to sourcessource boundary
frontier-ownedA source record is provenance. It supports a finding only through evidence atoms, extraction spans, and reviewed finding bundles.
finding bindings
record contextFindings bound to this source through source ids, evidence atoms, provenance, or reviewed source-record slots.
evidence atoms
materializedEvidence atoms pin exact spans, measurements, selectors, or curation assertions to the source.
review context
inspectable1 reviewable changes and 0 evaluations are attached through this source or its findings.
Locator and citation
external sourcelocator
title:arXiv 2403.02256
imported
2026-05-29T02:16:30.991232+00:00
extraction mode
manual_curation
authors
reviewer:will-blair
Caveats
No source-specific caveats are recorded.
Fine-structure constant variations at recombination face stringent local observational constraints (Δα/α < 5×10⁻⁴ at 95% CL for non-fine-tuned scalar field models) that conflict with CMB-inferred variations needed to resolve Hubble tension, rendering this mechanism generally astrophysically problematic despite theoretical interest.
events
vev_831fb09a8539dcb8finding.assertedManual finding added to frontier state
reviewer:will-blair · 2026-05-29
reviewable changes
vpr_867b753076ee6960finding.addManual finding added to frontier state
applied · reviewer:will-blair · 2026-05-29
evaluations
No evaluation rows are attached.