record state
frontier-ownedReview status
This finding is part of accepted frontier state. Review events, reviewable changes, and proof state explain how it can change.
unreviewed
frontiers / frontier
Finding bundle
back to staterecord state
frontier-ownedThis finding is part of accepted frontier state. Review events, reviewable changes, and proof state explain how it can change.
finding statement
finding typeNo entity list is declared.
evidence
source-boundtheoretical · manual state transition
proof impact
packet context1 reviewable changes and 0 evaluation records are attached to this finding id.
Evidence and conditions
method
manual state transition
evidence type
theoretical
conditions
Provenance
source title
Sound horizon scale at the baryon drag epoch studies
authors
reviewer:will-blair
The baryon drag epoch (z_drag ≈ 1000 in ΛCDM) marks the transition when baryons decouple from Compton drag, and the sound horizon at this moment is robustly calculable from first-principles using the Friedmann equations.
vs_4f484b3d414a3c87 · manual_curation
outgoing
vf_5b21ad388ff6abbbτ (optical depth) introduces a small degeneracy with rs in parameter fitting; tighter τ measurement helps break rs degeneracies
events
vev_083faa98118e6034finding.assertedManual finding added to frontier state
reviewer:will-blair · 2026-05-29
reviewable changes
vpr_8eeb0998594dd8e6finding.addManual finding added to frontier state
applied · reviewer:will-blair · 2026-05-29
evaluations
No evaluation record targets this finding id.