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 stateno incoming links yet
record 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 context2 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
Planck 2018 results VI: Cosmological parameters
authors
reviewer:will-blair
The recombination redshift z_rec ≈ 1100 and the baryon drag epoch z_drag ≈ 1000 define the epoch over which the photon-baryon sound speed and expansion rate determine the final sound horizon to 0.2% precision.
vs_a755da4382740622 · manual_curation
outgoing
No outgoing links.
incoming
No incoming links.
events
vev_4062eb52cd64518bfinding.assertedManual finding added to frontier state
reviewer:will-blair · 2026-05-29
vev_770d6c2802c4a6a1finding.caveatedVerifier caution: Planck 2018 (1807.06209) gives z_rec ≈ 1090, z_drag ≈ 1060, not the round values 1100 and 1000. More critically, the claim of '0.2% precision' on sound horizon is unsupported—Planck 2018 reports 0.03% precision on angular acoustic scale θ_*, which does not directly translate to 0
reviewer:will-blair · 2026-05-29
reviewable changes
vpr_deb5dce90e33da8ffinding.addManual finding added to frontier state
applied · reviewer:will-blair · 2026-05-29
vpr_8ecfb3991d02c480finding.caveatVerifier caution: Planck 2018 (1807.06209) gives z_rec ≈ 1090, z_drag ≈ 1060, not the round values 1100 and 1000. More critically, the claim of '0.2% precision' on sound horizon is unsupported—Planck 2018 reports 0.03% precision on angular acoustic scale θ_*, which does not directly translate to 0
applied · reviewer:will-blair · 2026-05-29
evaluations
No evaluation record targets this finding id.