# LIB2-207 — SL-04: DESI baseline neutrino-mass-sum upper bound

- class: COMPARATOR · review_state: PUBLISHED · house_tier: not yet assigned
- labels as printed: math_status NOT_PRINTED · attachment NOT_PRINTED · scorecard tier word none (PDF p.80)
- basis: {"pdf_sha256_prefix": "b64ddcd9e16a6dcd", "release": "Rev33.1_S369"}

## Statement

The DESI DR2+CMB baseline bound printed in the suite is Σmν < 64.2 meV; the ledger records it as an upper bound under baseline ΛCDM, not a measured central value.

## Primary source

Paper 5, §2, Cosmology comparator in the boundary-corollary box, PDF p.85: "Cosmology comparator, source-lined: DESI DR2+CMB baseline Σmν < 64.2 meV"

## Machine

- url: /library-v2/LIB2-207/
- content_sha256: bbf3b458b34d75a3780a01c84de5f49fbce4bf5c2c5a64161738ee0599862932
- candidate_ids: C2-182

## Freshness

- BUILD_STAMP S371a · 2026-09-26T22:53Z · master 01d1a5873ede42f5 · cut 9dcc6ce9a8ee3e02
- Declared volatile fields (R36): BUILD_STAMP