Pith Number

pith:SBL3KZV4

pith:2025:SBL3KZV4Q5PMQAWG2TL4W4JOKP

not attested not anchored not stored refs pending

Primordial neutrinos fade to gray: constraints from cosmological observables

Cyril Pitrou, Gabriela Barenboim, Hector Sanchis, Julien Froustey

arxiv:2504.07178 v2 · 2025-04-09 · hep-ph · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SBL3KZV4Q5PMQAWG2TL4W4JOKP}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

2 papers in Pith

Pathways and impediments towards a detection of the relic neutrino wind

Probing the neutrino chemical potential with cosmological observations

Receipt and verification

First computed	2026-07-05T11:27:29.013683Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9057b566bc875ec802c6d4d7cb712e53c948ff620f445855836c318bcb31def1

Aliases

arxiv: 2504.07178 · arxiv_version: 2504.07178v2 · doi: 10.48550/arxiv.2504.07178 · pith_short_12: SBL3KZV4Q5PM · pith_short_16: SBL3KZV4Q5PMQAWG · pith_short_8: SBL3KZV4

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/SBL3KZV4Q5PMQAWG2TL4W4JOKP \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 9057b566bc875ec802c6d4d7cb712e53c948ff620f445855836c318bcb31def1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa41b54becf7f68af27b953916b2cc24cddd9942a8bdc9623d700733b5bcfdd8",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2025-04-09T18:00:07Z",
    "title_canon_sha256": "b30fec4a78a73f56344e04096ba87a9f087850fd1c555d82c16dad59fb828a39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.07178",
    "kind": "arxiv",
    "version": 2
  }
}