Pith Number

pith:U7RZBWOX

pith:2004:U7RZBWOXKXOBKYGBACPAWW4KQD

not attested not anchored not stored refs pending

Note on the Robustness of the Neutrino Mass Bounds from Cosmology

Anupam Mazumdar, Masahide Yamaguchi, Robert H. Brandenberger

arxiv:hep-ph/0401239 v2 · 2004-01-29 · hep-ph · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U7RZBWOXKXOBKYGBACPAWW4KQD}

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.

Receipt and verification

First computed	2026-07-04T16:48:06.075765Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7e390d9d755dc1560c1009e0b5b8a80ef36e0c445e1a2c13d74f994be7def72

Aliases

arxiv: hep-ph/0401239 · arxiv_version: hep-ph/0401239v2 · doi: 10.48550/arxiv.hep-ph/0401239 · pith_short_12: U7RZBWOXKXOB · pith_short_16: U7RZBWOXKXOBKYGB · pith_short_8: U7RZBWOX

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/U7RZBWOXKXOBKYGBACPAWW4KQD \
  | 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: a7e390d9d755dc1560c1009e0b5b8a80ef36e0c445e1a2c13d74f994be7def72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d755f173401e74ce2510ad2aa552302b567ea623c194506ed1dce7f23c071a3b",
    "cross_cats_sorted": [
      "astro-ph"
    ],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "2004-01-29T20:16:09Z",
    "title_canon_sha256": "de56bf80a666a53e98df49d971353257af96b7851ba2a3496a38da91f67fbcdc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/0401239",
    "kind": "arxiv",
    "version": 2
  }
}