Pith Number

pith:BPHMWPX5

pith:2011:BPHMWPX5LMMAJOZEWIWR3MPMKD

not attested not anchored not stored refs pending

Constraints on massive sterile neutrino species from current and future cosmological data

Alessandro Melchiorri, Elena Giusarma, Maria Archidiacono, Martina Corsi, Olga Mena, Roland de Putter, Stefania Pandolfi

arxiv:1102.4774 v2 · 2011-02-23 · astro-ph.CO · hep-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{BPHMWPX5LMMAJOZEWIWR3MPMKD}

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	2026-05-18T04:05:59.352176Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0bcecb3efd5b1804bb24b22d1db1ec50d570eea5769dc7966ec2e74472d205b2

Aliases

arxiv: 1102.4774 · arxiv_version: 1102.4774v2 · doi: 10.48550/arxiv.1102.4774 · pith_short_12: BPHMWPX5LMMA · pith_short_16: BPHMWPX5LMMAJOZE · pith_short_8: BPHMWPX5

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/BPHMWPX5LMMAJOZEWIWR3MPMKD \
  | 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: 0bcecb3efd5b1804bb24b22d1db1ec50d570eea5769dc7966ec2e74472d205b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "791e1d13ae319957f65b0ae8c6e20297386abfcb25438f2935c5c79d65ecf912",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-02-23T16:10:46Z",
    "title_canon_sha256": "4017e9e38aade40e81dcda0a0c6923d86fdfd099cb747a5679ffcc6971f5ba69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.4774",
    "kind": "arxiv",
    "version": 2
  }
}