Pith Number

pith:UHBC265L

pith:2009:UHBC265LKZH2Y6MVP4A3WRGNR5

not attested not anchored not stored refs pending

Model independent analysis of dark matter points to a particle mass at the keV scale

H. J. de Vega, N. G. Sanchez

arxiv:0901.0922 v3 · 2009-01-07 · astro-ph.CO · gr-qc · hep-ex · hep-ph · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UHBC265LKZH2Y6MVP4A3WRGNR5}

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	2026-05-18T04:25:02.062068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1c22d7bab564fac79957f01bb44cd8f6388db5d092744e7cfffec6075d56742

Aliases

arxiv: 0901.0922 · arxiv_version: 0901.0922v3 · doi: 10.48550/arxiv.0901.0922 · pith_short_12: UHBC265LKZH2 · pith_short_16: UHBC265LKZH2Y6MV · pith_short_8: UHBC265L

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/UHBC265LKZH2Y6MVP4A3WRGNR5 \
  | 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: a1c22d7bab564fac79957f01bb44cd8f6388db5d092744e7cfffec6075d56742

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d327db450cbeacf7fca80b9b10863a3e92e37ea545d45b5119ad05ed843d9c3",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ex",
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-01-07T21:02:12Z",
    "title_canon_sha256": "357fdc872061ee6d342ed48aef63d6707ca9f2b4f4d606ece9091afb2e4734f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.0922",
    "kind": "arxiv",
    "version": 3
  }
}