Pith Number

pith:U2LQHX3B

pith:2002:U2LQHX3BLXUDTQIBZDPTPI4WNJ

not attested not anchored not stored refs pending

Positron Fraction in the CMSSM

Christian Sander (Univ. Karlsruhe), Dmitri Kazakov (Dubna), Markus Horn, Wim de Boer

arxiv:astro-ph/0212388 v1 · 2002-12-18 · 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{U2LQHX3BLXUDTQIBZDPTPI4WNJ}

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	2026-05-18T00:37:32.590194Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a69703df615de839c101c8df37a3966a72de980fe8d1505cd8899f0d58ad7fe5

Aliases

arxiv: astro-ph/0212388 · arxiv_version: astro-ph/0212388v1 · doi: 10.48550/arxiv.astro-ph/0212388 · pith_short_12: U2LQHX3BLXUD · pith_short_16: U2LQHX3BLXUDTQIB · pith_short_8: U2LQHX3B

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/U2LQHX3BLXUDTQIBZDPTPI4WNJ \
  | 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: a69703df615de839c101c8df37a3966a72de980fe8d1505cd8899f0d58ad7fe5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44e0f109d5254bd43d9839dfc0e586007c16fb31f4109adf920780668d6022d5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-12-18T17:29:20Z",
    "title_canon_sha256": "4ef6bf402da5a72c0e04eab2f0225092a116f01cbca4d3a78a77a9a496cdf112"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0212388",
    "kind": "arxiv",
    "version": 1
  }
}