Pith Number

pith:WA56P2DB

pith:2002:WA56P2DBP5DLPCE7NZBQJAECU4

not attested not anchored not stored refs pending

X-ray Absorption by the Low-redshift Intergalactic Medium: A Numerical Study of the Lambda CDM model

David H. Weinberg (OSU Astronomy), Neal Katz (U. Mass. Astronomy), Romeel Dave' (Steward Observatory, U. Arizona), Xuelei Chen (ITP/UCSB)

arxiv:astro-ph/0203319 v2 · 2002-03-20 · 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{WA56P2DBP5DLPCE7NZBQJAECU4}

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	2026-07-04T16:29:34.279650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b03be7e8617f46b7889f6e43048082a73d762e6f252ddaa4145fb2ce5c4e0af2

Aliases

arxiv: astro-ph/0203319 · arxiv_version: astro-ph/0203319v2 · doi: 10.48550/arxiv.astro-ph/0203319 · pith_short_12: WA56P2DBP5DL · pith_short_16: WA56P2DBP5DLPCE7 · pith_short_8: WA56P2DB

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/WA56P2DBP5DLPCE7NZBQJAECU4 \
  | 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: b03be7e8617f46b7889f6e43048082a73d762e6f252ddaa4145fb2ce5c4e0af2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c6b59c60a62ea668eddd170ed35184784a86b982603d0237a72d9d3d12a07cd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-03-20T00:50:08Z",
    "title_canon_sha256": "f861730f48a9239b4530f53ad6abf3edaf487619137d6bf4e9a9c6a41a3f2d58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0203319",
    "kind": "arxiv",
    "version": 2
  }
}