Pith Number

pith:2SK3FHIJ

pith:2000:2SK3FHIJJPNKCKZS5VT6OLFCAK

not attested not anchored not stored refs pending

Hydrodynamic Simulation of the Cosmological X-ray Background

David H. Weinberg (Ohio State), Lars Hernquist (CfA), Mark A. Fardal (UMass), Neal Katz (UMass), Romeel Dav'e (Princeton), Rupert A.C. Croft (CfA), Tiziana Di Matteo (CfA)

arxiv:astro-ph/0010345 v2 · 2000-10-17 · 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{2SK3FHIJJPNKCKZS5VT6OLFCAK}

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	2026-07-04T16:17:24.760099Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d495b29d094bdaa12b32ed67e72ca2028f881bfe23e76327a7205386bd8c1771

Aliases

arxiv: astro-ph/0010345 · arxiv_version: astro-ph/0010345v2 · doi: 10.48550/arxiv.astro-ph/0010345 · pith_short_12: 2SK3FHIJJPNK · pith_short_16: 2SK3FHIJJPNKCKZS · pith_short_8: 2SK3FHIJ

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/2SK3FHIJJPNKCKZS5VT6OLFCAK \
  | 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: d495b29d094bdaa12b32ed67e72ca2028f881bfe23e76327a7205386bd8c1771

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d48650adb9dc6efaa6081486095c791880e5b2c71f8a57675aa1a8067506f6a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-10-17T22:54:28Z",
    "title_canon_sha256": "fdfff619b4c164652655fd49bb9da1e1b1bcf2128731ae85741facca5b658e10"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0010345",
    "kind": "arxiv",
    "version": 2
  }
}