Pith Number

pith:VWWLS44K

pith:2009:VWWLS44K44W4YE3NYILHQYPTRX

not attested not anchored not stored refs pending

SimpleX2: radiative transfer on an unstructured, dynamic grid

C.J.H. Kruip, J.-P. Paardekooper, V. Icke

arxiv:0912.4273 v2 · 2009-12-21 · astro-ph.CO · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VWWLS44K44W4YE3NYILHQYPTRX}

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	2026-05-18T02:10:14.822066Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

adacb9738ae72dcc136dc2167861f38df2c4c1a7727feb2d60893c1b541ac524

Aliases

arxiv: 0912.4273 · arxiv_version: 0912.4273v2 · doi: 10.48550/arxiv.0912.4273 · pith_short_12: VWWLS44K44W4 · pith_short_16: VWWLS44K44W4YE3N · pith_short_8: VWWLS44K

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/VWWLS44K44W4YE3NYILHQYPTRX \
  | 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: adacb9738ae72dcc136dc2167861f38df2c4c1a7727feb2d60893c1b541ac524

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8138f55eb899c197da3822dadaa9aadf4d6a79230ec999916a61179e11d0f78e",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-12-21T21:32:32Z",
    "title_canon_sha256": "9dd7a882af33a9b1ed3c6f271e84e6644a8600a4cbdb5bfe4fb5ac9666d84cf9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.4273",
    "kind": "arxiv",
    "version": 2
  }
}