Pith Number

pith:VEU3YITB

pith:2004:VEU3YITBKOBWHG7GSY4OURCMWG

not attested not anchored not stored refs pending

Towards optimal parallel PM N-body codes: PMFAST

Hugh Merz, Hy Trac, Ue-Li Pen

arxiv:astro-ph/0402443 v2 · 2004-02-19 · 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{VEU3YITBKOBWHG7GSY4OURCMWG}

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.

Cited by

1 paper in Pith

Fast(er)PM and Moving Mesh: JAX-native Geometric Multigrid Methods

Receipt and verification

First computed	2026-07-04T14:13:21.182290Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a929bc22615383639be69638ea444cb1bd22206565808a6266c0a87baceaa2db

Aliases

arxiv: astro-ph/0402443 · arxiv_version: astro-ph/0402443v2 · doi: 10.48550/arxiv.astro-ph/0402443 · pith_short_12: VEU3YITBKOBW · pith_short_16: VEU3YITBKOBWHG7G · pith_short_8: VEU3YITB

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/VEU3YITBKOBWHG7GSY4OURCMWG \
  | 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: a929bc22615383639be69638ea444cb1bd22206565808a6266c0a87baceaa2db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "05c73f1939c85eda34ce187c52b2a8691259b6bcb166ae729c20211ab77d0318",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-02-19T20:32:19Z",
    "title_canon_sha256": "7076845ea15bd813e9fdfa7e4020f1fcae25c29413cddbd28b2aa6824892691e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0402443",
    "kind": "arxiv",
    "version": 2
  }
}