Pith Number

pith:Q4EBIVMK

pith:2003:Q4EBIVMKTLABJEL4QKF5TCOJOI

not attested not anchored not stored refs pending

GOTPM: A Parallel Hybrid Particle-Mesh Treecode

Changbom Park, John Dubinski, Juhan Kim, Robin Humble

arxiv:astro-ph/0304467 v1 · 2003-04-25 · 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{Q4EBIVMKTLABJEL4QKF5TCOJOI}

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	2026-05-18T01:40:39.013241Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

870814558a9ac014917c828bd989c9720d19df4f4987dcd0e2ec671a2a7e1602

Aliases

arxiv: astro-ph/0304467 · arxiv_version: astro-ph/0304467v1 · doi: 10.48550/arxiv.astro-ph/0304467 · pith_short_12: Q4EBIVMKTLAB · pith_short_16: Q4EBIVMKTLABJEL4 · pith_short_8: Q4EBIVMK

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/Q4EBIVMKTLABJEL4QKF5TCOJOI \
  | 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: 870814558a9ac014917c828bd989c9720d19df4f4987dcd0e2ec671a2a7e1602

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98497efaf1369b23a641946f93b058090fd110d4e2b95d332dc86067ea5c831e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-04-25T19:03:40Z",
    "title_canon_sha256": "a303721dfda10af76c19cfee4a3c08f8ca287e294d332294736ed3bcf047b5c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0304467",
    "kind": "arxiv",
    "version": 1
  }
}