Pith Number

pith:QHRAHQN7

pith:2015:QHRAHQN7VWNXDACWGJKNKDOYAG

not attested not anchored not stored refs pending

A spectral, quasi-cylindrical and dispersion-free Particle-In-Cell algorithm

Brendan B. Godfrey, Igor A. Andriyash, Jean-Luc Vay, Manuel Kirchen, Remi Lehe

arxiv:1507.04790 v2 · 2015-07-16 · physics.plasm-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{QHRAHQN7VWNXDACWGJKNKDOYAG}

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	2026-05-18T01:15:44.990213Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81e203c1bfad9b7180563254d50dd801bde2628824b573f1385805f77c04def6

Aliases

arxiv: 1507.04790 · arxiv_version: 1507.04790v2 · doi: 10.48550/arxiv.1507.04790 · pith_short_12: QHRAHQN7VWNX · pith_short_16: QHRAHQN7VWNXDACW · pith_short_8: QHRAHQN7

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/QHRAHQN7VWNXDACWGJKNKDOYAG \
  | 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: 81e203c1bfad9b7180563254d50dd801bde2628824b573f1385805f77c04def6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77fb595862495467094607182d518ca712b7bd0d6e3a93ed2d7814bf93a32d60",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.plasm-ph",
    "submitted_at": "2015-07-16T22:56:01Z",
    "title_canon_sha256": "90cddce9e67504ac00f8bbffdb443ae025255bcb3b0f8c3807755685d2f0e17b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.04790",
    "kind": "arxiv",
    "version": 2
  }
}