Pith Number

pith:IH72LCHK

pith:2009:IH72LCHKCXJEUEGXJ2RCUVMCNX

not attested not anchored not stored refs pending

Calculation of HELAS amplitudes for QCD processes using graphics processing unit (GPU)

D. Rainwater, J. Kanzaki, K. Hagiwara, N. Okamura, T. Stelzer

arxiv:0909.5257 v1 · 2009-09-29 · hep-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{IH72LCHKCXJEUEGXJ2RCUVMCNX}

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

The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations

Receipt and verification

First computed	2026-05-18T04:29:54.034428Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41ffa588ea15d24a10d74ea22a55826dee1fa34e3f1aaf65f99c9f9abb123df3

Aliases

arxiv: 0909.5257 · arxiv_version: 0909.5257v1 · doi: 10.48550/arxiv.0909.5257 · pith_short_12: IH72LCHKCXJE · pith_short_16: IH72LCHKCXJEUEGX · pith_short_8: IH72LCHK

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/IH72LCHKCXJEUEGXJ2RCUVMCNX \
  | 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: 41ffa588ea15d24a10d74ea22a55826dee1fa34e3f1aaf65f99c9f9abb123df3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1af204c4b335c38e7341884b3ae26b9fc6218da4066ebb75dc8036877caa794a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2009-09-29T03:34:54Z",
    "title_canon_sha256": "26a9efe052f6705854960256c124cc3e980bf0b9284b71569d238abaddac5354"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.5257",
    "kind": "arxiv",
    "version": 1
  }
}