Pith Number

pith:HHXDB2ZB

pith:2013:HHXDB2ZBL5WZO34XWUWBXLCRGZ

not attested not anchored not stored refs pending

Fast computation of MadGraph amplitudes on graphics processing unit (GPU)

J. Kanzaki, K. Hagiwara, N. Okamura, Q. Li, T. Stelzer

arxiv:1305.0708 v3 · 2013-05-03 · physics.comp-ph · hep-ex · 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{HHXDB2ZBL5WZO34XWUWBXLCRGZ}

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	2026-05-18T01:50:12.755797Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39ee30eb215f6d976f97b52c1bac513671323484894e925d7f5db149b585a58f

Aliases

arxiv: 1305.0708 · arxiv_version: 1305.0708v3 · doi: 10.48550/arxiv.1305.0708 · pith_short_12: HHXDB2ZBL5WZ · pith_short_16: HHXDB2ZBL5WZO34X · pith_short_8: HHXDB2ZB

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/HHXDB2ZBL5WZO34XWUWBXLCRGZ \
  | 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: 39ee30eb215f6d976f97b52c1bac513671323484894e925d7f5db149b585a58f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2e4b080eac9f6ad8147571c053f264b923d7f361367ae7813d104ed4b5b6160",
    "cross_cats_sorted": [
      "hep-ex",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2013-05-03T14:01:41Z",
    "title_canon_sha256": "e54da7891a4d1b0ff266bf5d8b01ff5b56f61722b02a2729744e9177db8917af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.0708",
    "kind": "arxiv",
    "version": 3
  }
}