Pith Number

pith:FL7CTH27

pith:2003:FL7CTH27OQFYMLBYIYZBZNG6YK

not attested not anchored not stored refs pending

General subtraction method for numerical calculation of one-loop QCD matrix elements

Davison E. Soper, Zoltan Nagy

arxiv:hep-ph/0308127 v1 · 2003-08-12 · 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{FL7CTH27OQFYMLBYIYZBZNG6YK}

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	2026-07-04T16:40:51.057972Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2afe299f5f740b862c3846321cb4dec296e2d22a7c2e51cee6590408e031d9af

Aliases

arxiv: hep-ph/0308127 · arxiv_version: hep-ph/0308127v1 · doi: 10.48550/arxiv.hep-ph/0308127 · pith_short_12: FL7CTH27OQFY · pith_short_16: FL7CTH27OQFYMLBY · pith_short_8: FL7CTH27

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/FL7CTH27OQFYMLBYIYZBZNG6YK \
  | 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: 2afe299f5f740b862c3846321cb4dec296e2d22a7c2e51cee6590408e031d9af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32b4e4e4be28ee0b0a5cf4e835523e33981bf7fd45d5664970287d31dc57654c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-ph",
    "submitted_at": "2003-08-12T03:15:21Z",
    "title_canon_sha256": "d330d5be7bcf67d5d35b8cbcc344270ea26e0f2ff3b34317d0287350b14f071b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-ph/0308127",
    "kind": "arxiv",
    "version": 1
  }
}