Pith Number

pith:34EMCKE2

pith:2019:34EMCKE2SQZU3VZBCMERA2VZ5F

not attested not anchored not stored refs pending

A numerical evaluation of planar two-loop helicity amplitudes for a W-boson plus four partons

Christian Br{\o}nnum-Hansen, Heribertus Bayu Hartanto, Simon Badger, Tiziano Peraro

arxiv:1906.11862 v1 · 2019-06-27 · hep-ph · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{34EMCKE2SQZU3VZBCMERA2VZ5F}

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	2026-05-17T23:42:01.844259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df08c1289a94334dd7211309106ab9e950f0966e3bed5d2d76efa16419991164

Aliases

arxiv: 1906.11862 · arxiv_version: 1906.11862v1 · doi: 10.48550/arxiv.1906.11862 · pith_short_12: 34EMCKE2SQZU · pith_short_16: 34EMCKE2SQZU3VZB · pith_short_8: 34EMCKE2

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/34EMCKE2SQZU3VZBCMERA2VZ5F \
  | 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: df08c1289a94334dd7211309106ab9e950f0966e3bed5d2d76efa16419991164

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b09053a4a59af4e7b95011e4b685b12de7f0bae1fdb6785bfd6052a1c0976a8c",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2019-06-27T18:24:17Z",
    "title_canon_sha256": "5db76a3159c36421d9a8db654140b690d2d322655cb2c59933febb486c1aa9d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.11862",
    "kind": "arxiv",
    "version": 1
  }
}