Pith Number

pith:42OUL7I4

pith:2021:42OUL7I4S3HWRNKUFOC4MTZ36I

not attested not anchored not stored refs pending

Two-loop leading colour QCD helicity amplitudes for top quark pair production in the gluon fusion channel

Ekta Chaubey, Heribertus Bayu Hartanto, Robin Marzucca, Simon Badger

arxiv:2102.13450 v2 · 2021-02-26 · 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{42OUL7I4S3HWRNKUFOC4MTZ36I}

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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

2 papers in Pith

One-loop amplitudes for $t\bar{t}j$ and $t\bar{t}\gamma$ productions at the LHC through $\mathcal{O}(\epsilon^2)$

Double virtual QCD corrections to $t\bar{t}+$jet production at the LHC

Receipt and verification

First computed	2026-07-05T02:57:42.602973Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e69d45fd1c96cf68b5542b85c64f3bf22ac4572b7fc7fa4a9af1ce4a473be9f1

Aliases

arxiv: 2102.13450 · arxiv_version: 2102.13450v2 · doi: 10.48550/arxiv.2102.13450 · pith_short_12: 42OUL7I4S3HW · pith_short_16: 42OUL7I4S3HWRNKU · pith_short_8: 42OUL7I4

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/42OUL7I4S3HWRNKUFOC4MTZ36I \
  | 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: e69d45fd1c96cf68b5542b85c64f3bf22ac4572b7fc7fa4a9af1ce4a473be9f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "573e341cf5a04742e4edc4fb4e2d8e370eab6e65ccaa5e923926001c1e2a1cfb",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2021-02-26T13:07:26Z",
    "title_canon_sha256": "ee9d68698b4ae65d31323c5579d7c69a1111c1a685edf5a7104024a4cb4c8a06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.13450",
    "kind": "arxiv",
    "version": 2
  }
}