Pith Number

pith:XMXSCKMG

pith:2025:XMXSCKMGA6CZKCXQ6DIOF7GTQM

not attested not anchored not stored refs pending

Analytic two-loop amplitudes for $q\bar{q}\to \gamma \gamma$ and $gg \to \gamma \gamma$ mediated by a heavy-quark loop

Christoph Nega, Fabian J. Wagner, Federico Coro, Lorenzo Tancredi, Matteo Becchetti

arxiv:2502.00118 v1 · 2025-01-31 · hep-ph · hep-th

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XMXSCKMGA6CZKCXQ6DIOF7GTQM}

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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

8 papers in Pith

From geometry to phenomenology

Solution of Canonical Differential Equations for Integrals on Arbitrary Geometries

Magic Relations and Critical Varieties of Feynman Integrals

New algorithms for Feynman integral reduction and $\varepsilon$-factorised differential equations

The spectrum of Feynman-integral geometries at two loops

Receipt and verification

First computed	2026-07-05T10:08:03.198296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb2f2129860785950af0f0d0e2fcd3830cdee8de5f6ba1b4f386323cde99e40f

Aliases

arxiv: 2502.00118 · arxiv_version: 2502.00118v1 · doi: 10.48550/arxiv.2502.00118 · pith_short_12: XMXSCKMGA6CZ · pith_short_16: XMXSCKMGA6CZKCXQ · pith_short_8: XMXSCKMG

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/XMXSCKMGA6CZKCXQ6DIOF7GTQM \
  | 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: bb2f2129860785950af0f0d0e2fcd3830cdee8de5f6ba1b4f386323cde99e40f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3fa3473dada9f63c72a5b5a4e65b5de6e3e1df62bf798ed3ded5ae5c768d761",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2025-01-31T19:06:43Z",
    "title_canon_sha256": "1a2eb3c10fa8be4029008d728542c4633b8c855948d94fd0301ccd0d669499ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.00118",
    "kind": "arxiv",
    "version": 1
  }
}