pith. sign in
Pith Number

pith:25S2HPV4

pith:2012:25S2HPV42RUPBWDY2CC3TAG5LU
not attested not anchored not stored refs pending

An Integrand Reconstruction Method for Three-Loop Amplitudes

Hjalte Frellesvig, Simon Badger, Yang Zhang

arxiv:1207.2976 v1 · 2012-07-12 · hep-ph · hep-th

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{25S2HPV42RUPBWDY2CC3TAG5LU}

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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.
Receipt and verification
First computed 2026-05-18T01:56:24.353229Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

d765a3bebcd468f0d878d085b980dd5d0da39fd7531b720f2f4d8d947bb6da6f

Aliases

arxiv: 1207.2976 · arxiv_version: 1207.2976v1 · doi: 10.48550/arxiv.1207.2976 · pith_short_12: 25S2HPV42RUP · pith_short_16: 25S2HPV42RUPBWDY · pith_short_8: 25S2HPV4
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/25S2HPV42RUPBWDY2CC3TAG5LU \
  | 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: d765a3bebcd468f0d878d085b980dd5d0da39fd7531b720f2f4d8d947bb6da6f
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "e19507bb98be97ecf7c8bbf7dab46e3dc4327def334ec275c6ecefe99b342957",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2012-07-12T14:12:07Z",
    "title_canon_sha256": "6ba2d199402cccc5d517695a00bb3f7a3217ba4feb7941fcf4dac5fd80615b63"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.2976",
    "kind": "arxiv",
    "version": 1
  }
}