Pith Number

pith:UTWGK2QN

pith:2008:UTWGK2QNXJOU7H3AA2Z2OP7NOV

not attested not anchored not stored refs pending

Algorithm FIRE -- Feynman Integral REduction

A.V. Smirnov

arxiv:0807.3243 v3 · 2008-07-21 · 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{UTWGK2QNXJOU7H3AA2Z2OP7NOV}

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.

Cited by

12 papers in Pith

Compact Syzygies for Feynman Integrals from Landau Singularities

Taming Symbolic IBP Reduction with Intermediate Bases

Weak-field waveforms for generic relativistic orbits

Efficient AI-Inspired Reduction of Feynman Integrals via Tube Seeding

LinApart3: efficient algorithm for multivariate partial fraction decomposition with linear denominators

Receipt and verification

First computed	2026-07-04T15:29:08.085270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4ec656a0dba5d4f9f6006b3a73fed754f8dece590fa5bcaba443c10a9fdced9

Aliases

arxiv: 0807.3243 · arxiv_version: 0807.3243v3 · doi: 10.48550/arxiv.0807.3243 · pith_short_12: UTWGK2QNXJOU · pith_short_16: UTWGK2QNXJOU7H3A · pith_short_8: UTWGK2QN

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/UTWGK2QNXJOU7H3AA2Z2OP7NOV \
  | 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: a4ec656a0dba5d4f9f6006b3a73fed754f8dece590fa5bcaba443c10a9fdced9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b4aff5bf640da9e98a2305c9def4fc0ea87954be9cbb650269d7a5a52482f00",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2008-07-21T12:04:18Z",
    "title_canon_sha256": "3a8cfda6430d64ba3bd306b379433cf6bb3716abf907b5cf815cf2744284e4b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.3243",
    "kind": "arxiv",
    "version": 3
  }
}