Pith Number

pith:WXPLJPKE

pith:1998:WXPLJPKEKHJCCK4KYL3537SV6J

not attested not anchored not stored refs pending

Geometrical approach to the evaluation of multileg Feynman diagrams

A. I. Davydychev, R. Delbourgo

arxiv:hep-th/9806248 v1 · 1998-06-30 · 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{WXPLJPKEKHJCCK4KYL3537SV6J}

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	2026-05-18T04:26:44.126826Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5deb4bd4451d2212b8ac2f7ddfe55f279ddc45af5ab8727f96c187a9b625999

Aliases

arxiv: hep-th/9806248 · arxiv_version: hep-th/9806248v1 · doi: 10.48550/arxiv.hep-th/9806248 · pith_short_12: WXPLJPKEKHJC · pith_short_16: WXPLJPKEKHJCCK4K · pith_short_8: WXPLJPKE

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/WXPLJPKEKHJCCK4KYL3537SV6J \
  | 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: b5deb4bd4451d2212b8ac2f7ddfe55f279ddc45af5ab8727f96c187a9b625999

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15e048a9e2544524aedfd7fcb89e03e2f91d6e9ada978e06c423d5b1c68e51a7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "1998-06-30T18:01:52Z",
    "title_canon_sha256": "4709f4125feaa299965908a28f474104d12f092ad64adc77e1c6741bf44fb00d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/9806248",
    "kind": "arxiv",
    "version": 1
  }
}