Pith Number

pith:OGTXE4TV

pith:2017:OGTXE4TVYR4ZVCZZ3HNJAGAQ2F

not attested not anchored not stored refs pending

The vacuum seagull: evaluating a 3-loop Feynman diagram with 3 mass scales

Barak Kol, Philipp Burda, Ruth Shir

arxiv:1704.02187 v2 · 2017-04-07 · 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{OGTXE4TVYR4ZVCZZ3HNJAGAQ2F}

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	2026-05-18T00:26:57.423761Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71a7727275c4799a8b39d9da901810d146c0f6e24b6e0017deae4fa44490f694

Aliases

arxiv: 1704.02187 · arxiv_version: 1704.02187v2 · doi: 10.48550/arxiv.1704.02187 · pith_short_12: OGTXE4TVYR4Z · pith_short_16: OGTXE4TVYR4ZVCZZ · pith_short_8: OGTXE4TV

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/OGTXE4TVYR4ZVCZZ3HNJAGAQ2F \
  | 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: 71a7727275c4799a8b39d9da901810d146c0f6e24b6e0017deae4fa44490f694

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54785129c8c1a614f10f8dbcc55a8fe0500529496052fee7899667132b46f11c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2017-04-07T11:15:02Z",
    "title_canon_sha256": "dd0b6f6179f098a5fb9ce00fe912109e83fcfa0b246984c67beee5b7e17bfe19"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.02187",
    "kind": "arxiv",
    "version": 2
  }
}