Pith Number

pith:EMZADUF4

pith:2019:EMZADUF4KLP7AR7T7JWT2GNUFN

not attested not anchored not stored refs pending

Hepp's bound for Feynman graphs and matroids

Erik Panzer

arxiv:1908.09820 v3 · 2019-08-26 · math-ph · hep-th · math.CO · math.MP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EMZADUF4KLP7AR7T7JWT2GNUFN}

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

3 papers in Pith

Fano and Reflexive Polytopes from Feynman Integrals

Tropicalized quantum field theory and global tropical sampling

Graphical Functions by Examples

Receipt and verification

First computed	2026-07-05T06:09:39.315756Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

233201d0bc52dff047f3fa6d3d19b42b604004e4e44421c5057dc91c756628fe

Aliases

arxiv: 1908.09820 · arxiv_version: 1908.09820v3 · doi: 10.48550/arxiv.1908.09820 · pith_short_12: EMZADUF4KLP7 · pith_short_16: EMZADUF4KLP7AR7T · pith_short_8: EMZADUF4

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/EMZADUF4KLP7AR7T7JWT2GNUFN \
  | 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: 233201d0bc52dff047f3fa6d3d19b42b604004e4e44421c5057dc91c756628fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d42e62043ca87b5be190ffb7c956c41d8eb968dacaa68329568ad50c989865c1",
    "cross_cats_sorted": [
      "hep-th",
      "math.CO",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2019-08-26T17:53:42Z",
    "title_canon_sha256": "42a8d3aecca2ddc5c4b69283f244107b1aa30f57c2a3637315a5a44e74df3fc3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.09820",
    "kind": "arxiv",
    "version": 3
  }
}