Pith Number

pith:AKFBQYOW

pith:2023:AKFBQYOWE3E5ODY2KY2XTYG2I3

not attested not anchored not stored refs pending

Ehrhart positivity for a certain class of panhandle matroids

Daniel McGinnis

arxiv:2303.04113 v2 · 2023-03-07 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AKFBQYOWE3E5ODY2KY2XTYG2I3}

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	2026-07-05T07:23:01.915366Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

028a1861d626c9d70f1a563579e0da46c8bcef65751895433cd3fe9634b6430f

Aliases

arxiv: 2303.04113 · arxiv_version: 2303.04113v2 · doi: 10.48550/arxiv.2303.04113 · pith_short_12: AKFBQYOWE3E5 · pith_short_16: AKFBQYOWE3E5ODY2 · pith_short_8: AKFBQYOW

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/AKFBQYOWE3E5ODY2KY2XTYG2I3 \
  | 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: 028a1861d626c9d70f1a563579e0da46c8bcef65751895433cd3fe9634b6430f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39889a3f4861996668102d0e1d4d845a5c5efd09b4db86dca2f86a9764c5c867",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2023-03-07T18:25:27Z",
    "title_canon_sha256": "08a360945f48a607f917cea95ca1030bce513a46321c59564502c72d4d39acbe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2303.04113",
    "kind": "arxiv",
    "version": 2
  }
}