Pith Number

pith:PD7R2XKY

pith:2026:PD7R2XKY7N3TVEAROFXWVE5KWS

not attested not anchored not stored refs pending

Dual Chow polynomials of matroids and posets

Elena Hoster, Giovanni Caiolo, Luis Ferroni

arxiv:2605.28474 v1 · 2026-05-27 · 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{PD7R2XKY7N3TVEAROFXWVE5KWS}

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	2026-05-28T02:04:54.024900Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78ff1d5d58fb773a9011716f6a93aab4a52f22d3b83fe49a2177bb95580a9da2

Aliases

arxiv: 2605.28474 · arxiv_version: 2605.28474v1 · doi: 10.48550/arxiv.2605.28474 · pith_short_12: PD7R2XKY7N3T · pith_short_16: PD7R2XKY7N3TVEAR · pith_short_8: PD7R2XKY

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/PD7R2XKY7N3TVEAROFXWVE5KWS \
  | 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: 78ff1d5d58fb773a9011716f6a93aab4a52f22d3b83fe49a2177bb95580a9da2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61b5bba90633bc7ffeb1c19c385288ae303e369579db382acc37839e14bbdced",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2026-05-27T13:38:02Z",
    "title_canon_sha256": "b621b3189a38f78a82559a906407644dc9d2d7a7626a873c41425407c0f2cdfe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.28474",
    "kind": "arxiv",
    "version": 1
  }
}