Pith Number

pith:D6PHBYJQ

pith:2025:D6PHBYJQGSRBX7LINDBVBW7UZY

not attested not anchored not stored refs pending

The polytope of all matroids

Alex Fink, Luis Ferroni

arxiv:2502.20157 v2 · 2025-02-27 · 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{D6PHBYJQGSRBX7LINDBVBW7UZY}

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

1 paper in Pith

Ehrhart positivity for lattice path matroids

Receipt and verification

First computed	2026-07-05T11:52:59.818853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f9e70e13034a21bfd6868c350dbf4ce3ea127280d1142649f57338ea7b840b4

Aliases

arxiv: 2502.20157 · arxiv_version: 2502.20157v2 · doi: 10.48550/arxiv.2502.20157 · pith_short_12: D6PHBYJQGSRB · pith_short_16: D6PHBYJQGSRBX7LI · pith_short_8: D6PHBYJQ

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/D6PHBYJQGSRBX7LINDBVBW7UZY \
  | 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: 1f9e70e13034a21bfd6868c350dbf4ce3ea127280d1142649f57338ea7b840b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "108878a991e4dca5392676ce7e6d13745e71ed7354ae3683d4a8a4d3c47023ea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2025-02-27T14:55:45Z",
    "title_canon_sha256": "c5258ce284d4ee32c63cf795d6e32f3ec776e6531fd72f813598bb5f572c980b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.20157",
    "kind": "arxiv",
    "version": 2
  }
}