Pith Number

pith:NLVI64I7

pith:2005:NLVI64I7QFZ65XCJ27GYI2HONZ

not attested not anchored not stored refs pending

The Lattice of Cyclic Flats of a Matroid

Anna de Mier, Joseph E. Bonin

arxiv:math/0505689 v2 · 2005-05-31 · 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{NLVI64I7QFZ65XCJ27GYI2HONZ}

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

Hepp's bound for Feynman graphs and matroids

Receipt and verification

First computed	2026-07-05T08:52:49.037105Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6aea8f711f8173eedc49d7cd8468ee6e61a0fbdd3ae4edcc3268d587ec6093ec

Aliases

arxiv: math/0505689 · arxiv_version: math/0505689v2 · doi: 10.48550/arxiv.math/0505689 · pith_short_12: NLVI64I7QFZ6 · pith_short_16: NLVI64I7QFZ65XCJ · pith_short_8: NLVI64I7

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/NLVI64I7QFZ65XCJ27GYI2HONZ \
  | 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: 6aea8f711f8173eedc49d7cd8468ee6e61a0fbdd3ae4edcc3268d587ec6093ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f7b6f01a8133ba3b6caa2e04dcab695a5a936fc7fb43386a84611052e8572c3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.CO",
    "submitted_at": "2005-05-31T17:28:41Z",
    "title_canon_sha256": "5f7bfb02194b2405c7ff15e3e01d1c06cc4d607214fdc904462a13cd4f1ed187"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0505689",
    "kind": "arxiv",
    "version": 2
  }
}