Pith Number

pith:CDW6LV3G

pith:2018:CDW6LV3GS3XE24IBGWYVTLFODL

not attested not anchored not stored refs pending

The structure of claw-free binary matroids

Kazuhiro Nomoto, Peter Nelson

arxiv:1807.11543 v1 · 2018-07-30 · 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{CDW6LV3GS3XE24IBGWYVTLFODL}

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

The smallest matroids with no large independent flat

Receipt and verification

First computed	2026-05-18T00:09:21.937255Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

10ede5d76696ee4d710135b159acae1ac10ae2ca9777f4b026f936c8a5c8112c

Aliases

arxiv: 1807.11543 · arxiv_version: 1807.11543v1 · doi: 10.48550/arxiv.1807.11543 · pith_short_12: CDW6LV3GS3XE · pith_short_16: CDW6LV3GS3XE24IB · pith_short_8: CDW6LV3G

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/CDW6LV3GS3XE24IBGWYVTLFODL \
  | 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: 10ede5d76696ee4d710135b159acae1ac10ae2ca9777f4b026f936c8a5c8112c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bed8ba7c7a988c1b4f61d8700ca9d2e3eecf5f418a700d2758f3b6d94685a31c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-07-30T19:37:23Z",
    "title_canon_sha256": "da9036a454b133a76db81f54950dc0331f95cfcf0280a6ea2e43d2b479b833f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.11543",
    "kind": "arxiv",
    "version": 1
  }
}