Pith Number

pith:WE5ORBKP

pith:2013:WE5ORBKPYIHAXQSFVMTSR2RANE

not attested not anchored not stored refs pending

On a Generalization of the Ryser-Brualdi-Stein Conjecture

David Howard, Pierre Charbit, Ron Aharoni

arxiv:1305.6164 v1 · 2013-05-27 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WE5ORBKPYIHAXQSFVMTSR2RANE}

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	2026-05-18T03:24:52.050598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b13ae8854fc20e0bc245ab2728ea20690ac799071a99509b0cfd97038135e005

Aliases

arxiv: 1305.6164 · arxiv_version: 1305.6164v1 · doi: 10.48550/arxiv.1305.6164 · pith_short_12: WE5ORBKPYIHA · pith_short_16: WE5ORBKPYIHAXQSF · pith_short_8: WE5ORBKP

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/WE5ORBKPYIHAXQSFVMTSR2RANE \
  | 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: b13ae8854fc20e0bc245ab2728ea20690ac799071a99509b0cfd97038135e005

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d8312359e685d320b72725b133ee5a7e80cca422051fb8dfe93b70c4b0ad279",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-05-27T10:03:39Z",
    "title_canon_sha256": "094ca11404612d9202cb760bc5f06653b8f85232cde761b876dff3f2eecb5376"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.6164",
    "kind": "arxiv",
    "version": 1
  }
}