Pith Number

pith:B7QVFNBB

pith:2012:B7QVFNBBPR34AU462KBMN357L6

not attested not anchored not stored refs pending

Large rainbow matchings in large graphs

Alexandr Kostochka, Florian Pfender, Matthew Yancey

arxiv:1204.3193 v1 · 2012-04-14 · 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{B7QVFNBBPR34AU462KBMN357L6}

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	2026-05-18T03:57:52.304844Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0fe152b4217c77c0539ed282c6efbf5f84f5028d775aec0ea4b11a212710d62a

Aliases

arxiv: 1204.3193 · arxiv_version: 1204.3193v1 · doi: 10.48550/arxiv.1204.3193 · pith_short_12: B7QVFNBBPR34 · pith_short_16: B7QVFNBBPR34AU46 · pith_short_8: B7QVFNBB

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/B7QVFNBBPR34AU462KBMN357L6 \
  | 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: 0fe152b4217c77c0539ed282c6efbf5f84f5028d775aec0ea4b11a212710d62a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e084a2895d098f987fe39df7d4d361fb8296a4964cad291d09012771fd4e7404",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-04-14T18:14:32Z",
    "title_canon_sha256": "0d70c0de6c51151fe2eea42957516deca0d5a3f80823b859fdf418f90af28eb6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3193",
    "kind": "arxiv",
    "version": 1
  }
}