Pith Number

pith:SV4VEU2C

pith:2014:SV4VEU2C57OEVHWFKZO2LZ32EC

not attested not anchored not stored refs pending

Matchings in vertex-transitive bipartite graphs

P\'eter Csikv\'ari

arxiv:1407.5409 v2 · 2014-07-21 · 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{SV4VEU2C57OEVHWFKZO2LZ32EC}

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	2026-05-18T02:46:24.042150Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9579525342efdc4a9ec5565da5e77a20b1128bf6cd63ce768009545d32384014

Aliases

arxiv: 1407.5409 · arxiv_version: 1407.5409v2 · doi: 10.48550/arxiv.1407.5409 · pith_short_12: SV4VEU2C57OE · pith_short_16: SV4VEU2C57OEVHWF · pith_short_8: SV4VEU2C

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/SV4VEU2C57OEVHWFKZO2LZ32EC \
  | 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: 9579525342efdc4a9ec5565da5e77a20b1128bf6cd63ce768009545d32384014

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53b3b9cfbeabcddcd04081e1ca16fb5d5ac488e638c4b95ace0f25e8abbb0020",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-07-21T08:15:17Z",
    "title_canon_sha256": "4687de00c88b650086de97b830ae35644c7bc791b4619ba253b3c2714b5b2d38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.5409",
    "kind": "arxiv",
    "version": 2
  }
}