Pith Number

pith:CNAMJ2MG

pith:2011:CNAMJ2MGQAXJ6VHH3CA3YWQNKI

not attested not anchored not stored refs pending

Perfect Matchings in 4-uniform hypergraphs

Imdadullah Khan

arxiv:1101.5675 v2 · 2011-01-29 · cs.DM · 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{CNAMJ2MGQAXJ6VHH3CA3YWQNKI}

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	2026-05-18T02:22:42.113333Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1340c4e986802e9f54e7d881bc5a0d5231eb2995b056d7a78cca98fbf49b1409

Aliases

arxiv: 1101.5675 · arxiv_version: 1101.5675v2 · doi: 10.48550/arxiv.1101.5675 · pith_short_12: CNAMJ2MGQAXJ · pith_short_16: CNAMJ2MGQAXJ6VHH · pith_short_8: CNAMJ2MG

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/CNAMJ2MGQAXJ6VHH3CA3YWQNKI \
  | 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: 1340c4e986802e9f54e7d881bc5a0d5231eb2995b056d7a78cca98fbf49b1409

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "463870b5d136a24df7b71e31e6ecf11ec79c382a25fb2dc446023d06ae7dcf98",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2011-01-29T07:02:52Z",
    "title_canon_sha256": "ee9c2a0e09dce1440d51b7517d4cd5cd4b203573f30dd96012303474989a1588"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.5675",
    "kind": "arxiv",
    "version": 2
  }
}