Pith Number

pith:NN5RI5VP

pith:2017:NN5RI5VPLMFRNKXFUPSD5NIZK3

not attested not anchored not stored refs pending

Vertex degree sums for perfect matchings in 3-uniform hypergraphs

Mei Lu, Yi Zhang, Yi Zhao

arxiv:1710.04752 v1 · 2017-10-13 · 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{NN5RI5VPLMFRNKXFUPSD5NIZK3}

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

An Improved Lower Bound for the Erd\H{o}s-Lov\'asz Cover Number Problem

Receipt and verification

First computed	2026-05-18T00:32:56.825269Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b7b1476af5b0b16aae5a3e43eb51956fe15781c66f354f96476972a4a1600d9

Aliases

arxiv: 1710.04752 · arxiv_version: 1710.04752v1 · doi: 10.48550/arxiv.1710.04752 · pith_short_12: NN5RI5VPLMFR · pith_short_16: NN5RI5VPLMFRNKXF · pith_short_8: NN5RI5VP

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/NN5RI5VPLMFRNKXFUPSD5NIZK3 \
  | 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: 6b7b1476af5b0b16aae5a3e43eb51956fe15781c66f354f96476972a4a1600d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d96c3a86143762fe853b3da83e64ac7676aaac4e107218723839e6d0f4a98768",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-10-13T00:00:19Z",
    "title_canon_sha256": "b6fc34a4848028516d1ec19f14b6ac75a417982fac4eb921883c6bba07e57bab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.04752",
    "kind": "arxiv",
    "version": 1
  }
}