Pith Number

pith:Y337ZMIB

pith:2018:Y337ZMIBOD7INRNW4E55LDCXYK

not attested not anchored not stored refs pending

$P$-Matchings in Graphs: A Brief Survey with Some Open Problems

Renu Laskar, Soumendra Ganguly, Stephen Hedetniemi, Todd Fenstermacher

arxiv:1805.03334 v1 · 2018-05-09 · 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{Y337ZMIBOD7INRNW4E55LDCXYK}

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	2026-05-18T00:16:20.473014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6f7fcb10170fe86c5b6e13bd58c57c2ae57b2747de1f215c5124ef6ee995747

Aliases

arxiv: 1805.03334 · arxiv_version: 1805.03334v1 · doi: 10.48550/arxiv.1805.03334 · pith_short_12: Y337ZMIBOD7I · pith_short_16: Y337ZMIBOD7INRNW · pith_short_8: Y337ZMIB

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/Y337ZMIBOD7INRNW4E55LDCXYK \
  | 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: c6f7fcb10170fe86c5b6e13bd58c57c2ae57b2747de1f215c5124ef6ee995747

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13c0b6c9e10bfbd9e66618c2379709fba820f46a8344cb2ce07d245e3429587b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-05-09T00:58:07Z",
    "title_canon_sha256": "f67809050a4c4cbfaf7ad876ca2e25510e66c4b43e95d208ecd8a739ad332cf8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.03334",
    "kind": "arxiv",
    "version": 1
  }
}