Pith Number

pith:R3G4HYMY

pith:2019:R3G4HYMYC2B5A4SUCQ7LBUD7BW

not attested not anchored not stored refs pending

Bounding and approximating minimum maximal matchings in regular graphs

Dieter Rautenbach, Elena Mohr, Julien Baste, Maximilian F\"urst, Michael A. Henning

arxiv:1905.12241 v1 · 2019-05-29 · 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{R3G4HYMYC2B5A4SUCQ7LBUD7BW}

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	2026-05-17T23:44:44.903180Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ecdc3e1981683d07254143eb0d07f0d8a5a4f839a935b5b2b1cc3612b855ab7

Aliases

arxiv: 1905.12241 · arxiv_version: 1905.12241v1 · doi: 10.48550/arxiv.1905.12241 · pith_short_12: R3G4HYMYC2B5 · pith_short_16: R3G4HYMYC2B5A4SU · pith_short_8: R3G4HYMY

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/R3G4HYMYC2B5A4SUCQ7LBUD7BW \
  | 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: 8ecdc3e1981683d07254143eb0d07f0d8a5a4f839a935b5b2b1cc3612b855ab7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6b2f25442eb0c7b068f5922b9c083e75dced66daa3196719caea3067df258e8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-05-29T06:35:21Z",
    "title_canon_sha256": "68534e8e0cf498b83249af416dd12e7ad11485382de0cb9e7bf8f91f8b037e49"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.12241",
    "kind": "arxiv",
    "version": 1
  }
}