Pith Number

pith:Y5GZEXSA

pith:2017:Y5GZEXSAM62QGMP6ZGO47TPITX

not attested not anchored not stored refs pending

On some Graphs with a Unique Perfect Matching

D. Rautenbach, F. Maffray, M. F\"urst, S. Chaplick

arxiv:1712.04228 v1 · 2017-12-12 · math.CO · cs.DM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y5GZEXSAM62QGMP6ZGO47TPITX}

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	2026-05-18T00:28:08.728356Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c74d925e4067b50331fec99dcfcde89dda8f74259b645432bb504c5dedd700ee

Aliases

arxiv: 1712.04228 · arxiv_version: 1712.04228v1 · doi: 10.48550/arxiv.1712.04228 · pith_short_12: Y5GZEXSAM62Q · pith_short_16: Y5GZEXSAM62QGMP6 · pith_short_8: Y5GZEXSA

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/Y5GZEXSAM62QGMP6ZGO47TPITX \
  | 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: c74d925e4067b50331fec99dcfcde89dda8f74259b645432bb504c5dedd700ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ba3a5a591d48e2b5b92808c97ea1268a61359606e0bafd1e7fec6fac840e663",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-12-12T11:03:37Z",
    "title_canon_sha256": "28ca6f8445eaaf2dc25b1be15a7018e5125f7c62be80caae1db3e0f801471989"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.04228",
    "kind": "arxiv",
    "version": 1
  }
}