Pith Number

pith:BAMQABUD

pith:2009:BAMQABUDCUVRTZVHOZOR4DCL2Y

not attested not anchored not stored refs pending

On Konig-Egervary Square-Stable Graphs

Eugen Mandrescu, Vadim E. Levit

arxiv:0908.1313 v3 · 2009-08-10 · 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{BAMQABUDCUVRTZVHOZOR4DCL2Y}

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	2026-05-18T04:31:12.038753Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0819000683152b19e6a7765d1e0c4bd63b0526332b1ff8bc1b0537e219133130

Aliases

arxiv: 0908.1313 · arxiv_version: 0908.1313v3 · doi: 10.48550/arxiv.0908.1313 · pith_short_12: BAMQABUDCUVR · pith_short_16: BAMQABUDCUVRTZVH · pith_short_8: BAMQABUD

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/BAMQABUDCUVRTZVHOZOR4DCL2Y \
  | 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: 0819000683152b19e6a7765d1e0c4bd63b0526332b1ff8bc1b0537e219133130

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a4f91dcae14130e7f52e3673972c7603402630903f153471001c0a2dea861f6",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2009-08-10T12:39:31Z",
    "title_canon_sha256": "3fbd8a8ffe7976f1fc71d55d439244b1a204866564e308fa4df674c4c88bf4f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1313",
    "kind": "arxiv",
    "version": 3
  }
}