Pith Number

pith:ODSBIY7U

pith:2014:ODSBIY7U36NQKNXQPEJVAU3XFL

not attested not anchored not stored refs pending

Partitioning Perfect Graphs into Stars

Gerhard J. Woeginger, Jiehua Chen, Laurent Bulteau, Ren\'e van Bevern, Robert Bredereck, Rolf Niedermeier, Vincent Froese

arxiv:1402.2589 v3 · 2014-02-11 · cs.DM · cs.DS · 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{ODSBIY7U36NQKNXQPEJVAU3XFL}

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	2026-05-18T00:43:45.616240Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70e41463f4df9b0536f079135053772aefa40f77661bebb72ef7af6e94b6f7c3

Aliases

arxiv: 1402.2589 · arxiv_version: 1402.2589v3 · doi: 10.48550/arxiv.1402.2589 · pith_short_12: ODSBIY7U36NQ · pith_short_16: ODSBIY7U36NQKNXQ · pith_short_8: ODSBIY7U

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/ODSBIY7U36NQKNXQPEJVAU3XFL \
  | 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: 70e41463f4df9b0536f079135053772aefa40f77661bebb72ef7af6e94b6f7c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6fa85bc27744abe2715860081fb0695d2c91bee256f8045315c22aeee6ba72b1",
    "cross_cats_sorted": [
      "cs.DS",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2014-02-11T18:14:42Z",
    "title_canon_sha256": "729724ce931b3d4d2414aa037519edd96f1a238f882942edeb18aee8ec160cbe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.2589",
    "kind": "arxiv",
    "version": 3
  }
}