Pith Number

pith:MNVE727K

pith:2014:MNVE727KRAAAJFXUIZUD4M6HMB

not attested not anchored not stored refs pending

Fixed-parameter tractable canonization and isomorphism test for graphs of bounded treewidth

Daniel Lokshtanov, Marcin Pilipczuk, Micha{\l} Pilipczuk, Saket Saurabh

arxiv:1404.0818 v2 · 2014-04-03 · cs.DS · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MNVE727KRAAAJFXUIZUD4M6HMB}

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	2026-05-18T02:31:38.216715Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

636a4febea88000496f446683e33c7607e5838df1c0de8c7681a8d39f3fbfbdb

Aliases

arxiv: 1404.0818 · arxiv_version: 1404.0818v2 · doi: 10.48550/arxiv.1404.0818 · pith_short_12: MNVE727KRAAA · pith_short_16: MNVE727KRAAAJFXU · pith_short_8: MNVE727K

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/MNVE727KRAAAJFXUIZUD4M6HMB \
  | 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: 636a4febea88000496f446683e33c7607e5838df1c0de8c7681a8d39f3fbfbdb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ceac64199e680bac3f16b7e856c162f1bf8f10508076d8a9a849f7537dc60502",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-04-03T09:49:54Z",
    "title_canon_sha256": "6c0fea61f7f815931e7cff48e5b624a6f0a665a9ee9d62f03a0fd3c4e09dd998"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.0818",
    "kind": "arxiv",
    "version": 2
  }
}