Pith Number

pith:CROF3JHL

pith:2017:CROF3JHLHPXN3B5ICYGZWMQA2A

not attested not anchored not stored refs pending

Clique-cutsets beyond chordal graphs

Irena Penev, Kristina Vuskovic, Valerio Boncompagni

arxiv:1707.03252 v1 · 2017-07-11 · 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{CROF3JHLHPXN3B5ICYGZWMQA2A}

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	2026-05-18T00:40:29.494141Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

145c5da4eb3beedd87a8160d9b3200d0101be59869e39d8e7ed245424884391b

Aliases

arxiv: 1707.03252 · arxiv_version: 1707.03252v1 · doi: 10.48550/arxiv.1707.03252 · pith_short_12: CROF3JHLHPXN · pith_short_16: CROF3JHLHPXN3B5I · pith_short_8: CROF3JHL

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/CROF3JHLHPXN3B5ICYGZWMQA2A \
  | 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: 145c5da4eb3beedd87a8160d9b3200d0101be59869e39d8e7ed245424884391b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6950b9ff0ab232b0f38f269bc9ac3dbc481ee96245385c0e57beff926eeb51cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-07-11T13:01:45Z",
    "title_canon_sha256": "11e9a6c5c6f40df04e1942494a023a4877be1b53e954ba813126e50d7c9e2638"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.03252",
    "kind": "arxiv",
    "version": 1
  }
}