Pith Number

pith:JJ4AJIJE

pith:2017:JJ4AJIJEN7POE26SLVEVPTIRRT

not attested not anchored not stored refs pending

Chi-boundedness of graph classes excluding wheel vertex-minors

Hojin Choi, O-joung Kwon, Paul Wollan, Sang-il Oum

arxiv:1702.07851 v3 · 2017-02-25 · 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{JJ4AJIJEN7POE26SLVEVPTIRRT}

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	2026-05-17T23:56:25.315714Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a7804a1246fdee26bd25d4957cd118ccfa837a5b6b1b2491c09a23149a6a69b

Aliases

arxiv: 1702.07851 · arxiv_version: 1702.07851v3 · doi: 10.48550/arxiv.1702.07851 · pith_short_12: JJ4AJIJEN7PO · pith_short_16: JJ4AJIJEN7POE26S · pith_short_8: JJ4AJIJE

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/JJ4AJIJEN7POE26SLVEVPTIRRT \
  | 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: 4a7804a1246fdee26bd25d4957cd118ccfa837a5b6b1b2491c09a23149a6a69b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e6fae743a4948594269851f984a3c2e393170d50cbe8de3b997544e33fa8ca3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-02-25T08:11:39Z",
    "title_canon_sha256": "a1ea47d419b3529d6c4840b810fdd014d0c5ff308f3bd4ee240ab9cd48a73b7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.07851",
    "kind": "arxiv",
    "version": 3
  }
}