Pith Number

pith:GJC7VWKI

pith:2019:GJC7VWKIWRETLVPNDGLF6KITRJ

not attested not anchored not stored refs pending

Subgraph Isomorphism on Graph Classes that Exclude a Substructure

Hans L. Bodlaender, Tesshu Hanaka, Tom C. van der Zanden, Yasuaki Kobayashi, Yoshio Okamoto, Yota Otachi, Yusuke Kobayashi

arxiv:1905.10670 v1 · 2019-05-25 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GJC7VWKIWRETLVPNDGLF6KITRJ}

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	2026-05-17T23:45:05.612130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3245fad948b44935d5ed19965f29138a7a19f7061a867285a8680e1afe83d01b

Aliases

arxiv: 1905.10670 · arxiv_version: 1905.10670v1 · doi: 10.48550/arxiv.1905.10670 · pith_short_12: GJC7VWKIWRET · pith_short_16: GJC7VWKIWRETLVPN · pith_short_8: GJC7VWKI

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/GJC7VWKIWRETLVPNDGLF6KITRJ \
  | 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: 3245fad948b44935d5ed19965f29138a7a19f7061a867285a8680e1afe83d01b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c881874cf48e880f959390f58846fa7cdd3e9d4576071c0655e4384fe8c8242c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-05-25T20:29:32Z",
    "title_canon_sha256": "b8679f5b51b9d77b76890bcea69daff3673216c9455850f978565678dfdba925"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.10670",
    "kind": "arxiv",
    "version": 1
  }
}