Pith Number

pith:HV6ZYHHC

pith:2025:HV6ZYHHC4HUZEPV6WGWGYTBLSV

not attested not anchored not stored refs pending

Large induced subgraph with a given pathwidth in outerplanar graphs

Hikaru Yokoi, Naoki Matsumoto, Takamasa Yashima

arxiv:2505.23162 v2 · 2025-05-29 · cs.DM · 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{HV6ZYHHC4HUZEPV6WGWGYTBLSV}

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	2026-06-10T01:08:27.956725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d7d9c1ce2e1e9923ebeb1ac6c4c2b954e697a8ced4a8e2574a7451e7a042fa7

Aliases

arxiv: 2505.23162 · arxiv_version: 2505.23162v2 · doi: 10.48550/arxiv.2505.23162 · pith_short_12: HV6ZYHHC4HUZ · pith_short_16: HV6ZYHHC4HUZEPV6 · pith_short_8: HV6ZYHHC

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/HV6ZYHHC4HUZEPV6WGWGYTBLSV \
  | 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: 3d7d9c1ce2e1e9923ebeb1ac6c4c2b954e697a8ced4a8e2574a7451e7a042fa7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c271093d980bc039efbb9d61e9c2e9d4fdaf3bd259d06a7fba91d2db0f8d6154",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2025-05-29T06:57:11Z",
    "title_canon_sha256": "fed2a971c393f6812fa6e1c3b2939d21642c7092445834a22e7eb2ef788a8a6b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.23162",
    "kind": "arxiv",
    "version": 2
  }
}