Pith Number

pith:STLWVIN6

pith:2015:STLWVIN6KUFEH7EOIMPBCU2K7V

not attested not anchored not stored refs pending

Cops and robbers on planar directed graphs

Po-Shen Loh, Siyoung Oh

arxiv:1507.01023 v1 · 2015-07-03 · 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{STLWVIN6KUFEH7EOIMPBCU2K7V}

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	2026-05-18T01:37:18.376619Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94d76aa1be550a43fc8e431e11534afd49ca51692c4a92e4271c6c12ce796a03

Aliases

arxiv: 1507.01023 · arxiv_version: 1507.01023v1 · doi: 10.48550/arxiv.1507.01023 · pith_short_12: STLWVIN6KUFE · pith_short_16: STLWVIN6KUFEH7EO · pith_short_8: STLWVIN6

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/STLWVIN6KUFEH7EOIMPBCU2K7V \
  | 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: 94d76aa1be550a43fc8e431e11534afd49ca51692c4a92e4271c6c12ce796a03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7299363f678b32d93331f5ec5b9622804a49fb8e37075c0bfe3dcfff49b6e2ff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-07-03T20:29:58Z",
    "title_canon_sha256": "390149b401bd5d04a709707740517ace6eaedeb2a178ca3d38aae26f9729365a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.01023",
    "kind": "arxiv",
    "version": 1
  }
}