Pith Number

pith:ZFCMUMWH

pith:2015:ZFCMUMWHADBQNVEOWS7BJINBNI

not attested not anchored not stored refs pending

Partitioning orthogonal polygons into at most 8-vertex pieces, with application to an art gallery theorem

Ervin Gy\H{o}ri, Tam\'as R\'obert Mezei

arxiv:1509.05227 v4 · 2015-09-17 · math.CO · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZFCMUMWHADBQNVEOWS7BJINBNI}

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	2026-05-18T00:41:48.068359Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c944ca32c700c306d48eb4be14a1a16a0fc87db5940fc8bcfb7ca268a23f62ae

Aliases

arxiv: 1509.05227 · arxiv_version: 1509.05227v4 · doi: 10.48550/arxiv.1509.05227 · pith_short_12: ZFCMUMWHADBQ · pith_short_16: ZFCMUMWHADBQNVEO · pith_short_8: ZFCMUMWH

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/ZFCMUMWHADBQNVEOWS7BJINBNI \
  | 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: c944ca32c700c306d48eb4be14a1a16a0fc87db5940fc8bcfb7ca268a23f62ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8149336638a9c21dc15057b6b18e1c06255af580030f8b0b1c05cd548b5608c0",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-09-17T12:09:26Z",
    "title_canon_sha256": "c5c4ef01b0792775038b995653770765a591d87cc4c7c46086b4afac3c37b098"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.05227",
    "kind": "arxiv",
    "version": 4
  }
}