Pith Number

pith:BM3BALL5

pith:2012:BM3BALL5LPLVCS6ODYU6U6ZLTM

not attested not anchored not stored refs pending

Which point sets admit a k-angulation?

David R. Wood, Jens M. Schmidt, Michael S. Payne

arxiv:1203.3618 v2 · 2012-03-16 · 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{BM3BALL5LPLVCS6ODYU6U6ZLTM}

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	2026-05-18T03:35:41.209967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b36102d7d5bd7514bce1e29ea7b2b9b0379c54e143c09f1f900adaf4bb8e059

Aliases

arxiv: 1203.3618 · arxiv_version: 1203.3618v2 · doi: 10.48550/arxiv.1203.3618 · pith_short_12: BM3BALL5LPLV · pith_short_16: BM3BALL5LPLVCS6O · pith_short_8: BM3BALL5

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/BM3BALL5LPLVCS6ODYU6U6ZLTM \
  | 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: 0b36102d7d5bd7514bce1e29ea7b2b9b0379c54e143c09f1f900adaf4bb8e059

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "195c9322b1070c06fda300491eb505dd3bb0316d9ca1a6cc816c932ba42d943c",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-03-16T05:57:17Z",
    "title_canon_sha256": "8b157090f4b028f6a6e7c51293a8a158f0e6974c9032a2ca67643b7d781debd8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.3618",
    "kind": "arxiv",
    "version": 2
  }
}