Pith Number

pith:4BZW744F

pith:2019:4BZW744FCNETM3VRIUT7MYHJBQ

not attested not anchored not stored refs pending

Radon numbers and the fractional Helly theorem

Andreas F. Holmsen, Dong-Gyu Lee

arxiv:1903.01068 v1 · 2019-03-04 · 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{4BZW744FCNETM3VRIUT7MYHJBQ}

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	2026-05-17T23:52:12.395594Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0736ff3851349366eb14527f660e90c18529a41959a51cd0f9812ff2bdc8527

Aliases

arxiv: 1903.01068 · arxiv_version: 1903.01068v1 · doi: 10.48550/arxiv.1903.01068 · pith_short_12: 4BZW744FCNET · pith_short_16: 4BZW744FCNETM3VR · pith_short_8: 4BZW744F

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/4BZW744FCNETM3VRIUT7MYHJBQ \
  | 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: e0736ff3851349366eb14527f660e90c18529a41959a51cd0f9812ff2bdc8527

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebf69211689b0da56871ed6ce4483aa607b3026443df2419851e316dc987f6c5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-03-04T04:27:07Z",
    "title_canon_sha256": "e2e19252da7f8b8da28867dfdf48e64055957ffdcff9c0d1cdb491116132e89b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.01068",
    "kind": "arxiv",
    "version": 1
  }
}