Pith Number

pith:CHMP3YTQ

pith:2013:CHMP3YTQSS345ZARQCGQQORRG4

not attested not anchored not stored refs pending

Seven mutually touching infinite cylinders

Lajos R\'onyai, S\'andor Boz\'oki, Tsung-Lin Lee

arxiv:1308.5164 v2 · 2013-08-23 · math.MG · 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{CHMP3YTQSS345ZARQCGQQORRG4}

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	2026-05-18T00:35:09.707095Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11d8fde27094b7cee411808d083a31373f74b7b90f31b902fb45fd6daab2dd86

Aliases

arxiv: 1308.5164 · arxiv_version: 1308.5164v2 · doi: 10.48550/arxiv.1308.5164 · pith_short_12: CHMP3YTQSS34 · pith_short_16: CHMP3YTQSS345ZAR · pith_short_8: CHMP3YTQ

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/CHMP3YTQSS345ZARQCGQQORRG4 \
  | 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: 11d8fde27094b7cee411808d083a31373f74b7b90f31b902fb45fd6daab2dd86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52efef0db0bbc7e47df2c251dcaf948080ee71c4264686845e0898a200c99147",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2013-08-23T15:59:00Z",
    "title_canon_sha256": "767062b267ee7cc94b5950b012422f1efc556319c1199e7408900e8fa0c091fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.5164",
    "kind": "arxiv",
    "version": 2
  }
}