Pith Number

pith:XIVHXXOB

pith:2015:XIVHXXOBNPMG2JM2VVJXQQAYZN

not attested not anchored not stored refs pending

All Simple Venn Diagrams are Hamiltonian

Frank Ruskey, Gara Pruesse

arxiv:1504.06651 v1 · 2015-04-24 · 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{XIVHXXOBNPMG2JM2VVJXQQAYZN}

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	2026-05-18T02:17:52.875483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba2a7bddc16bd86d259aad53784018cb76470f33f21f2572048fab83253e3856

Aliases

arxiv: 1504.06651 · arxiv_version: 1504.06651v1 · doi: 10.48550/arxiv.1504.06651 · pith_short_12: XIVHXXOBNPMG · pith_short_16: XIVHXXOBNPMG2JM2 · pith_short_8: XIVHXXOB

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/XIVHXXOBNPMG2JM2VVJXQQAYZN \
  | 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: ba2a7bddc16bd86d259aad53784018cb76470f33f21f2572048fab83253e3856

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8712c63e862e5c74f3a3d1be40ebfe5f0809a9f3bf3b72a05a4a64985043f29",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-04-24T21:45:18Z",
    "title_canon_sha256": "bb17c1fa5f6330fb23aa136cd57067241bb912fb2587a8c7813614a5092b85af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.06651",
    "kind": "arxiv",
    "version": 1
  }
}