Pith Number

pith:LQII66ZY

pith:2013:LQII66ZYSUVNHSVWKFRJ3OPTPC

not attested not anchored not stored refs pending

A bijection between unicellular and bicellular maps

Christian M. Reidys, Hillary S. W. Han

arxiv:1301.7177 v1 · 2013-01-30 · 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{LQII66ZYSUVNHSVWKFRJ3OPTPC}

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	2026-05-18T03:35:01.097717Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c108f7b38952ad3cab651629db9f378820d66399d87d875ec549b4c2a261b38

Aliases

arxiv: 1301.7177 · arxiv_version: 1301.7177v1 · doi: 10.48550/arxiv.1301.7177 · pith_short_12: LQII66ZYSUVN · pith_short_16: LQII66ZYSUVNHSVW · pith_short_8: LQII66ZY

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/LQII66ZYSUVNHSVWKFRJ3OPTPC \
  | 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: 5c108f7b38952ad3cab651629db9f378820d66399d87d875ec549b4c2a261b38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b1dc3b787d5acfbcfed0c774df0f652faed234e2b8a26277c2b1b75ed667d17",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-01-30T09:44:11Z",
    "title_canon_sha256": "bf4d179e0425cbb7255c62b4b7418444bd6b331f03371ef3e5565514627d8c62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.7177",
    "kind": "arxiv",
    "version": 1
  }
}