Pith Number

pith:2ZTEBBAV

pith:2012:2ZTEBBAVFOAISW3U2UTFOFLDKG

not attested not anchored not stored refs pending

A simple model of trees for unicellular maps

Eric Fusy (LIX), Guillaume Chapuy (LIAFA), Valentin F\'eray (LaBRI)

arxiv:1202.3252 v5 · 2012-02-15 · 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{2ZTEBBAVFOAISW3U2UTFOFLDKG}

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	2026-05-18T02:56:04.107741Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6664084152b80895b74d5265715635194508ea13d55204cd98d92b3b9f5f354

Aliases

arxiv: 1202.3252 · arxiv_version: 1202.3252v5 · doi: 10.48550/arxiv.1202.3252 · pith_short_12: 2ZTEBBAVFOAI · pith_short_16: 2ZTEBBAVFOAISW3U · pith_short_8: 2ZTEBBAV

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/2ZTEBBAVFOAISW3U2UTFOFLDKG \
  | 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: d6664084152b80895b74d5265715635194508ea13d55204cd98d92b3b9f5f354

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "068ff6619b391cd15b5ff98fd611421b2fb1c7988feae5d71104f21e5ec6085d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-02-15T09:59:11Z",
    "title_canon_sha256": "37d0b0c857b87724b1da3fbf38d71e711ea90b4f3d4c3ecbf89610e041744075"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.3252",
    "kind": "arxiv",
    "version": 5
  }
}