Pith Number

pith:GNDR2QMJ

pith:2009:GNDR2QMJUASJUWTDVDAWYU3AFO

not attested not anchored not stored refs pending

Irreducible Triangulations are Small

David R. Wood, Gwena\"el Joret

arxiv:0907.1421 v2 · 2009-07-09 · 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{GNDR2QMJUASJUWTDVDAWYU3AFO}

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	2026-05-18T04:21:53.171081Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33471d4189a0249a5a63a8c16c53602b922108d47be32d4593e1d2080f34a7a1

Aliases

arxiv: 0907.1421 · arxiv_version: 0907.1421v2 · doi: 10.48550/arxiv.0907.1421 · pith_short_12: GNDR2QMJUASJ · pith_short_16: GNDR2QMJUASJUWTD · pith_short_8: GNDR2QMJ

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/GNDR2QMJUASJUWTDVDAWYU3AFO \
  | 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: 33471d4189a0249a5a63a8c16c53602b922108d47be32d4593e1d2080f34a7a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73624c47b41c09fdf46f28825b5b40361531b7cdb9fbd2dc7726da9958236525",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2009-07-09T07:23:28Z",
    "title_canon_sha256": "616c6514dd4c6fbb077c91ff038d6ac4d5c8758ce89676a3059280c42c471fb2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.1421",
    "kind": "arxiv",
    "version": 2
  }
}