Pith Number

pith:UGLSW7GR

pith:2012:UGLSW7GRN3QURN4ZY4CTH56U4J

not attested not anchored not stored refs pending

Vertex elimination orderings for hereditary graph classes

Kristina Vuskovic, Nicolas Trotignon, Pierre Aboulker, Pierre Charbit

arxiv:1205.2535 v3 · 2012-05-11 · cs.DM · 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{UGLSW7GRN3QURN4ZY4CTH56U4J}

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	2026-05-18T02:28:54.253494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1972b7cd16ee148b799c70533f7d4e2653ee11e93d2d06d7483fe38e9b944ec

Aliases

arxiv: 1205.2535 · arxiv_version: 1205.2535v3 · doi: 10.48550/arxiv.1205.2535 · pith_short_12: UGLSW7GRN3QU · pith_short_16: UGLSW7GRN3QURN4Z · pith_short_8: UGLSW7GR

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/UGLSW7GRN3QURN4ZY4CTH56U4J \
  | 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: a1972b7cd16ee148b799c70533f7d4e2653ee11e93d2d06d7483fe38e9b944ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "368cea6afe0af6227e8d53a5454e35458b35dd3e342e31e23488195d5ded7174",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2012-05-11T14:22:12Z",
    "title_canon_sha256": "28bbe12feb4cc0eb9957960ed6043d6e0915a66a5fe69c8d43afa2967d648fd4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.2535",
    "kind": "arxiv",
    "version": 3
  }
}