Pith Number

pith:AZZZJBQM

pith:2018:AZZZJBQMOLDTVFJKZIFMREE5XF

not attested not anchored not stored refs pending

Characterization by forbidden induced subgraphs of some subclasses of chordal graphs

S\'ergio H. Nogueira, Vinicius F. dos Santos

arxiv:1803.07684 v1 · 2018-03-20 · cs.DM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AZZZJBQMOLDTVFJKZIFMREE5XF}

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	2026-05-18T00:20:29.266539Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

067394860c72c73a952aca0ac8909db973fc5c961237220d2929c1f50f2cd9df

Aliases

arxiv: 1803.07684 · arxiv_version: 1803.07684v1 · doi: 10.48550/arxiv.1803.07684 · pith_short_12: AZZZJBQMOLDT · pith_short_16: AZZZJBQMOLDTVFJK · pith_short_8: AZZZJBQM

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/AZZZJBQMOLDTVFJKZIFMREE5XF \
  | 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: 067394860c72c73a952aca0ac8909db973fc5c961237220d2929c1f50f2cd9df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d7ca2006b77430e06347d1edb43b369bcaa9e60604d07de739a5e4f8d1dfddb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2018-03-20T22:54:58Z",
    "title_canon_sha256": "775fa2ab97a8785b1a18ddd0d62f4a7dd5130d197c467ccd390cb97c552bb45a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.07684",
    "kind": "arxiv",
    "version": 1
  }
}