Pith Number

pith:XERZER2Z

pith:2011:XERZER2ZGMBSKS4MEKCJFLUVX6

not attested not anchored not stored refs pending

Clique Separator Decomposition of Hole- and Diamond-Free Graphs and Algorithmic Consequences

Andreas Brandst\"adt, Vassilis Giakoumakis

arxiv:1105.2874 v1 · 2011-05-14 · 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{XERZER2ZGMBSKS4MEKCJFLUVX6}

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	2026-05-18T04:22:01.845395Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9239247593303254b8c228492ae95bfbedfe2ef8e3fac7087315f431bd0c8a4

Aliases

arxiv: 1105.2874 · arxiv_version: 1105.2874v1 · doi: 10.48550/arxiv.1105.2874 · pith_short_12: XERZER2ZGMBS · pith_short_16: XERZER2ZGMBSKS4M · pith_short_8: XERZER2Z

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/XERZER2ZGMBSKS4MEKCJFLUVX6 \
  | 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: b9239247593303254b8c228492ae95bfbedfe2ef8e3fac7087315f431bd0c8a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2d7f6b199b4dbb418c12d628c8ffef331130716a36de5ca864cfd7ab00980d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2011-05-14T08:54:32Z",
    "title_canon_sha256": "c37d1ac14c20e6a271c4d4188c84a7c91bab96e7c142cd5f81b9c447c68b176d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.2874",
    "kind": "arxiv",
    "version": 1
  }
}