Pith Number

pith:MYVCEZQQ

pith:2015:MYVCEZQQPCW75FPM7ZZGPPMLMO

not attested not anchored not stored refs pending

Efficient computation of generalized Ising polynomials on graphs with fixed clique-width

Johann A. Makowsky, Tomer Kotek

arxiv:1505.06617 v1 · 2015-05-25 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MYVCEZQQPCW75FPM7ZZGPPMLMO}

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	2026-05-18T02:03:44.477671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

662a22661078adfe95ecfe7267bd8b6398fcdaa359cd0ca2707ed2843084b97a

Aliases

arxiv: 1505.06617 · arxiv_version: 1505.06617v1 · doi: 10.48550/arxiv.1505.06617 · pith_short_12: MYVCEZQQPCW7 · pith_short_16: MYVCEZQQPCW75FPM · pith_short_8: MYVCEZQQ

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/MYVCEZQQPCW75FPM7ZZGPPMLMO \
  | 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: 662a22661078adfe95ecfe7267bd8b6398fcdaa359cd0ca2707ed2843084b97a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7cf07fcd950d794a206a7805869965c2f8832aa53cf5df708294baea4298780",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2015-05-25T13:13:25Z",
    "title_canon_sha256": "33a69bf5f48e8306649ab8a75a27c2fc427938bb220a18d27178bb60eaab2497"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.06617",
    "kind": "arxiv",
    "version": 1
  }
}