Pith Number

pith:NUGLAP4Z

pith:2007:NUGLAP4Z3SJV7IIYVC4YZUHA4G

not attested not anchored not stored refs pending

Graph Operations on Clique-Width Bounded Graphs

Frank Gurski

arxiv:cs/0701185 v3 · 2007-01-29 · cs.DS · 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{NUGLAP4Z3SJV7IIYVC4YZUHA4G}

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	2026-05-18T01:12:53.467506Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d0cb03f99dc935fa118a8b98cd0e0e18915b9e365505d4a9c2dd1344efd4d59

Aliases

arxiv: cs/0701185 · arxiv_version: cs/0701185v3 · doi: 10.48550/arxiv.cs/0701185 · pith_short_12: NUGLAP4Z3SJV · pith_short_16: NUGLAP4Z3SJV7IIY · pith_short_8: NUGLAP4Z

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/NUGLAP4Z3SJV7IIYVC4YZUHA4G \
  | 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: 6d0cb03f99dc935fa118a8b98cd0e0e18915b9e365505d4a9c2dd1344efd4d59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "217c78fb9ab2a9ea764344352945ec2eb42784b05f66f983e604360c927e1e8f",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2007-01-29T14:36:25Z",
    "title_canon_sha256": "246c0af04b570cc680aea8eaea11f029a011ff812cfb47a7b1f05e827ef0b1a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0701185",
    "kind": "arxiv",
    "version": 3
  }
}