Pith Number

pith:LZBME6DJ

pith:2005:LZBME6DJQODJNE4JBADVA6IUAH

not attested not anchored not stored refs pending

The monadic second-order logic of graphs XVI : Canonical graph<br> decompositions

Bruno Courcelle

arxiv:cs/0510066 v3 · 2005-10-22 · 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{LZBME6DJQODJNE4JBADVA6IUAH}

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	2026-05-18T00:53:03.450684Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e42c278698386969389080750791401ecb06ce9397efb800bd3ff1b1790642a

Aliases

arxiv: cs/0510066 · arxiv_version: cs/0510066v3 · doi: 10.48550/arxiv.cs/0510066 · pith_short_12: LZBME6DJQODJ · pith_short_16: LZBME6DJQODJNE4J · pith_short_8: LZBME6DJ

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/LZBME6DJQODJNE4JBADVA6IUAH \
  | 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: 5e42c278698386969389080750791401ecb06ce9397efb800bd3ff1b1790642a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b0cc940de6c73b9fec932684dd21a23d9f7cd250795a7387086ab28780a7ee9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.LO",
    "submitted_at": "2005-10-22T13:09:38Z",
    "title_canon_sha256": "5da026f2b4ed2f700ec66dba09e4b4aa56ef03119dbfc68d0ed466f685755c6b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0510066",
    "kind": "arxiv",
    "version": 3
  }
}