Pith Number

pith:PSRNV7UK

pith:2008:PSRNV7UKTH5JHJWAWSCSVDKHMI

not attested not anchored not stored refs pending

Compact Labelings For Efficient First-Order Model-Checking

Bruno Courcelle (LaBRI, Cyril Gavoille (LaBRI, INRIA Futurs), IUF), Mamadou Moustapha Kant\'e (LaBRI)

arxiv:0811.4713 v2 · 2008-11-28 · cs.DS · 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{PSRNV7UKTH5JHJWAWSCSVDKHMI}

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	2026-05-18T02:48:10.297829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ca2dafe8a99fa93a6c0b4852a8d476203fb3fc3d0a113396b11a957141b58cd

Aliases

arxiv: 0811.4713 · arxiv_version: 0811.4713v2 · doi: 10.48550/arxiv.0811.4713 · pith_short_12: PSRNV7UKTH5J · pith_short_16: PSRNV7UKTH5JHJWA · pith_short_8: PSRNV7UK

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/PSRNV7UKTH5JHJWAWSCSVDKHMI \
  | 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: 7ca2dafe8a99fa93a6c0b4852a8d476203fb3fc3d0a113396b11a957141b58cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62707e936041f910dbdffdefa3d7b0eba8bb803a4d0c5427065c31e0bacb585a",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2008-11-28T13:29:15Z",
    "title_canon_sha256": "583fae5d42b9d5bb8b0aac6126298f5033c9dd91b2e1c0d66e69629fe450ca9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.4713",
    "kind": "arxiv",
    "version": 2
  }
}