Pith Number

pith:LWYLFP2P

pith:2015:LWYLFP2PBF33RK277K3E5DFPQZ

not attested not anchored not stored refs pending

A model-theoretic characterization of monadic second order logic on infinite words

Samuel J. van Gool, Silvio Ghilardi

arxiv:1503.08936 v2 · 2015-03-31 · math.LO · cs.FL · 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{LWYLFP2PBF33RK277K3E5DFPQZ}

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	2026-05-18T01:16:02.859961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5db0b2bf4f0977b8ab5ffab64e8caf86581f44fc324e710a7c8323cbbd73caee

Aliases

arxiv: 1503.08936 · arxiv_version: 1503.08936v2 · doi: 10.48550/arxiv.1503.08936 · pith_short_12: LWYLFP2PBF33 · pith_short_16: LWYLFP2PBF33RK27 · pith_short_8: LWYLFP2P

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/LWYLFP2PBF33RK277K3E5DFPQZ \
  | 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: 5db0b2bf4f0977b8ab5ffab64e8caf86581f44fc324e710a7c8323cbbd73caee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d96bb32e26054f7e862e5b6f7adf9255f884f20103618b9693c407329d177b13",
    "cross_cats_sorted": [
      "cs.FL",
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2015-03-31T07:22:11Z",
    "title_canon_sha256": "fdb13f1eeeb85d2439838abdad8b7b2f7068175e28da82136225773135c94424"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.08936",
    "kind": "arxiv",
    "version": 2
  }
}