Pith Number

pith:SWB7JNVY

pith:2011:SWB7JNVYZLKW3XFC6WK32Y3ULA

not attested not anchored not stored refs pending

First-order finite satisfiability vs tree automata in safety verification

Alexei Lisitsa

arxiv:1107.0349 v1 · 2011-07-02 · 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{SWB7JNVYZLKW3XFC6WK32Y3ULA}

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	2026-05-18T04:18:54.133731Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9583f4b6b8cad56ddca2f595bd637458099e12e00da7dbe7d52715c8160ef428

Aliases

arxiv: 1107.0349 · arxiv_version: 1107.0349v1 · doi: 10.48550/arxiv.1107.0349 · pith_short_12: SWB7JNVYZLKW · pith_short_16: SWB7JNVYZLKW3XFC · pith_short_8: SWB7JNVY

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/SWB7JNVYZLKW3XFC6WK32Y3ULA \
  | 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: 9583f4b6b8cad56ddca2f595bd637458099e12e00da7dbe7d52715c8160ef428

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ddcdae43227d5d95bd684dcf82504b50b1bbb1058407d6abf4d41d11b3b63c48",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2011-07-02T00:45:24Z",
    "title_canon_sha256": "ede364c6a7949f3b8f0ce8893647abee51d7c9edf693c5f8aa5ba1bea4163908"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.0349",
    "kind": "arxiv",
    "version": 1
  }
}