Pith Number

pith:SC2GXYQK

pith:2011:SC2GXYQKG55NANZ4R66VZO7FGS

not attested not anchored not stored refs pending

Finite countermodels for safety verification of parameterized tree systems

Alexei Lisitsa

arxiv:1107.5142 v1 · 2011-07-26 · 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{SC2GXYQKG55NANZ4R66VZO7FGS}

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	2026-05-18T04:16:52.966952Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90b46be20a377ad0373c8fbd5cbbe534a24da42594ef889a73729ccd46e8c986

Aliases

arxiv: 1107.5142 · arxiv_version: 1107.5142v1 · doi: 10.48550/arxiv.1107.5142 · pith_short_12: SC2GXYQKG55N · pith_short_16: SC2GXYQKG55NANZ4 · pith_short_8: SC2GXYQK

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/SC2GXYQKG55NANZ4R66VZO7FGS \
  | 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: 90b46be20a377ad0373c8fbd5cbbe534a24da42594ef889a73729ccd46e8c986

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f1bc168348c3b519840b301a7d260d3be68540226cdd64ba4f1634b445691fc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2011-07-26T09:25:35Z",
    "title_canon_sha256": "117c070b634ee29d63d1a5f0d155afb63f3e98ccf7c241e7c81f932b37bead3a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.5142",
    "kind": "arxiv",
    "version": 1
  }
}