Pith Number

pith:QA4WXKUV

pith:2014:QA4WXKUVCW25F3BWVSVTRSEMS7

not attested not anchored not stored refs pending

Some Ideas for Program Verifier Tactics

Gudmund Grov

arxiv:1406.2824 v1 · 2014-06-11 · cs.SE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QA4WXKUVCW25F3BWVSVTRSEMS7}

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	2026-05-18T02:49:54.972827Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80396baa9515b5d2ec36acab38c88c97c0207fe6fa42fd298b9019e5500908eb

Aliases

arxiv: 1406.2824 · arxiv_version: 1406.2824v1 · doi: 10.48550/arxiv.1406.2824 · pith_short_12: QA4WXKUVCW25 · pith_short_16: QA4WXKUVCW25F3BW · pith_short_8: QA4WXKUV

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/QA4WXKUVCW25F3BWVSVTRSEMS7 \
  | 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: 80396baa9515b5d2ec36acab38c88c97c0207fe6fa42fd298b9019e5500908eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "640fef41e9c609cb4e17f15917104a79c8bd373c7595edff303ec275548b17bb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2014-06-11T08:46:13Z",
    "title_canon_sha256": "88b481e7a8e4108224daaf723adbe6433980a22af56c8fb90e2c5a5642f97b78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.2824",
    "kind": "arxiv",
    "version": 1
  }
}