Pith Number

pith:QTA3KCAA

pith:2016:QTA3KCAAAKGYNWNFRDXZKXKOKN

not attested not anchored not stored refs pending

Expressive Completeness of Existential Rule Languages for Ontology-based Query Answering

Heng Zhang, Jia-Huai You, Yan Zhang

arxiv:1604.05006 v2 · 2016-04-18 · cs.AI · cs.DB · 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{QTA3KCAAAKGYNWNFRDXZKXKOKN}

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	2026-05-18T01:16:09.015853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84c1b50800028d86d9a588ef955d4e535beea5e61530b1f37179d0f9e1d49a27

Aliases

arxiv: 1604.05006 · arxiv_version: 1604.05006v2 · doi: 10.48550/arxiv.1604.05006 · pith_short_12: QTA3KCAAAKGY · pith_short_16: QTA3KCAAAKGYNWNF · pith_short_8: QTA3KCAA

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/QTA3KCAAAKGYNWNFRDXZKXKOKN \
  | 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: 84c1b50800028d86d9a588ef955d4e535beea5e61530b1f37179d0f9e1d49a27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "501cbefa7f79ae535ad3c70d6720f39a4b1a821f788dd07a270117f7ca7eddd8",
    "cross_cats_sorted": [
      "cs.DB",
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2016-04-18T06:16:49Z",
    "title_canon_sha256": "c61ed2e3f7654bcfca441f384c6f374e8d1d60cc41637ee53f08819a13ecef85"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.05006",
    "kind": "arxiv",
    "version": 2
  }
}