Pith Number

pith:X4GWF5CO

pith:2017:X4GWF5COWK56HGQBNOWGB5ITHO

not attested not anchored not stored refs pending

Black-box Testing of First-Order Logic Ontologies Using WordNet

German Rigau, Javier \'Alvez, Paqui Lucio

arxiv:1705.10217 v3 · 2017-05-29 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X4GWF5COWK56HGQBNOWGB5ITHO}

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	2026-05-18T00:20:22.184803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf0d62f44eb2bbe39a016bac60f5133ba2b6d7f932ccc7ca7e8ca1e67a60c616

Aliases

arxiv: 1705.10217 · arxiv_version: 1705.10217v3 · doi: 10.48550/arxiv.1705.10217 · pith_short_12: X4GWF5COWK56 · pith_short_16: X4GWF5COWK56HGQB · pith_short_8: X4GWF5CO

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/X4GWF5COWK56HGQBNOWGB5ITHO \
  | 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: bf0d62f44eb2bbe39a016bac60f5133ba2b6d7f932ccc7ca7e8ca1e67a60c616

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "217fa513c871785a9865dbd96d690da72b7acefbcbcda03788c7010e1a0212b1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2017-05-29T14:41:20Z",
    "title_canon_sha256": "09baf5de25aa1e0bebfd7043a8f306e5cda134e10a05b1d5185a8f8b97d448b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.10217",
    "kind": "arxiv",
    "version": 3
  }
}