Pith Number

pith:LDZQBF5T

pith:2018:LDZQBF5TY3LQDBSBL6AFA6NYRY

not attested not anchored not stored refs pending

A corpus of precise natural textual entailment problems

Jean-Philippe Bernardy, Stergios Chatzikyriakidis

arxiv:1812.05813 v1 · 2018-12-14 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LDZQBF5TY3LQDBSBL6AFA6NYRY}

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	2026-05-17T23:58:18.131474Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58f30097b3c6d70186415f805079b88e1a5c514153cee3d093eec432e2a8bde3

Aliases

arxiv: 1812.05813 · arxiv_version: 1812.05813v1 · doi: 10.48550/arxiv.1812.05813 · pith_short_12: LDZQBF5TY3LQ · pith_short_16: LDZQBF5TY3LQDBSB · pith_short_8: LDZQBF5T

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/LDZQBF5TY3LQDBSBL6AFA6NYRY \
  | 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: 58f30097b3c6d70186415f805079b88e1a5c514153cee3d093eec432e2a8bde3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "721a0cae6fc3ff2619c79b922835ac0d34934ce878bd225e22d47f093abb9427",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-12-14T08:09:29Z",
    "title_canon_sha256": "258aaa29bab055319895b68ecaeb729b7461c0b9b43c4e4e2c7262f8f9bf9894"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.05813",
    "kind": "arxiv",
    "version": 1
  }
}