Pith Number

pith:NJF73NXH

pith:2014:NJF73NXHX76LXRJRQVBGYKRQIP

not attested not anchored not stored refs pending

Controlled Natural Language Processing as Answer Set Programming: an Experiment

Rolf Schwitter

arxiv:1408.2466 v1 · 2014-07-15 · cs.CL · 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{NJF73NXHX76LXRJRQVBGYKRQIP}

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	2026-05-18T02:45:29.301914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a4bfdb6e7bffcbbc53185426c2a3043eb840d7ede192ec0b3084242a6e68503

Aliases

arxiv: 1408.2466 · arxiv_version: 1408.2466v1 · doi: 10.48550/arxiv.1408.2466 · pith_short_12: NJF73NXHX76L · pith_short_16: NJF73NXHX76LXRJR · pith_short_8: NJF73NXH

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/NJF73NXHX76LXRJRQVBGYKRQIP \
  | 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: 6a4bfdb6e7bffcbbc53185426c2a3043eb840d7ede192ec0b3084242a6e68503

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57862f570d083efadceee4d700a8c9b09e41656f109c302edb947a81502127e0",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2014-07-15T02:20:23Z",
    "title_canon_sha256": "48ef464f92c7be0a8311d4b6be398af670e1fa009523079417926226c855096d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.2466",
    "kind": "arxiv",
    "version": 1
  }
}