Pith Number

pith:4Q7CP2SC

pith:2012:4Q7CP2SCQCIMPMWPN2SRO46B23

not attested not anchored not stored refs pending

A Principled Approach to Grammars for Controlled Natural Languages and Predictive Editors

Tobias Kuhn

arxiv:1211.3643 v1 · 2012-11-15 · 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{4Q7CP2SCQCIMPMWPN2SRO46B23}

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	2026-05-18T03:31:29.223462Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e43e27ea428090c7b2cf6ea51773c1d6ddbf97c8a72085e2e483dc94f3a87e78

Aliases

arxiv: 1211.3643 · arxiv_version: 1211.3643v1 · doi: 10.48550/arxiv.1211.3643 · pith_short_12: 4Q7CP2SCQCIM · pith_short_16: 4Q7CP2SCQCIMPMWP · pith_short_8: 4Q7CP2SC

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/4Q7CP2SCQCIMPMWPN2SRO46B23 \
  | 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: e43e27ea428090c7b2cf6ea51773c1d6ddbf97c8a72085e2e483dc94f3a87e78

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "909858954e81b12d879343db2c7f60e21588d7cbb37d4bade868fd24c83991f4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2012-11-15T16:24:25Z",
    "title_canon_sha256": "8b7cee91612576fc164d15201b68ff8d1525a3f9615262f46b016698a708d030"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.3643",
    "kind": "arxiv",
    "version": 1
  }
}