Pith Number

pith:LEIY6PFE

pith:2017:LEIY6PFE5NDJNQILZV24PIFY36

not attested not anchored not stored refs pending

A Tidy Data Model for Natural Language Processing using cleanNLP

Taylor Arnold

arxiv:1703.09570 v2 · 2017-03-27 · cs.CL · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LEIY6PFE5NDJNQILZV24PIFY36}

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	2026-05-18T00:16:56.533962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59118f3ca4eb4696c10bcd75c7a0b8df9cbec7d9c789036daeaa5f01bf7e83a9

Aliases

arxiv: 1703.09570 · arxiv_version: 1703.09570v2 · doi: 10.48550/arxiv.1703.09570 · pith_short_12: LEIY6PFE5NDJ · pith_short_16: LEIY6PFE5NDJNQIL · pith_short_8: LEIY6PFE

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/LEIY6PFE5NDJNQILZV24PIFY36 \
  | 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: 59118f3ca4eb4696c10bcd75c7a0b8df9cbec7d9c789036daeaa5f01bf7e83a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8dabe9244506cc8339589fa45858b028a05a889f4aa61a812122f6dcfa06f112",
    "cross_cats_sorted": [
      "stat.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2017-03-27T02:18:36Z",
    "title_canon_sha256": "36d2f1f612f8cdbb178a954b585dd9cff5d923ccbf01135cc64f80bcca809fd1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.09570",
    "kind": "arxiv",
    "version": 2
  }
}