Pith Number

pith:PO2VD3DG

pith:2013:PO2VD3DGV2YH6NAE67ZGK4FWYB

not attested not anchored not stored refs pending

Automatic lexical semantic classification of nouns

Lauren Romeo, Muntsa Padr\'o, N\'uria Bel

arxiv:1303.1930 v1 · 2013-03-08 · 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{PO2VD3DGV2YH6NAE67ZGK4FWYB}

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	2026-05-18T03:31:31.954445Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bb551ec66aeb07f3404f7f26570b6c0686821f3ad36b2a920c35985cda37eee

Aliases

arxiv: 1303.1930 · arxiv_version: 1303.1930v1 · doi: 10.48550/arxiv.1303.1930 · pith_short_12: PO2VD3DGV2YH · pith_short_16: PO2VD3DGV2YH6NAE · pith_short_8: PO2VD3DG

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/PO2VD3DGV2YH6NAE67ZGK4FWYB \
  | 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: 7bb551ec66aeb07f3404f7f26570b6c0686821f3ad36b2a920c35985cda37eee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57e5c3ec12a62d044793ce4e364a35c4b81ae27faded702f1404877abfee315e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2013-03-08T10:14:04Z",
    "title_canon_sha256": "038411c4ea981499d7a8cad879ec80df1ecf79556611dc811cded92d002fe2d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.1930",
    "kind": "arxiv",
    "version": 1
  }
}