Pith Number

pith:YBRNLPIS

pith:1997:YBRNLPISUK3ZONQZEZ6XWM645P

not attested not anchored not stored refs pending

Fast Statistical Parsing of Noun Phrases for Document Indexing

Chengxiang Zhai (Carnegie Mellon University)

arxiv:cmp-lg/9702009 v1 · 1997-02-12 · cmp-lg · 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{YBRNLPISUK3ZONQZEZ6XWM645P}

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.

Cited by

1 paper in Pith

ERU-KG: Efficient Reference-aligned Unsupervised Keyphrase Generation

Receipt and verification

First computed	2026-07-04T15:08:30.321356Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c062d5bd12a2b7973619267d7b33dcebc4a5f749a4b0e3cfe0434a0315e1627b

Aliases

arxiv: cmp-lg/9702009 · arxiv_version: cmp-lg/9702009v1 · doi: 10.48550/arxiv.cmp-lg/9702009 · pith_short_12: YBRNLPISUK3Z · pith_short_16: YBRNLPISUK3ZONQZ · pith_short_8: YBRNLPIS

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/YBRNLPISUK3ZONQZEZ6XWM645P \
  | 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: c062d5bd12a2b7973619267d7b33dcebc4a5f749a4b0e3cfe0434a0315e1627b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ef76d822a9ee191ca9c367e5fccb9c763edb96b8999bcab92af6a5a2188af70",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "",
    "primary_cat": "cmp-lg",
    "submitted_at": "1997-02-12T16:30:14Z",
    "title_canon_sha256": "c5e27fcf1996875b7d97af77ce6ba93a73b3cd691ce05a99de630cd2963fc89d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cmp-lg/9702009",
    "kind": "arxiv",
    "version": 1
  }
}