Pith Number

pith:POOXS57H

pith:1995:POOXS57HY525NF44YO5XBRZ3AR

not attested not anchored not stored refs pending

Learning Unification-Based Natural Language Grammars

England), Miles Osborne (Dept. of Computer Science, University of York, York

arxiv:cmp-lg/9502002 v1 · 1995-02-03 · 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{POOXS57HY525NF44YO5XBRZ3AR}

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	2026-05-18T01:07:24.258705Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b9d7977e7c775d6979cc3bb70c73b0473c3b84162362a1a22b96e2511995fe3

Aliases

arxiv: cmp-lg/9502002 · arxiv_version: cmp-lg/9502002v1 · doi: 10.48550/arxiv.cmp-lg/9502002 · pith_short_12: POOXS57HY525 · pith_short_16: POOXS57HY525NF44 · pith_short_8: POOXS57H

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/POOXS57HY525NF44YO5XBRZ3AR \
  | 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: 7b9d7977e7c775d6979cc3bb70c73b0473c3b84162362a1a22b96e2511995fe3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "210928fa429452cd75414eff4542059cc581c7379a66774b74151ffd1c600746",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "",
    "primary_cat": "cmp-lg",
    "submitted_at": "1995-02-03T12:17:28Z",
    "title_canon_sha256": "c0a0549e2031e9a0ede3883dcef75a721191409b6de47c2c94a8f7bd7f5679c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cmp-lg/9502002",
    "kind": "arxiv",
    "version": 1
  }
}