Pith Number

pith:4PIZWGDZ

pith:2002:4PIZWGDZ2MZEJ2OXZ2L4NAVGZX

not attested not anchored not stored refs pending

Querying Databases of Annotated Speech

Steve Cassidy, Steven Bird

arxiv:cs/0204026 v1 · 2002-04-11 · cs.CL · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4PIZWGDZ2MZEJ2OXZ2L4NAVGZX}

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	2026-07-04T14:24:16.791604Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3d19b1879d33244e9d7ce97c682a6cdfdc1afae0485b9e4fe3ed500ad95ec14

Aliases

arxiv: cs/0204026 · arxiv_version: cs/0204026v1 · doi: 10.48550/arxiv.cs/0204026 · pith_short_12: 4PIZWGDZ2MZE · pith_short_16: 4PIZWGDZ2MZEJ2OX · pith_short_8: 4PIZWGDZ

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/4PIZWGDZ2MZEJ2OXZ2L4NAVGZX \
  | 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: e3d19b1879d33244e9d7ce97c682a6cdfdc1afae0485b9e4fe3ed500ad95ec14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4681fc3132a8bf4e47a48a5f582b8c859916ff72cae191d3ebe09993d886469c",
    "cross_cats_sorted": [
      "cs.DB"
    ],
    "license": "",
    "primary_cat": "cs.CL",
    "submitted_at": "2002-04-11T16:43:57Z",
    "title_canon_sha256": "dca4f897a739ac6e59b5ab60f5f43990a7a1b0045ef98957cdb1c18e7d306c01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0204026",
    "kind": "arxiv",
    "version": 1
  }
}