Pith Number

pith:ZW7ZO7OY

pith:2018:ZW7ZO7OYWDGBI5LVK4OENXR5K5

not attested not anchored not stored refs pending

A Corpus for Multilingual Document Classification in Eight Languages

Holger Schwenk, Xian Li

arxiv:1805.09821 v1 · 2018-05-24 · 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{ZW7ZO7OYWDGBI5LVK4OENXR5K5}

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	2026-05-18T00:14:59.027911Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdbf977dd8b0cc147575571c46de3d57470dc00ae15e3c90f54214ba8b4f6d49

Aliases

arxiv: 1805.09821 · arxiv_version: 1805.09821v1 · doi: 10.48550/arxiv.1805.09821 · pith_short_12: ZW7ZO7OYWDGB · pith_short_16: ZW7ZO7OYWDGBI5LV · pith_short_8: ZW7ZO7OY

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/ZW7ZO7OYWDGBI5LVK4OENXR5K5 \
  | 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: cdbf977dd8b0cc147575571c46de3d57470dc00ae15e3c90f54214ba8b4f6d49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "30218927a05c4a85c3ebf1c5cad000b8e2f7ffc09909f3e39e9f59e344eed371",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-05-24T10:36:20Z",
    "title_canon_sha256": "820743bc67dc8a77eaa227520cb397c1b5dc92815aad673f8035ddcfbac273f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.09821",
    "kind": "arxiv",
    "version": 1
  }
}