Pith Number

pith:L7HFTOXU

pith:2018:L7HFTOXU7FYOKSWXW6FZGCJ3DO

not attested not anchored not stored refs pending

Parsing Tweets into Universal Dependencies

Bing Qin, Nathan Schneider, Noah A. Smith, Wanxiang Che, Yijia Liu, Yi Zhu

arxiv:1804.08228 v1 · 2018-04-23 · 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{L7HFTOXU7FYOKSWXW6FZGCJ3DO}

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	2026-05-18T00:17:49.142091Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fce59baf4f970e54ad7b78b93093b1b92069e30fcb52da3da3cad33f4b663f3

Aliases

arxiv: 1804.08228 · arxiv_version: 1804.08228v1 · doi: 10.48550/arxiv.1804.08228 · pith_short_12: L7HFTOXU7FYO · pith_short_16: L7HFTOXU7FYOKSWX · pith_short_8: L7HFTOXU

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/L7HFTOXU7FYOKSWXW6FZGCJ3DO \
  | 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: 5fce59baf4f970e54ad7b78b93093b1b92069e30fcb52da3da3cad33f4b663f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "231bb82aafb309085f651aeeb11f7599915efcda697233a51a81deab16fdd025",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-04-23T02:38:20Z",
    "title_canon_sha256": "1e176c9180b91e2fa18e461de842aae210ddbb2ff49f396433f09bde7c86fc6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08228",
    "kind": "arxiv",
    "version": 1
  }
}