Pith Number

pith:LBFIZAAG

pith:2015:LBFIZAAGDGETI7CPRT7P6AQWM3

not attested not anchored not stored refs pending

Unsupervised Dependency Parsing: Let's Use Supervised Parsers

Phong Le, Willem Zuidema

arxiv:1504.04666 v1 · 2015-04-18 · cs.CL · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LBFIZAAGDGETI7CPRT7P6AQWM3}

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	2026-05-18T02:18:30.760709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

584a8c80061989347c4f8cfeff021666d3df73e758b74be00bd4199aafeba34d

Aliases

arxiv: 1504.04666 · arxiv_version: 1504.04666v1 · doi: 10.48550/arxiv.1504.04666 · pith_short_12: LBFIZAAGDGET · pith_short_16: LBFIZAAGDGETI7CP · pith_short_8: LBFIZAAG

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/LBFIZAAGDGETI7CPRT7P6AQWM3 \
  | 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: 584a8c80061989347c4f8cfeff021666d3df73e758b74be00bd4199aafeba34d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f022647a2282aa44c0aab7605e1f44d69e11d8cf16a586190b7b754b3aba59c4",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2015-04-18T00:23:16Z",
    "title_canon_sha256": "f59cbf618442e01b1f1b0e3701d3fd672305328d6725c467ed077f2d3c6318a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04666",
    "kind": "arxiv",
    "version": 1
  }
}