Pith Number

pith:YOOMDMGN

pith:2019:YOOMDMGNMYOX7GAU6JZEJIXVQG

not attested not anchored not stored refs pending

Named Entity Recognition with Partially Annotated Training Data

Chen-Tse Tsai, Dan Roth, Snigdha Chaturvedi, Stephen Mayhew

arxiv:1909.09270 v1 · 2019-09-20 · 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{YOOMDMGNMYOX7GAU6JZEJIXVQG}

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	2026-07-05T00:05:56.980628Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c39cc1b0cd661d7f9814f27244a2f5819c95a0742e485bb415c9ab810714a9c6

Aliases

arxiv: 1909.09270 · arxiv_version: 1909.09270v1 · doi: 10.48550/arxiv.1909.09270 · pith_short_12: YOOMDMGNMYOX · pith_short_16: YOOMDMGNMYOX7GAU · pith_short_8: YOOMDMGN

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/YOOMDMGNMYOX7GAU6JZEJIXVQG \
  | 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: c39cc1b0cd661d7f9814f27244a2f5819c95a0742e485bb415c9ab810714a9c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1e699833895c9aab7ff1e76a5a59274cfaee2649ba4ed0db603f160e39740c0",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-09-20T00:39:07Z",
    "title_canon_sha256": "53d9040ef4ee866c95c8ee721341e2f5d8a4aeff048c5d27d622d3745f003109"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.09270",
    "kind": "arxiv",
    "version": 1
  }
}