Pith. sign in
Pith Number

pith:ZTVKZSMR

pith:2020:ZTVKZSMR24CMI7B2ZPC7UWUOLD
not attested not anchored not stored refs pending

Empirical Analysis of Unlabeled Entity Problem in Named Entity Recognition

Lemao Liu, Shuming Shi, Yangming Li

arxiv:2012.05426 v5 · 2020-12-10 · cs.CL

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{ZTVKZSMR24CMI7B2ZPC7UWUOLD}

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.

Cited by

1 paper in Pith

Receipt and verification
First computed 2026-07-05T02:24:12.549609Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

cceaacc991d704c47c3acbc5fa5a8e58f9c77d83a190834d275f0bf8a2ca85b5

Aliases

arxiv: 2012.05426 · arxiv_version: 2012.05426v5 · doi: 10.48550/arxiv.2012.05426 · pith_short_12: ZTVKZSMR24CM · pith_short_16: ZTVKZSMR24CMI7B2 · pith_short_8: ZTVKZSMR
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/ZTVKZSMR24CMI7B2ZPC7UWUOLD \
  | 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: cceaacc991d704c47c3acbc5fa5a8e58f9c77d83a190834d275f0bf8a2ca85b5
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "0e8d5ccdb25a3043513222573b8314d72433dcdb06f2dd23f7b704fb41d95feb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2020-12-10T02:53:59Z",
    "title_canon_sha256": "560b05c5e11ecc4cb6af663e2967e3de097ed21707b6b853935c06190436f559"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.05426",
    "kind": "arxiv",
    "version": 5
  }
}