Pith Number

pith:2UQ3DJ6S

pith:2021:2UQ3DJ6STTWDT2F6RUTIBI4DZB

not attested not anchored not stored refs pending

Named Entity Recognition with Small Strongly Labeled and Large Weakly Labeled Data

Bing Yin, Danqing Zhang, Haoming Jiang, Tianyu Cao, Tuo Zhao

arxiv:2106.08977 v2 · 2021-06-16 · cs.CL · cs.AI · 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{2UQ3DJ6STTWDT2F6RUTIBI4DZB}

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	2026-07-05T03:02:16.534092Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d521b1a7d29cec39e8be8d2680a383c85e3be5bbb96ee2214b9bd950078f347d

Aliases

arxiv: 2106.08977 · arxiv_version: 2106.08977v2 · doi: 10.48550/arxiv.2106.08977 · pith_short_12: 2UQ3DJ6STTWD · pith_short_16: 2UQ3DJ6STTWDT2F6 · pith_short_8: 2UQ3DJ6S

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/2UQ3DJ6STTWDT2F6RUTIBI4DZB \
  | 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: d521b1a7d29cec39e8be8d2680a383c85e3be5bbb96ee2214b9bd950078f347d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08d6a9cccdf77758722578af40d3ac4cee555c23e1f2d436204cf640f5f4522e",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-06-16T17:18:14Z",
    "title_canon_sha256": "65b3c2867d3f2f75fc6dbfacf51d9e2bbc5f859b4c41b7f56150dd2e0603379f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.08977",
    "kind": "arxiv",
    "version": 2
  }
}