Pith Number

pith:2IQRZZON

pith:2021:2IQRZZONBRUK57EQOUUC3ZCCBJ

not attested not anchored not stored refs pending

Breaking BERT: Understanding its Vulnerabilities for Named Entity Recognition through Adversarial Attack

Anne Dirkson, Suzan Verberne, Wessel Kraaij

arxiv:2109.11308 v3 · 2021-09-23 · cs.CL · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2IQRZZONBRUK57EQOUUC3ZCCBJ}

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

2 papers in Pith

Safety at Scale: A Comprehensive Survey of Large Model and Agent Safety

Can Large Language Models Really Recognize Your Name?

Receipt and verification

First computed	2026-07-05T03:52:31.232842Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2211ce5cd0c68aefc9075282de4420a464a7c67178722e97987f050ec17e7d4

Aliases

arxiv: 2109.11308 · arxiv_version: 2109.11308v3 · doi: 10.48550/arxiv.2109.11308 · pith_short_12: 2IQRZZONBRUK · pith_short_16: 2IQRZZONBRUK57EQ · pith_short_8: 2IQRZZON

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/2IQRZZONBRUK57EQOUUC3ZCCBJ \
  | 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: d2211ce5cd0c68aefc9075282de4420a464a7c67178722e97987f050ec17e7d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b982a9faeb5b4e929ac6249ed1b88bdf37c609f39809672a8d771b9d4d4af95f",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-09-23T11:47:27Z",
    "title_canon_sha256": "3761c091ba5a35a08cc28a4954452fb7777860e451717673f1b36ce5ab71aac2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.11308",
    "kind": "arxiv",
    "version": 3
  }
}