Pith Number

pith:VPKERVHH

pith:2021:VPKERVHHLF5WZQPJWR2S52QJP5

not attested not anchored not stored refs pending

BadPre: Task-agnostic Backdoor Attacks to Pre-trained NLP Foundation Models

Chun Fan, Jiwei Li, Kangjie Chen, Shangwei Guo, Tianwei Zhang, Xiaofei Sun, Yuxian Meng

arxiv:2110.02467 v1 · 2021-10-06 · cs.CL · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VPKERVHHLF5WZQPJWR2S52QJP5}

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

3 papers in Pith

When the Aggregator Cheats: Data-Free Backdoors in Federated LLM-based QA Systems

Token-Level Generalization in LoRA Adapter Backdoors: Attack Characterization and Behavioral Detection

BadDLM: Backdooring Diffusion Language Models with Diverse Targets

Receipt and verification

First computed	2026-07-05T03:20:26.466393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

abd448d4e7597b6cc1e9b4752eea097f53a1272ab9f8b6e779c8f29fa083a74c

Aliases

arxiv: 2110.02467 · arxiv_version: 2110.02467v1 · doi: 10.48550/arxiv.2110.02467 · pith_short_12: VPKERVHHLF5W · pith_short_16: VPKERVHHLF5WZQPJ · pith_short_8: VPKERVHH

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/VPKERVHHLF5WZQPJWR2S52QJP5 \
  | 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: abd448d4e7597b6cc1e9b4752eea097f53a1272ab9f8b6e779c8f29fa083a74c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e7d0515b11cc6fc78ecbabce81fe482832f574d536b9f81c112de8559fb4860",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-10-06T02:48:58Z",
    "title_canon_sha256": "a30d6aa895f63b0c630a4c3180c2280ff1ed91add2a5d94c3e91fc6aa6a543a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.02467",
    "kind": "arxiv",
    "version": 1
  }
}