Pith Number

pith:Z2RLLVDA

pith:2023:Z2RLLVDATWT7WS5JUVCGQ5UL6N

not attested not anchored not stored refs pending

Punctuation Matters! Stealthy Backdoor Attack for Language Models

Piji Li, Xiangmao Chang, Xuan Sheng, Zhaoyang Han, Zhicheng Li

arxiv:2312.15867 v1 · 2023-12-26 · cs.CL · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z2RLLVDATWT7WS5JUVCGQ5UL6N}

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	2026-07-05T07:28:02.611472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cea2b5d4609da7fb4ba9a54468768bf37223761ccb98ce5f65257d2f0f91e482

Aliases

arxiv: 2312.15867 · arxiv_version: 2312.15867v1 · doi: 10.48550/arxiv.2312.15867 · pith_short_12: Z2RLLVDATWT7 · pith_short_16: Z2RLLVDATWT7WS5J · pith_short_8: Z2RLLVDA

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/Z2RLLVDATWT7WS5JUVCGQ5UL6N \
  | 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: cea2b5d4609da7fb4ba9a54468768bf37223761ccb98ce5f65257d2f0f91e482

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8653a78c4d68ece89a3a74a53b73c43eb4b9ad8426e1ebe6b7be0bcfa63f9c02",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2023-12-26T03:26:20Z",
    "title_canon_sha256": "d34d7c6d4df3aa67ff76bf519216b43bc3763971d11aaed2252d5ba0a9eb2cab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2312.15867",
    "kind": "arxiv",
    "version": 1
  }
}