Pith Number

pith:Y7QOTFDQ

pith:2026:Y7QOTFDQLR4WXHGHQRRGAB7YP6

not attested not anchored not stored refs pending

Turn-Based Structural Triggers: Prompt-Free Backdoors in Multi-Turn LLMs

Cheng Hong, Jinwen He, Kai Chen, Ruigang Liang, Yingjun Zhang, Yiyang Lu, Yue Zhao

arxiv:2601.14340 v2 · 2026-01-20 · cs.CR · 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{Y7QOTFDQLR4WXHGHQRRGAB7YP6}

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	2026-05-26T01:03:22.781769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7e0e994705c796b9cc784626007f87f9ff33738d3268c078db23c7411e7b905

Aliases

arxiv: 2601.14340 · arxiv_version: 2601.14340v2 · doi: 10.48550/arxiv.2601.14340 · pith_short_12: Y7QOTFDQLR4W · pith_short_16: Y7QOTFDQLR4WXHGH · pith_short_8: Y7QOTFDQ

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/Y7QOTFDQLR4WXHGHQRRGAB7YP6 \
  | 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: c7e0e994705c796b9cc784626007f87f9ff33738d3268c078db23c7411e7b905

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25c2a1c57813bd405c4e2d97a1101a86bf732919d5e9934aaf0acd67aad668a1",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-01-20T13:47:42Z",
    "title_canon_sha256": "ce24adb4ad899f06228ebe155bae9cafeda07cd44011cfea655226d609985765"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.14340",
    "kind": "arxiv",
    "version": 2
  }
}