Pith Number

pith:U3JWRSMX

pith:2026:U3JWRSMXBWV3G5WYLODCHN435T

not attested not anchored not stored refs pending

Patcher: Post-Hoc Patching of Backdoored Large Language Models

Anjun Gao, Minghong Fang, Yueyang Quan, Yufei Xia, Zhuqing Liu

arxiv:2606.02995 v1 · 2026-06-02 · cs.CR · cs.AI · cs.IR · 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{U3JWRSMXBWV3G5WYLODCHN435T}

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	2026-06-03T01:05:28.812352Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6d368c9970dabb376d85b8623b79becff7551b7772a5fb8c2757e5d626dbb5f

Aliases

arxiv: 2606.02995 · arxiv_version: 2606.02995v1 · doi: 10.48550/arxiv.2606.02995 · pith_short_12: U3JWRSMXBWV3 · pith_short_16: U3JWRSMXBWV3G5WY · pith_short_8: U3JWRSMX

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/U3JWRSMXBWV3G5WYLODCHN435T \
  | 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: a6d368c9970dabb376d85b8623b79becff7551b7772a5fb8c2757e5d626dbb5f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec8abecc406d59848dc81732648853b8064871019588ed7ba69ddbd2290dad96",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.IR",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-06-02T01:11:58Z",
    "title_canon_sha256": "9fc119bcbaf73b2f71f779cb576bbe0e9bdecf3401b7c511d70c756dd69f29dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.02995",
    "kind": "arxiv",
    "version": 1
  }
}