Pith Number

pith:OJHJENGR

pith:2026:OJHJENGR7YDBRGGWMTFBA4RU2K

not attested not anchored not stored refs pending

Benign on Label, Malicious by Design: Clean-Label Dormant-to-Activated Backdoor via Machine Unlearning with Removable Camouflage

Baogang Song, Can Li, Dongdong Zhao, Fan He, Qihang Ge, Xiang Yao

arxiv:2607.27936 v1 · 2026-07-30 · 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{OJHJENGR7YDBRGGWMTFBA4RU2K}

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	2026-07-31T01:34:50.501840Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

724e9234d1fe061898d664ca107234d29a1fc535e574f11355281360e5ebea30

Aliases

arxiv: 2607.27936 · arxiv_version: 2607.27936v1 · doi: 10.48550/arxiv.2607.27936 · pith_short_12: OJHJENGR7YDB · pith_short_16: OJHJENGR7YDBRGGW · pith_short_8: OJHJENGR

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/OJHJENGR7YDBRGGWMTFBA4RU2K \
  | 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: 724e9234d1fe061898d664ca107234d29a1fc535e574f11355281360e5ebea30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "831c8e040dc76059d0f012514442291dbfa3f4a619a1f62eeb56e7a4c4007e03",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-07-30T09:46:02Z",
    "title_canon_sha256": "a69b05963b9ef928fbf3f9e1a5a7800078e2a87134064402174a3fd4ee4af858"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.27936",
    "kind": "arxiv",
    "version": 1
  }
}