Pith Number

pith:F6UQC3U6

pith:2026:F6UQC3U6E6QOM5U564JNNBWHGG

not attested not anchored not stored refs pending

From Internal Diagnosis to External Auditing: A VLM-Driven Paradigm for Data-Free Online Backdoor Defense

Binyan Xu, Di Tang, Fan Yang, Kehuan Zhang, Xilin Dai

arxiv:2601.19448 v2 · 2026-01-27 · cs.LG · 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{F6UQC3U6E6QOM5U564JNNBWHGG}

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	2026-06-01T01:02:30.416308Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fa9016e9e27a0e6769df712d686c7318b7ea41e27a4d11bff45b038e0aba202

Aliases

arxiv: 2601.19448 · arxiv_version: 2601.19448v2 · doi: 10.48550/arxiv.2601.19448 · pith_short_12: F6UQC3U6E6QO · pith_short_16: F6UQC3U6E6QOM5U5 · pith_short_8: F6UQC3U6

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/F6UQC3U6E6QOM5U564JNNBWHGG \
  | 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: 2fa9016e9e27a0e6769df712d686c7318b7ea41e27a4d11bff45b038e0aba202

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9246d69f568d2cbd8cf7f3b82391e07817f0edfd7260023c18fc970d76a4881",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-01-27T10:34:06Z",
    "title_canon_sha256": "c07ab50972eb36f72cd4bc04d75d44e9cca3a655e4853b7e401b81f0011acec3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.19448",
    "kind": "arxiv",
    "version": 2
  }
}