Pith Number

pith:Z3TWDYNB

pith:2026:Z3TWDYNB6WJE7OBTP2DB2FXJUV

not attested not anchored not stored refs pending

GradSentry: Gradient Spectral Entropy for Backdoor Sample Filtering in Large Language Model Fine-Tuning

Gongshen Liu, Haodong Zhao, Tianhang Zhao, Tianyi Xu, Zhuosheng Zhang

arxiv:2605.26574 v1 · 2026-05-26 · 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{Z3TWDYNB6WJE7OBTP2DB2FXJUV}

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	2026-05-27T01:05:26.742410Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cee761e1a1f5924fb8337e861d16e9a579886fcfafe54ff4acc352c101bc3b86

Aliases

arxiv: 2605.26574 · arxiv_version: 2605.26574v1 · doi: 10.48550/arxiv.2605.26574 · pith_short_12: Z3TWDYNB6WJE · pith_short_16: Z3TWDYNB6WJE7OBT · pith_short_8: Z3TWDYNB

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/Z3TWDYNB6WJE7OBTP2DB2FXJUV \
  | 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: cee761e1a1f5924fb8337e861d16e9a579886fcfafe54ff4acc352c101bc3b86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8cb59459cf7d2ad981902a0fe18a884c712772bfc0f95d23658324357259dc45",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-05-26T05:48:01Z",
    "title_canon_sha256": "f3136ffa4207e451b79af2c6841ebffa067b247e853485d4be10e72fa20c02e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.26574",
    "kind": "arxiv",
    "version": 1
  }
}