Pith Number

pith:SGUMAJX2

pith:2026:SGUMAJX2I4FWR6FCJVARJOXMQY

not attested not anchored not stored refs pending

"Someone Hid It": Query-Agnostic Black-Box Attacks on LLM-Based Retrieval

Chenxiao Yu, Defu Cao, Jiate Li, Li Li, Ryan A. Rossi, Tiannuo Yang, Wei Yang, Xiyang Hu, Yan Liu, Yuehan Qin, Yue Zhao

arxiv:2602.00364 v4 · 2026-01-30 · 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{SGUMAJX2I4FWR6FCJVARJOXMQY}

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	2026-05-20T00:00:32.985139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91a8c026fa470b68f8a24d4114baec863871e608c6ec5aaceb8e8d75a8edce0b

Aliases

arxiv: 2602.00364 · arxiv_version: 2602.00364v4 · doi: 10.48550/arxiv.2602.00364 · pith_short_12: SGUMAJX2I4FW · pith_short_16: SGUMAJX2I4FWR6FC · pith_short_8: SGUMAJX2

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/SGUMAJX2I4FWR6FCJVARJOXMQY \
  | 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: 91a8c026fa470b68f8a24d4114baec863871e608c6ec5aaceb8e8d75a8edce0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31c9f04a39149619ec7c8b40967d7b74c34d4acf58ee85177d448a9da8dcee4f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-01-30T22:28:04Z",
    "title_canon_sha256": "8455c4d19cdf8ee7bafa82c7b3f9930da4b8a61df5bea1211b2f7d6a8a73d434"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.00364",
    "kind": "arxiv",
    "version": 4
  }
}