Pith Number

pith:C7HBOUC5

pith:2025:C7HBOUC5JJKCSNTECVL2PU5OQ7

not attested not anchored not stored refs pending

Character-Level Perturbations Disrupt LLM Watermarks

Asif Qumer Gill, Bo Liu, He Zhang, Leo Yu Zhang, Shirui Pan, Xiaomei Zhang, Yanjun Zhang, Zhaoxi Zhang

arxiv:2509.09112 v2 · 2025-09-11 · cs.CR · cs.AI

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C7HBOUC5JJKCSNTECVL2PU5OQ7}

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	2026-07-05T12:11:20.850734Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17ce17505d4a542936641557a7d3ae87ebdb99c73a7ff5cd65dca46fff51a16c

Aliases

arxiv: 2509.09112 · arxiv_version: 2509.09112v2 · doi: 10.48550/arxiv.2509.09112 · pith_short_12: C7HBOUC5JJKC · pith_short_16: C7HBOUC5JJKCSNTE · pith_short_8: C7HBOUC5

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/C7HBOUC5JJKCSNTECVL2PU5OQ7 \
  | 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: 17ce17505d4a542936641557a7d3ae87ebdb99c73a7ff5cd65dca46fff51a16c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7d0eb7332ddea310663fb559f9483201671128e7f0078b865eb97c32f10f063",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2025-09-11T02:50:07Z",
    "title_canon_sha256": "e12466ea74fedfa8426b633d3b9aeb74d4eb0a24d3fc5b1eab6b5fa1e6c28cd2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.09112",
    "kind": "arxiv",
    "version": 2
  }
}