Pith Number

pith:3NHKS4JZ

pith:2025:3NHKS4JZFTSVULOC563DCQGOW2

not attested not anchored not stored refs pending

Defense against Prompt Injection Attacks via Mixture of Encodings

David Sullivan, Kyle Jackson, Mei Chen, Pengtao Xie, Ruiyi Zhang

arxiv:2504.07467 v1 · 2025-04-10 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3NHKS4JZFTSVULOC563DCQGOW2}

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.

Cited by

1 paper in Pith

SkillScope: Toward Fine-Grained Least-Privilege Enforcement for Agent Skills

Receipt and verification

First computed	2026-07-05T10:47:09.479376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db4ea971392ce55a2dc2efb63140ceb6912837557d557c8ef2e8c6c370fd6990

Aliases

arxiv: 2504.07467 · arxiv_version: 2504.07467v1 · doi: 10.48550/arxiv.2504.07467 · pith_short_12: 3NHKS4JZFTSV · pith_short_16: 3NHKS4JZFTSVULOC · pith_short_8: 3NHKS4JZ

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/3NHKS4JZFTSVULOC563DCQGOW2 \
  | 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: db4ea971392ce55a2dc2efb63140ceb6912837557d557c8ef2e8c6c370fd6990

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2650d2f4557e80084dbc806c32a2adeec7070bbd2925abf20e9a62b43d87d350",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-04-10T05:35:21Z",
    "title_canon_sha256": "1012901b4f885cf69d1a693e0775e760e80e27e1217b551b9504ccee1e188472"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.07467",
    "kind": "arxiv",
    "version": 1
  }
}