Pith Number

pith:OZGMY2P6

pith:2026:OZGMY2P65MH7EZC3JP7HYAGJQ6

not attested not anchored not stored refs pending

PhantomSkill: Malicious Code Injection in Agent Skill Ecosystems

Chia-Mu Yu, Yu-Ting Lin

arxiv:2606.19191 v1 · 2026-06-17 · 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{OZGMY2P65MH7EZC3JP7HYAGJQ6}

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

Cloak and Detonate: Scanner Evasion and Dynamic Detection of Agent Skill Malware

Receipt and verification

First computed	2026-06-19T16:12:07.485746Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

764ccc69feeb0ff2645b4bfe7c00c9879702b6b70ace805326b18944542f4f4f

Aliases

arxiv: 2606.19191 · arxiv_version: 2606.19191v1 · doi: 10.48550/arxiv.2606.19191 · pith_short_12: OZGMY2P65MH7 · pith_short_16: OZGMY2P65MH7EZC3 · pith_short_8: OZGMY2P6

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/OZGMY2P65MH7EZC3JP7HYAGJQ6 \
  | 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: 764ccc69feeb0ff2645b4bfe7c00c9879702b6b70ace805326b18944542f4f4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e0ab66047dcd895d4b0d69801e45f8052854f08562e8893cd18cb9ad8520009",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-06-17T15:33:41Z",
    "title_canon_sha256": "ced70b01ff3f67d7762925d1853a527a9c9cfa297589f9ac7f8bf9a0d4c504ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.19191",
    "kind": "arxiv",
    "version": 1
  }
}