Pith Number

pith:O4K5CAX7

pith:2025:O4K5CAX7XKQKSAUWPPSIPQIBIK

not attested not anchored not stored refs pending

Trivial Trojans: How Minimal MCP Servers Enable Cross-Tool Exfiltration of Sensitive Data

Nicola Croce, Tobin South

arxiv:2507.19880 v1 · 2025-07-26 · 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{O4K5CAX7XKQKSAUWPPSIPQIBIK}

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

"What Happens Locally, Leaks Globally": Detecting Privacy Leakage Risks in MCP Servers

Receipt and verification

First computed	2026-07-05T11:43:44.213088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7715d102ffbaa0a902967be487c101429d293618ff3549efe6a58a3c5c78b005

Aliases

arxiv: 2507.19880 · arxiv_version: 2507.19880v1 · doi: 10.48550/arxiv.2507.19880 · pith_short_12: O4K5CAX7XKQK · pith_short_16: O4K5CAX7XKQKSAUW · pith_short_8: O4K5CAX7

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/O4K5CAX7XKQKSAUWPPSIPQIBIK \
  | 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: 7715d102ffbaa0a902967be487c101429d293618ff3549efe6a58a3c5c78b005

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd3e10c0d86b5eb95dfaf8e5268e64e74c938b85ca5a3193b186fccc96b37cfe",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2025-07-26T09:22:40Z",
    "title_canon_sha256": "910afd6e7ebdca7773e25980b364b74f1eb7f25164f86cbfd5bb706994f77658"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.19880",
    "kind": "arxiv",
    "version": 1
  }
}