Pith Number

pith:CJFL2NQ5

pith:2025:CJFL2NQ5LRWLIXYJKNLG3X6OTT

not attested not anchored not stored refs pending

Has My System Prompt Been Used? Large Language Model Prompt Membership Inference

Abhimanyu Hans, Avi Schwarzschild, Roman Levin, Tom Goldstein, Valeriia Cherepanova

arxiv:2502.09974 v1 · 2025-02-14 · cs.AI · 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{CJFL2NQ5LRWLIXYJKNLG3X6OTT}

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

2 papers in Pith

Prompt Governance? On Governing Technologies Governed by Natural Language

Can You Keep a Secret? Involuntary Information Leakage in Language Model Writing

Receipt and verification

First computed	2026-07-05T10:14:15.473244Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

124abd361d5c6cb45f0953566ddfce9ccd08fa1a62e4b4adc57cfbcd097a4380

Aliases

arxiv: 2502.09974 · arxiv_version: 2502.09974v1 · doi: 10.48550/arxiv.2502.09974 · pith_short_12: CJFL2NQ5LRWL · pith_short_16: CJFL2NQ5LRWLIXYJ · pith_short_8: CJFL2NQ5

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/CJFL2NQ5LRWLIXYJKNLG3X6OTT \
  | 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: 124abd361d5c6cb45f0953566ddfce9ccd08fa1a62e4b4adc57cfbcd097a4380

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14f84e2852732fadf96e116210cbb6f19849794046f6685039bfe2600fba7ca4",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2025-02-14T08:00:42Z",
    "title_canon_sha256": "dbb55307cef7db02a6239ff80f2f328a6d8ce09023ac0d19d28da84136e0d8b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.09974",
    "kind": "arxiv",
    "version": 1
  }
}