Pith Number

pith:OU3IBEBO

pith:2024:OU3IBEBODLXZBRKAL4JG5UG6Z7

not attested not anchored not stored refs pending

Leak, Cheat, Repeat: Data Contamination and Evaluation Malpractices in Closed-Source LLMs

Mateusz Lango, Ond\v{r}ej Du\v{s}ek, Patr\'icia Schmidtov\'a, Simone Balloccu

arxiv:2402.03927 v2 · 2024-02-06 · cs.CL · 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{OU3IBEBODLXZBRKAL4JG5UG6Z7}

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

6 papers in Pith

The Reliability Gap in Benchmark Auditing: Distribution Shift and Scale as Failure Modes of Contamination Detection

Pretraining Data Exposure in Large Language Models: A Survey of Membership Inference, Data Contamination, and Security Implications

Interactive Evaluation Requires a Design Science

DecompSR: A dataset for decomposed analyses of compositional multihop spatial reasoning

Receipt and verification

First computed	2026-07-05T07:48:03.477648Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

753680902e1aef90c5405f126ed0decfecf84d2437185f2bde39ceb7cacdc62b

Aliases

arxiv: 2402.03927 · arxiv_version: 2402.03927v2 · doi: 10.48550/arxiv.2402.03927 · pith_short_12: OU3IBEBODLXZ · pith_short_16: OU3IBEBODLXZBRKA · pith_short_8: OU3IBEBO

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/OU3IBEBODLXZBRKAL4JG5UG6Z7 \
  | 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: 753680902e1aef90c5405f126ed0decfecf84d2437185f2bde39ceb7cacdc62b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29beb6563d01ec3dd62803741a085a1fd97b9de8d093b9ed03114a81ae1c37a9",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2024-02-06T11:54:23Z",
    "title_canon_sha256": "bd95dddbfeb7ce5a30476b00c647a1bd055f954bdfe3ad3150ef910e514d50aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2402.03927",
    "kind": "arxiv",
    "version": 2
  }
}