Pith Number

pith:4RV4Q7GX

pith:2026:4RV4Q7GXJZPQFPDW2CZU5KUENP

not attested not anchored not stored refs pending

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

Feifei Sun, Le Minh Nguyen, Ziyi Tong

arxiv:2605.26133 v1 · 2026-05-21 · cs.CL · cs.AI · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4RV4Q7GXJZPQFPDW2CZU5KUENP}

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.

Receipt and verification

First computed	2026-05-27T00:04:25.382720Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e46bc87cd74e5f02bc76d0b34eaa846bd4b2c2c40a66252d3ce6f93a1fb0c580

Aliases

arxiv: 2605.26133 · arxiv_version: 2605.26133v1 · doi: 10.48550/arxiv.2605.26133 · pith_short_12: 4RV4Q7GXJZPQ · pith_short_16: 4RV4Q7GXJZPQFPDW · pith_short_8: 4RV4Q7GX

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/4RV4Q7GXJZPQFPDW2CZU5KUENP \
  | 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: e46bc87cd74e5f02bc76d0b34eaa846bd4b2c2c40a66252d3ce6f93a1fb0c580

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7dadb6e66c0aaad4d01dc389f6c62101819b0dd52f60e7d3b95ad528463adbfd",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-05-21T10:32:33Z",
    "title_canon_sha256": "5b94f245c6b6af2433391eba533ac87a69afdc2a627255307ac54c934d224bc3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.26133",
    "kind": "arxiv",
    "version": 1
  }
}