Pith Number

pith:3L2HJXP4

pith:2026:3L2HJXP4BXKIT3Q7MODPLU6B4G

not attested not anchored not stored refs pending

Combating Data Laundering in LLM Training

Feng Liu, Muxing Li, Sharon Li, Zesheng Ye

arxiv:2604.01904 v2 · 2026-04-02 · 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{3L2HJXP4BXKIT3Q7MODPLU6B4G}

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	2026-05-29T02:05:44.151203Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

daf474ddfc0dd489ee1f6386f5d3c1e1a8cd08b462a5533c28ec599c12511717

Aliases

arxiv: 2604.01904 · arxiv_version: 2604.01904v2 · doi: 10.48550/arxiv.2604.01904 · pith_short_12: 3L2HJXP4BXKI · pith_short_16: 3L2HJXP4BXKIT3Q7 · pith_short_8: 3L2HJXP4

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/3L2HJXP4BXKIT3Q7MODPLU6B4G \
  | 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: daf474ddfc0dd489ee1f6386f5d3c1e1a8cd08b462a5533c28ec599c12511717

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ca247c6849c621acd1e5ef22424cdef2696c3a9dc1ee2e2863cf08e5660ae69",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-04-02T11:19:49Z",
    "title_canon_sha256": "a7bddefc960448db626ab16f960d7ac9086ae91a0266abd765d2fd8b00c87c51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.01904",
    "kind": "arxiv",
    "version": 2
  }
}