Pith Number

pith:7PJ5XYA3

pith:2025:7PJ5XYA3SFPXW5SDLMPTDVM2WI

not attested not anchored not stored refs pending

Dataset Ownership Verification in Contrastive Pre-trained Models

Bingde Hu, Genlang Chen, Haofei Zhang, Jie Song, Mengqi Xue, Mingli Song, Xingen Wang, Yuechen Xie

arxiv:2502.07276 v1 · 2025-02-11 · cs.LG · cs.AI · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7PJ5XYA3SFPXW5SDLMPTDVM2WI}

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	2026-07-05T10:12:35.166876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbd3dbe01b915f7b76435b1f31d59ab238c25e91ec75a2d0cf6c84f9bb330a71

Aliases

arxiv: 2502.07276 · arxiv_version: 2502.07276v1 · doi: 10.48550/arxiv.2502.07276 · pith_short_12: 7PJ5XYA3SFPX · pith_short_16: 7PJ5XYA3SFPXW5SD · pith_short_8: 7PJ5XYA3

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/7PJ5XYA3SFPXW5SDLMPTDVM2WI \
  | 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: fbd3dbe01b915f7b76435b1f31d59ab238c25e91ec75a2d0cf6c84f9bb330a71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0558686b8d1529297591ad4ef68eef32d19a33be1cdcdd96cb6f5e1c7569c67",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-02-11T05:42:21Z",
    "title_canon_sha256": "71956605bffccbc883c5470f125907e7d0c53e09d26ed5bd9189f94e8d636171"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.07276",
    "kind": "arxiv",
    "version": 1
  }
}