Pith Number

pith:ZDFNJQHD

pith:2025:ZDFNJQHDBQRPZZ2AZKWXZ7LX7S

not attested not anchored not stored refs pending

On the Possibility of Breaking Copyleft Licenses When Reusing Code Generated by ChatGPT

Daniela Micucci, Gaia Colombo, Leonardo Mariani, Oliviero Riganelli

arxiv:2502.05023 v1 · 2025-02-07 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZDFNJQHDBQRPZZ2AZKWXZ7LX7S}

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	2026-07-05T10:11:01.762504Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8cad4c0e30c22fce740caad7cfd77fcb6c75f4c50349c990cafc302d74237e3

Aliases

arxiv: 2502.05023 · arxiv_version: 2502.05023v1 · doi: 10.48550/arxiv.2502.05023 · pith_short_12: ZDFNJQHDBQRP · pith_short_16: ZDFNJQHDBQRPZZ2A · pith_short_8: ZDFNJQHD

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/ZDFNJQHDBQRPZZ2AZKWXZ7LX7S \
  | 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: c8cad4c0e30c22fce740caad7cfd77fcb6c75f4c50349c990cafc302d74237e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90ebe5c7003ad6cb8d43df10c76c7a401f3b3f2a4392b5d8797919265e228fee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2025-02-07T15:54:37Z",
    "title_canon_sha256": "94539561b86e352eea998d998f0d55ee2f66ed69037d1deeff1f1324c219eec0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.05023",
    "kind": "arxiv",
    "version": 1
  }
}