Pith Number

pith:XDRQR4LV

pith:2023:XDRQR4LVGNWD2QGKSLDTT3BUZ4

not attested not anchored not stored refs pending

An Empirical Study of Malicious Code In PyPI Ecosystem

Cheng Huang, Chengwei Liu, Wenbo Guo, Yang Liu, Yong Fang, Zhengzi Xu

arxiv:2309.11021 v1 · 2023-09-20 · 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{XDRQR4LVGNWD2QGKSLDTT3BUZ4}

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	2026-07-05T06:52:29.971162Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8e308f175336c3d40ca92c739ec34cf211a9e16910742e653580452e41adeca

Aliases

arxiv: 2309.11021 · arxiv_version: 2309.11021v1 · doi: 10.48550/arxiv.2309.11021 · pith_short_12: XDRQR4LVGNWD · pith_short_16: XDRQR4LVGNWD2QGK · pith_short_8: XDRQR4LV

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/XDRQR4LVGNWD2QGKSLDTT3BUZ4 \
  | 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: b8e308f175336c3d40ca92c739ec34cf211a9e16910742e653580452e41adeca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1abcb226883f9ef95ed764da17527fc6a462a70474ae8103f0fccafadbdfa2f9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2023-09-20T02:51:02Z",
    "title_canon_sha256": "639d9d63e46f5963e5387c93a7974f2909052a0e21c5c99fca41ddb873fd6074"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2309.11021",
    "kind": "arxiv",
    "version": 1
  }
}