Pith Number

pith:KNQGQJE2

pith:2025:KNQGQJE2IECVUE6FRRXMDTT2TP

not attested not anchored not stored refs pending

NApy: Efficient Statistics in Python for Large-Scale Heterogeneous Data with Enhanced Support for Missing Data

Christian Fuchsberger, David B. Blumenthal, Fabian Woller, Lis Arend, Markus List

arxiv:2505.00448 v1 · 2025-05-01 · cs.MS · cs.DC · cs.PF

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KNQGQJE2IECVUE6FRRXMDTT2TP}

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	2026-07-05T10:57:13.816228Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

536068249a41055a13c58c6ec1ce7a9bfc2fbd6982eccaf958d6b315aba2f5ec

Aliases

arxiv: 2505.00448 · arxiv_version: 2505.00448v1 · doi: 10.48550/arxiv.2505.00448 · pith_short_12: KNQGQJE2IECV · pith_short_16: KNQGQJE2IECVUE6F · pith_short_8: KNQGQJE2

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/KNQGQJE2IECVUE6FRRXMDTT2TP \
  | 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: 536068249a41055a13c58c6ec1ce7a9bfc2fbd6982eccaf958d6b315aba2f5ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6797411cdd431f551456189ea55fc96b414140f6f3b55bd9d53ccce6aadca412",
    "cross_cats_sorted": [
      "cs.DC",
      "cs.PF"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2025-05-01T10:45:37Z",
    "title_canon_sha256": "d0282c2aa016a6a2d168d8a2167397919fd00a6332f5473c2dd41284f25cc7de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.00448",
    "kind": "arxiv",
    "version": 1
  }
}