Pith Number

pith:N7QRJS4G

pith:2019:N7QRJS4G5G2ABLJIIZUVRXPLJ4

not attested not anchored not stored refs pending

Cross Validation for Penalized Quantile Regression with a Case-Weight Adjusted Solution Path

Haozhen Yu, Qiuyu Gu, Shanshan Tu, Yoonkyung Lee, Yunzhang Zhu

arxiv:1902.07770 v2 · 2019-02-20 · stat.ME · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N7QRJS4G5G2ABLJIIZUVRXPLJ4}

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	2026-07-05T09:41:24.861882Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fe114cb86e9b400ad28466958ddeb4f020f945d4eb5407d0332cd0035b58d2a

Aliases

arxiv: 1902.07770 · arxiv_version: 1902.07770v2 · doi: 10.48550/arxiv.1902.07770 · pith_short_12: N7QRJS4G5G2A · pith_short_16: N7QRJS4G5G2ABLJI · pith_short_8: N7QRJS4G

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/N7QRJS4G5G2ABLJIIZUVRXPLJ4 \
  | 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: 6fe114cb86e9b400ad28466958ddeb4f020f945d4eb5407d0332cd0035b58d2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f4bc5e188f84a1fdf6783d9546379dae437d0d423c914044eb420a4fa039445",
    "cross_cats_sorted": [
      "stat.CO"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2019-02-20T20:35:41Z",
    "title_canon_sha256": "387ae5c586c724eefeea17f23e84c78a579161026b8f1e31fe7da757d68582e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.07770",
    "kind": "arxiv",
    "version": 2
  }
}