Pith Number

pith:TFUB6DJO

pith:2018:TFUB6DJOZQPM37YZSQSNBXUCCR

not attested not anchored not stored refs pending

Variable selection via Group LASSO Approach : Application to the Cox Regression and frailty model

Jean Claude Utazirubanda, Papa Ngom, Tomas Leon

arxiv:1802.08622 v1 · 2018-02-23 · stat.CO · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TFUB6DJOZQPM37YZSQSNBXUCCR}

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	2026-05-18T00:22:41.021794Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99681f0d2ecc1ecdff199424d0de8214571e53cb7d75f35591028aafc5e7299e

Aliases

arxiv: 1802.08622 · arxiv_version: 1802.08622v1 · doi: 10.48550/arxiv.1802.08622 · pith_short_12: TFUB6DJOZQPM · pith_short_16: TFUB6DJOZQPM37YZ · pith_short_8: TFUB6DJO

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/TFUB6DJOZQPM37YZSQSNBXUCCR \
  | 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: 99681f0d2ecc1ecdff199424d0de8214571e53cb7d75f35591028aafc5e7299e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e106b8360622e930e5531f098422c8d027ce3fc8c29e33f384fbe082e3a4381c",
    "cross_cats_sorted": [
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2018-02-23T16:28:15Z",
    "title_canon_sha256": "b00f6a925c6668cf6eefca213f13c0eab1fe1dd2eb8d19d9a0125381805765a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.08622",
    "kind": "arxiv",
    "version": 1
  }
}