Pith Number

pith:6O4BEMM2

pith:2018:6O4BEMM2N3IE5RG3IHQQGV5TJD

not attested not anchored not stored refs pending

How Cox models react to a study-specific confounder in a patient-level pooled dataset: Random-effects better cope with an imbalanced covariate across trials unless baseline hazards differ

Aaron Crowley, Akiko Maehara, Bjorn Redfors, Dominic Francese, Gary Mintz, Gregg Stone, Maria Alu, Mordechai Golomb, Ori Ben-Yehuda, Paul Jenkins, Shmuel Chen, Thomas McAndrew, Yiran Zhang

arxiv:1805.02821 v1 · 2018-05-08 · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6O4BEMM2N3IE5RG3IHQQGV5TJD}

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	2026-05-18T00:16:35.588345Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3b812319a6ed04ec4db41e10357b348fd3cefbe0f332604081ee3c57d9cc245

Aliases

arxiv: 1805.02821 · arxiv_version: 1805.02821v1 · doi: 10.48550/arxiv.1805.02821 · pith_short_12: 6O4BEMM2N3IE · pith_short_16: 6O4BEMM2N3IE5RG3 · pith_short_8: 6O4BEMM2

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/6O4BEMM2N3IE5RG3IHQQGV5TJD \
  | 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: f3b812319a6ed04ec4db41e10357b348fd3cefbe0f332604081ee3c57d9cc245

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e4858fc2e9a328a73e328012140f1f1b404e184c4a5db4dee489d06e6b97ecd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2018-05-08T03:51:59Z",
    "title_canon_sha256": "409af12ede74a331c0e0a3a604fde6664a2aebdebe77875c70e2687bbb1c28a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.02821",
    "kind": "arxiv",
    "version": 1
  }
}