Pith Number

pith:ENKIIH62

pith:2017:ENKIIH62427HAFUBUFMR3ASRXD

not attested not anchored not stored refs pending

The Impact of Confounder Selection in Propensity Scores for Rare Events Data - with Applications to Birth Defects

Christina D. Chambers, Jue Hou, Ronghui Xu

arxiv:1702.07009 v1 · 2017-02-22 · 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{ENKIIH62427HAFUBUFMR3ASRXD}

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	2026-05-18T00:50:08.679018Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2354841fdae6be701681a1591d8251b8d2de2fc1c92cfaf086baeafb72a45309

Aliases

arxiv: 1702.07009 · arxiv_version: 1702.07009v1 · doi: 10.48550/arxiv.1702.07009 · pith_short_12: ENKIIH62427H · pith_short_16: ENKIIH62427HAFUB · pith_short_8: ENKIIH62

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/ENKIIH62427HAFUBUFMR3ASRXD \
  | 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: 2354841fdae6be701681a1591d8251b8d2de2fc1c92cfaf086baeafb72a45309

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55fc819d3321f929932a3d88375f03ad67b9d5a9f99f36bbcc60a9e19f5f456a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2017-02-22T21:21:54Z",
    "title_canon_sha256": "93c67a28fb496ffc3d706776ca372411adf7b5b7386538162eba16a47baca79a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.07009",
    "kind": "arxiv",
    "version": 1
  }
}