Pith Number

pith:AI74WHNQ

pith:2017:AI74WHNQFFCQE5QHVK4VTQP3SR

not attested not anchored not stored refs pending

A Copula-based Imputation Model for Missing Data of Mixed Type in Multilevel Data Sets

Alan H. Welsh, Anton H. Westveld, Bronwyn Loong, Jiali Wang

arxiv:1702.08148 v1 · 2017-02-27 · 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{AI74WHNQFFCQE5QHVK4VTQP3SR}

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	2026-05-18T00:49:55.830669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

023fcb1db02945027607aab959c1fb94625d9a341aaf8d08b916160d840c7bb6

Aliases

arxiv: 1702.08148 · arxiv_version: 1702.08148v1 · doi: 10.48550/arxiv.1702.08148 · pith_short_12: AI74WHNQFFCQ · pith_short_16: AI74WHNQFFCQE5QH · pith_short_8: AI74WHNQ

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/AI74WHNQFFCQE5QHVK4VTQP3SR \
  | 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: 023fcb1db02945027607aab959c1fb94625d9a341aaf8d08b916160d840c7bb6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86583ac60d986bbaadaa430e99f0a2d20de14bd6fb4f3f296e03325e2676d43b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2017-02-27T05:02:58Z",
    "title_canon_sha256": "0aa6ac56d4aa44a5fb6a7e34066e452c8c7e0617dc0573adc42989d8ecd95e5d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.08148",
    "kind": "arxiv",
    "version": 1
  }
}