Pith Number

pith:3QP4PMIG

pith:2018:3QP4PMIGYIF7JGYMGIDDEEVDGM

not attested not anchored not stored refs pending

Propensity score estimation using classification and regression trees in the presence of missing covariate data

Bas B.L. Penning de Vries, Maarten van Smeden, Rolf H.H. Groenwold

arxiv:1807.09462 v1 · 2018-07-25 · stat.ML · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3QP4PMIGYIF7JGYMGIDDEEVDGM}

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	2026-05-18T00:09:51.277972Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc1fc7b106c20bf49b0c32063212a33311026744f0ad74c314b17cfdf2387902

Aliases

arxiv: 1807.09462 · arxiv_version: 1807.09462v1 · doi: 10.48550/arxiv.1807.09462 · pith_short_12: 3QP4PMIGYIF7 · pith_short_16: 3QP4PMIGYIF7JGYM · pith_short_8: 3QP4PMIG

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/3QP4PMIGYIF7JGYMGIDDEEVDGM \
  | 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: dc1fc7b106c20bf49b0c32063212a33311026744f0ad74c314b17cfdf2387902

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8aa35c6f120828639947dd178e40d245ca4c0e967407dbf438243e80fea2e4ab",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2018-07-25T07:46:43Z",
    "title_canon_sha256": "8db4bad8fa1d34c82f898e166c2c753932f6099715df9bfe293fc08c5e249a42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.09462",
    "kind": "arxiv",
    "version": 1
  }
}