Pith Number

pith:Q6UGRKCV

pith:2017:Q6UGRKCVM3ZWLZBDCXDOWSQARU

not attested not anchored not stored refs pending

Models for the Propensity Score that Contemplate the Positivity Assumption and their Application to Missing Data and Causality

Julieta Molina, Mariela Sued, Marina Valdora

arxiv:1704.01978 v3 · 2017-04-06 · stat.ME · 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{Q6UGRKCVM3ZWLZBDCXDOWSQARU}

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	2026-05-18T00:45:58.116389Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87a868a85566f365e42315c6eb4a008d1a962b07c6b5a6568d530fb040127c65

Aliases

arxiv: 1704.01978 · arxiv_version: 1704.01978v3 · doi: 10.48550/arxiv.1704.01978 · pith_short_12: Q6UGRKCVM3ZW · pith_short_16: Q6UGRKCVM3ZWLZBD · pith_short_8: Q6UGRKCV

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/Q6UGRKCVM3ZWLZBDCXDOWSQARU \
  | 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: 87a868a85566f365e42315c6eb4a008d1a962b07c6b5a6568d530fb040127c65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd30474956a1d197c3bdd9fd320e45c981cc916e2f0f791d98171fb8710ba106",
    "cross_cats_sorted": [
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2017-04-06T18:10:45Z",
    "title_canon_sha256": "b0cb93a2acd24fc416a35b67ec3409f9413fdc006aca9c0c3d99a2e8d8703f69"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.01978",
    "kind": "arxiv",
    "version": 3
  }
}