Pith Number

pith:4IPELVTD

pith:2015:4IPELVTD4RA2GGOCROBKXI4JXQ

not attested not anchored not stored refs pending

Identification, Doubly Robust Estimation, and Semiparametric Efficiency Theory of Nonignorable Missing Data With a Shadow Variable

Eric Tchetgen Tchetgen, Lan Liu, Wang Miao, Zhi Geng

arxiv:1509.02556 v3 · 2015-09-08 · stat.ME

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4IPELVTD4RA2GGOCROBKXI4JXQ}

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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.

Cited by

3 papers in Pith

Missing Pattern Recognized Diffusion Imputation Model for Missing Not At Random

Efficient Nonparametric Inference for Mediation Analysis with Nonignorable Missing Confounders

Self-separated and self-connected models for mediator and outcome missingness in mediation analysis

Receipt and verification

First computed	2026-07-05T00:02:52.093751Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e21e45d663e441a319c28b82aba389bc39473644e409f0f83734c2a858b72d4e

Aliases

arxiv: 1509.02556 · arxiv_version: 1509.02556v3 · doi: 10.48550/arxiv.1509.02556 · pith_short_12: 4IPELVTD4RA2 · pith_short_16: 4IPELVTD4RA2GGOC · pith_short_8: 4IPELVTD

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/4IPELVTD4RA2GGOCROBKXI4JXQ \
  | 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: e21e45d663e441a319c28b82aba389bc39473644e409f0f83734c2a858b72d4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c25b05596e1abdcee6eb74f884979cc562eab6975f1c9dfbd4283241ed8bb859",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2015-09-08T20:59:05Z",
    "title_canon_sha256": "83e5f2865c98a3fc46194a2870cdc23ba272c86ed1fc3b20d928be0d31982100"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.02556",
    "kind": "arxiv",
    "version": 3
  }
}