Pith Number

pith:KTQTZXH4

pith:2014:KTQTZXH4FQR76MLEFTIVU52P4X

not attested not anchored not stored refs pending

Identifiability of Subgroup Causal Effects in Randomized Experiments with Nonignorable Missing Covariates

Peng Ding, Zhi Geng

arxiv:1401.1264 v1 · 2014-01-07 · math.ST · stat.AP · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KTQTZXH4FQR76MLEFTIVU52P4X}

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	2026-05-18T03:03:09.224400Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54e13cdcfc2c23ff31642cd15a774fe5edaa55f9e9c598acfab82a32d874bd4f

Aliases

arxiv: 1401.1264 · arxiv_version: 1401.1264v1 · doi: 10.48550/arxiv.1401.1264 · pith_short_12: KTQTZXH4FQR7 · pith_short_16: KTQTZXH4FQR76MLE · pith_short_8: KTQTZXH4

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/KTQTZXH4FQR76MLEFTIVU52P4X \
  | 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: 54e13cdcfc2c23ff31642cd15a774fe5edaa55f9e9c598acfab82a32d874bd4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afebdeecaa0da4e87e3c2ec2ceba9539490e73abfd1aebb4e883da210469795a",
    "cross_cats_sorted": [
      "stat.AP",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2014-01-07T04:18:22Z",
    "title_canon_sha256": "4dc6af2b531cba2d9ff4dd18f3e0838751ae9c1db8445d0d40deff89183ee5e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.1264",
    "kind": "arxiv",
    "version": 1
  }
}