Pith Number

pith:P6BMCJP6

pith:2019:P6BMCJP6OCSGPC4FS3Q7A7FQ3I

not attested not anchored not stored refs pending

Re-Evaluating Strengthened-IV Designs: Asymptotic Efficiency, Bias Formula, and the Validity and Power of Sensitivity Analyses

Bo Zhang, Dylan S. Small, Scott A. Lorch, Siyu Heng, Xu Han

arxiv:1911.09171 v3 · 2019-11-20 · stat.ME · stat.AP

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P6BMCJP6OCSGPC4FS3Q7A7FQ3I}

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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.

Receipt and verification

First computed	2026-07-05T03:23:03.945152Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f82c125fe70a4678b8596e1f07cb0da27d91b4c3fcb9963b95305808715a6ed

Aliases

arxiv: 1911.09171 · arxiv_version: 1911.09171v3 · doi: 10.48550/arxiv.1911.09171 · pith_short_12: P6BMCJP6OCSG · pith_short_16: P6BMCJP6OCSGPC4F · pith_short_8: P6BMCJP6

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/P6BMCJP6OCSGPC4FS3Q7A7FQ3I \
  | 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: 7f82c125fe70a4678b8596e1f07cb0da27d91b4c3fcb9963b95305808715a6ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8c2a0b297f43c84a62ca7228351a60fb341fd255a55747897f48f46ef479509",
    "cross_cats_sorted": [
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2019-11-20T21:07:16Z",
    "title_canon_sha256": "7efb97b88d89bfdb722d07f8bc3d6e5cfc7ad5666e1a854a395ad01f8d9dd60c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.09171",
    "kind": "arxiv",
    "version": 3
  }
}