Pith Number

pith:7RKNLWMM

pith:2013:7RKNLWMM2FQ37VVTQV6YRXWK2D

not attested not anchored not stored refs pending

The Propensity Score Estimation in the Presence of Length-biased Sampling: A Nonparametric Adjustment Approach

Ashkan Ertefaie, David Stephens, Masoud Asgharian

arxiv:1311.1400 v1 · 2013-11-06 · math.ST · 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{7RKNLWMM2FQ37VVTQV6YRXWK2D}

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	2026-05-18T03:07:53.483486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc54d5d98cd161bfd6b3857d88decad0f7a3cfaf9b1fdc6cb32e56520ad6b7aa

Aliases

arxiv: 1311.1400 · arxiv_version: 1311.1400v1 · doi: 10.48550/arxiv.1311.1400 · pith_short_12: 7RKNLWMM2FQ3 · pith_short_16: 7RKNLWMM2FQ37VVT · pith_short_8: 7RKNLWMM

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/7RKNLWMM2FQ37VVTQV6YRXWK2D \
  | 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: fc54d5d98cd161bfd6b3857d88decad0f7a3cfaf9b1fdc6cb32e56520ad6b7aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3758d162e3ae8a48874e0fa3a9c17b29cd37e69e9d84378c624a53bcdc4fd2b",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2013-11-06T14:09:18Z",
    "title_canon_sha256": "79121ee7ed80a963f1e4c3058bc092800bc27dd679f4259d53638b4fa5c889f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.1400",
    "kind": "arxiv",
    "version": 1
  }
}