Pith Number

pith:TRNETWZY

pith:2020:TRNETWZY5OHZCK7PTLV7H7HPBR

not attested not anchored not stored refs pending

Missing at Random or Not: A Semiparametric Testing Approach

Cheng Yong Tang, C. Jason Liang, Pamela Shaw, Rui Duan, Yong Chen

arxiv:2003.11181 v1 · 2020-03-25 · stat.ME · econ.EM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TRNETWZY5OHZCK7PTLV7H7HPBR}

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	2026-07-05T00:50:31.803768Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c5a49db38eb8f912bef9aebf3fcef0c50b5211189e44ec67970d5ae6ef59b67

Aliases

arxiv: 2003.11181 · arxiv_version: 2003.11181v1 · doi: 10.48550/arxiv.2003.11181 · pith_short_12: TRNETWZY5OHZ · pith_short_16: TRNETWZY5OHZCK7P · pith_short_8: TRNETWZY

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/TRNETWZY5OHZCK7PTLV7H7HPBR \
  | 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: 9c5a49db38eb8f912bef9aebf3fcef0c50b5211189e44ec67970d5ae6ef59b67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "500480792469028b2fe96e9232ce5a0aca866a41e61145ca5ace93c5177c9eb1",
    "cross_cats_sorted": [
      "econ.EM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2020-03-25T02:09:42Z",
    "title_canon_sha256": "f327534b0d6c5a1324c26624351c6a5f1d82f301a79c025435ced00357cdaea3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.11181",
    "kind": "arxiv",
    "version": 1
  }
}