Pith Number

pith:NRN4MNED

pith:2016:NRN4MNEDLGMC2TJN6ME5I4RJRE

not attested not anchored not stored refs pending

Semiparametric Estimation with Data Missing Not at Random Using an Instrumental Variable

Baoluo Sun, Eric Tchetgen Tchetgen, James Robins, Kathleen Wirth, Lan Liu, Wang Miao

arxiv:1607.03197 v2 · 2016-07-11 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NRN4MNEDLGMC2TJN6ME5I4RJRE}

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	2026-05-17T23:56:00.757137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c5bc6348359982d4d2df309d4722989361fcf5cd5e1b4bdd5c542b111e59f18

Aliases

arxiv: 1607.03197 · arxiv_version: 1607.03197v2 · doi: 10.48550/arxiv.1607.03197 · pith_short_12: NRN4MNEDLGMC · pith_short_16: NRN4MNEDLGMC2TJN · pith_short_8: NRN4MNED

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/NRN4MNEDLGMC2TJN6ME5I4RJRE \
  | 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: 6c5bc6348359982d4d2df309d4722989361fcf5cd5e1b4bdd5c542b111e59f18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "213cbec3563151db16a7145477a9adbd837a96488964e8df61726fa56c005daa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2016-07-11T23:33:44Z",
    "title_canon_sha256": "27fdac7dc800a7445702b945a7fb22b7d0bdf9ad291d3cb2c72222bb2b40f9cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.03197",
    "kind": "arxiv",
    "version": 2
  }
}