Pith Number

pith:E5WCOQ3W

pith:2019:E5WCOQ3WZOIWWDWYRDC7CZMAVL

not attested not anchored not stored refs pending

Causal Proportional Hazards Estimation with a Binary Instrumental Variable

(2) Department of Biostatistics, Behzad Kianian (1), Bioinformatics, Emory University, Jason P. Fine (2), Jung In Kim (2), Limin Peng (1) ((1) Department of Biostatistics, University of North Carolina at Chapel Hill)

arxiv:1901.11050 v1 · 2019-01-30 · 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{E5WCOQ3WZOIWWDWYRDC7CZMAVL}

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	2026-05-17T23:55:02.772777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

276c274376cb916b0ed888c5f16580aaf6cb8ee7bc57293ef6e9dc4be63240bb

Aliases

arxiv: 1901.11050 · arxiv_version: 1901.11050v1 · doi: 10.48550/arxiv.1901.11050 · pith_short_12: E5WCOQ3WZOIW · pith_short_16: E5WCOQ3WZOIWWDWY · pith_short_8: E5WCOQ3W

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/E5WCOQ3WZOIWWDWYRDC7CZMAVL \
  | 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: 276c274376cb916b0ed888c5f16580aaf6cb8ee7bc57293ef6e9dc4be63240bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2852eb3a8d07b239ef76b7b141cc0dd3435f1e8388dced30f24e37867ef59c52",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2019-01-30T19:06:44Z",
    "title_canon_sha256": "6ae8997a4d38ae81ae418ce1ea184b8a28a415cb4c7a75205eb8d74a17051ef4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.11050",
    "kind": "arxiv",
    "version": 1
  }
}