Pith Number

pith:YK2YXMNT

pith:2019:YK2YXMNTBYEWIVVHYNAGYS23VG

not attested not anchored not stored refs pending

The Ridge Path Estimator for Linear Instrumental Variables

Fallaw Sowell, Nandana Sengupta

arxiv:1908.09237 v1 · 2019-08-25 · econ.EM · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YK2YXMNTBYEWIVVHYNAGYS23VG}

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.

Cited by

1 paper in Pith

Cumulative Natural Direct and Indirect Effects for Causal Mediation Analysis

Receipt and verification

First computed	2026-07-04T23:59:37.924865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2b58bb1b30e096456a7c3406c4b5ba9a0017a9334a3a639e117f96b427278fb

Aliases

arxiv: 1908.09237 · arxiv_version: 1908.09237v1 · doi: 10.48550/arxiv.1908.09237 · pith_short_12: YK2YXMNTBYEW · pith_short_16: YK2YXMNTBYEWIVVH · pith_short_8: YK2YXMNT

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/YK2YXMNTBYEWIVVHYNAGYS23VG \
  | 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: c2b58bb1b30e096456a7c3406c4b5ba9a0017a9334a3a639e117f96b427278fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8be5e0286507e57161c606676808846389fc5d2803610383459bb6bebcdabfd",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2019-08-25T00:09:10Z",
    "title_canon_sha256": "d288a4806c13b9bc22176b020f0a3d47e4f3a359061c2c779b46368cb22daa8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.09237",
    "kind": "arxiv",
    "version": 1
  }
}