Pith Number

pith:L3LEMGYS

pith:2025:L3LEMGYSR2RQ3VOOBXQ7CNREV7

not attested not anchored not stored refs pending

Efficient Difference-in-Differences and Event Study Estimators

Haitian Xie, Pedro H. C. Sant'Anna, Xiaohong Chen

arxiv:2506.17729 v1 · 2025-06-21 · econ.EM · 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{L3LEMGYSR2RQ3VOOBXQ7CNREV7}

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

3 papers in Pith

Robust Inference for Weighted Estimands

Group-Level Treatment Effect Heterogeneity in Difference-in-Differences: A Balanced Approach

Doubly Robust Instrumented Difference-in-Differences

Receipt and verification

First computed	2026-07-05T11:25:22.453426Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ed6461b128ea30dd5ce0de1f13624aff9ef36829b7d22ea48859a3352f2f21d

Aliases

arxiv: 2506.17729 · arxiv_version: 2506.17729v1 · doi: 10.48550/arxiv.2506.17729 · pith_short_12: L3LEMGYSR2RQ · pith_short_16: L3LEMGYSR2RQ3VOO · pith_short_8: L3LEMGYS

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/L3LEMGYSR2RQ3VOOBXQ7CNREV7 \
  | 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: 5ed6461b128ea30dd5ce0de1f13624aff9ef36829b7d22ea48859a3352f2f21d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d50427e95ac57b2c5d9d3b7161d770631d567b7620e54a47cc24a7d608a7793",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2025-06-21T15:04:54Z",
    "title_canon_sha256": "5a6b6389b532a4853af3e7c164fb3f6971e328937b33fe628b489192866b52c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.17729",
    "kind": "arxiv",
    "version": 1
  }
}