Pith Number

pith:5DROYW3H

pith:2019:5DROYW3HF37RM4F6DD3YPMC6BU

not attested not anchored not stored refs pending

Patterns of Effects and Sensitivity Analysis for Differences-in-Differences

Colin B. Fogarty, Dylan S. Small, Jesse Y. Hsu, Luke J. Keele

arxiv:1901.01869 v2 · 2019-01-07 · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5DROYW3HF37RM4F6DD3YPMC6BU}

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	2026-05-17T23:54:58.545499Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8e2ec5b672eff1670be18f787b05e0d049f02ed3fd1e9649d35fc42a75750ba

Aliases

arxiv: 1901.01869 · arxiv_version: 1901.01869v2 · doi: 10.48550/arxiv.1901.01869 · pith_short_12: 5DROYW3HF37R · pith_short_16: 5DROYW3HF37RM4F6 · pith_short_8: 5DROYW3H

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/5DROYW3HF37RM4F6DD3YPMC6BU \
  | 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: e8e2ec5b672eff1670be18f787b05e0d049f02ed3fd1e9649d35fc42a75750ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f945caac1242656c5b2536db1f4573ee58e3db395a344318997a7d0929b14ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2019-01-07T15:07:06Z",
    "title_canon_sha256": "fbaf833cc853ff83ecec8b0938ccdad2874a4e4541c70b583c10f63971b3efa9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.01869",
    "kind": "arxiv",
    "version": 2
  }
}