Pith Number

pith:5QCSUSMC

pith:2024:5QCSUSMCQBRJVJQU567HVT4WIK

not attested not anchored not stored refs pending

Difference-in-Differences with Unpoolable Data

Erin Strumpf, Matthew D. Webb, Nichole Austin, Sunny Karim

arxiv:2403.15910 v3 · 2024-03-23 · econ.EM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5QCSUSMCQBRJVJQU567HVT4WIK}

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

Good Controls Gone Bad: Difference-in-Differences with Covariates

Receipt and verification

First computed	2026-07-05T11:42:52.432714Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec052a498280629aa614efbe7acf96429a6dca4ddd75949c8d3edd622cc51c87

Aliases

arxiv: 2403.15910 · arxiv_version: 2403.15910v3 · doi: 10.48550/arxiv.2403.15910 · pith_short_12: 5QCSUSMCQBRJ · pith_short_16: 5QCSUSMCQBRJVJQU · pith_short_8: 5QCSUSMC

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/5QCSUSMCQBRJVJQU567HVT4WIK \
  | 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: ec052a498280629aa614efbe7acf96429a6dca4ddd75949c8d3edd622cc51c87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afe8aee9cc773c4a000283270879e21b276b15373d8ae4524bb3f82b1100f6ea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2024-03-23T18:50:50Z",
    "title_canon_sha256": "c57aaa4e880aabdbd4394a32600511767d83cb07807b22012bd4285506da9efb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2403.15910",
    "kind": "arxiv",
    "version": 3
  }
}