Pith Number

pith:U75KTWO2

pith:2021:U75KTWO2HIZ2VAV2R5TSSR5676

not attested not anchored not stored refs pending

Statistical Power for Estimating Treatment Effects Using Difference-in-Differences and Comparative Interrupted Time Series Designs with Variation in Treatment Timing

Peter Z. Schochet

arxiv:2102.06770 v2 · 2021-02-12 · stat.ME · 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{U75KTWO2HIZ2VAV2R5TSSR5676}

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	2026-07-05T03:22:45.197494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7faa9d9da3a33aa82ba8f672947beffb9a63de21cbde6a94da6b56f3cfdd99a

Aliases

arxiv: 2102.06770 · arxiv_version: 2102.06770v2 · doi: 10.48550/arxiv.2102.06770 · pith_short_12: U75KTWO2HIZ2 · pith_short_16: U75KTWO2HIZ2VAV2 · pith_short_8: U75KTWO2

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/U75KTWO2HIZ2VAV2R5TSSR5676 \
  | 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: a7faa9d9da3a33aa82ba8f672947beffb9a63de21cbde6a94da6b56f3cfdd99a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf9b8699b2077647de881d0835080adebae2a351ca6953183da123d0110b8b25",
    "cross_cats_sorted": [
      "econ.EM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2021-02-12T20:56:12Z",
    "title_canon_sha256": "edc5a6444654c5e9c14dc5502c6c77020d1dd6b0dd68e0dd5b23a6b7af6f5940"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.06770",
    "kind": "arxiv",
    "version": 2
  }
}