Pith Number

pith:MHBPS4BK

pith:2025:MHBPS4BKVQSMXIMVKPMJ4BDEUU

not attested not anchored not stored refs pending

Using causal diagrams to assess parallel trends in difference-in-differences studies

Audrey Renson, Oliver Dukes, Zach Shahn

arxiv:2505.03526 v1 · 2025-05-06 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MHBPS4BKVQSMXIMVKPMJ4BDEUU}

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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

A formal approach to variable selection in difference-in-differences

Receipt and verification

First computed	2026-07-05T10:59:17.648837Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61c2f9702aac24cba19553d89e0464a511c1586d8e0632e45d633e6b236c19f9

Aliases

arxiv: 2505.03526 · arxiv_version: 2505.03526v1 · doi: 10.48550/arxiv.2505.03526 · pith_short_12: MHBPS4BKVQSM · pith_short_16: MHBPS4BKVQSMXIMV · pith_short_8: MHBPS4BK

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/MHBPS4BKVQSMXIMVKPMJ4BDEUU \
  | 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: 61c2f9702aac24cba19553d89e0464a511c1586d8e0632e45d633e6b236c19f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b6f72ac7206e891aeb2569516cd6a66ac45879bcadd3b5dc23c2f7f7434edba",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2025-05-06T13:37:11Z",
    "title_canon_sha256": "37e0a7284faaf44b249f563b10bb9df703bee9900f5fcbb4786fdb86f553552d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.03526",
    "kind": "arxiv",
    "version": 1
  }
}