Pith Number

pith:W4RUIOFE

pith:2024:W4RUIOFELW7X5XRB5A5PB4RFYQ

not attested not anchored not stored refs pending

Difference-in-Differences Estimators When No Unit Remains Untreated

Cl\'ement de Chaisemartin, Diego Ciccia, Felix Knau, Xavier D'Haultf{\oe}uille

arxiv:2405.04465 v7 · 2024-05-07 · 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{W4RUIOFELW7X5XRB5A5PB4RFYQ}

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	2026-07-27T01:21:07.515646Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7234438a45dbf7ede21e83af0f225c4275a3e3668e56b8e81ee26d6da28b2d1

Aliases

arxiv: 2405.04465 · arxiv_version: 2405.04465v7 · doi: 10.48550/arxiv.2405.04465 · pith_short_12: W4RUIOFELW7X · pith_short_16: W4RUIOFELW7X5XRB · pith_short_8: W4RUIOFE

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/W4RUIOFELW7X5XRB5A5PB4RFYQ \
  | 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: b7234438a45dbf7ede21e83af0f225c4275a3e3668e56b8e81ee26d6da28b2d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99aeed7b146e34826056ec131a3997a372b5fccd8b79d5da8577dd5fbba4c4f5",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2024-05-07T16:29:37Z",
    "title_canon_sha256": "3ca942b650ba28b0f2d4061f10dbfbba8f9eb4506a14b78f17ac6d7e256e4269"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2405.04465",
    "kind": "arxiv",
    "version": 7
  }
}