Pith Number

pith:A4NSEYD5

pith:2025:A4NSEYD5ZAUGRQYNX5BAOAV665

not attested not anchored not stored refs pending

Inference with few treated units

Bruno Ferman, Kaspar W\"uthrich, Luis Alvarez

arxiv:2504.19841 v3 · 2025-04-28 · 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{A4NSEYD5ZAUGRQYNX5BAOAV665}

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

2 papers in Pith

The Harmonic Synthetic Control Method

Treatment-effect heterogeneity and interactive fixed effects: Can we control for too much?

Receipt and verification

First computed	2026-05-22T01:03:14.637508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

071b22607dc82868c30dbf420702bef755a47b25a930a3bb479f76f889252922

Aliases

arxiv: 2504.19841 · arxiv_version: 2504.19841v3 · doi: 10.48550/arxiv.2504.19841 · pith_short_12: A4NSEYD5ZAUG · pith_short_16: A4NSEYD5ZAUGRQYN · pith_short_8: A4NSEYD5

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/A4NSEYD5ZAUGRQYNX5BAOAV665 \
  | 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: 071b22607dc82868c30dbf420702bef755a47b25a930a3bb479f76f889252922

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34e7e5bffb86d9c0a5557ec4a8d64d644d84381156c28afc3352fff94e59a262",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2025-04-28T14:41:13Z",
    "title_canon_sha256": "754ccf3b0af519395cb62eaa19f623b6c46308cb2a57938c0a81c31980ff821e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.19841",
    "kind": "arxiv",
    "version": 3
  }
}