Pith Number

pith:J7K64RLI

pith:2019:J7K64RLIFX745SEYXBJRATPAGU

not attested not anchored not stored refs pending

Synthetic Controls with Imperfect Pre-Treatment Fit

Bruno Ferman, Cristine Pinto

arxiv:1911.08521 v2 · 2019-11-19 · 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{J7K64RLIFX745SEYXBJRATPAGU}

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

Correlated Synthetic Controls

Receipt and verification

First computed	2026-07-05T02:06:05.596302Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4fd5ee45682dffcec898b853104de0352aed70ab928b09a39483314f90d162df

Aliases

arxiv: 1911.08521 · arxiv_version: 1911.08521v2 · doi: 10.48550/arxiv.1911.08521 · pith_short_12: J7K64RLIFX74 · pith_short_16: J7K64RLIFX745SEY · pith_short_8: J7K64RLI

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/J7K64RLIFX745SEYXBJRATPAGU \
  | 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: 4fd5ee45682dffcec898b853104de0352aed70ab928b09a39483314f90d162df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abf98093d2e3a688ce05f9435d5ed4dfc63a00f2be068a70692c7bb7162f6e06",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2019-11-19T19:32:10Z",
    "title_canon_sha256": "cbb28e6962192fb4abbb497e65fc106b149ad8402939519da4df1bcc7e80d22a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.08521",
    "kind": "arxiv",
    "version": 2
  }
}