Pith Number

pith:F3JEZ5OO

pith:2019:F3JEZ5OOT7MGMTWOVABIQHXNP6

not attested not anchored not stored refs pending

On the Properties of the Synthetic Control Estimator with Many Periods and Many Controls

Bruno Ferman

arxiv:1906.06665 v5 · 2019-06-16 · 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{F3JEZ5OOT7MGMTWOVABIQHXNP6}

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	2026-07-05T01:05:35.186162Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ed24cf5ce9fd8664ecea802881eed7fbda5743f7cb2e9597867c48d1375855e

Aliases

arxiv: 1906.06665 · arxiv_version: 1906.06665v5 · doi: 10.48550/arxiv.1906.06665 · pith_short_12: F3JEZ5OOT7MG · pith_short_16: F3JEZ5OOT7MGMTWO · pith_short_8: F3JEZ5OO

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/F3JEZ5OOT7MGMTWOVABIQHXNP6 \
  | 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: 2ed24cf5ce9fd8664ecea802881eed7fbda5743f7cb2e9597867c48d1375855e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bac1c53fdf68a22e1aa18099f9103b83d21586953684aafbc09ec318472e9d67",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2019-06-16T12:26:28Z",
    "title_canon_sha256": "52270246e32929d893d24d2c07a381b09e16fe5b91d9f439742008d6cad7c7b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.06665",
    "kind": "arxiv",
    "version": 5
  }
}