Pith Number

pith:GDU7N3V4

pith:2018:GDU7N3V4TLDQG7EDGTUDVXJWUQ

not attested not anchored not stored refs pending

Regression Discontinuity Designs Using Covariates

Matias D. Cattaneo, Max H. Farrell, Rocio Titiunik, Sebastian Calonico

arxiv:1809.03904 v1 · 2018-09-11 · econ.EM · 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{GDU7N3V4TLDQG7EDGTUDVXJWUQ}

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	2026-05-17T23:41:58.203659Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30e9f6eebc9ac7037c8334e83add36a4176ba55c133ce76588da501a8dca69a8

Aliases

arxiv: 1809.03904 · arxiv_version: 1809.03904v1 · doi: 10.48550/arxiv.1809.03904 · pith_short_12: GDU7N3V4TLDQ · pith_short_16: GDU7N3V4TLDQG7ED · pith_short_8: GDU7N3V4

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/GDU7N3V4TLDQG7EDGTUDVXJWUQ \
  | 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: 30e9f6eebc9ac7037c8334e83add36a4176ba55c133ce76588da501a8dca69a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f33188039918b29132e5179327eb6c84c143d6916c78e7076ff1348544b51a5",
    "cross_cats_sorted": [
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2018-09-11T13:58:17Z",
    "title_canon_sha256": "097754865cf91784dbda08ccc8657faf7c50d10bcd4eae0b3bfe4d4c7aa30e76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.03904",
    "kind": "arxiv",
    "version": 1
  }
}