Pith Number

pith:MTIQCGWV

pith:2020:MTIQCGWV2KWUTLNNGVWBNJCB3F

not attested not anchored not stored refs pending

A Negative Correlation Strategy for Bracketing in Difference-in-Differences

Dylan S. Small, Luke Keele, Raiden Hasegawa, Ting Ye

arxiv:2006.02423 v3 · 2020-06-03 · stat.ME · econ.EM · stat.AP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MTIQCGWV2KWUTLNNGVWBNJCB3F}

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

Separable Effects in Four-Arm and Two-Arm Designs

Receipt and verification

First computed	2026-07-05T04:31:19.664340Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64d1011ad5d2ad49adad356c16a441d9435253d4164ec79cbafdb0d9fa2bbb4c

Aliases

arxiv: 2006.02423 · arxiv_version: 2006.02423v3 · doi: 10.48550/arxiv.2006.02423 · pith_short_12: MTIQCGWV2KWU · pith_short_16: MTIQCGWV2KWUTLNN · pith_short_8: MTIQCGWV

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/MTIQCGWV2KWUTLNNGVWBNJCB3F \
  | 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: 64d1011ad5d2ad49adad356c16a441d9435253d4164ec79cbafdb0d9fa2bbb4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e65d75beab2528cd5744404a434921d897dbc3cb1aa46b3b5d957a4d4eaf4f80",
    "cross_cats_sorted": [
      "econ.EM",
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2020-06-03T17:53:30Z",
    "title_canon_sha256": "bc7773c8647e766b48a712d7397a9fb6a7b869a580a3846c778473a92c96c07d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.02423",
    "kind": "arxiv",
    "version": 3
  }
}