Pith Number

pith:WIFJBJXH

pith:2021:WIFJBJXHTBTRBUFPQHRE5UZ7BT

not attested not anchored not stored refs pending

Contamination Bias in Linear Regressions

Michal Koles\'ar, Paul Goldsmith-Pinkham, Peter Hull

arxiv:2106.05024 v5 · 2021-06-09 · 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{WIFJBJXHTBTRBUFPQHRE5UZ7BT}

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

Treatment Effect Estimators as Weighted Outcomes

Receipt and verification

First computed	2026-07-05T09:55:04.563479Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b20a90a6e7986710d0af81e24ed33f0cf72fab54e4b8bd2035a8a9bc1ad2b3d4

Aliases

arxiv: 2106.05024 · arxiv_version: 2106.05024v5 · doi: 10.48550/arxiv.2106.05024 · pith_short_12: WIFJBJXHTBTR · pith_short_16: WIFJBJXHTBTRBUFP · pith_short_8: WIFJBJXH

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/WIFJBJXHTBTRBUFPQHRE5UZ7BT \
  | 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: b20a90a6e7986710d0af81e24ed33f0cf72fab54e4b8bd2035a8a9bc1ad2b3d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "354215786be7ffc7ef99a747aff2f96170cef59c989988f0f61f97bd8a57192b",
    "cross_cats_sorted": [
      "stat.ME"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2021-06-09T12:33:59Z",
    "title_canon_sha256": "8ff18c55f35e5795644fa73ca20d81db9b019d9d16df6c8954cdae92d326a1db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.05024",
    "kind": "arxiv",
    "version": 5
  }
}