Pith Number

pith:IYSH42UD

pith:2022:IYSH42UD4OKBHDGCJQ56TIXQVZ

not attested not anchored not stored refs pending

What Estimators Are Unbiased For Linear Models?

Jeffrey Wooldridge, Lihua Lei

arxiv:2212.14185 v1 · 2022-12-29 · econ.EM · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IYSH42UD4OKBHDGCJQ56TIXQVZ}

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	2026-07-05T05:29:07.157556Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46247e6a83e394138cc24c3be9a2f0ae55cc344cf88bdeda041d0fa6529987b6

Aliases

arxiv: 2212.14185 · arxiv_version: 2212.14185v1 · doi: 10.48550/arxiv.2212.14185 · pith_short_12: IYSH42UD4OKB · pith_short_16: IYSH42UD4OKBHDGC · pith_short_8: IYSH42UD

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/IYSH42UD4OKBHDGCJQ56TIXQVZ \
  | 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: 46247e6a83e394138cc24c3be9a2f0ae55cc344cf88bdeda041d0fa6529987b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54270df86302b4617e0bdfe443a73717989bb9ace889f1596668189b95c60298",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2022-12-29T06:19:44Z",
    "title_canon_sha256": "430f409d8ab53be52951f657cdcf26c144d632b49ba247b98766541b8d5c40ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2212.14185",
    "kind": "arxiv",
    "version": 1
  }
}