Pith Number

pith:ZR5NVSYJ

pith:2015:ZR5NVSYJDHIJYY6J4HZDT3DNFF

not attested not anchored not stored refs pending

Inference in Linear Regression Models with Many Covariates and Heteroskedasticity

Matias D. Cattaneo, Michael Jansson, Whitney K. Newey

arxiv:1507.02493 v2 · 2015-07-09 · math.ST · econ.EM · stat.ME · 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{ZR5NVSYJDHIJYY6J4HZDT3DNFF}

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	2026-05-18T00:28:27.497245Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc7adacb0919d09c63c9e1f239ec6d297af07387ab855d1cd42f817413275bd4

Aliases

arxiv: 1507.02493 · arxiv_version: 1507.02493v2 · doi: 10.48550/arxiv.1507.02493 · pith_short_12: ZR5NVSYJDHIJ · pith_short_16: ZR5NVSYJDHIJYY6J · pith_short_8: ZR5NVSYJ

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/ZR5NVSYJDHIJYY6J4HZDT3DNFF \
  | 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: cc7adacb0919d09c63c9e1f239ec6d297af07387ab855d1cd42f817413275bd4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32ceba9e9cc42649d98649be5768d1b224f631cbab9017f57946ffe23d2f69d4",
    "cross_cats_sorted": [
      "econ.EM",
      "stat.ME",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2015-07-09T13:13:47Z",
    "title_canon_sha256": "209c40bad33bd9e64884f03922f864ced3c73b8dc03cfc31c34e001aab2ac28a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.02493",
    "kind": "arxiv",
    "version": 2
  }
}