Pith Number

pith:Q4TZYPNK

pith:2018:Q4TZYPNKLRRR446LOOWVR4KKMK

not attested not anchored not stored refs pending

A Consistent Heteroskedasticity Robust LM Type Specification Test for Semiparametric Models

Ivan Korolev

arxiv:1810.07620 v3 · 2018-10-17 · econ.EM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q4TZYPNKLRRR446LOOWVR4KKMK}

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	2026-07-05T00:18:05.371057Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87279c3daa5c631e73cb73ad58f14a62b75e3ce9931a98e44205a720ebdb4e23

Aliases

arxiv: 1810.07620 · arxiv_version: 1810.07620v3 · doi: 10.48550/arxiv.1810.07620 · pith_short_12: Q4TZYPNKLRRR · pith_short_16: Q4TZYPNKLRRR446L · pith_short_8: Q4TZYPNK

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/Q4TZYPNKLRRR446LOOWVR4KKMK \
  | 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: 87279c3daa5c631e73cb73ad58f14a62b75e3ce9931a98e44205a720ebdb4e23

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "967c0c09b04d8fed5b43ab26319dd1ba2772f6deacf5ffbd006fa7caf5e69bbf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2018-10-17T15:37:02Z",
    "title_canon_sha256": "bc4c876d6e0a4f993b08e246c6a16233f72eae2b862782cd2662823d3d378cfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.07620",
    "kind": "arxiv",
    "version": 3
  }
}