Pith Number

pith:MJOA2QRT

pith:2026:MJOA2QRTC2QBK3VA3FO5NBXQEF

not attested not anchored not stored refs pending

Two-way Clustering Robust Variance Estimator in Quantile Regression Models

Jiahao Lin, Ulrich Hounyo

arxiv:2602.16376 v2 · 2026-02-18 · 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{MJOA2QRTC2QBK3VA3FO5NBXQEF}

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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	2026-05-26T01:02:32.357098Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

625c0d423316a0156ea0d95dd686f0216ab5a6bb0eb46c1391f8925ce43b1c1c

Aliases

arxiv: 2602.16376 · arxiv_version: 2602.16376v2 · doi: 10.48550/arxiv.2602.16376 · pith_short_12: MJOA2QRTC2QB · pith_short_16: MJOA2QRTC2QBK3VA · pith_short_8: MJOA2QRT

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/MJOA2QRTC2QBK3VA3FO5NBXQEF \
  | 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: 625c0d423316a0156ea0d95dd686f0216ab5a6bb0eb46c1391f8925ce43b1c1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8bbacf80d6f6370dcacc9744b6424cbe60e8fb090bb2fd3650061827707838ab",
    "cross_cats_sorted": [
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2026-02-18T11:35:18Z",
    "title_canon_sha256": "a7572ae4d11abb958e171a8c83e4cfc6081ff56011d739a5475ff1be1f315beb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.16376",
    "kind": "arxiv",
    "version": 2
  }
}