Pith Number

pith:5XYZ5CEY

pith:2013:5XYZ5CEYU7LHOLYOY66U7VKDJ3

not attested not anchored not stored refs pending

Computing Robust Leverage Diagnostics when the Design Matrix Contains Coded Categorical Variables

Kjell Konis

arxiv:1301.5035 v1 · 2013-01-21 · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5XYZ5CEYU7LHOLYOY66U7VKDJ3}

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	2026-05-18T03:35:53.250530Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

edf19e8898a7d6772f0ec7bd4fd5434ef4019f3ceb925a78d96c92f6b943f277

Aliases

arxiv: 1301.5035 · arxiv_version: 1301.5035v1 · doi: 10.48550/arxiv.1301.5035 · pith_short_12: 5XYZ5CEYU7LH · pith_short_16: 5XYZ5CEYU7LHOLYO · pith_short_8: 5XYZ5CEY

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/5XYZ5CEYU7LHOLYOY66U7VKDJ3 \
  | 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: edf19e8898a7d6772f0ec7bd4fd5434ef4019f3ceb925a78d96c92f6b943f277

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "254a211da68b29ecaee57aefef757f0c75241f08783d7700965e47ab9afd6b53",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2013-01-21T23:14:39Z",
    "title_canon_sha256": "3b817e64c608e781173891dfc8713ff4013a08ee5a4ad5e869c413faf4843712"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.5035",
    "kind": "arxiv",
    "version": 1
  }
}