Pith Number

pith:AZ3BQAJW

pith:2022:AZ3BQAJWHBNDPDXLU24YSD6MAP

not attested not anchored not stored refs pending

Consistent Selection of the Number of Groups in Panel Models via Cross-Validation

Changliang Zou, Xuening Zhu, Zhe Li

arxiv:2209.05474 v4 · 2022-09-12 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AZ3BQAJWHBNDPDXLU24YSD6MAP}

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.

Cited by

1 paper in Pith

Testing Clustered Equal Predictive Ability with Unknown Clusters

Receipt and verification

First computed	2026-06-23T01:11:51.671476Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0676180136385a378eeba6b9890fcc03c928ff7f6692c8001a7f8747ecf1ac0b

Aliases

arxiv: 2209.05474 · arxiv_version: 2209.05474v4 · doi: 10.48550/arxiv.2209.05474 · pith_short_12: AZ3BQAJWHBND · pith_short_16: AZ3BQAJWHBNDPDXL · pith_short_8: AZ3BQAJW

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/AZ3BQAJWHBNDPDXLU24YSD6MAP \
  | 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: 0676180136385a378eeba6b9890fcc03c928ff7f6692c8001a7f8747ecf1ac0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e86256745cd7d1817c65ca55a7af4cd0bdaddcec5d8bc02755c1e1d6ba4af6da",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2022-09-12T17:59:02Z",
    "title_canon_sha256": "3634d3cf4f1cfc7ce6ca9a63ce77ed0ca740fa69599b8341d2d73441e6e083e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.05474",
    "kind": "arxiv",
    "version": 4
  }
}