Pith Number

pith:OUKLHLLZ

pith:2012:OUKLHLLZIUXSHWCIUI6ZN47M7T

not attested not anchored not stored refs pending

An Empirical Comparison of V-fold Penalisation and Cross Validation for Model Selection in Distribution-Free Regression

Charanpal Dhanjal (LIP6), Nicolas Baskiotis (LIP6), Nicolas Usunier (LIP6), St\'ephan Cl\'emen\c{c}on (LTCI)

arxiv:1212.1780 v1 · 2012-12-08 · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OUKLHLLZIUXSHWCIUI6ZN47M7T}

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	2026-05-18T03:38:55.118827Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7514b3ad79452f23d848a23d96f3ecfcf425bde3e530bbaed63980b4c1b03e7e

Aliases

arxiv: 1212.1780 · arxiv_version: 1212.1780v1 · doi: 10.48550/arxiv.1212.1780 · pith_short_12: OUKLHLLZIUXS · pith_short_16: OUKLHLLZIUXSHWCI · pith_short_8: OUKLHLLZ

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/OUKLHLLZIUXSHWCIUI6ZN47M7T \
  | 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: 7514b3ad79452f23d848a23d96f3ecfcf425bde3e530bbaed63980b4c1b03e7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f4dc4cefcbc06b7427cae19850aebe19ec623fd9c47e9da12c44d76ce37fc253",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2012-12-08T11:34:10Z",
    "title_canon_sha256": "19af282ba70005cb548e68be561a772394c842bdd2659609d4e243c6091d597c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.1780",
    "kind": "arxiv",
    "version": 1
  }
}