Pith Number

pith:HWJWSZ3Z

pith:2022:HWJWSZ3ZCKLVFBAMRYOWRHVMYY

not attested not anchored not stored refs pending

Combined Pruning for Nested Cross-Validation to Accelerate Automated Hyperparameter Optimization for Embedded Feature Selection in High-Dimensional Data with Very Small Sample Sizes

Frank Klawonn, Sigrun May, Sven Hartmann

arxiv:2202.00598 v2 · 2022-02-01 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HWJWSZ3ZCKLVFBAMRYOWRHVMYY}

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	2026-07-05T04:56:14.379385Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d93696779129752840c8e1d689eacc62a2faed0b405850ab4b2c0304376cefb

Aliases

arxiv: 2202.00598 · arxiv_version: 2202.00598v2 · doi: 10.48550/arxiv.2202.00598 · pith_short_12: HWJWSZ3ZCKLV · pith_short_16: HWJWSZ3ZCKLVFBAM · pith_short_8: HWJWSZ3Z

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/HWJWSZ3ZCKLVFBAMRYOWRHVMYY \
  | 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: 3d93696779129752840c8e1d689eacc62a2faed0b405850ab4b2c0304376cefb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82176726ad50de81bbca06cd069cf389a68c1f43282fa024db7479acef8c5104",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2022-02-01T17:42:37Z",
    "title_canon_sha256": "9c88ed08df91efc1d7b7423d331033a78d6cce265d0aba4068257ff80e02fdc9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.00598",
    "kind": "arxiv",
    "version": 2
  }
}