Pith Number

pith:RBWSZ6SF

pith:2025:RBWSZ6SFOAXLWIIUT34GU6JOXE

not attested not anchored not stored refs pending

Best Subset Selection: Optimal Pursuit for Feature Selection and Elimination

Yanhao Zhang, Yong Xia, Zhihan Zhu

arxiv:2501.16815 v3 · 2025-01-28 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RBWSZ6SFOAXLWIIUT34GU6JOXE}

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	2026-07-05T11:54:29.369198Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

886d2cfa45702ebb21149ef86a792eb925cb714ea3460b6a5ba6f34829c282f4

Aliases

arxiv: 2501.16815 · arxiv_version: 2501.16815v3 · doi: 10.48550/arxiv.2501.16815 · pith_short_12: RBWSZ6SFOAXL · pith_short_16: RBWSZ6SFOAXLWIIU · pith_short_8: RBWSZ6SF

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/RBWSZ6SFOAXLWIIUT34GU6JOXE \
  | 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: 886d2cfa45702ebb21149ef86a792eb925cb714ea3460b6a5ba6f34829c282f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0520d44c4cbcf96e07f25e18cc34aa6a36a51e3fb54663bbf77f52b35672c43",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2025-01-28T09:44:27Z",
    "title_canon_sha256": "4cac12b0ea63741b06b4d4d8e9e180a7a10691b96865861c6d2213596b92d8c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.16815",
    "kind": "arxiv",
    "version": 3
  }
}